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[nongnu] elpa/subed 6812364955 1/9: test-subed-common.el: Clean up dupli


From: ELPA Syncer
Subject: [nongnu] elpa/subed 6812364955 1/9: test-subed-common.el: Clean up duplicated sexps
Date: Sat, 25 Nov 2023 16:00:53 -0500 (EST)

branch: elpa/subed
commit 681236495583c0286cfedfc89b67702a4bdfbab5
Author: Sacha Chua <sacha@sachachua.com>
Commit: Sacha Chua <sacha@sachachua.com>

    test-subed-common.el: Clean up duplicated sexps
---
 tests/test-subed-common.el | 6991 --------------------------------------------
 1 file changed, 6991 deletions(-)

diff --git a/tests/test-subed-common.el b/tests/test-subed-common.el
index cdd5eeca56..926c210eab 100644
--- a/tests/test-subed-common.el
+++ b/tests/test-subed-common.el
@@ -372,6997 +372,6 @@ Baz.
                                        (let ((subed-enforce-time-boundaries 
'error)
                                                                (temp-time 
(subed-timestamp-to-msecs "00:03:01,000")))
                                                (subed-set-subtitle-time-stop 
temp-time nil t)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal temp-time))))))
-  (describe "Adjusting subtitle start/stop time"
-    :var (subed-subtitle-time-adjusted-hook)
-    (it "runs the appropriate hook."
-      (let ((foo (setf (symbol-function 'foo) (lambda (msecs) ()))))
-        (spy-on 'foo)
-        (with-temp-srt-buffer
-                                       (add-hook 
'subed-subtitle-time-adjusted-hook 'foo)
-                                       (insert mock-srt-data)
-                                       (subed-jump-to-subtitle-id 1)
-                                       (expect 
(subed-adjust-subtitle-time-start 100) :to-equal 100)
-                                       (expect 'foo :to-have-been-called-with 
61100)
-                                       (expect 'foo :to-have-been-called-times 
1)
-                                       (expect 
(subed-adjust-subtitle-time-stop 123) :to-equal 123)
-                                       (expect 'foo :to-have-been-called-with 
61100)
-                                       (expect 'foo :to-have-been-called-times 
2)
-                                       (subed-jump-to-subtitle-id 2)
-                                       (expect 
(subed-adjust-subtitle-time-start 6) :to-equal 6)
-                                       (expect 'foo :to-have-been-called-with 
122240)
-                                       (expect 'foo :to-have-been-called-times 
3)
-                                       (expect 
(subed-adjust-subtitle-time-stop 123) :to-equal 123)
-                                       (expect 'foo :to-have-been-called-with 
122240)
-                                       (expect 'foo :to-have-been-called-times 
4))))
-    (it "adjusts the start/stop time."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (subed-jump-to-subtitle-id 1)
-                               (expect (subed-adjust-subtitle-time-start 100) 
:to-equal 100)
-                               (expect (save-excursion 
(subed-jump-to-subtitle-time-start)
-                                                                               
                                                (thing-at-point 'line)) 
:to-equal "00:01:01,100 --> 00:01:05,123\n")
-                               (expect (subed-adjust-subtitle-time-start -200) 
:to-equal -200)
-                               (expect (save-excursion 
(subed-jump-to-subtitle-time-start)
-                                                                               
                                                (thing-at-point 'line)) 
:to-equal "00:01:00,900 --> 00:01:05,123\n")
-                               (expect (subed-adjust-subtitle-time-stop 200) 
:to-equal 200)
-                               (expect (save-excursion 
(subed-jump-to-subtitle-time-start)
-                                                                               
                                                (thing-at-point 'line)) 
:to-equal "00:01:00,900 --> 00:01:05,323\n")
-                               (expect (subed-adjust-subtitle-time-stop -100) 
:to-equal -100)
-                               (expect (save-excursion 
(subed-jump-to-subtitle-time-start)
-                                                                               
                                                (thing-at-point 'line)) 
:to-equal "00:01:00,900 --> 00:01:05,223\n")))
-    (describe "when enforcing boundaries with errors"
-      (describe "when decreasing start time"
-        (it "handles the first subtitle."
-          (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                                "Foo.\n"))
-                                               (let 
((subed-enforce-time-boundaries 'error))
-                                                       (expect 
subed-enforce-time-boundaries :to-equal 'error)
-                                                       (expect 
(subed-adjust-subtitle-time-start -999) :to-be -999)
-                                                       (expect 
(subed-subtitle-msecs-start) :to-be 1)
-                                                       (expect 
(subed-adjust-subtitle-time-start -1) :to-be -1)
-                                                       (expect 
(subed-subtitle-msecs-start) :to-be 0)
-                                                       (expect 
(subed-adjust-subtitle-time-start -1) :to-throw 'error))))
-        (it "handles a non-first subtitle."
-          (with-temp-srt-buffer
-                                               (insert (concat "1\n"
-                                                                               
                                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                                "Foo.\n\n"
-                                                                               
                                "2\n"
-                                                                               
                                "00:00:03,000 --> 00:00:04,000\n"
-                                                                               
                                "Bar.\n\n"))
-                                               (subed-jump-to-subtitle-id 2)
-                                               (let 
((subed-enforce-time-boundaries 'error)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       (expect 
(subed-adjust-subtitle-time-start -899) :to-be -899)
-                                                       (expect 
(subed-subtitle-msecs-start) :to-be 2101)
-                                                       (expect 
(subed-adjust-subtitle-time-start -1) :to-be -1)
-                                                       (expect 
(subed-subtitle-msecs-start) :to-be 2100)
-                                                       ;; report an error if 
it bumps up against a previous subtitle
-                                                       (expect 
(subed-adjust-subtitle-time-start -1) :to-throw 'error)
-                                                       (expect 
(subed-subtitle-msecs-start) :to-be 2100)))))
-      (it "increases start time."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:03,000 --> 00:00:04,000\n"
-                                                                               
                        "Bar.\n\n"))
-                                       (subed-jump-to-subtitle-id 2)
-                                       (let ((subed-enforce-time-boundaries 
'error)
-                                                               
(subed-subtitle-spacing 100))
-                                               (expect 
(subed-adjust-subtitle-time-start 999) :to-be 999)
-                                               (expect 
(subed-subtitle-msecs-start) :to-be 3999)
-                                               (expect 
(subed-adjust-subtitle-time-start 1) :to-be 1)
-                                               (expect 
(subed-subtitle-msecs-start) :to-be 4000)
-                                               (expect 
(subed-adjust-subtitle-time-start 1) :to-throw 'error)
-                                               (expect 
(subed-subtitle-msecs-start) :to-be 4000))))
-      (it "decreases stop time."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:03,000 --> 00:00:04,000\n"
-                                                                               
                        "Bar.\n\n"))
-                                       (subed-jump-to-subtitle-id 2)
-                                       (let ((subed-enforce-time-boundaries 
'error)
-                                                               
(subed-subtitle-spacing 100))
-                                               (expect 
(subed-adjust-subtitle-time-stop -999) :to-be -999)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-be 3001)
-                                               (expect 
(subed-adjust-subtitle-time-stop -1) :to-be -1)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-be 3000)
-                                               (expect 
(subed-adjust-subtitle-time-stop -1) :to-throw 'error)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-be 3000))))
-      (describe "when increasing stop time"
-        (it "increases the last subtitle."
-          (with-temp-srt-buffer
-                                               (insert (concat "1\n"
-                                                                               
                                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                                "Foo.\n\n"
-                                                                               
                                "2\n"
-                                                                               
                                "00:00:03,000 --> 00:00:04,000\n"
-                                                                               
                                "Bar.\n\n"))
-                                               (subed-jump-to-subtitle-id 2)
-                                               (expect 
(subed-adjust-subtitle-time-stop 1000000):to-be 1000000)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-be 1004000)))
-        (it "increases a non-last subtitle."
-          (with-temp-srt-buffer
-                                               (insert (concat "1\n"
-                                                                               
                                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                                "Foo.\n\n"
-                                                                               
                                "2\n"
-                                                                               
                                "00:00:03,000 --> 00:00:04,000\n"
-                                                                               
                                "Bar.\n\n"))
-                                               (subed-jump-to-subtitle-id 1)
-                                               (expect 
(subed-adjust-subtitle-time-stop 899) :to-be 899)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-be 2899)
-                                               (expect 
(subed-adjust-subtitle-time-stop 1) :to-be 1)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-be 2900)
-                                               (let 
((subed-enforce-time-boundaries 'error)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       (expect 
(subed-adjust-subtitle-time-stop 1) :to-throw 'error)
-                                                       (expect 
(subed-subtitle-msecs-stop) :to-be 2900)))))
-      (it "increases without undershooting the target time."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,000 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (subed-jump-to-subtitle-id 1)
-                                       (let ((subed-enforce-time-boundaries 
'error)
-                                                               
(subed-subtitle-spacing 100))
-                                               (expect 
(subed-adjust-subtitle-time-stop 1) :to-throw 'error)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal 2000))))
-      (it "increases without overshooting the target time."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,000 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (subed-jump-to-subtitle-id 2)
-                                       (let ((subed-enforce-time-boundaries 
'error)
-                                                               
(subed-subtitle-spacing 100))
-                                               (expect 
(subed-adjust-subtitle-time-start -1) :to-throw 'error)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal 2000))))
-      )
-    (describe "ignores negative duration if the second argument is truthy"
-      (it "when adjusting start time."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"))
-                                       (expect 
(subed-adjust-subtitle-time-start 2000 t) :to-be 2000)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 3000)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 2000)
-                                       (expect 
(subed-adjust-subtitle-time-start -500 t) :to-be -500)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 2500)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 2000)))
-      (it "when adjusting stop time."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"))
-                                       (expect 
(subed-adjust-subtitle-time-stop -1500 t) :to-be -1500)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 500)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 1000)
-                                       (expect 
(subed-adjust-subtitle-time-stop 200 t) :to-be 200)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 700)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 1000)))
-      )
-    (describe "ignores subtitle spacing if the second argument is truthy"
-      (it "when adjusting start time."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,200 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (subed-jump-to-subtitle-id 2)
-                                       (expect 
(subed-adjust-subtitle-time-start -150 nil t) :to-be -150)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-be 2050)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-be 2000)
-                                       (expect 
(subed-adjust-subtitle-time-start -51 nil t) :to-be -51)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-be 1999)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-be 2000)))
-      (it "when adjusting stop time."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,200 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (subed-jump-to-subtitle-id 1)
-                                       (expect 
(subed-adjust-subtitle-time-stop 150 nil t) :to-be 150)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-be 2150)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-be 2200)
-                                       (expect 
(subed-adjust-subtitle-time-stop 51 nil t) :to-be 51)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-be 2201)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-be 2200)))
-      )
-    (describe "ignores negative duration if subed-enforce-time-boundaries is 
falsy"
-      (it "when adjusting start time."
-        (with-temp-srt-buffer
-                                       (setq-local 
subed-enforce-time-boundaries nil)
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"))
-                                       (expect 
(subed-adjust-subtitle-time-start 2000) :to-be 2000)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 3000)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 2000)
-                                       (expect 
(subed-adjust-subtitle-time-start -500) :to-be -500)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 2500)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 2000)))
-      (it "when adjusting stop time."
-        (with-temp-srt-buffer
-                                       (setq-local 
subed-enforce-time-boundaries nil)
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"))
-                                       (expect 
(subed-adjust-subtitle-time-stop -1500) :to-be -1500)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 500)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 1000)
-                                       (expect 
(subed-adjust-subtitle-time-stop 200) :to-be 200)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 700)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 1000)))
-      )
-    (describe "ignores subtitle spacing if subed-enforce-time-boundaries is 
falsy"
-      (it "when adjusting start time."
-        (with-temp-srt-buffer
-                                       (setq-local 
subed-enforce-time-boundaries nil)
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,200 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (subed-jump-to-subtitle-id 2)
-                                       (expect 
(subed-adjust-subtitle-time-start -150) :to-be -150)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-be 2050)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-be 2000)
-                                       (expect 
(subed-adjust-subtitle-time-start -51) :to-be -51)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-be 1999)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-be 2000)))
-      (it "when adjusting stop time."
-        (with-temp-srt-buffer
-                                       (setq-local 
subed-enforce-time-boundaries nil)
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,200 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (subed-jump-to-subtitle-id 1)
-                                       (expect 
(subed-adjust-subtitle-time-stop 150) :to-be 150)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-be 2150)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-be 2200)
-                                       (expect 
(subed-adjust-subtitle-time-stop 51) :to-be 51)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-be 2201)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-be 2200)))
-      )
-    (describe "prevents negative time even if subed-enforce-time-boundaries is 
falsy"
-      (it "when adjusting start time."
-        (with-temp-srt-buffer
-                                       (setq-local 
subed-enforce-time-boundaries nil)
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"))
-                                       (expect 
(subed-adjust-subtitle-time-start -1000) :to-be -1000)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 0)
-                                       (expect 
(subed-adjust-subtitle-time-start -1) :to-be 0)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 0)))
-      (it "when adjusting stop time."
-        (with-temp-srt-buffer
-                                       (setq-local 
subed-enforce-time-boundaries nil)
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"))
-                                       (expect 
(subed-adjust-subtitle-time-stop -2000) :to-be -2000)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 0)
-                                       (expect 
(subed-adjust-subtitle-time-stop -1) :to-be nil)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 0)))
-      )
-    (it "does nothing if no timestamp can be found."
-      (with-temp-srt-buffer
-                               (insert "foo")
-                               (goto-char (point-min))
-                               (expect (subed-adjust-subtitle-time-start 123) 
:to-be nil)
-                               (expect (buffer-string) :to-equal "foo")
-                               (expect (subed-adjust-subtitle-time-start -123) 
:to-be nil)
-                               (expect (buffer-string) :to-equal "foo")))
-    )
-
-  (describe "Copy start/stop time from player"
-    :var (subed-mpv-playback-position)
-    (it "does nothing in an empty buffer."
-      (with-temp-srt-buffer
-                               (let ((subed-mpv-playback-position 12345))
-                                       (expect 
(subed-copy-player-pos-to-start-time) :to-be nil)
-                                       (expect 
(subed-copy-player-pos-to-stop-time) :to-be nil)
-                                       (expect (buffer-string) :to-equal ""))))
-    (it "does nothing if player position is unknown."
-      (with-temp-srt-buffer
-                               (insert (concat "1\n"
-                                                                               
                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                "Foo.\n"))
-                               (let ((subed-mpv-playback-position nil))
-                                       (expect 
(subed-copy-player-pos-to-start-time) :to-be nil)
-                                       (expect 
(subed-copy-player-pos-to-stop-time) :to-be nil)
-                                       (expect (buffer-string) :to-equal 
(concat "1\n"
-                                                                               
                                                                                
                                                "00:00:01,000 --> 
00:00:02,000\n"
-                                                                               
                                                                                
                                                "Foo.\n")))))
-    (it "sets start/stop time when possible."
-      (with-temp-srt-buffer
-                               (insert (concat "1\n"
-                                                                               
                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                "Foo.\n"))
-                               (let ((subed-mpv-playback-position (+ 60000 
2000 123))
-                                                       
(subed-enforce-time-boundaries nil))
-                                       (expect 
(subed-copy-player-pos-to-start-time) :to-be subed-mpv-playback-position)
-                                       (expect (buffer-string) :to-equal 
(concat "1\n"
-                                                                               
                                                                                
                                                "00:01:02,123 --> 
00:00:02,000\n"
-                                                                               
                                                                                
                                                "Foo.\n")))
-                               (let ((subed-mpv-playback-position (+ 60000 
5000 456))
-                                                       
(subed-enforce-time-boundaries nil))
-                                       (expect 
(subed-copy-player-pos-to-stop-time) :to-be subed-mpv-playback-position)
-                                       (expect (buffer-string) :to-equal 
(concat "1\n"
-                                                                               
                                                                                
                                                "00:01:02,123 --> 
00:01:05,456\n"
-                                                                               
                                                                                
                                                "Foo.\n")))))
-    (it "runs the appropriate hook."
-      (with-temp-srt-buffer
-                               (insert (concat "1\n"
-                                                                               
                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                "Foo.\n"))
-                               (let ((foo (setf (symbol-function 'foo) (lambda 
(msecs) ())))
-                                                       
(subed-enforce-time-boundaries nil))
-                                       (spy-on 'foo)
-                                       (add-hook 
'subed-subtitle-time-adjusted-hook 'foo)
-                                       (let ((subed-mpv-playback-position (+ 
60000 2000 123)))
-                                               (expect 
(subed-copy-player-pos-to-start-time) :to-be subed-mpv-playback-position)
-                                               (expect (buffer-string) 
:to-equal (concat "1\n"
-                                                                               
                                                                                
                                                        "00:01:02,123 --> 
00:00:02,000\n"
-                                                                               
                                                                                
                                                        "Foo.\n"))
-                                               (expect (spy-calls-args-for 
'foo 0) :to-equal `(,(+ 60000 2000 123)))
-                                               (expect (spy-calls-count 'foo) 
:to-equal 1)))
-                               (let ((subed-mpv-playback-position (+ 60000 
5000 456)))
-                                       (expect 
(subed-copy-player-pos-to-stop-time) :to-be subed-mpv-playback-position)
-                                       (expect (buffer-string) :to-equal 
(concat "1\n"
-                                                                               
                                                                                
                                                "00:01:02,123 --> 
00:01:05,456\n"
-                                                                               
                                                                                
                                                "Foo.\n"))
-                                       (expect (spy-calls-args-for 'foo 0) 
:to-equal `(,(+ 60000 2000 123)))
-                                       (expect (spy-calls-count 'foo) 
:to-equal 2)))
-      (remove-hook 'subed-subtitle-time-adjusted-hook 'foo))
-    )
-
-  (describe "Jumping"
-    (describe "to subtitle text given msecs"
-      (it "finds the right subtitle"
-        (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (subed-jump-to-subtitle-text-at-msecs 
122234)
-                                       (expect (looking-at "Bar\\.") :to-equal 
t)))))
-  (describe "Moving"
-    (it "adjusts start and stop time by the same amount."
-      (with-temp-srt-buffer
-                               (insert (concat "1\n"
-                                                                               
                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                "Foo.\n"))
-                               (let ((orig-point (subed-jump-to-subtitle-text 
1)))
-                                       (subed-move-subtitle-forward 100)
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 1100)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 2100)
-                                       (subed-move-subtitle-backward 200)
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 900)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 1900)
-                                       (expect (point) :to-equal orig-point))))
-               (describe "when clipping to time boundaries"
-                       (it "adjusts start and stop time by the same amount 
when bumping into next subtitle."
-                               (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:01,600\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,000 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-id 1))
-                                                               
(subed-subtitle-spacing 100)
-                                                               
(subed-enforce-time-boundaries 'clip))
-                                               (subed-move-subtitle-forward 
1000)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal 1300)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal 1900)
-                                               (expect (point) :to-equal 
orig-point))))
-                       (it "adjusts start and stop time by the same amount 
when bumping into previous subtitle."
-                               (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:01,600\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,000 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-id 2))
-                                                               
(subed-subtitle-spacing 100)
-                                                               
(subed-enforce-time-boundaries 'clip))
-                                               (subed-move-subtitle-backward 
1000)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal 1700)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal 2700)
-                                               (expect (point) :to-equal 
orig-point)))))
-               (describe "when time boundaries are enforced with errors"
-                       (it "does not adjust anything if subtitle cannot be 
moved forward at all."
-                               (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,000 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-id 1))
-                                                               
(subed-enforce-time-boundaries 'error))
-                                               (expect 
(subed-move-subtitle-forward 1) :to-throw 'error)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3000)
-                                               (expect (point) :to-equal 
orig-point))))
-                       (it "does not adjust anything if subtitle cannot be 
moved backward at all."
-                               (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,000 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-id 2))
-                                                               
(subed-enforce-time-boundaries 'error))
-                                               (expect 
(subed-move-subtitle-backward 1) :to-throw 'error)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3000)
-                                               (expect (point) :to-equal 
orig-point)))))
-    (describe "adjusts subtitles in the active region,"
-      (it "excluding the first subtitle."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:03,000 --> 00:00:04,000\n"
-                                                                               
                        "Bar.\n\n"
-                                                                               
                        "3\n"
-                                                                               
                        "00:00:05,000 --> 00:00:06,000\n"
-                                                                               
                        "Baz.\n"))
-                                       (setq mark-active t)
-                                       (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-text 2))
-                                       (spy-on 'region-end :and-return-value 
(subed-jump-to-subtitle-time-start 3))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-text 2)))
-                                               (subed-move-subtitle-forward 
100)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 3100)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 4100)
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal 5100)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 6100)
-                                               (expect (point) :to-equal 
orig-point)
-                                               (subed-move-subtitle-backward 
200)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 2900)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3900)
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal 4900)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 5900)
-                                               (expect (point) :to-equal 
orig-point))))
-      (it "excluding the last subtitle."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:03,000 --> 00:00:04,000\n"
-                                                                               
                        "Bar.\n\n"
-                                                                               
                        "3\n"
-                                                                               
                        "00:00:05,000 --> 00:00:06,000\n"
-                                                                               
                        "Baz.\n"))
-                                       (setq mark-active t)
-                                       (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-text 1))
-                                       (spy-on 'region-end :and-return-value 
(subed-jump-to-subtitle-time-stop 2))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-time-stop 3)))
-                                               (subed-move-subtitle-forward 
500)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 1500)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2500)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 3500)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 4500)
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal 5000)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 6000)
-                                               (expect (point) :to-equal 
orig-point)
-                                               (subed-move-subtitle-backward 
300)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 1200)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2200)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 3200)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 4200)
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal 5000)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 6000)
-                                               (expect (point) :to-equal 
orig-point))))
-                       (describe "when ignoring time boundaries"
-                               (it "does not change spacing between subtitles 
when moving subtitles forward."
-                                       (with-temp-srt-buffer
-                                               (insert "1\n"
-                                                                               
"00:00:01,000 --> 00:00:02,000\n"
-                                                                               
"Foo.\n\n"
-                                                                               
"2\n"
-                                                                               
"00:00:10,000 --> 00:00:11,000\n"
-                                                                               
"Bar.\n\n"
-                                                                               
"3\n"
-                                                                               
"00:00:12,000 --> 00:00:13,000\n"
-                                                                               
"Baz.\n")
-                                               (setq mark-active t)
-                                               (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-id 1))
-                                               (spy-on 'region-end 
:and-return-value (subed-jump-to-subtitle-text 2))
-                                               (let ((orig-point 
(subed-jump-to-subtitle-time-start 1))
-                                                                       
(subed-enforce-time-boundaries nil))
-                                                       
(subed-move-subtitle-forward 2000)
-                                                       (expect 
(subed-subtitle-msecs-start 1) :to-equal 3000)
-                                                       (expect 
(subed-subtitle-msecs-stop 1) :to-equal 4000)
-                                                       (expect 
(subed-subtitle-msecs-start 2) :to-equal 12000)
-                                                       (expect 
(subed-subtitle-msecs-stop 2) :to-equal 13000)
-                                                       (expect 
(subed-subtitle-msecs-start 3) :to-equal 12000)
-                                                       (expect 
(subed-subtitle-msecs-stop 3) :to-equal 13000)
-                                                       (expect (point) 
:to-equal orig-point))))
-                               (it "does not change spacing between subtitles 
when moving subtitles backward."
-                                       (with-temp-srt-buffer
-                                               (insert (concat "1\n"
-                                                                               
                                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                                "Foo.\n\n"
-                                                                               
                                "2\n"
-                                                                               
                                "00:00:03,000 --> 00:00:04,000\n"
-                                                                               
                                "Bar.\n\n"
-                                                                               
                                "3\n"
-                                                                               
                                "00:00:10,000 --> 00:00:11,000\n"
-                                                                               
                                "Baz.\n"))
-                                               (setq mark-active t)
-                                               (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-id 2))
-                                               (spy-on 'region-end 
:and-return-value (subed-jump-to-subtitle-text 3))
-                                               (let ((orig-point 
(subed-jump-to-subtitle-time-start 2))
-                                                                       
(subed-enforce-time-boundaries nil))
-                                                       
(subed-move-subtitle-backward 1000)
-                                                       (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-                                                       (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                                       (expect 
(subed-subtitle-msecs-start 2) :to-equal 2000)
-                                                       (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3000)
-                                                       (expect 
(subed-subtitle-msecs-start 3) :to-equal 9000)
-                                                       (expect 
(subed-subtitle-msecs-stop 3) :to-equal 10000)
-                                                       (expect (point) 
:to-equal orig-point))))))
-               ;; What does it mean by not having space left?
-    ;; (describe "unless there is no space left"
-               ;;      (describe "when moving forward"
-               ;;              (it "updates the start time."
-               ;;                      (with-temp-srt-buffer
-               ;;                              (insert (concat "1\n"
-               ;;                                                              
                                "00:00:01,000 --> 00:00:02,000\n"
-               ;;                                                              
                                "Foo.\n\n"
-               ;;                                                              
                                "2\n"
-               ;;                                                              
                                "00:00:10,000 --> 00:00:11,000\n"
-               ;;                                                              
                                "Bar.\n\n"
-               ;;                                                              
                                "3\n"
-               ;;                                                              
                                "00:00:11,000 --> 00:00:12,000\n"
-               ;;                                                              
                                "Baz.\n"))
-               ;;                              (setq mark-active t)
-               ;;                              (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-id 1))
-               ;;                              (spy-on 'region-end 
:and-return-value (subed-jump-to-subtitle-text 2))
-               ;;                              (let ((orig-point 
(subed-jump-to-subtitle-text 1)))
-               ;;                                      
(subed-move-subtitle-forward 1)
-               ;;                                      (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-               ;;                                      (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-               ;;                                      (expect 
(subed-subtitle-msecs-start 2) :to-equal 10000)
-               ;;                                      (expect 
(subed-subtitle-msecs-stop 2) :to-equal 11000)
-               ;;                                      (expect 
(subed-subtitle-msecs-start 3) :to-equal 11000)
-               ;;                                      (expect 
(subed-subtitle-msecs-stop 3) :to-equal 12000)
-               ;;                                      (expect (point) 
:to-equal orig-point)))))
-    ;;   (it "when moving backward."
-    ;;     (with-temp-srt-buffer
-               ;;                      (insert (concat "1\n"
-               ;;                                                              
                        "00:00:01,000 --> 00:00:02,000\n"
-               ;;                                                              
                        "Foo.\n\n"
-               ;;                                                              
                        "2\n"
-               ;;                                                              
                        "00:00:02,000 --> 00:00:03,000\n"
-               ;;                                                              
                        "Bar.\n\n"
-               ;;                                                              
                        "3\n"
-               ;;                                                              
                        "00:00:11,000 --> 00:00:12,000\n"
-               ;;                                                              
                        "Baz.\n"))
-               ;;                      (setq mark-active t)
-               ;;                      (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-id 2))
-               ;;                      (spy-on 'region-end :and-return-value 
(subed-jump-to-subtitle-text 3))
-               ;;                      (let ((orig-point 
(subed-jump-to-subtitle-id 3)))
-               ;;                              (subed-move-subtitle-backward 1)
-               ;;                              (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-               ;;                              (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-               ;;                              (expect 
(subed-subtitle-msecs-start 2) :to-equal 2000)
-               ;;                              (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3000)
-               ;;                              (expect 
(subed-subtitle-msecs-start 3) :to-equal 11000)
-               ;;                              (expect 
(subed-subtitle-msecs-stop 3) :to-equal 12000)
-               ;;                              (expect (point) :to-equal 
orig-point))))
-    ;;   )
-    (describe "ignoring spacing for non-leading subtitles"
-      (it "when moving forward."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:00,000 --> 00:00:01,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:01,050 --> 00:00:02,000\n"
-                                                                               
                        "Bar.\n\n"
-                                                                               
                        "3\n"
-                                                                               
                        "00:00:05,000 --> 00:00:6,000\n"
-                                                                               
                        "Baz.\n"))
-                                       (setq mark-active t)
-                                       (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-id 1))
-                                       (spy-on 'region-end :and-return-value 
(subed-jump-to-subtitle-text 2))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-time-start 3)))
-                                               (subed-move-subtitle-forward 
1000)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 2050)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3000)
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal 5000)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 6000)
-                                               (expect (point) :to-equal 
orig-point))))
-      (it "when moving backward."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:04,000 --> 00:00:05,000\n"
-                                                                               
                        "Bar.\n\n"
-                                                                               
                        "3\n"
-                                                                               
                        "00:00:05,000 --> 00:00:05,000\n"
-                                                                               
                        "Baz.\n"))
-                                       (setq mark-active t)
-                                       (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-id 2))
-                                       (spy-on 'region-end :and-return-value 
(subed-jump-to-subtitle-text 3))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-time-stop 1)))
-                                               (subed-move-subtitle-backward 
1000)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 3000)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 4000)
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal 4000)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 4000)
-                                               (expect (point) :to-equal 
orig-point))))
-      )
-    (describe "ignoring overlapping subtitles"
-      (it "when moving forward."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:01,500\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:01,300 --> 00:00:02,000\n"
-                                                                               
                        "Bar.\n\n"
-                                                                               
                        "3\n"
-                                                                               
                        "00:00:05,000 --> 00:00:6,000\n"
-                                                                               
                        "Baz.\n"))
-                                       (setq mark-active t)
-                                       (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-id 1))
-                                       (spy-on 'region-end :and-return-value 
(subed-jump-to-subtitle-text 2))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-text 2)))
-                                               (subed-move-subtitle-forward 
1000)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2500)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 2300)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3000)
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal 5000)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 6000)
-                                               (expect (point) :to-equal 
orig-point))))
-      (it "when moving backward."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:04,500 --> 00:00:04,000\n"
-                                                                               
                        "Bar.\n\n"
-                                                                               
                        "3\n"
-                                                                               
                        "00:00:04,500 --> 00:00:04,490\n"
-                                                                               
                        "Baz.\n"))
-                                       (setq mark-active t)
-                                       (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-id 2))
-                                       (spy-on 'region-end :and-return-value 
(subed-jump-to-subtitle-text 3))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-text 1)))
-                                               (subed-move-subtitle-backward 
1000)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 3500)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3000)
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal 3500)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 3490)
-                                               (expect (point) :to-equal 
orig-point))))
-      )
-    (it "ignoring start time being larger than stop time."
-      (with-temp-srt-buffer
-                               (insert (concat "1\n"
-                                                                               
                "00:00:01,500 --> 00:00:01,400\n"
-                                                                               
                "Foo.\n\n"
-                                                                               
                "2\n"
-                                                                               
                "00:00:02,500 --> 00:00:02,499\n"
-                                                                               
                "Bar.\n\n"
-                                                                               
                "3\n"
-                                                                               
                "00:00:05,000 --> 00:00:06,000\n"
-                                                                               
                "Bar.\n"))
-                               (setq mark-active t)
-                               (spy-on 'region-beginning :and-return-value 
(subed-jump-to-subtitle-text 1))
-                               (spy-on 'region-end :and-return-value 
(subed-jump-to-subtitle-time-start 2))
-                               (let ((orig-point 
(subed-jump-to-subtitle-time-stop 1)))
-                                       (subed-move-subtitle-forward 1000)
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 2500)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 2400)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-equal 3500)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 3499)
-                                       (expect (subed-subtitle-msecs-start 3) 
:to-equal 5000)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 6000)
-                                       (expect (point) :to-equal orig-point)
-                                       (subed-move-subtitle-backward 500)
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 2000)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 1900)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-equal 3000)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 2999)
-                                       (expect (subed-subtitle-msecs-start 3) 
:to-equal 5000)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 6000)
-                                       (expect (point) :to-equal orig-point))))
-    (it "ignoring stop time being smaller than start time."
-      (with-temp-srt-buffer
-                               (insert (concat "1\n"
-                                                                               
                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                "Foo.\n\n"
-                                                                               
                "2\n"
-                                                                               
                "00:00:04,100 --> 00:00:04,099\n"
-                                                                               
                "Bar.\n\n"
-                                                                               
                "3\n"
-                                                                               
                "00:00:05,500 --> 00:00:05,000\n"
-                                                                               
                "Bar.\n"))
-                               (setq mark-active t)
-                               (spy-on 'region-beginning :and-return-value 
(subed-jump-to-subtitle-text 2))
-                               (spy-on 'region-end :and-return-value 
(subed-jump-to-subtitle-time-start 3))
-                               (let ((orig-point (subed-jump-to-subtitle-text 
1)))
-                                       (subed-move-subtitle-forward 1000)
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 1000)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 2000)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-equal 5100)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 5099)
-                                       (expect (subed-subtitle-msecs-start 3) 
:to-equal 6500)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 6000)
-                                       (expect (point) :to-equal orig-point)
-                                       (subed-move-subtitle-backward 500)
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 1000)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 2000)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-equal 4600)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 4599)
-                                       (expect (subed-subtitle-msecs-start 3) 
:to-equal 6000)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 5500)
-                                       (expect (point) :to-equal orig-point))))
-    (it "disables subtitle replay while moving subtitles."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (subed-enable-replay-adjusted-subtitle :quiet)
-                               (spy-on 'subed-enable-replay-adjusted-subtitle 
:and-call-through)
-                               (spy-on 'subed-disable-replay-adjusted-subtitle 
:and-call-through)
-                               (spy-on 'subed-adjust-subtitle-time-start 
:and-call-fake
-                                                               (lambda (msecs 
&optional a b) (expect (subed-replay-adjusted-subtitle-p) :to-be nil)))
-                               (spy-on 'subed-adjust-subtitle-stop 
:and-call-fake
-                                                               (lambda (msecs 
&optional a b) (expect (subed-replay-adjusted-subtitle-p) :to-be nil)))
-                               (subed-move-subtitle-forward 100)
-                               (expect 'subed-disable-replay-adjusted-subtitle 
:to-have-been-called-times 1)
-                               (expect 'subed-enable-replay-adjusted-subtitle 
:to-have-been-called-times 1)
-                               (subed-move-subtitle-backward 100)
-                               (expect 'subed-disable-replay-adjusted-subtitle 
:to-have-been-called-times 2)
-                               (expect 'subed-enable-replay-adjusted-subtitle 
:to-have-been-called-times 2)))
-    (it "does not enable subtitle replay afterwards if it is disabled."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (subed-disable-replay-adjusted-subtitle :quiet)
-                               (spy-on 'subed-enable-replay-adjusted-subtitle 
:and-call-through)
-                               (spy-on 'subed-disable-replay-adjusted-subtitle 
:and-call-through)
-                               (spy-on 'subed-adjust-subtitle-time-start 
:and-call-fake
-                                                               (lambda (msecs 
&optional a b) (expect (subed-replay-adjusted-subtitle-p) :to-be nil)))
-                               (spy-on 'subed-adjust-subtitle-stop 
:and-call-fake
-                                                               (lambda (msecs 
&optional a b) (expect (subed-replay-adjusted-subtitle-p) :to-be nil)))
-                               (subed-move-subtitle-forward 100)
-                               (expect 'subed-disable-replay-adjusted-subtitle 
:to-have-been-called-times 1)
-                               (expect 'subed-enable-replay-adjusted-subtitle 
:to-have-been-called-times 0)
-                               (subed-move-subtitle-backward 100)
-                               (expect 'subed-disable-replay-adjusted-subtitle 
:to-have-been-called-times 2)
-                               (expect 'subed-enable-replay-adjusted-subtitle 
:to-have-been-called-times 0)))
-    (it "seeks player to current subtitle if region is not active."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (spy-on 'subed-replay-adjusted-subtitle-p 
:and-return-value t)
-                               (spy-on 'subed-mpv-jump)
-                               (subed-move-subtitle-forward 100)
-                               (expect 'subed-mpv-jump 
:to-have-been-called-times 1)
-                               (expect 'subed-mpv-jump 
:to-have-been-called-with 183550)
-                               (subed-move-subtitle-backward 200)
-                               (expect 'subed-mpv-jump 
:to-have-been-called-times 2)
-                               (expect 'subed-mpv-jump 
:to-have-been-called-with 183350)))
-    (it "seeks player to first subtitle in active region."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (let ((beg 15)
-                                                       (end (point-max)))
-                                       (setq mark-active t)
-                                       (spy-on 'region-beginning 
:and-return-value beg)
-                                       (spy-on 'region-end :and-return-value 
end)
-                                       (spy-on 
'subed-replay-adjusted-subtitle-p :and-return-value t)
-                                       (spy-on 'subed-mpv-jump)
-                                       (subed-move-subtitle-forward 100)
-                                       (expect 'subed-mpv-jump 
:to-have-been-called-times 1)
-                                       (expect 'subed-mpv-jump 
:to-have-been-called-with '61100)
-                                       (subed-move-subtitle-backward 300)
-                                       (expect 'subed-mpv-jump 
:to-have-been-called-times 2)
-                                       (expect 'subed-mpv-jump 
:to-have-been-called-with '60800)))))
-
-  (describe "Inserting evenly spaced"
-    (describe "in an empty buffer,"
-      (describe "appending"
-        (it "a single subtile."
-          (cl-loop for arg in (list nil 1) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (expect (subed-insert-subtitle arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:00,000 
--> 00:00:01,000\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtiles."
-          (cl-loop for arg in (list 2) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (expect (subed-insert-subtitle arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:00,000 
--> 00:00:01,000\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:00:01,100 
--> 00:00:02,100\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      (describe "prepending"
-        (it "a single subtile."
-          (cl-loop for arg in (list '- -1 (list 4)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (expect (subed-insert-subtitle arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:00,000 
--> 00:00:01,000\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtiles."
-          (cl-loop for arg in (list -2 (list -16)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (expect (subed-insert-subtitle arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:00,000 
--> 00:00:01,000\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:00:01,100 
--> 00:00:02,100\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      )
-    (describe "in a non-empty buffer"
-      (describe "prepending between subtitles"
-        (it "a single subtitle."
-          (cl-loop for arg in (list '- -1 (list 4)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n\n"
-                                     "2\n"
-                                     "00:02:00,000 --> 00:02:01,000\n"
-                                     "Bar.\n"))
-                     (subed-jump-to-subtitle-text 2)
-                     (expect (subed-insert-subtitle arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:30,000 
--> 00:01:31,000\n"
-                                                               "\n\n"
-                                                               "2\n"
-                                                               "00:02:00,000 
--> 00:02:01,000\n"
-                                                               "Bar.\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtitles."
-          (cl-loop for arg in (list -2 (list 16)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n\n"
-                                     "2\n"
-                                     "00:02:00,000 --> 00:02:01,000\n"
-                                     "Bar.\n"))
-                     (subed-jump-to-subtitle-text 2)
-                     (expect (subed-insert-subtitle arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:20,000 
--> 00:01:21,000\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:01:40,000 
--> 00:01:41,000\n"
-                                                               "\n\n"
-                                                               "2\n"
-                                                               "00:02:00,000 
--> 00:02:01,000\n"
-                                                               "Bar.\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      (describe "appending between subtitles"
-        (it "a single subtitle."
-          (cl-loop for arg in (list nil 1) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n\n"
-                                     "2\n"
-                                     "00:02:00,000 --> 00:02:01,000\n"
-                                     "Bar.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:30,000 
--> 00:01:31,000\n"
-                                                               "\n\n"
-                                                               "2\n"
-                                                               "00:02:00,000 
--> 00:02:01,000\n"
-                                                               "Bar.\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtitles."
-          (cl-loop for arg in (list 2) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n\n"
-                                     "2\n"
-                                     "00:02:00,000 --> 00:02:01,000\n"
-                                     "Bar.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:20,000 
--> 00:01:21,000\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:01:40,000 
--> 00:01:41,000\n"
-                                                               "\n\n"
-                                                               "2\n"
-                                                               "00:02:00,000 
--> 00:02:01,000\n"
-                                                               "Bar.\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      (describe "prepending to the first subtitle"
-        (it "a single subtitle."
-          (cl-loop for arg in (list '- -1 (list 4)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:01:00,000 --> 00:01:01,000\n"
-                                     "Foo.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:30,000 
--> 00:00:31,000\n"
-                                                               "\n\n"
-                                                               "1\n"
-                                                               "00:01:00,000 
--> 00:01:01,000\n"
-                                                               "Foo.\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtitles."
-          (cl-loop for arg in (list -2 (list 16)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:01:00,000 --> 00:01:01,000\n"
-                                     "Foo.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:20,000 
--> 00:00:21,000\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:00:40,000 
--> 00:00:41,000\n"
-                                                               "\n\n"
-                                                               "1\n"
-                                                               "00:01:00,000 
--> 00:01:01,000\n"
-                                                               "Foo.\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      (describe "appending to the last subtitle"
-        (it "a single subtitle."
-          (cl-loop for arg in (list nil 1) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:00,100 
--> 00:01:01,100\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtitles."
-          (cl-loop for arg in (list 2) do
-                   (with-temp-srt-buffer
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n"))
-                     (subed-jump-to-subtitle-text 3)
-                     (expect (subed-insert-subtitle arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:00,100 
--> 00:01:01,100\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:01:01,200 
--> 00:01:02,200\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 71))))
-        )
-      (describe "when there is not enough time for the subtitles"
-        (describe "to append"
-          (it "a single subtitle."
-            (cl-loop for arg in (list nil 1) do
-                     (with-temp-srt-buffer
-                       (spy-on 'subed-regenerate-ids-soon)
-                       (insert (concat "1\n"
-                                       "00:00:59,000 --> 00:01:00,000\n"
-                                       "Foo.\n\n"
-                                       "2\n"
-                                       "00:01:00,600 --> 00:01:02,000\n"
-                                       "Foo.\n"))
-                       (subed-jump-to-subtitle-text 1)
-                       (expect (subed-insert-subtitle arg) :to-equal 71)
-                       (expect (buffer-string) :to-equal (concat "1\n"
-                                                                 "00:00:59,000 
--> 00:01:00,000\n"
-                                                                 "Foo.\n\n"
-                                                                 "0\n"
-                                                                 "00:01:00,100 
--> 00:01:00,500\n"
-                                                                 "\n\n"
-                                                                 "2\n"
-                                                                 "00:01:00,600 
--> 00:01:02,000\n"
-                                                                 "Foo.\n"))
-                       (expect (point) :to-equal 71)
-                       (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                       (spy-calls-reset 'subed-regenerate-ids-soon))))
-          (it "multiple subtitles."
-            (cl-loop for arg in (list 2) do
-                     (with-temp-srt-buffer
-                       (spy-on 'subed-regenerate-ids-soon)
-                       (insert (concat "1\n"
-                                       "00:00:59,000 --> 00:01:00,000\n"
-                                       "Foo.\n\n"
-                                       "2\n"
-                                       "00:01:00,600 --> 00:01:02,000\n"
-                                       "Foo.\n"))
-                       (subed-jump-to-subtitle-text 1)
-                       (expect (subed-insert-subtitle arg) :to-equal 71)
-                       (expect (buffer-string) :to-equal (concat "1\n"
-                                                                 "00:00:59,000 
--> 00:01:00,000\n"
-                                                                 "Foo.\n\n"
-                                                                 "0\n"
-                                                                 "00:01:00,100 
--> 00:01:00,250\n"
-                                                                 "\n\n"
-                                                                 "0\n"
-                                                                 "00:01:00,350 
--> 00:01:00,500\n"
-                                                                 "\n\n"
-                                                                 "2\n"
-                                                                 "00:01:00,600 
--> 00:01:02,000\n"
-                                                                 "Foo.\n"))
-                       (expect (point) :to-equal 71)
-                       (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                       (spy-calls-reset 'subed-regenerate-ids-soon))))
-          )
-        (describe "to prepend"
-          (describe "between subtitles"
-            (it "a single subtitle."
-              (cl-loop for arg in (list '- -1 (list 4)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:57,000 --> 00:00:59,100\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,000 --> 00:01:02,000\n"
-                                         "Foo.\n"))
-                         (subed-jump-to-subtitle-text 2)
-                         (expect (subed-insert-subtitle arg) :to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:57,000 --> 00:00:59,100\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:00:59,200 --> 00:00:59,900\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,000 --> 00:01:02,000\n"
-                                                                   "Foo.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            (it "multiple subtitles."
-              (cl-loop for arg in (list -2 (list 16)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:57,000 --> 00:00:59,100\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,000 --> 00:01:02,000\n"
-                                         "Foo.\n"))
-                         (subed-jump-to-subtitle-text 2)
-                         (expect (subed-insert-subtitle arg) :to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:57,000 --> 00:00:59,100\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:00:59,200 --> 00:00:59,500\n"
-                                                                   "\n\n"
-                                                                   "0\n"
-                                                                   
"00:00:59,600 --> 00:00:59,900\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,000 --> 00:01:02,000\n"
-                                                                   "Foo.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            )
-          (describe "before the first subtitle"
-            (it "a single subtitle."
-              (cl-loop for arg in (list '- -1 (list 4)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:00,500 --> 00:00:02,000\n"
-                                         "Foo.\n"))
-                         (subed-jump-to-subtitle-text 1)
-                         (expect (subed-insert-subtitle arg) :to-equal 33)
-                         (expect (buffer-string) :to-equal (concat "0\n"
-                                                                   
"00:00:00,100 --> 00:00:00,400\n"
-                                                                   "\n\n"
-                                                                   "1\n"
-                                                                   
"00:00:00,500 --> 00:00:02,000\n"
-                                                                   "Foo.\n"))
-                         (expect (point) :to-equal 33)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            (it "multiple subtitles."
-              (cl-loop for arg in (list -2 (list 16)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:00,600 --> 00:00:01,500\n"
-                                         "Foo.\n"))
-                         (subed-jump-to-subtitle-text 1)
-                         (expect (subed-insert-subtitle arg) :to-equal 33)
-                         (expect (buffer-string) :to-equal (concat "0\n"
-                                                                   
"00:00:00,100 --> 00:00:00,250\n"
-                                                                   "\n\n"
-                                                                   "0\n"
-                                                                   
"00:00:00,350 --> 00:00:00,500\n"
-                                                                   "\n\n"
-                                                                   "1\n"
-                                                                   
"00:00:00,600 --> 00:00:01,500\n"
-                                                                   "Foo.\n"))
-                         (expect (point) :to-equal 33)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            )
-          )
-        )
-      (describe "when there is not enough time for spacing"
-        (describe "between subtitles"
-          (describe "when prepending"
-            (it "a single subtitle."
-              (cl-loop for arg in (list '- -1 (list 4)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:55,000 --> 00:00:59,950\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,000 --> 00:01:02,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 2)
-                         (expect (subed-insert-subtitle arg) :to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:55,000 --> 00:00:59,950\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:00:59,950 --> 00:00:59,950\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,000 --> 00:01:02,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            (it "multiple subtitles."
-              (cl-loop for arg in (list -2 (list 16)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:57,000 --> 00:00:59,999\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,000 --> 00:01:02,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 2)
-                         (expect (subed-insert-subtitle arg) :to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:57,000 --> 00:00:59,999\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:00:59,999 --> 00:00:59,999\n"
-                                                                   "\n\n"
-                                                                   "0\n"
-                                                                   
"00:00:59,999 --> 00:00:59,999\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,000 --> 00:01:02,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            )
-          (describe "when appending"
-            (it "a single subtitle."
-              (cl-loop for arg in (list nil 1) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:59,000 --> 00:01:00,000\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,010 --> 00:01:02,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 1)
-                         (expect (subed-insert-subtitle arg) :to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:59,000 --> 00:01:00,000\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,000 --> 00:01:00,000\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,010 --> 00:01:02,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            (it "multiple subtitles."
-              (cl-loop for arg in (list 2) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:59,000 --> 00:01:00,000\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,100 --> 00:01:02,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 1)
-                         (expect (subed-insert-subtitle arg) :to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:59,000 --> 00:01:00,000\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,000 --> 00:01:00,000\n"
-                                                                   "\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,000 --> 00:01:00,000\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,100 --> 00:01:02,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            )
-          )
-        (describe "before the first subtitle"
-          (it "a single subtitle."
-            (cl-loop for arg in (list '- -1 (list 4)) do
-                     (with-temp-srt-buffer
-                       (spy-on 'subed-regenerate-ids-soon)
-                       (insert (concat "1\n"
-                                       "00:00:00,050 --> 00:00:02,000\n"
-                                       "Foo.\n"))
-                       (subed-jump-to-subtitle-text 1)
-                       (expect (subed-insert-subtitle arg) :to-equal 33)
-                       (expect (buffer-string) :to-equal (concat "0\n"
-                                                                 "00:00:00,000 
--> 00:00:00,000\n"
-                                                                 "\n\n"
-                                                                 "1\n"
-                                                                 "00:00:00,050 
--> 00:00:02,000\n"
-                                                                 "Foo.\n"))
-                       (expect (point) :to-equal 33)
-                       (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                       (spy-calls-reset 'subed-regenerate-ids-soon))))
-          (it "multiple subtitles."
-            (cl-loop for arg in (list -2 (list 16)) do
-                     (with-temp-srt-buffer
-                       (spy-on 'subed-regenerate-ids-soon)
-                       (insert (concat "1\n"
-                                       "00:00:00,100 --> 00:00:01,500\n"
-                                       "Foo.\n"))
-                       (subed-jump-to-subtitle-text 1)
-                       (expect (subed-insert-subtitle arg) :to-equal 33)
-                       (expect (buffer-string) :to-equal (concat "0\n"
-                                                                 "00:00:00,000 
--> 00:00:00,000\n"
-                                                                 "\n\n"
-                                                                 "0\n"
-                                                                 "00:00:00,000 
--> 00:00:00,000\n"
-                                                                 "\n\n"
-                                                                 "1\n"
-                                                                 "00:00:00,100 
--> 00:00:01,500\n"
-                                                                 "Foo.\n"))
-                       (expect (point) :to-equal 33)
-                       (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                       (spy-calls-reset 'subed-regenerate-ids-soon))))
-          )
-        )
-      )
-    )
-
-  (describe "Inserting adjacent"
-    (describe "in an empty buffer,"
-      (describe "appending"
-        (it "a single subtile."
-          (cl-loop for arg in (list nil 1) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:00,000 
--> 00:00:01,000\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtiles."
-          (cl-loop for arg in (list 2) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:00,000 
--> 00:00:01,000\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:00:01,100 
--> 00:00:02,100\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      (describe "prepending"
-        (it "a single subtile."
-          (cl-loop for arg in (list '- -1 (list 4)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:00,000 
--> 00:00:01,000\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtiles."
-          (cl-loop for arg in (list -2 (list -16)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:00,000 
--> 00:00:01,000\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:00:01,100 
--> 00:00:02,100\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      )
-    (describe "in a non-empty buffer"
-      (describe "prepending between subtitles"
-        (it "a single subtitle."
-          (cl-loop for arg in (list '- -1 (list 4)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n\n"
-                                     "2\n"
-                                     "00:02:00,000 --> 00:02:01,000\n"
-                                     "Bar.\n"))
-                     (subed-jump-to-subtitle-text 2)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:58,900 
--> 00:01:59,900\n"
-                                                               "\n\n"
-                                                               "2\n"
-                                                               "00:02:00,000 
--> 00:02:01,000\n"
-                                                               "Bar.\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtitles."
-          (cl-loop for arg in (list -2 (list 16)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n\n"
-                                     "2\n"
-                                     "00:02:00,000 --> 00:02:01,000\n"
-                                     "Bar.\n"))
-                     (subed-jump-to-subtitle-text 2)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:57,800 
--> 00:01:58,800\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:01:58,900 
--> 00:01:59,900\n"
-                                                               "\n\n"
-                                                               "2\n"
-                                                               "00:02:00,000 
--> 00:02:01,000\n"
-                                                               "Bar.\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      (describe "appending between subtitles"
-        (it "a single subtitle."
-          (cl-loop for arg in (list nil 1) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n\n"
-                                     "2\n"
-                                     "00:02:00,000 --> 00:02:01,000\n"
-                                     "Bar.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:00,100 
--> 00:01:01,100\n"
-                                                               "\n\n"
-                                                               "2\n"
-                                                               "00:02:00,000 
--> 00:02:01,000\n"
-                                                               "Bar.\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtitles."
-          (cl-loop for arg in (list 2) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n\n"
-                                     "2\n"
-                                     "00:02:00,000 --> 00:02:01,000\n"
-                                     "Bar.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:00,100 
--> 00:01:01,100\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:01:01,200 
--> 00:01:02,200\n"
-                                                               "\n\n"
-                                                               "2\n"
-                                                               "00:02:00,000 
--> 00:02:01,000\n"
-                                                               "Bar.\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      (describe "prepending to the first subtitle"
-        (it "a single subtitle."
-          (cl-loop for arg in (list '- -1 (list 4)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:01:00,000 --> 00:01:01,000\n"
-                                     "Foo.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:58,900 
--> 00:00:59,900\n"
-                                                               "\n\n"
-                                                               "1\n"
-                                                               "00:01:00,000 
--> 00:01:01,000\n"
-                                                               "Foo.\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtitles."
-          (cl-loop for arg in (list -2 (list 16)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:01:00,000 --> 00:01:01,000\n"
-                                     "Foo.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:57,800 
--> 00:00:58,800\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:00:58,900 
--> 00:00:59,900\n"
-                                                               "\n\n"
-                                                               "1\n"
-                                                               "00:01:00,000 
--> 00:01:01,000\n"
-                                                               "Foo.\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      (describe "appending to the last subtitle"
-        (it "a single subtitle."
-          (cl-loop for arg in (list nil 1) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:00,100 
--> 00:01:01,100\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtitles."
-          (cl-loop for arg in (list 2) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n"))
-                     (subed-jump-to-subtitle-text 3)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:00,100 
--> 00:01:01,100\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:01:01,200 
--> 00:01:02,200\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      (describe "when there is not enough time for the subtitles"
-        (describe "to append"
-          (it "a single subtitle."
-            (cl-loop for arg in (list nil 1) do
-                     (with-temp-srt-buffer
-                       (spy-on 'subed-regenerate-ids-soon)
-                       (insert (concat "1\n"
-                                       "00:00:59,000 --> 00:01:00,000\n"
-                                       "Foo.\n\n"
-                                       "2\n"
-                                       "00:01:00,500 --> 00:01:05,000\n"
-                                       "Bar.\n"))
-                       (subed-jump-to-subtitle-text 1)
-                       (expect (subed-insert-subtitle-adjacent arg) :to-equal 
71)
-                       (expect (buffer-string) :to-equal (concat "1\n"
-                                                                 "00:00:59,000 
--> 00:01:00,000\n"
-                                                                 "Foo.\n\n"
-                                                                 "0\n"
-                                                                 "00:01:00,100 
--> 00:01:00,400\n"
-                                                                 "\n\n"
-                                                                 "2\n"
-                                                                 "00:01:00,500 
--> 00:01:05,000\n"
-                                                                 "Bar.\n"))
-                       (expect (point) :to-equal 71)
-                       (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                       (spy-calls-reset 'subed-regenerate-ids-soon))))
-          (it "multiple subtitles."
-            (cl-loop for arg in (list 2) do
-                     (with-temp-srt-buffer
-                       (spy-on 'subed-regenerate-ids-soon)
-                       (insert (concat "1\n"
-                                       "00:00:59,000 --> 00:01:00,000\n"
-                                       "Foo.\n\n"
-                                       "2\n"
-                                       "00:01:00,500 --> 00:01:05,000\n"
-                                       "Bar.\n"))
-                       (subed-jump-to-subtitle-text 1)
-                       (expect (subed-insert-subtitle-adjacent arg) :to-equal 
71)
-                       (expect (buffer-string) :to-equal (concat "1\n"
-                                                                 "00:00:59,000 
--> 00:01:00,000\n"
-                                                                 "Foo.\n\n"
-                                                                 "0\n"
-                                                                 "00:01:00,100 
--> 00:01:00,200\n"
-                                                                 "\n\n"
-                                                                 "0\n"
-                                                                 "00:01:00,300 
--> 00:01:00,400\n"
-                                                                 "\n\n"
-                                                                 "2\n"
-                                                                 "00:01:00,500 
--> 00:01:05,000\n"
-                                                                 "Bar.\n"))
-                       (expect (point) :to-equal 71)
-                       (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                       (spy-calls-reset 'subed-regenerate-ids-soon))))
-          )
-        (describe "to prepend"
-          (describe "between subtitles"
-            (it "a single subtitle."
-              (cl-loop for arg in (list '- -1 (list 4)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:59,000 --> 00:01:00,000\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,700 --> 00:01:05,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 2)
-                         (expect (subed-insert-subtitle-adjacent arg) 
:to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:59,000 --> 00:01:00,000\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,100 --> 00:01:00,600\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,700 --> 00:01:05,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            (it "multiple subtitles."
-              (cl-loop for arg in (list -2 (list 16)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:59,000 --> 00:01:00,000\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,500 --> 00:01:05,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 2)
-                         (expect (subed-insert-subtitle-adjacent arg) 
:to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:59,000 --> 00:01:00,000\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,100 --> 00:01:00,200\n"
-                                                                   "\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,300 --> 00:01:00,400\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,500 --> 00:01:05,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            )
-          (describe "before the first subtitle"
-            (it "a single subtitle."
-              (cl-loop for arg in (list '- -1 (list 4)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:01,000 --> 00:00:02,000\n"
-                                         "Foo.\n"))
-                         (subed-jump-to-subtitle-text 1)
-                         (expect (subed-insert-subtitle-adjacent arg) 
:to-equal 33)
-                         (expect (buffer-string) :to-equal (concat "0\n"
-                                                                   
"00:00:00,100 --> 00:00:00,900\n"
-                                                                   "\n\n"
-                                                                   "1\n"
-                                                                   
"00:00:01,000 --> 00:00:02,000\n"
-                                                                   "Foo.\n"))
-                         (expect (point) :to-equal 33)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            (it "multiple subtitles."
-              (cl-loop for arg in (list -2 (list 16)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:00,800 --> 00:00:03,000\n"
-                                         "Foo.\n"))
-                         (subed-jump-to-subtitle-text 2)
-                         (expect (subed-insert-subtitle-adjacent arg) 
:to-equal 33)
-                         (expect (buffer-string) :to-equal (concat "0\n"
-                                                                   
"00:00:00,100 --> 00:00:00,350\n"
-                                                                   "\n\n"
-                                                                   "0\n"
-                                                                   
"00:00:00,450 --> 00:00:00,700\n"
-                                                                   "\n\n"
-                                                                   "1\n"
-                                                                   
"00:00:00,800 --> 00:00:03,000\n"
-                                                                   "Foo.\n"))
-                         (expect (point) :to-equal 33)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            )
-          )
-        )
-      (describe "when there is not enough time for spacing"
-        (describe "between subtitles"
-          (describe "when prepending"
-            (it "a single subtitle."
-              (cl-loop for arg in (list '- -1 (list 4)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:59,000 --> 00:01:00,000\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,005 --> 00:01:05,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 2)
-                         (expect (subed-insert-subtitle-adjacent arg) 
:to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:59,000 --> 00:01:00,000\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,005 --> 00:01:00,005\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,005 --> 00:01:05,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            (it "multiple subtitles."
-              (cl-loop for arg in (list -2 (list 16)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:59,000 --> 00:01:00,000\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,025 --> 00:01:05,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 2)
-                         (expect (subed-insert-subtitle-adjacent arg) 
:to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:59,000 --> 00:01:00,000\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,025 --> 00:01:00,025\n"
-                                                                   "\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,025 --> 00:01:00,025\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,025 --> 00:01:05,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            )
-          (describe "when appending"
-            (it "a single subtitle."
-              (cl-loop for arg in (list nil 1) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:59,000 --> 00:01:00,000\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,099 --> 00:01:05,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 1)
-                         (expect (subed-insert-subtitle-adjacent arg) 
:to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:59,000 --> 00:01:00,000\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,000 --> 00:01:00,000\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,099 --> 00:01:05,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            (it "multiple subtitles."
-              (cl-loop for arg in (list 2) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:59,000 --> 00:01:00,000\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,075 --> 00:01:05,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 1)
-                         (expect (subed-insert-subtitle-adjacent arg) 
:to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:59,000 --> 00:01:00,000\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,000 --> 00:01:00,000\n"
-                                                                   "\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,000 --> 00:01:00,000\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,075 --> 00:01:05,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            )
-          )
-        (describe "before the first subtitle"
-          (it "a single subtitle."
-            (cl-loop for arg in (list '- -1 (list 4)) do
-                     (with-temp-srt-buffer
-                       (spy-on 'subed-regenerate-ids-soon)
-                       (insert (concat "1\n"
-                                       "00:00:00,040 --> 00:00:05,000\n"
-                                       "Foo.\n"))
-                       (subed-jump-to-subtitle-text 1)
-                       (expect (subed-insert-subtitle-adjacent arg) :to-equal 
33)
-                       (expect (buffer-string) :to-equal (concat "0\n"
-                                                                 "00:00:00,040 
--> 00:00:00,040\n"
-                                                                 "\n\n"
-                                                                 "1\n"
-                                                                 "00:00:00,040 
--> 00:00:05,000\n"
-                                                                 "Foo.\n"))
-                       (expect (point) :to-equal 33)
-                       (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                       (spy-calls-reset 'subed-regenerate-ids-soon))))
-          (it "multiple subtitles."
-            (cl-loop for arg in (list -2 (list 16)) do
-                     (with-temp-srt-buffer
-                       (spy-on 'subed-regenerate-ids-soon)
-                       (insert (concat "1\n"
-                                       "00:00:00,024 --> 00:00:05,000\n"
-                                       "Foo.\n"))
-                       (subed-jump-to-subtitle-text 1)
-                       (expect (subed-insert-subtitle-adjacent arg) :to-equal 
33)
-                       (expect (buffer-string) :to-equal (concat "0\n"
-                                                                 "00:00:00,024 
--> 00:00:00,024\n"
-                                                                 "\n\n"
-                                                                 "0\n"
-                                                                 "00:00:00,024 
--> 00:00:00,024\n"
-                                                                 "\n\n"
-                                                                 "1\n"
-                                                                 "00:00:00,024 
--> 00:00:05,000\n"
-                                                                 "Foo.\n"))
-                       (expect (point) :to-equal 33)
-                       (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                       (spy-calls-reset 'subed-regenerate-ids-soon))))
-          )
-        )
-      )
-    )
-
-  (describe "Syncing player to point"
-    :var (subed-mpv-playback-position)
-    (before-each
-      (setq subed-mpv-playback-position 0)
-      (spy-on 'subed-subtitle-msecs-start :and-return-value 5000)
-      (spy-on 'subed-subtitle-msecs-stop :and-return-value 6500)
-      (spy-on 'subed-mpv-jump))
-    (it "does not seek player if point is on current subtitle."
-      (setq subed-mpv-playback-position 5000)
-      (subed--sync-player-to-point)
-      (expect 'subed-mpv-jump :not :to-have-been-called)
-      (setq subed-mpv-playback-position 6500)
-      (subed--sync-player-to-point)
-      (expect 'subed-mpv-jump :not :to-have-been-called))
-    (it "seeks player if point is on future subtitle."
-      (with-temp-buffer
-        (subed-srt-mode)
-        (setq subed-mpv-playback-position 6501)
-        (subed--sync-player-to-point)
-        (expect 'subed-mpv-jump :to-have-been-called-with 5000)))
-    (it "seeks player if point is on past subtitle."
-      (with-temp-buffer
-        (subed-srt-mode)
-        (setq subed-mpv-playback-position 4999)
-        (subed--sync-player-to-point)
-        (expect 'subed-mpv-jump :to-have-been-called-with 5000)))
-    )
-
-  (describe "Temporarily disabling point-to-player syncing"
-    (before-each
-      (spy-on 'subed-disable-sync-point-to-player)
-                       (spy-on 'timerp :and-return-value t))
-    (describe "when point-to-player syncing is disabled"
-      (before-each
-        (setq subed--point-sync-delay-after-motion-timer nil)
-                               (spy-on 'subed-sync-point-to-player-p 
:and-return-value nil)
-        (spy-on 'run-at-time))
-      (it "does not disable point-to-player syncing."
-        (subed-disable-sync-point-to-player-temporarily)
-        (expect 'subed-disable-sync-point-to-player :not :to-have-been-called))
-      (it "does not schedule re-enabling of point-to-player syncing."
-        (subed-disable-sync-point-to-player-temporarily)
-        (expect 'run-at-time :not :to-have-been-called)
-        (expect subed--point-sync-delay-after-motion-timer :to-be nil))
-      )
-    (describe "when point-to-player syncing is enabled"
-      :var (subed--point-sync-delay-after-motion-timer)
-      (before-each
-        (spy-on 'subed-sync-point-to-player-p :and-return-value t)
-        (spy-on 'run-at-time :and-return-value "mock timer")
-        (spy-on 'cancel-timer)
-        (setq subed--point-sync-delay-after-motion-timer nil))
-      (it "disables point-to-player syncing."
-        (subed-disable-sync-point-to-player-temporarily)
-        (expect 'subed-disable-sync-point-to-player :to-have-been-called))
-      (it "schedules re-enabling of point-to-player syncing."
-        (subed-disable-sync-point-to-player-temporarily)
-        (expect 'run-at-time :to-have-been-called)
-        ;; Does not play well with undercover and edebug
-        ;; (expect 'run-at-time :to-have-been-called-with
-        ;;         subed-point-sync-delay-after-motion nil
-        ;;         '(closure (t) nil
-        ;;                   (setq subed--point-sync-delay-after-motion-timer 
nil)
-        ;;                   (subed-enable-sync-point-to-player :quiet)))
-        )
-      (it "cancels previously scheduled re-enabling of point-to-player 
syncing."
-        (subed-disable-sync-point-to-player-temporarily)
-        (expect 'cancel-timer :not :to-have-been-called-with "mock timer")
-        (subed-disable-sync-point-to-player-temporarily)
-        (expect 'cancel-timer :to-have-been-called-with "mock timer")
-        (expect 'cancel-timer :to-have-been-called-times 1))
-      )
-    )
-
-  (describe "Splitting subtitles"
-    (it "handles empty subtitles"
-      (with-temp-srt-buffer
-                               (insert "1
-00:01:23,000 --> 00:02:34,567
-
-")
-                               (forward-line -1)
-                               (let ((subed-subtitle-spacing 100))
-                                       (subed-split-subtitle 100))
-                               (expect (buffer-string) :to-equal
-                                                               "1
-00:01:23,000 --> 00:01:23,100
-
-
-0
-00:01:23,200 --> 00:02:34,567
-
-")))
-    (describe "when there are multiple lines"
-      (describe "at the last subtitle"
-        :var ((text "1
-00:01:23,000 --> 00:02:34,567
-This is a subtitle
-that has two lines.
-
-")
-              (subed-subtitle-spacing 100))
-        (it "properly splits text when called at the beginning of the 
subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (re-search-backward "This is a 
subtitle")
-                                               (goto-char (match-beginning 0))
-                                               (save-excursion 
(subed-split-subtitle 100))
-                                               (expect (buffer-string) 
:to-equal "1
-00:01:23,000 --> 00:01:23,100
-
-
-0
-00:01:23,200 --> 00:02:34,567
-This is a subtitle
-that has two lines.
-")))
-        (it "properly splits text when called in the middle of the subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (re-search-backward "This is a")
-                                               (goto-char (match-end 0))
-                                               (subed-split-subtitle 100)
-                                               (expect (subed-subtitle-text 1) 
:to-equal "This is a")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal "subtitle\nthat has two lines.")))
-        (it "properly splits text when called at the end of a line in the 
middle of the subtitle"
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (re-search-backward "This is a 
subtitle")
-                                               (goto-char (match-end 0))
-                                               (subed-split-subtitle 100)
-                                               (expect (subed-subtitle-text 1) 
:to-equal "This is a subtitle")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal "that has two lines.")))
-        (it "properly splits text when called at the beginning of a line in 
the middle of the subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (re-search-backward "that has 
two lines")
-                                               (goto-char (match-beginning 0))
-                                               (subed-split-subtitle 100)
-                                               (expect (buffer-string) 
:to-equal "1
-00:01:23,000 --> 00:01:23,100
-This is a subtitle
-
-0
-00:01:23,200 --> 00:02:34,567
-that has two lines.
-")  (expect (subed-subtitle-text 1) :to-equal "This is a subtitle")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal "that has two lines.")))
-        (it "properly splits text when called at the end of the subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (subed-jump-to-subtitle-end 1)
-                                               (subed-split-subtitle 100)
-                                               (expect (subed-subtitle-text 1) 
:to-equal "This is a subtitle\nthat has two lines.")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal "")))
-        (it "properly splits text when called before whitespace at the end of 
the subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (subed-jump-to-subtitle-end 1)
-                                               (save-excursion (insert "  "))
-                                               (subed-split-subtitle 100)
-                                               (expect (subed-subtitle-text 1) 
:to-equal "This is a subtitle\nthat has two lines.")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal ""))))
-      (describe "with another subtitle after it"
-        :var ((text "1
-00:01:23,000 --> 00:02:34,567
-This is a subtitle
-that has two lines.
-
-2
-00:05:00,000 --> 00:06:00,000
-This is another.
-"))
-        (it "properly splits text when called at the beginning of the 
subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (re-search-backward "This is a 
subtitle")
-                                               (goto-char (match-beginning 0))
-                                               (let ((subed-subtitle-spacing 
100))
-                                                       (save-excursion 
(subed-split-subtitle 100))
-                                                       (expect 
subed-subtitle-spacing :to-equal 100))
-                                               (expect (buffer-string) 
:to-equal "1
-00:01:23,000 --> 00:01:23,100
-
-0
-00:01:23,200 --> 00:02:34,567
-This is a subtitle
-that has two lines.
-
-2
-00:05:00,000 --> 00:06:00,000
-This is another.
-")))
-        (it "properly splits text when called in the middle of the subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (re-search-backward "This is a 
subtitle")
-                                               (goto-char (match-end 0))
-                                               (backward-word 1)
-                                               (subed-split-subtitle 100)
-                                               (expect (subed-subtitle-text 1) 
:to-equal "This is a")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal "subtitle\nthat has two lines.")))
-        (it "properly splits text when called at the end of a line in the 
middle of the subtitle"
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (re-search-backward "This is a 
subtitle")
-                                               (goto-char (match-end 0))
-                                               (subed-split-subtitle 100)
-                                               (expect (subed-subtitle-text 1) 
:to-equal "This is a subtitle")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal "that has two lines.")))
-        (it "properly splits text when called at the beginning of a line in 
the middle of the subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (re-search-backward "that has 
two lines")
-                                               (goto-char (match-beginning 0))
-                                               (let 
((subed-enforce-time-boundaries 'adjust)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       (subed-split-subtitle 
100))
-                                               (expect (buffer-string) 
:to-equal "1
-00:01:23,000 --> 00:01:23,100
-This is a subtitle
-
-0
-00:01:23,200 --> 00:02:34,567
-that has two lines.
-
-2
-00:05:00,000 --> 00:06:00,000
-This is another.
-")  (expect (subed-subtitle-text 1) :to-equal "This is a subtitle")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal "that has two lines.")))
-        (it "properly splits text when called at the end of the subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (subed-jump-to-subtitle-end 1)
-                                               (subed-split-subtitle 100)
-                                               (expect (subed-subtitle-text 1) 
:to-equal "This is a subtitle\nthat has two lines.")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal "")))
-        (it "properly splits text when called before whitespace at the end of 
the subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (subed-jump-to-subtitle-end 1)
-                                               (save-excursion (insert "  "))
-                                               (subed-split-subtitle 100)
-                                               (expect (subed-subtitle-text 1) 
:to-equal "This is a subtitle\nthat has two lines.")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal "")))
-        (it "accepts a timestamp."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (re-search-backward "subtitle")
-                                               (end-of-line)
-                                               (subed-split-subtitle 
"00:01:43,100")
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal 103100)
-                                               
(subed-backward-subtitle-time-start)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal (- 103100 subed-subtitle-spacing))))))
-    (describe "when playing the media in MPV"
-      (it "splits at point in the middle of the subtitle."
-        (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (re-search-backward "Foo\\.")
-                                       (end-of-line)
-                                       (save-excursion (insert " Some text 
here."))
-                                       (setq-local subed-mpv-playback-position 
61600)
-                                       (setq-local subed-subtitle-spacing 100)
-                                       (subed-split-subtitle)
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 61700)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 65123)
-                                       (expect (subed-subtitle-text) :to-equal 
"Some text here.")
-                                       (subed-backward-subtitle-time-start)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 61600)
-                                       (expect (subed-subtitle-text) :to-equal 
"Foo.")))
-      (it "splits at the end even if there are spaces."
-        (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (re-search-backward "Foo\\.")
-                                       (subed-jump-to-subtitle-end)
-                                       (insert " ")
-                                       (setq-local subed-mpv-playback-position 
61600)
-                                       (setq-local subed-subtitle-spacing 100)
-                                       (subed-split-subtitle)
-                                       (expect (subed-subtitle-text) :to-equal 
"")
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 61700)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 65123)
-                                       (subed-backward-subtitle-time-start)
-                                       (expect (subed-subtitle-text) :to-equal 
"Foo.")
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 61600)))
-      (it "splits at the beginning."
-        (with-temp-srt-buffer
-                                       (save-excursion (insert mock-srt-data))
-                                       (subed-jump-to-subtitle-text)
-                                       (setq-local subed-mpv-playback-position 
61600)
-                                       (setq-local subed-subtitle-spacing 100)
-                                       (subed-split-subtitle)
-                                       (expect (subed-subtitle-text) :to-equal 
"Foo.")
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 61700)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 65123)
-                                       (subed-backward-subtitle-time-start)
-                                       (expect (subed-subtitle-text) :to-equal 
"")
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 61600))))
-    (describe "when a positive offset is specified"
-      (it "splits from the starting time."
-        (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (re-search-backward "Foo\\.")
-                                       (end-of-line)
-                                       (save-excursion (insert " Some text 
here."))
-                                       (setq-local subed-subtitle-spacing 100)
-                                       (subed-split-subtitle 300)
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 61400)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 65123)
-                                       (expect (subed-subtitle-text) :to-equal 
"Some text here.")
-                                       (subed-backward-subtitle-time-start)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 61300)
-                                       (expect (subed-subtitle-text) :to-equal 
"Foo.")))
-      (it "uses the offset instead of the playing position."
-        (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (re-search-backward "Foo\\.")
-                                       (setq-local subed-mpv-playback-position 
61600)
-                                       (setq-local subed-subtitle-spacing 100)
-                                       (subed-split-subtitle 300)
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 61400)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 65123))))
-    (describe "when a negative offset is specified"
-      (it "splits from the ending time."
-        (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (re-search-backward "Foo\\.")
-                                       (end-of-line)
-                                       (save-excursion (insert " Some text 
here."))
-                                       (setq-local subed-subtitle-spacing 100)
-                                       (subed-split-subtitle -300)
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 64923)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 65123)
-                                       (expect (subed-subtitle-text) :to-equal 
"Some text here.")
-                                       (subed-backward-subtitle-time-start)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 64823)
-                                       (expect (subed-subtitle-text) :to-equal 
"Foo.")))
-      (it "uses the offset instead of the playing position."
-        (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (re-search-backward "Foo\\.")
-                                       (setq-local subed-subtitle-spacing 100)
-                                       (setq-local subed-mpv-playback-position 
61600)
-                                       (subed-split-subtitle -300)
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 64923)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 65123)
-                                       (subed-backward-subtitle-time-start)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 64823))))
-    (describe "when nothing is specified"
-      (it "splits proportional to the location."
-        (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (re-search-backward "Foo\\.")
-                                       (end-of-line)
-                                       (save-excursion (insert " Bar"))
-                                       (setq-local subed-subtitle-spacing 100)
-                                       (subed-split-subtitle)
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 63161)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 65123)
-                                       (expect (subed-subtitle-text) :to-equal 
"Bar")
-                                       (subed-backward-subtitle-time-start)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 63061)
-                                       (expect (subed-subtitle-text) :to-equal 
"Foo.")))))
-
-  (describe "Scaling subtitles"
-    (it "without providing beginning and end."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (spy-on 'subed-scale-subtitles 
:and-call-through)
-                               (subed-scale-subtitles-forward 1000)
-                               (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                               (expect (subed-subtitle-msecs-stop 1) :to-equal 
65123)
-                               (expect (subed-subtitle-msecs-start 2) 
:to-equal 122734)
-                               (expect (subed-subtitle-msecs-stop 2) :to-equal 
130845)
-                               (expect (subed-subtitle-msecs-start 3) 
:to-equal 184450)
-                               (expect (subed-subtitle-msecs-stop 3) :to-equal 
196500)
-                               (subed-scale-subtitles-backward 1000)
-                               (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                               (expect (subed-subtitle-msecs-stop 1) :to-equal 
65123)
-                               (expect (subed-subtitle-msecs-start 2) 
:to-equal 122234)
-                               (expect (subed-subtitle-msecs-stop 2) :to-equal 
130345)
-                               (expect (subed-subtitle-msecs-start 3) 
:to-equal 183450)
-                               (expect (subed-subtitle-msecs-stop 3) :to-equal 
195500)
-                               (expect (spy-calls-all-args 
'subed-scale-subtitles) :to-equal
-                                                               '((+1000 nil 
nil)
-                                                                       (-1000 
nil nil)))))
-    (it "without providing end."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (subed-scale-subtitles 1000 (point-min) nil)
-                               (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                               (expect (subed-subtitle-msecs-stop 1) :to-equal 
65123)
-                               (expect (subed-subtitle-msecs-start 2) 
:to-equal 122734)
-                               (expect (subed-subtitle-msecs-stop 2) :to-equal 
130845)
-                               (expect (subed-subtitle-msecs-start 3) 
:to-equal 184450)
-                               (expect (subed-subtitle-msecs-stop 3) :to-equal 
196500)
-                               (subed-scale-subtitles -1000 (point-min) nil)
-                               (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                               (expect (subed-subtitle-msecs-stop 1) :to-equal 
65123)
-                               (expect (subed-subtitle-msecs-start 2) 
:to-equal 122234)
-                               (expect (subed-subtitle-msecs-stop 2) :to-equal 
130345)
-                               (expect (subed-subtitle-msecs-start 3) 
:to-equal 183450)
-                               (expect (subed-subtitle-msecs-stop 3) :to-equal 
195500)))
-    (it "without providing beginning."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (subed-scale-subtitles 1000 nil (point-max))
-                               (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                               (expect (subed-subtitle-msecs-stop 1) :to-equal 
65123)
-                               (expect (subed-subtitle-msecs-start 2) 
:to-equal 122734)
-                               (expect (subed-subtitle-msecs-stop 2) :to-equal 
130845)
-                               (expect (subed-subtitle-msecs-start 3) 
:to-equal 184450)
-                               (expect (subed-subtitle-msecs-stop 3) :to-equal 
196500)
-                               (subed-scale-subtitles -1000 nil (point-max))
-                               (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                               (expect (subed-subtitle-msecs-stop 1) :to-equal 
65123)
-                               (expect (subed-subtitle-msecs-start 2) 
:to-equal 122234)
-                               (expect (subed-subtitle-msecs-stop 2) :to-equal 
130345)
-                               (expect (subed-subtitle-msecs-start 3) 
:to-equal 183450)
-                               (expect (subed-subtitle-msecs-stop 3) :to-equal 
195500)))
-    (it "with active region on entire buffer."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (let ((beg (point-min))
-                                                       (end (point-max)))
-                                       (spy-on 'subed-scale-subtitles 
:and-call-through)
-                                       (spy-on 'region-beginning 
:and-return-value beg)
-                                       (spy-on 'region-end :and-return-value 
end)
-                                       (setq mark-active t)
-                                       (subed-scale-subtitles-forward 1000)
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 65123)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-equal 122734)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 130845)
-                                       (expect (subed-subtitle-msecs-start 3) 
:to-equal 184450)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 196500)
-                                       (subed-scale-subtitles-backward 1000)
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 65123)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-equal 122234)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 130345)
-                                       (expect (subed-subtitle-msecs-start 3) 
:to-equal 183450)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 195500)
-                                       (expect (spy-calls-all-args 
'subed-scale-subtitles) :to-equal
-                                                                       
`((+1000 ,beg ,end)
-                                                                               
(-1000 ,beg ,end))))))
-    (it "with a zero msec extension/contraction."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (subed-scale-subtitles-forward 0)
-                               (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                               (expect (subed-subtitle-msecs-stop 1) :to-equal 
65123)
-                               (expect (subed-subtitle-msecs-start 2) 
:to-equal 122234)
-                               (expect (subed-subtitle-msecs-stop 2) :to-equal 
130345)
-                               (expect (subed-subtitle-msecs-start 3) 
:to-equal 183450)
-                               (expect (subed-subtitle-msecs-stop 3) :to-equal 
195500)
-                               (subed-scale-subtitles-backward 0)
-                               (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                               (expect (subed-subtitle-msecs-stop 1) :to-equal 
65123)
-                               (expect (subed-subtitle-msecs-start 2) 
:to-equal 122234)
-                               (expect (subed-subtitle-msecs-stop 2) :to-equal 
130345)
-                               (expect (subed-subtitle-msecs-start 3) 
:to-equal 183450)
-                               (expect (subed-subtitle-msecs-stop 3) :to-equal 
195500)))
-    (it "with active region on one subtitle."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (let ((beg 77)                                  
                         ; point at ID of third subtitle
-                                                       (end (point-max)))
-                                       (spy-on 'region-beginning 
:and-return-value beg)
-                                       (spy-on 'region-end :and-return-value 
end)
-                                       (spy-on 'user-error :and-call-through)
-                                       (setq mark-active t)
-                                       (expect (subed-scale-subtitles-forward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale with fewer than 3 subtitles")))
-                                       (expect (buffer-string) :to-equal 
mock-srt-data))))
-    (it "with active region on two subtitles."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (let ((beg 39)                                  
                        ; point at ID of second subtitle
-                                                       (end (point-max)))
-                                       (spy-on 'region-beginning 
:and-return-value beg)
-                                       (spy-on 'region-end :and-return-value 
end)
-                                       (spy-on 'user-error :and-call-through)
-                                       (setq mark-active t)
-                                       (expect (subed-scale-subtitles-forward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale with only 2 subtitles")))
-                                       (expect (buffer-string) :to-equal 
mock-srt-data))))
-    (it "with active region contraction."
-      (with-temp-srt-buffer
-                               (insert (concat "1\n"
-                                                                               
                "00:00:43,233 --> 00:00:45,861\n"
-                                                                               
                "a\n"
-                                                                               
                "\n"
-                                                                               
                "2\n"
-                                                                               
                "00:00:51,675 --> 00:00:54,542\n"
-                                                                               
                "b\n"
-                                                                               
                "\n"
-                                                                               
                "3\n"
-                                                                               
                "00:01:00,717 --> 00:01:02,378\n"
-                                                                               
                "c\n"
-                                                                               
                "\n"
-                                                                               
                "4\n"
-                                                                               
                "00:01:02,452 --> 00:01:05,216\n"
-                                                                               
                "d\n"))
-                               (let ((beg (point-min))
-                                                       (end 103))              
                                 ; point at TEXT of third subtitle
-                                       (spy-on 'region-beginning 
:and-return-value beg)
-                                       (spy-on 'region-end :and-return-value 
end)
-                                       (setq mark-active t)
-                                       (subed-scale-subtitles-backward 1000)
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 43233)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 45861)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-equal 51192)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 54059)
-                                       (expect (subed-subtitle-msecs-start 3) 
:to-equal 59717)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 61378)
-                                       (expect (subed-subtitle-msecs-start 4) 
:to-equal 62452)
-                                       (expect (subed-subtitle-msecs-stop 4) 
:to-equal 65216))))
-    (it "with active region extension."
-      (with-temp-srt-buffer
-                               (insert (concat "1\n"
-                                                                               
                "00:00:43,233 --> 00:00:45,861\n"
-                                                                               
                "a\n"
-                                                                               
                "\n"
-                                                                               
                "2\n"
-                                                                               
                "00:00:51,192 --> 00:00:54,059\n"
-                                                                               
                "b\n"
-                                                                               
                "\n"
-                                                                               
                "3\n"
-                                                                               
                "00:00:59,717 --> 00:01:01,378\n"
-                                                                               
                "c\n"
-                                                                               
                "\n"
-                                                                               
                "4\n"
-                                                                               
                "00:01:02,452 --> 00:01:05,216\n"
-                                                                               
                "d\n"))
-                               (let ((beg (point-min))
-                                                       (end 103))              
                                 ; point at TEXT of third subtitle
-                                       (spy-on 'region-beginning 
:and-return-value beg)
-                                       (spy-on 'region-end :and-return-value 
end)
-                                       (setq mark-active t)
-                                       (setq-local subed-subtitle-spacing 0)
-                                       (subed-scale-subtitles-forward 1000)
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 43233)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 45861)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-equal 51675)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 54542)
-                                       (expect (subed-subtitle-msecs-start 3) 
:to-equal 60717)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 62378)
-                                       (expect (subed-subtitle-msecs-start 4) 
:to-equal 62452)
-                                       (expect (subed-subtitle-msecs-stop 4) 
:to-equal 65216))))
-               (describe "when active region extension overlaps next subtitle"
-                       (it "reports an error"
-                               (with-temp-srt-buffer
-                                       (let ((initial-contents
-                                                                (concat "1\n"
-                                                                               
                 "00:00:43,233 --> 00:00:45,861\n"
-                                                                               
                 "a\n"
-                                                                               
                 "\n"
-                                                                               
                 "2\n"
-                                                                               
                 "00:00:51,675 --> 00:00:54,542\n"
-                                                                               
                 "b\n"
-                                                                               
                 "\n"
-                                                                               
                 "3\n"
-                                                                               
                 "00:01:00,717 --> 00:01:02,378\n"
-                                                                               
                 "c\n"
-                                                                               
                 "\n"
-                                                                               
                 "4\n"
-                                                                               
                 "00:01:02,452 --> 00:01:05,216\n"
-                                                                               
                 "d\n"))
-                                                               (beg 1)
-                                                               (end 103))      
                                 ; point at TEXT of third subtitle
-                                               (spy-on 'region-beginning 
:and-return-value beg)
-                                               (spy-on 'region-end 
:and-return-value end)
-                                               (spy-on 'user-error 
:and-call-through)
-                                               (insert initial-contents)
-                                               (setq mark-active t)
-                                               (let 
((subed-enforce-time-boundaries 'error))
-                                                       (expect 
(subed-scale-subtitles-forward 1000) :to-throw 'error))
-                                               (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                               
'(("Can't scale when extension would overlap subsequent subtitles")))
-                                               (expect (buffer-string) 
:to-equal initial-contents))))
-                       (it "when end subtitle start time moved to same time as 
begin subtitle start time."
-                               (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (let ((beg (point-min))
-                                                               (end 
(point-max))
-                                                               (delta (- 
(subed-subtitle-msecs-start 3)
-                                                                               
                        (subed-subtitle-msecs-start 1))))
-                                               (spy-on 'region-beginning 
:and-return-value beg)
-                                               (spy-on 'region-end 
:and-return-value end)
-                                               (spy-on 'user-error 
:and-call-through)
-                                               (setq mark-active t)
-                                               (expect 
(subed-scale-subtitles-backward delta) :to-throw 'error)
-                                               (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                               
'(("Can't scale when contraction would eliminate region")))
-                                               (expect (buffer-string) 
:to-equal mock-srt-data)))))
-    (it "when end subtitle start time moved to just before begin subtitle 
start time."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (let ((beg (point-min))
-                                                       (end (point-max))
-                                                       (delta (- 
(subed-subtitle-msecs-start 3)
-                                                                               
                (subed-subtitle-msecs-start 1))))
-                                       (spy-on 'region-beginning 
:and-return-value beg)
-                                       (spy-on 'region-end :and-return-value 
end)
-                                       (spy-on 'user-error :and-call-through)
-                                       (setq mark-active t)
-                                       (expect (subed-scale-subtitles-backward 
(+ delta 1)) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale when contraction would eliminate region")))
-                                       (expect (buffer-string) :to-equal 
mock-srt-data))))
-    (it "when end subtitle start time moved to just after begin subtitle start 
time."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (let ((beg (point-min))
-                                                       (end (point-max))
-                                                       (delta (- 
(subed-subtitle-msecs-start 3)
-                                                                               
                (subed-subtitle-msecs-start 1))))
-                                       (spy-on 'region-beginning 
:and-return-value beg)
-                                       (spy-on 'region-end :and-return-value 
end)
-                                       (setq mark-active t)
-                                       (subed-scale-subtitles-backward (- 
delta 1))
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 65123)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-equal 61001)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 69112)
-                                       (expect (subed-subtitle-msecs-start 3) 
:to-equal 61001)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 73051))))
-    (it "when begin start time same as end start time."
-      (with-temp-srt-buffer
-                               (let ((initial-contents
-               (concat "1\n"
-                       "00:01:01,000 --> 00:01:05,123\n"
-                       "Foo.\n"
-                       "\n"
-                       "2\n"
-                       "00:01:01,000 --> 00:01:05,123\n"
-                       "Bar.\n"
-                       "\n"
-                       "3\n"
-                       "00:01:01,000 --> 00:01:05,123\n"
-                       "Baz.\n")))
-                                       (spy-on 'user-error :and-call-through)
-                                       (insert initial-contents)
-                                       (expect (subed-scale-subtitles-forward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale subtitle range with 0 time interval")))
-                                       (expect (buffer-string) :to-equal 
initial-contents)
-                                       (spy-calls-reset 'user-error)
-                                       (expect (subed-scale-subtitles-backward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale subtitle range with 0 time interval")))
-                                       (expect (buffer-string) :to-equal 
initial-contents))))
-    (it "when buffer is empty."
-      (spy-on 'user-error :and-call-through)
-      (with-temp-srt-buffer
-                               (expect (subed-scale-subtitles-forward 1000) 
:to-throw 'error)
-                               (expect (spy-calls-all-args 'user-error) 
:to-equal
-                                                               '(("Can't scale 
with fewer than 3 subtitles")))
-                               (expect (buffer-string) :to-equal "")
-                               (spy-calls-reset 'user-error)
-                               (expect (subed-scale-subtitles-backward 1000) 
:to-throw 'error)
-                               (expect (spy-calls-all-args 'user-error) 
:to-equal
-                                                               '(("Can't scale 
with fewer than 3 subtitles")))
-                               (expect (buffer-string) :to-equal "")))
-    (it "when buffer contains one subtitle."
-      (spy-on 'user-error :and-call-through)
-      (with-temp-srt-buffer
-                               (let ((initial-contents
-               (concat "1\n"
-                       "00:01:01,000 --> 00:01:05,123\n"
-                       "Foo.\n")))
-                                       (insert initial-contents)
-                                       (expect (subed-scale-subtitles-forward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale with fewer than 3 subtitles")))
-                                       (expect (buffer-string) :to-equal 
initial-contents)
-                                       (spy-calls-reset 'user-error)
-                                       (expect (subed-scale-subtitles-backward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale with fewer than 3 subtitles")))
-                                       (expect (buffer-string) :to-equal 
initial-contents))))
-    (it "when buffer contains two subtitles."
-      (spy-on 'user-error :and-call-through)
-      (with-temp-srt-buffer
-                               (let ((initial-contents
-               (concat "1\n"
-                       "00:01:01,000 --> 00:01:05,123\n"
-                       "Foo.\n"
-                       "\n"
-                       "2\n"
-                       "00:02:02,234 --> 00:02:10,345\n"
-                       "Bar.\n")))
-                                       (insert initial-contents)
-                                       (expect (subed-scale-subtitles-forward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale with only 2 subtitles")))
-                                       (expect (buffer-string) :to-equal 
initial-contents)
-                                       (spy-calls-reset 'user-error)
-                                       (expect (subed-scale-subtitles-backward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale with only 2 subtitles")))
-                                       (expect (buffer-string) :to-equal 
initial-contents))))
-    (it "reports an error if the subtitle in region has a start time after end 
start time."
-      (spy-on 'user-error :and-call-through)
-      (with-temp-srt-buffer
-                               (let ((initial-contents
-               (concat "1\n"
-                       "00:01:01,000 --> 00:01:05,123\n"
-                       "Foo.\n"
-                       "\n"
-                       "2\n"
-                       "00:03:03,45 --> 00:03:15,5\n"
-                       "Baz.\n"
-                       "\n"
-                       "3\n"
-                       "00:02:02,234 --> 00:02:10,345\n"
-                       "Bar.\n"))
-                                                       
(subed-enforce-time-boundaries 'error)
-                                                       (subed-subtitle-spacing 
100))
-                                       (insert initial-contents)
-                                       (expect subed-enforce-time-boundaries 
:to-equal 'error)
-                                       (expect (subed-scale-subtitles-forward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale when nonchronological subtitles exist")))
-                                       (expect (buffer-string) :to-equal 
initial-contents)
-                                       (spy-calls-reset 'user-error)
-                                       (expect (subed-scale-subtitles-backward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale when nonchronological subtitles exist")))
-                                       (expect (buffer-string) :to-equal 
initial-contents))))
-    (it "with first subtitle containing no timestamp."
-      (spy-on 'user-error :and-call-through)
-      (with-temp-srt-buffer
-                               (let ((initial-contents
-               (concat "1\n"
-                       "a\n"
-                       "\n"
-                       "2\n"
-                       "00:00:51,675 --> 00:00:54,542\n"
-                       "b\n"
-                       "\n"
-                       "3\n"
-                       "00:01:00,717 --> 00:01:02,378\n"
-                       "c\n")))
-                                       (insert initial-contents)
-                                       (expect (subed-scale-subtitles-forward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale when first subtitle timestamp missing")))
-                                       (expect (buffer-string) :to-equal 
initial-contents)
-                                       (spy-calls-reset 'user-error)
-                                       (expect (subed-scale-subtitles-backward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale when first subtitle timestamp missing")))
-                                       (expect (buffer-string) :to-equal 
initial-contents))))
-    (it "with last subtitle containing no timestamp."
-      (spy-on 'user-error :and-call-through)
-      (with-temp-srt-buffer
-                               (let ((initial-contents
-               (concat "1\n"
-                       "00:00:43,233 --> 00:00:45,861\n"
-                       "a\n"
-                       "\n"
-                       "2\n"
-                       "00:00:51,675 --> 00:00:54,542\n"
-                       "b\n"
-                       "\n"
-                       "3\n"
-                       "c\n")))
-                                       (insert initial-contents)
-                                       (expect (subed-scale-subtitles-forward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale when last subtitle timestamp missing")))
-                                       (expect (buffer-string) :to-equal 
initial-contents)
-                                       (spy-calls-reset 'user-error)
-                                       (expect (subed-scale-subtitles-backward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale when last subtitle timestamp missing")))
-                                       (expect (buffer-string) :to-equal 
initial-contents))))
-    (it "with subtitle in region containing no timestamp."
-      (spy-on 'user-error :and-call-through)
-      (with-temp-srt-buffer
-                               (let ((initial-contents
-               (concat "1\n"
-                       "00:00:43,233 --> 00:00:45,861\n"
-                       "a\n"
-                       "\n"
-                       "2\n"
-                       "b\n"
-                       "\n"
-                       "3\n"
-                       "00:01:00,717 --> 00:01:02,378\n"
-                       "c\n")))
-                                       (insert initial-contents)
-                                       (expect (subed-scale-subtitles-forward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale when subtitle timestamp missing")))
-                                       (expect (buffer-string) :to-equal 
initial-contents)
-                                       (spy-calls-reset 'user-error)
-                                       (expect (subed-scale-subtitles-backward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale when subtitle timestamp missing")))
-                                       (expect (buffer-string) :to-equal 
initial-contents))))
-    (it "with out-of-order range."
-      (spy-on 'user-error :and-call-through)
-      (with-temp-srt-buffer
-                               (expect (subed-scale-subtitles 1000 5 4) 
:to-throw 'error)
-                               (expect (spy-calls-all-args 'user-error) 
:to-equal
-                                                               '(("Can't scale 
with improper range"))))))
-
-  (describe "Trimming subtitles"
-    (describe "when spacing is 0"
-      (it "detects overlaps"
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:05,000\nA\n\n"
-                                                                       
"2\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 0))
-                                               (expect 
(subed--identify-overlaps)
-                                                                               
:to-equal '(1)))))
-      (it "ignores non-overlapping subtitles"
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,000\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 0))
-                                               (expect 
(subed--identify-overlaps)
-                                                                               
:to-equal nil)))))
-    (describe "when spacing is 1"
-      (it "detects overlaps"
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:04,000\nA\n\n"
-                                                                       
"2\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 1))
-                                               (expect 
(subed--identify-overlaps)
-                                                                               
:to-equal '(1)))))
-      (it "ignores non-overlapping subtitles"
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,999\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 1))
-                                               (expect 
(subed--identify-overlaps)
-                                                                               
:to-equal nil)))))
-    (describe "when spacing is greater"
-      (it "detects overlaps because of spacing"
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,999\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:05,000\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (expect 
(subed--identify-overlaps)
-                                                                               
:to-equal '(1 2)))))
-      (it "ignores non-overlapping subtitles."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:03,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (expect 
(subed--identify-overlaps)
-                                                                               
:to-equal nil)))))
-    (describe "overlap end time"
-      (it "sets it to the next timestamp minus spacing."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (subed-jump-to-subtitle-id 2)
-                                               (subed-trim-overlap-stop)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal 3900))))
-      (it "sets it to the next timestamp minus the argument."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (subed-jump-to-subtitle-id 2)
-                                               (subed-trim-overlap-stop 500)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal 3500))))
-      (it "ignores non-overlapping subtitles."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (subed-jump-to-subtitle-id 1)
-                                               (subed-trim-overlap-stop)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal 2000))))
-      (it "handles the last subtitle gracefully."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (subed-jump-to-subtitle-id 3)
-                                               (subed-trim-overlap-stop 500)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal 6000))))
-      (it "handles empty buffers gracefully."
-        (with-temp-srt-buffer
-                                       (subed-trim-overlap-stop 500)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal nil)))
-                       (describe "when adjusting to time boundaries"
-                               (it "adjusts the start time if the new stop 
would be before the start time."
-                                       (with-temp-srt-buffer
-                                               (insert "1\n00:00:01,500 --> 
00:00:02,000\nA\n\n"
-                                                                               
"2\n00:00:01,000 --> 00:00:02,000\nA\n\n"
-                                                                               
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                               (let ((subed-subtitle-spacing 
100)
-                                                                       
(subed-enforce-time-boundaries 'adjust))
-                                                       
(subed-jump-to-subtitle-id 1)
-                                                       (expect 
(subed-trim-overlap-stop) :to-equal 900)
-                                                       (expect 
(subed-subtitle-msecs-stop 1) :to-equal 900)
-                                                       (expect 
(subed-subtitle-msecs-start 1) :to-equal 900)))))
-                       (describe "when clipping to time boundaries"
-                               (it "adjusts the start time if the new stop 
would be before the start time."
-                                       (with-temp-srt-buffer
-                                               (insert "1\n00:00:01,500 --> 
00:00:02,000\nA\n\n"
-                                                                               
"2\n00:00:01,000 --> 00:00:02,000\nA\n\n"
-                                                                               
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                               (let ((subed-subtitle-spacing 
100)
-                                                                       
(subed-enforce-time-boundaries 'clip))
-                                                       
(subed-jump-to-subtitle-id 1)
-                                                       (expect 
(subed-trim-overlap-stop) :to-equal 1500)
-                                                       (expect 
(subed-subtitle-msecs-stop 1) :to-equal 1500)
-                                                       (expect 
(subed-subtitle-msecs-start 1) :to-equal 1500))))))
-    (describe "overlap start time"
-      (it "sets next start to the current timestamp plus spacing."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (subed-jump-to-subtitle-id 2)
-                                               (subed-trim-overlap-next-start)
-                                               
(subed-forward-subtitle-time-start)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal 4600))))
-      (it "sets next start to the current timestamp plus the argument."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (subed-jump-to-subtitle-id 2)
-                                               (subed-trim-overlap-next-start 
500)
-                                               
(subed-forward-subtitle-time-start)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal 5000))))
-      (it "handles the last subtitle gracefully."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (subed-jump-to-subtitle-id 3)
-                                               (subed-trim-overlap-next-start 
500)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal 4000))))
-      (it "adjusts the timestamp if the new start is past the stop time."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:01,500 --> 00:00:02,000\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100)
-                                                               
(subed-enforce-time-boundaries 'adjust))
-                                               (subed-jump-to-subtitle-id 1)
-                                               (expect 
(subed-trim-overlap-next-start 500) :to-equal 2500)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 2500)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 2500))))
-      (it "handles empty buffers gracefully."
-        (with-temp-srt-buffer
-                                       (subed-trim-overlap-next-start 500)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal nil))))
-    (describe "trimming overlaps"
-      (it "adjusts stop times by default."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n"
-                                                                       
"4\n00:00:05,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (subed-trim-overlaps))
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 2000)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 3900)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 4900)))
-      (it "adjusts start times if specified."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n"
-                                                                       
"4\n00:00:05,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100)
-                                                               
(subed-enforce-time-boundaries 'adjust)
-                                                               
(subed-trim-overlap-use-start t))
-                                               (subed-trim-overlaps)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 4500)
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal 4600)
-                                               (expect 
(subed-subtitle-msecs-start 4) :to-equal 6100))))
-      (it "can specify the number of milliseconds."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n"
-                                                                       
"4\n00:00:05,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (subed-trim-overlaps 200))
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 2000)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 3800)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 4800)))
-      (it "handles empty buffers gracefully."
-        (with-temp-srt-buffer
-                                       (expect (subed-trim-overlaps) :not 
:to-throw)))
-      (it "handles single subtitles gracefully."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (expect (subed-trim-overlaps) 
:not :to-throw))
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 1000)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 2000))))
-    (describe "when configured to trim on save,"
-      (it "trims overlaps after sorting."
-        (with-temp-srt-buffer
-                                       (let ((subed-trim-overlap-on-save t)
-                                                               
(subed-subtitle-spacing 200))
-                                               (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                               
"2\n00:00:04,000 --> 00:00:06,000\nA\n\n"
-                                                                               
"3\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                               
"4\n00:00:05,000 --> 00:00:06,000\nA\n\n")
-                                               (subed-prepare-to-save)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3800)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 4800)))))
-               (describe "when configured to check on save,"
-                       (it "reports overlaps."
-                               (with-temp-srt-buffer
-                                       ;; Changed the test data to avoid 
sorting confusion
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA1\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA2\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA3\n\n"
-                                                                       
"4\n00:00:05,000 --> 00:00:06,000\nA4\n\n")
-                                       (let ((subed-trim-overlap-check-on-save 
t)
-                                                               
(subed-trim-overlap-on-save nil)
-                                                               
(subed-subtitle-spacing 200)
-                                                               
(subed-enforce-time-boundaries 'adjust)
-                                                               
(buffer-modified-p nil))
-                                               (spy-on 
'subed-trim-overlap-check :and-call-through)
-                                               (spy-on 'subed-trim-overlaps 
:and-call-through)
-                                               (spy-on 'yes-or-no-p 
:and-return-value t)
-                                               (subed-prepare-to-save)
-                                               (expect 
'subed-trim-overlap-check :to-have-been-called)
-                                               (expect 'yes-or-no-p 
:to-have-been-called)
-                                               ;; Note changed behaviour: 
adjust the start time if needed,
-                                               ;; and don't change stop if 
there's enough space
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 3000)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3800)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 4800)))))
-    (describe "when configured to check on load,"
-      (it "reports overlaps."
-        (with-temp-buffer
-          (insert "1\n00:00:01,000 --> 00:00:02,000\nA\n\n"
-                  "2\n00:00:04,000 --> 00:00:06,000\nA\n\n"
-                  "3\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                  "4\n00:00:05,000 --> 00:00:06,000\nA\n\n")
-          (let ((subed-trim-overlap-check-on-load t)
-                (subed-subtitle-spacing 200))
-            (spy-on 'subed-trim-overlap-check :and-return-value nil)
-            (subed-srt-mode)
-            (expect subed--subtitle-format :to-equal "srt")
-            (expect 'subed-trim-overlap-check :to-have-been-called))))))
-  (describe "Getting a list of subtitles"
-    (it "returns nil in an empty buffer."
-      (with-temp-srt-buffer
-                               (expect (subed-subtitle-list) :to-equal nil)))
-    (it "returns the list."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (expect (subed-subtitle-list) :to-equal
-                                                               '((1 61000 
65123 "Foo." nil)
-                                                                       (2 
122234 130345 "Bar." nil)
-                                                                       (3 
183450 195500 "Baz." nil)))))
-    (it "returns a subset when bounds are specified."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (subed-jump-to-subtitle-id 3)
-                               (backward-char 1)
-                               (expect (subed-subtitle-list (point-min) 
(point))
-                                                               :to-equal
-                                                               '((1 61000 
65123 "Foo." nil)
-                                                                       (2 
122234 130345 "Bar." nil))))))
-  (describe "Appending a list of subtitles"
-    (it "adds them."
-      (with-temp-srt-buffer
-       (let ((list '((1 61000 65123 "Foo." nil)
-                                                                          (2 
122234 130345 "Bar." nil)
-                                                                          (3 
183450 195500 "Baz." nil))))
-         (subed-append-subtitle-list list)
-                                (expect (subed-subtitle-list)
-                 :to-equal list)))))
-  (describe "Getting the text of a list"
-    (it "returns a blank string when given nothing."
-      (expect (subed-subtitle-list-text nil) :to-equal ""))
-    (it "returns the text of a list of subtitles."
-      (expect
-       (subed-subtitle-list-text
-        '((nil 0 99 "Hello")
-          (nil 100 199 "world" "Comment")))
-       :to-equal "Hello\nworld\n"))
-    (it "includes comments."
-      (expect
-       (subed-subtitle-list-text
-        '((nil 0 99 "Hello")
-          (nil 100 199 "world" "NOTE Comment\n"))
-        t)
-       :to-equal "Hello\n\nNOTE Comment\nworld\n"))
-    (it "includes comments transformed by a function."
-      (let ((val
-             (subed-subtitle-list-text
-              '((nil 0 99 "Hello")
-                (nil 100 199 "world" "NOTE Comment\n"))
-              #'upcase)))
-        (expect val :to-equal "Hello\n\nNOTE COMMENT\nworld\n"))))
-  (describe "Copying region text"
-    (it "works on the whole buffer"
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (subed-copy-region-text)
-                               (expect (current-kill 0) :to-equal 
"Foo.\nBar.\nBaz.\n")))
-    (it "works on a specified region."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (subed-copy-region-text (re-search-backward 
"Foo.") (re-search-forward "Bar."))
-                               (expect (current-kill 0) :to-equal 
"Foo.\nBar.\n"))))
-  (describe "Sorting"
-    (it "detects sorted lists."
-      (expect (subed--sorted-p '((1 1000 2000 "Test")
-                                 (2 2000 3000 "Test")
-                                 (3 3000 4000 "Test")))))
-    (it "detects unsorted lists."
-      (expect (subed--sorted-p '((1 3000 2000 "Test")
-                                 (2 4000 3000 "Test")
-                                 (3 1000 4000 "Test")))
-              :to-be nil))
-    (it "doesn't happen in an empty buffer."
-      (with-temp-srt-buffer
-        (spy-on 'sort-subr :and-call-through)
-        (subed-sort)
-        (expect 'sort-subr :not :to-have-been-called)))
-    (describe "already-sorted subtitles"
-      (it "doesn't rearrange subtitles."
-        (with-temp-srt-buffer
-          (insert mock-srt-data)
-          (spy-on 'sort-subr :and-call-through)
-          (subed-sort)
-          (expect 'sort-subr :not :to-have-been-called)))
-      (it "maintains the mark ring."
-        (with-temp-srt-buffer
-          (insert mock-srt-data)
-          (let ((mark-ring))
-            (push-mark 10 t nil)
-            (push-mark 20 t nil)
-            (push-mark 3 t nil)
-            (expect (marker-position (car mark-ring)) :to-be 20)
-            (expect (marker-position (cadr mark-ring)) :to-be 10)
-            (subed-sort)
-            (expect (marker-position (car mark-ring)) :to-be 20)
-            (expect (marker-position (cadr mark-ring)) :to-be 10)))))
-    (it "sorts subtitles by start time."
-      (with-temp-srt-buffer
-        (insert mock-srt-data "\n4\n00:02:01,000 --> 00:03:01,000\nNot 
sorted.\n")
-        (expect (subed--sorted-p) :to-be nil)
-        (goto-char (point-min))
-        (subed-sort)
-        (expect (subed-subtitle-text 2) :to-equal "Not sorted.")
-        (expect (subed-subtitle-text 3) :to-equal "Bar.")
-        (expect (subed-subtitle-text 4) :to-equal "Baz.")))))
-(describe "COMMON"
-  (describe "Iterating over subtitles"
-               (describe "without providing beginning and end"
-                       (it "goes through each subtitle."
-                               (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (subed-jump-to-subtitle-time-stop 1)
-                                       (subed-for-each-subtitle nil nil nil
-                                               (expect (looking-at "^[0-9]$") 
:to-be t)
-                                               (forward-line 2)
-                                               (kill-line)
-                                               (insert "Hello."))
-                                       (expect (subed-subtitle-text 1) 
:to-equal "Hello.")
-                                       (expect (subed-subtitle-text 2) 
:to-equal "Bar.")
-                                       (expect (subed-subtitle-text 3) 
:to-equal "Baz.")
-                                       (expect (point) :to-equal 20)
-                                       (subed-jump-to-subtitle-time-stop 2)
-                                       (subed-for-each-subtitle nil nil nil
-                                               (expect (looking-at "^[0-9]$") 
:to-be t)
-                                               (forward-line 2)
-                                               (kill-line)
-                                               (insert "HEllo."))
-                                       (expect (subed-subtitle-text 1) 
:to-equal "Hello.")
-                                       (expect (subed-subtitle-text 2) 
:to-equal "HEllo.")
-                                       (expect (subed-subtitle-text 3) 
:to-equal "Baz.")
-                                       (expect (point) :to-equal 60)
-                                       (subed-jump-to-subtitle-time-stop 3)
-                                       (subed-for-each-subtitle nil nil nil
-                                               (expect (looking-at "^[0-9]$") 
:to-be t)
-                                               (forward-line 2)
-                                               (kill-line)
-                                               (insert "HELlo."))
-                                       (expect (subed-subtitle-text 1) 
:to-equal "Hello.")
-                                       (expect (subed-subtitle-text 2) 
:to-equal "HEllo.")
-                                       (expect (subed-subtitle-text 3) 
:to-equal "HELlo.")
-                                       (expect (point) :to-equal 99))))
-               (describe "providing only the beginning"
-                       (it "goes forward."
-                               (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (subed-jump-to-subtitle-time-start 1)
-                                       (expect (point) :to-equal 3)
-                                       (let ((new-texts (list "A" "B" "C")))
-                                               (subed-for-each-subtitle 71 nil 
nil
-                                                       (expect (looking-at 
"^[0-9]$") :to-be t)
-                                                       (forward-line 2)
-                                                       (kill-line)
-                                                       (insert (pop 
new-texts))))
-                                       (expect (subed-subtitle-text 1) 
:to-equal "Foo.")
-                                       (expect (subed-subtitle-text 2) 
:to-equal "A")
-                                       (expect (subed-subtitle-text 3) 
:to-equal "B")
-                                       (expect (point) :to-equal 3)))
-                       (it "goes backward."
-                               (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (subed-jump-to-subtitle-time-stop 3)
-                                       (expect (point) :to-equal 95)
-                                       (let ((new-texts (list "A" "B" "C")))
-                                               (subed-for-each-subtitle 75 nil 
:reverse
-                                                       (expect (looking-at 
"^[0-9]$") :to-be t)
-                                                       (forward-line 2)
-                                                       (kill-line)
-                                                       (insert (pop 
new-texts))))
-                                       (expect (subed-subtitle-text 1) 
:to-equal "Foo.")
-                                       (expect (subed-subtitle-text 2) 
:to-equal "B")
-                                       (expect (subed-subtitle-text 3) 
:to-equal "A")
-                                       (expect (point) :to-equal 92)))
-                       )
-               (describe "providing beginning and end,"
-                       (describe "excluding subtitles above"
-                               (it "goes forward."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               
(subed-jump-to-subtitle-time-stop 1)
-                                               (expect (point) :to-equal 20)
-                                               (let ((new-texts (list "A" "B" 
"C")))
-                                                       
(subed-for-each-subtitle 71 79 nil
-                                                               (expect 
(looking-at "^[0-9]$") :to-be t)
-                                                               (forward-line 2)
-                                                               (kill-line)
-                                                               (insert (pop 
new-texts))))
-                                               (expect (subed-subtitle-text 1) 
:to-equal "Foo.")
-                                               (expect (subed-subtitle-text 2) 
:to-equal "A")
-                                               (expect (subed-subtitle-text 3) 
:to-equal "B")
-                                               (expect (point) :to-equal 20)))
-                               (it "goes backward."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               
(subed-jump-to-subtitle-time-start 3)
-                                               (expect (point) :to-equal 79)
-                                               (let ((new-texts (list "A" "B" 
"C")))
-                                                       
(subed-for-each-subtitle 39 77 :reverse
-                                                               (expect 
(looking-at "^[0-9]$") :to-be t)
-                                                               (forward-line 2)
-                                                               (kill-line)
-                                                               (insert (pop 
new-texts))))
-                                               (expect (subed-subtitle-text 1) 
:to-equal "Foo.")
-                                               (expect (subed-subtitle-text 2) 
:to-equal "B")
-                                               (expect (subed-subtitle-text 3) 
:to-equal "A")
-                                               (expect (point) :to-equal 76))))
-                       (describe "excluding subtitles below"
-                               (it "goes forward."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-text 3)
-                                               (expect (point) :to-equal 106)
-                                               (let ((new-texts (list "A" "B" 
"C")))
-                                                       
(subed-for-each-subtitle 5 76 nil
-                                                               (expect 
(looking-at "^[0-9]$") :to-be t)
-                                                               (forward-line 2)
-                                                               (kill-line)
-                                                               (insert (pop 
new-texts))))
-                                               (expect (subed-subtitle-text 1) 
:to-equal "A")
-                                               (expect (subed-subtitle-text 2) 
:to-equal "B")
-                                               (expect (subed-subtitle-text 3) 
:to-equal "Baz.")
-                                               (expect (point) :to-equal 100)))
-                               (it "goes backward."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               
(subed-jump-to-subtitle-time-stop 2)
-                                               (expect (point) :to-equal 58)
-                                               (let ((new-texts (list "A" "B" 
"C")))
-                                                       
(subed-for-each-subtitle 20 76 :reverse
-                                                               (expect 
(looking-at "^[0-9]$") :to-be t)
-                                                               (forward-line 2)
-                                                               (kill-line)
-                                                               (insert (pop 
new-texts))))
-                                               (expect (subed-subtitle-text 1) 
:to-equal "B")
-                                               (expect (subed-subtitle-text 2) 
:to-equal "A")
-                                               (expect (subed-subtitle-text 3) 
:to-equal "Baz.")
-                                               (expect (point) :to-equal 55)))
-                               )
-                       ))
-       (describe "Setting subtitle start time"
-               (describe "when this causes an overlap"
-                       (describe "when time boundaries are enforced by errors"
-                               ;; lexical binding gets confused at some point
-                               (before-all
-                                       (setq subed-enforce-time-boundaries 
'error
-                                                               
subed-subtitle-spacing 100))
-                               (it "continues when setting the first 
subtitle's start time."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 1)
-                                               (subed-set-subtitle-time-start 
30000)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal 30000)))
-                               (it "ignores the previous subtitle's stop time 
if there's enough spacing."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 2)
-                                               (let 
((subed-enforce-time-boundaries 'error)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       
(subed-set-subtitle-time-start (subed-timestamp-to-msecs "00:01:10,000")))
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal (subed-timestamp-to-msecs 
"00:01:10,000"))
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal (subed-timestamp-to-msecs 
"00:01:05,123"))))
-                               (it "ignores the previous subtitle's stop time 
if spacing is unspecified."
-                                       (let ((subed-subtitle-spacing nil)
-                                                               
(subed-enforce-time-boundaries 'error))
-                                               (with-temp-srt-buffer
-                                                       (insert mock-srt-data)
-                                                       
(subed-jump-to-subtitle-id 2)
-                                                       
(subed-set-subtitle-time-start (subed-timestamp-to-msecs "00:01:05,000"))
-                                                       (expect 
(subed-subtitle-msecs-start) :to-equal (subed-timestamp-to-msecs 
"00:01:05,000"))
-                                                       (expect 
(subed-subtitle-msecs-stop 1) :to-equal (subed-timestamp-to-msecs 
"00:01:05,123")))))
-                               (it "reports an error if the change violates 
spacing."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 2)
-                                               (let 
((subed-enforce-time-boundaries 'error)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       (expect 
(subed-set-subtitle-time-start (subed-timestamp-to-msecs "00:01:05,000")) 
:to-throw 'error)))))
-                       (describe "when time boundaries are enforced by 
adjusting"
-                               (it "continues when setting the first 
subtitle's start time."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 1)
-                                               (let 
((subed-enforce-time-boundaries 'adjust)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       
(subed-set-subtitle-time-start (subed-timestamp-to-msecs "00:01:00,000")))
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal (subed-timestamp-to-msecs 
"00:01:00,000"))))
-                               (it "ignores the previous subtitle's stop time 
if there's enough spacing."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 2)
-                                               (let 
((subed-enforce-time-boundaries 'adjust)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       
(subed-set-subtitle-time-start (subed-timestamp-to-msecs "00:01:10,000")))
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal (subed-timestamp-to-msecs 
"00:01:10,000"))
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal (subed-timestamp-to-msecs 
"00:01:05,123"))))
-                               (it "ignores the previous subtitle's stop time 
if spacing is unspecified."
-                                       (let ((subed-subtitle-spacing nil)
-                                                               
(subed-enforce-time-boundaries 'adjust))
-                                               (with-temp-srt-buffer
-                                                       (insert mock-srt-data)
-                                                       
(subed-jump-to-subtitle-id 2)
-                                                       
(subed-set-subtitle-time-start (subed-timestamp-to-msecs "00:01:05,000"))
-                                                       (expect 
(subed-subtitle-msecs-start) :to-equal (subed-timestamp-to-msecs 
"00:01:05,000"))
-                                                       (expect 
(subed-subtitle-msecs-stop 1) :to-equal (subed-timestamp-to-msecs 
"00:01:05,123")))))
-                               (it "adjusts the previous subtitle's stop time 
to maintain spacing."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 2)
-                                               (let 
((subed-enforce-time-boundaries 'adjust)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       
(subed-set-subtitle-time-start (subed-timestamp-to-msecs "00:01:05,000")))
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal (subed-timestamp-to-msecs 
"00:01:05,000"))
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal (subed-timestamp-to-msecs 
"00:01:04,900"))))
-                               (it "adjusts the previous subtitle's stop time, 
but not the one before it."
-                                       ;; TODO: Decide if we want to change 
this expectation
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 3)
-                                               (let 
((subed-enforce-time-boundaries 'adjust)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       
(subed-set-subtitle-time-start (subed-timestamp-to-msecs "00:01:05,000")))
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal (subed-timestamp-to-msecs 
"00:01:05,000"))
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal (subed-timestamp-to-msecs 
"00:01:04,900"))
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal (subed-timestamp-to-msecs 
"00:01:05,123"))))
-                               (it "adjusts the current subtitle's stop time 
to at least the start time."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 2)
-                                               (let 
((subed-enforce-time-boundaries 'adjust)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       
(subed-set-subtitle-time-start (subed-timestamp-to-msecs "00:02:11,000")))
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal (subed-timestamp-to-msecs 
"00:02:11,000"))
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal (subed-timestamp-to-msecs 
"00:01:05,123"))))))
-               (describe "when it will result in invalid duration"
-                       :var ((temp-time (+ (* 3 60 1000) (* 17 1000))))
-                       (it "throws an error when enforcing time boundaries."
-                               (let ((subed-enforce-time-boundaries 'error))
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 3)
-                                               (expect 
(subed-set-subtitle-time-start temp-time)
-                                                                               
:to-throw 'error))))
-                       (it "changes it when ignoring time boundaries."
-                               (let ((subed-enforce-time-boundaries nil))
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 3)
-                                               (subed-set-subtitle-time-start 
temp-time)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal temp-time))))
-                       (it "changes it when negative durations are allowed."
-                               (let ((subed-enforce-time-boundaries 'error))
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 3)
-                                               (subed-set-subtitle-time-start 
temp-time nil t)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal temp-time))))))
-       (describe "Setting subtitle stop time"
-               (describe "when this causes an overlap"
-                       (describe "when time boundaries are enforced by errors"
-                               :var ((subed-subtitle-spacing 100))
-                               (it "continues when setting the last subtitle's 
stop time."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 3)
-                                               (let 
((subed-enforce-time-boundaries 'error))
-                                                       
(subed-set-subtitle-time-stop (subed-timestamp-to-msecs "00:03:30,000")))
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal (subed-timestamp-to-msecs 
"00:03:30,000"))))
-                               (it "ignores the next subtitle's start time if 
there's enough spacing."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 2)
-                                               (let 
((subed-enforce-time-boundaries 'error))
-                                                       
(subed-set-subtitle-time-stop (subed-timestamp-to-msecs "00:03:01,000")))
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal (subed-timestamp-to-msecs "00:03:01,000"))
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal (subed-timestamp-to-msecs 
"00:03:03,45"))))
-                               (it "ignores the next subtitle's start time if 
spacing is unspecified."
-                                       (let ((subed-subtitle-spacing nil)
-                                                               
(subed-enforce-time-boundaries 'error))
-                                               (with-temp-srt-buffer
-                                                       (insert mock-srt-data)
-                                                       
(subed-jump-to-subtitle-id 2)
-                                                       (let 
((subed-enforce-time-boundaries 'error))
-                                                               
(subed-set-subtitle-time-stop (subed-timestamp-to-msecs "00:03:05,000")))
-                                                       (expect 
(subed-subtitle-msecs-stop) :to-equal (subed-timestamp-to-msecs "00:03:05,000"))
-                                                       (expect 
(subed-subtitle-msecs-start 3) :to-equal (subed-timestamp-to-msecs 
"00:03:03,45")))))
-                               (it "reports an error if the change violates 
spacing."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 2)
-                                               (let 
((subed-enforce-time-boundaries 'error)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       (expect 
(subed-set-subtitle-time-stop (subed-timestamp-to-msecs "00:03:05,000"))
-                                                                               
        :to-throw 'error)))))
-                       (describe "when time boundaries are enforced by 
adjusting"
-                               :var ((subed-subtitle-spacing 100))
-                               (it "continues when setting the last subtitle's 
stop time."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 3)
-                                               (let 
((subed-enforce-time-boundaries 'adjust))
-                                                       
(subed-set-subtitle-time-stop (subed-timestamp-to-msecs "00:03:30,000")))
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal (subed-timestamp-to-msecs 
"00:03:30,000"))))
-                               (it "ignores the next subtitle's start time if 
there's enough spacing."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 2)
-                                               (let 
((subed-enforce-time-boundaries 'adjust))
-                                                       
(subed-set-subtitle-time-stop (subed-timestamp-to-msecs "00:03:01,000")))
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal (subed-timestamp-to-msecs "00:03:01,000"))
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal (subed-timestamp-to-msecs 
"00:03:03,45"))))
-                               (it "ignores the next subtitle's start time if 
spacing is unspecified."
-                                       (let ((subed-subtitle-spacing nil))
-                                               (with-temp-srt-buffer
-                                                       (insert mock-srt-data)
-                                                       
(subed-jump-to-subtitle-id 2)
-                                                       (let 
((subed-enforce-time-boundaries 'adjust))
-                                                               
(subed-set-subtitle-time-stop (subed-timestamp-to-msecs "00:03:05,000")))
-                                                       (expect 
(subed-subtitle-msecs-stop) :to-equal (subed-timestamp-to-msecs "00:03:05,000"))
-                                                       (expect 
(subed-subtitle-msecs-start 3) :to-equal (subed-timestamp-to-msecs 
"00:03:03,45")))))
-                               (it "adjusts the next subtitle's start time to 
maintain spacing."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 2)
-                                               (let 
((subed-enforce-time-boundaries 'adjust)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       
(subed-set-subtitle-time-stop (subed-timestamp-to-msecs "00:03:05,000")))
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal (subed-timestamp-to-msecs "00:03:05,000"))
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal (subed-timestamp-to-msecs 
"00:03:05,100"))))
-                               (it "adjusts the next subtitle's stop time, but 
not the one after it."
-                                       ;; TODO: Decide if we want to change 
this expectation
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 1)
-                                               (let 
((subed-enforce-time-boundaries 'adjust)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       
(subed-set-subtitle-time-stop (subed-timestamp-to-msecs "00:03:05,000")))
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal (subed-timestamp-to-msecs "00:03:05,000"))
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal (subed-timestamp-to-msecs 
"00:03:05,100"))
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal (subed-timestamp-to-msecs 
"00:03:03,45"))))))
-               (describe "when it will result in invalid duration"
-                       (it "adjusts the start time as needed."
-                               (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (subed-jump-to-subtitle-id 3)
-                                       (let ((subed-enforce-time-boundaries 
'adjust)
-                                                               (temp-time 
(subed-timestamp-to-msecs "00:03:01,000")))
-                                               (subed-set-subtitle-time-stop 
temp-time)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal temp-time)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal temp-time))))
-                       (it "throws an error when enforcing time boundaries."
-                               (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (subed-jump-to-subtitle-id 3)
-                                       (let ((subed-enforce-time-boundaries 
'error)
-                                                               (temp-time 
(subed-timestamp-to-msecs "00:03:01,000")))
-                                               (expect 
(subed-set-subtitle-time-stop temp-time)
-                                                                               
:to-throw 'error))))
-                       (it "changes it when ignoring time boundaries."
-                               (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (subed-jump-to-subtitle-id 3)
-                                       (let ((subed-enforce-time-boundaries 
nil)
-                                                               (temp-time 
(subed-timestamp-to-msecs "00:03:01,000")))
-                                               (subed-set-subtitle-time-stop 
temp-time)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal temp-time))))
-                       (it "changes it when negative durations are allowed."
-                               (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (subed-jump-to-subtitle-id 3)
-                                       (let ((subed-enforce-time-boundaries 
'error)
-                                                               (temp-time 
(subed-timestamp-to-msecs "00:03:01,000")))
-                                               (subed-set-subtitle-time-stop 
temp-time nil t)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal temp-time))))))
-  (describe "Adjusting subtitle start/stop time"
-    :var (subed-subtitle-time-adjusted-hook)
-    (it "runs the appropriate hook."
-      (let ((foo (setf (symbol-function 'foo) (lambda (msecs) ()))))
-        (spy-on 'foo)
-        (with-temp-srt-buffer
-                                       (add-hook 
'subed-subtitle-time-adjusted-hook 'foo)
-                                       (insert mock-srt-data)
-                                       (subed-jump-to-subtitle-id 1)
-                                       (expect 
(subed-adjust-subtitle-time-start 100) :to-equal 100)
-                                       (expect 'foo :to-have-been-called-with 
61100)
-                                       (expect 'foo :to-have-been-called-times 
1)
-                                       (expect 
(subed-adjust-subtitle-time-stop 123) :to-equal 123)
-                                       (expect 'foo :to-have-been-called-with 
61100)
-                                       (expect 'foo :to-have-been-called-times 
2)
-                                       (subed-jump-to-subtitle-id 2)
-                                       (expect 
(subed-adjust-subtitle-time-start 6) :to-equal 6)
-                                       (expect 'foo :to-have-been-called-with 
122240)
-                                       (expect 'foo :to-have-been-called-times 
3)
-                                       (expect 
(subed-adjust-subtitle-time-stop 123) :to-equal 123)
-                                       (expect 'foo :to-have-been-called-with 
122240)
-                                       (expect 'foo :to-have-been-called-times 
4))))
-    (it "adjusts the start/stop time."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (subed-jump-to-subtitle-id 1)
-                               (expect (subed-adjust-subtitle-time-start 100) 
:to-equal 100)
-                               (expect (save-excursion 
(subed-jump-to-subtitle-time-start)
-                                                                               
                                                (thing-at-point 'line)) 
:to-equal "00:01:01,100 --> 00:01:05,123\n")
-                               (expect (subed-adjust-subtitle-time-start -200) 
:to-equal -200)
-                               (expect (save-excursion 
(subed-jump-to-subtitle-time-start)
-                                                                               
                                                (thing-at-point 'line)) 
:to-equal "00:01:00,900 --> 00:01:05,123\n")
-                               (expect (subed-adjust-subtitle-time-stop 200) 
:to-equal 200)
-                               (expect (save-excursion 
(subed-jump-to-subtitle-time-start)
-                                                                               
                                                (thing-at-point 'line)) 
:to-equal "00:01:00,900 --> 00:01:05,323\n")
-                               (expect (subed-adjust-subtitle-time-stop -100) 
:to-equal -100)
-                               (expect (save-excursion 
(subed-jump-to-subtitle-time-start)
-                                                                               
                                                (thing-at-point 'line)) 
:to-equal "00:01:00,900 --> 00:01:05,223\n")))
-    (describe "when enforcing boundaries with errors"
-      (describe "when decreasing start time"
-        (it "handles the first subtitle."
-          (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                                "Foo.\n"))
-                                               (let 
((subed-enforce-time-boundaries 'error))
-                                                       (expect 
subed-enforce-time-boundaries :to-equal 'error)
-                                                       (expect 
(subed-adjust-subtitle-time-start -999) :to-be -999)
-                                                       (expect 
(subed-subtitle-msecs-start) :to-be 1)
-                                                       (expect 
(subed-adjust-subtitle-time-start -1) :to-be -1)
-                                                       (expect 
(subed-subtitle-msecs-start) :to-be 0)
-                                                       (expect 
(subed-adjust-subtitle-time-start -1) :to-throw 'error))))
-        (it "handles a non-first subtitle."
-          (with-temp-srt-buffer
-                                               (insert (concat "1\n"
-                                                                               
                                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                                "Foo.\n\n"
-                                                                               
                                "2\n"
-                                                                               
                                "00:00:03,000 --> 00:00:04,000\n"
-                                                                               
                                "Bar.\n\n"))
-                                               (subed-jump-to-subtitle-id 2)
-                                               (let 
((subed-enforce-time-boundaries 'error)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       (expect 
(subed-adjust-subtitle-time-start -899) :to-be -899)
-                                                       (expect 
(subed-subtitle-msecs-start) :to-be 2101)
-                                                       (expect 
(subed-adjust-subtitle-time-start -1) :to-be -1)
-                                                       (expect 
(subed-subtitle-msecs-start) :to-be 2100)
-                                                       ;; report an error if 
it bumps up against a previous subtitle
-                                                       (expect 
(subed-adjust-subtitle-time-start -1) :to-throw 'error)
-                                                       (expect 
(subed-subtitle-msecs-start) :to-be 2100)))))
-      (it "increases start time."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:03,000 --> 00:00:04,000\n"
-                                                                               
                        "Bar.\n\n"))
-                                       (subed-jump-to-subtitle-id 2)
-                                       (let ((subed-enforce-time-boundaries 
'error)
-                                                               
(subed-subtitle-spacing 100))
-                                               (expect 
(subed-adjust-subtitle-time-start 999) :to-be 999)
-                                               (expect 
(subed-subtitle-msecs-start) :to-be 3999)
-                                               (expect 
(subed-adjust-subtitle-time-start 1) :to-be 1)
-                                               (expect 
(subed-subtitle-msecs-start) :to-be 4000)
-                                               (expect 
(subed-adjust-subtitle-time-start 1) :to-throw 'error)
-                                               (expect 
(subed-subtitle-msecs-start) :to-be 4000))))
-      (it "decreases stop time."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:03,000 --> 00:00:04,000\n"
-                                                                               
                        "Bar.\n\n"))
-                                       (subed-jump-to-subtitle-id 2)
-                                       (let ((subed-enforce-time-boundaries 
'error)
-                                                               
(subed-subtitle-spacing 100))
-                                               (expect 
(subed-adjust-subtitle-time-stop -999) :to-be -999)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-be 3001)
-                                               (expect 
(subed-adjust-subtitle-time-stop -1) :to-be -1)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-be 3000)
-                                               (expect 
(subed-adjust-subtitle-time-stop -1) :to-throw 'error)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-be 3000))))
-      (describe "when increasing stop time"
-        (it "increases the last subtitle."
-          (with-temp-srt-buffer
-                                               (insert (concat "1\n"
-                                                                               
                                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                                "Foo.\n\n"
-                                                                               
                                "2\n"
-                                                                               
                                "00:00:03,000 --> 00:00:04,000\n"
-                                                                               
                                "Bar.\n\n"))
-                                               (subed-jump-to-subtitle-id 2)
-                                               (expect 
(subed-adjust-subtitle-time-stop 1000000):to-be 1000000)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-be 1004000)))
-        (it "increases a non-last subtitle."
-          (with-temp-srt-buffer
-                                               (insert (concat "1\n"
-                                                                               
                                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                                "Foo.\n\n"
-                                                                               
                                "2\n"
-                                                                               
                                "00:00:03,000 --> 00:00:04,000\n"
-                                                                               
                                "Bar.\n\n"))
-                                               (subed-jump-to-subtitle-id 1)
-                                               (expect 
(subed-adjust-subtitle-time-stop 899) :to-be 899)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-be 2899)
-                                               (expect 
(subed-adjust-subtitle-time-stop 1) :to-be 1)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-be 2900)
-                                               (let 
((subed-enforce-time-boundaries 'error)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       (expect 
(subed-adjust-subtitle-time-stop 1) :to-throw 'error)
-                                                       (expect 
(subed-subtitle-msecs-stop) :to-be 2900)))))
-      (it "increases without undershooting the target time."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,000 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (subed-jump-to-subtitle-id 1)
-                                       (let ((subed-enforce-time-boundaries 
'error)
-                                                               
(subed-subtitle-spacing 100))
-                                               (expect 
(subed-adjust-subtitle-time-stop 1) :to-throw 'error)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal 2000))))
-      (it "increases without overshooting the target time."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,000 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (subed-jump-to-subtitle-id 2)
-                                       (let ((subed-enforce-time-boundaries 
'error)
-                                                               
(subed-subtitle-spacing 100))
-                                               (expect 
(subed-adjust-subtitle-time-start -1) :to-throw 'error)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal 2000))))
-      )
-    (describe "ignores negative duration if the second argument is truthy"
-      (it "when adjusting start time."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"))
-                                       (expect 
(subed-adjust-subtitle-time-start 2000 t) :to-be 2000)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 3000)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 2000)
-                                       (expect 
(subed-adjust-subtitle-time-start -500 t) :to-be -500)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 2500)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 2000)))
-      (it "when adjusting stop time."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"))
-                                       (expect 
(subed-adjust-subtitle-time-stop -1500 t) :to-be -1500)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 500)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 1000)
-                                       (expect 
(subed-adjust-subtitle-time-stop 200 t) :to-be 200)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 700)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 1000)))
-      )
-    (describe "ignores subtitle spacing if the second argument is truthy"
-      (it "when adjusting start time."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,200 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (subed-jump-to-subtitle-id 2)
-                                       (expect 
(subed-adjust-subtitle-time-start -150 nil t) :to-be -150)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-be 2050)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-be 2000)
-                                       (expect 
(subed-adjust-subtitle-time-start -51 nil t) :to-be -51)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-be 1999)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-be 2000)))
-      (it "when adjusting stop time."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,200 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (subed-jump-to-subtitle-id 1)
-                                       (expect 
(subed-adjust-subtitle-time-stop 150 nil t) :to-be 150)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-be 2150)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-be 2200)
-                                       (expect 
(subed-adjust-subtitle-time-stop 51 nil t) :to-be 51)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-be 2201)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-be 2200)))
-      )
-    (describe "ignores negative duration if subed-enforce-time-boundaries is 
falsy"
-      (it "when adjusting start time."
-        (with-temp-srt-buffer
-                                       (setq-local 
subed-enforce-time-boundaries nil)
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"))
-                                       (expect 
(subed-adjust-subtitle-time-start 2000) :to-be 2000)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 3000)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 2000)
-                                       (expect 
(subed-adjust-subtitle-time-start -500) :to-be -500)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 2500)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 2000)))
-      (it "when adjusting stop time."
-        (with-temp-srt-buffer
-                                       (setq-local 
subed-enforce-time-boundaries nil)
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"))
-                                       (expect 
(subed-adjust-subtitle-time-stop -1500) :to-be -1500)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 500)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 1000)
-                                       (expect 
(subed-adjust-subtitle-time-stop 200) :to-be 200)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 700)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 1000)))
-      )
-    (describe "ignores subtitle spacing if subed-enforce-time-boundaries is 
falsy"
-      (it "when adjusting start time."
-        (with-temp-srt-buffer
-                                       (setq-local 
subed-enforce-time-boundaries nil)
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,200 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (subed-jump-to-subtitle-id 2)
-                                       (expect 
(subed-adjust-subtitle-time-start -150) :to-be -150)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-be 2050)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-be 2000)
-                                       (expect 
(subed-adjust-subtitle-time-start -51) :to-be -51)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-be 1999)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-be 2000)))
-      (it "when adjusting stop time."
-        (with-temp-srt-buffer
-                                       (setq-local 
subed-enforce-time-boundaries nil)
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,200 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (subed-jump-to-subtitle-id 1)
-                                       (expect 
(subed-adjust-subtitle-time-stop 150) :to-be 150)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-be 2150)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-be 2200)
-                                       (expect 
(subed-adjust-subtitle-time-stop 51) :to-be 51)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-be 2201)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-be 2200)))
-      )
-    (describe "prevents negative time even if subed-enforce-time-boundaries is 
falsy"
-      (it "when adjusting start time."
-        (with-temp-srt-buffer
-                                       (setq-local 
subed-enforce-time-boundaries nil)
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"))
-                                       (expect 
(subed-adjust-subtitle-time-start -1000) :to-be -1000)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 0)
-                                       (expect 
(subed-adjust-subtitle-time-start -1) :to-be 0)
-                                       (expect (subed-subtitle-msecs-start) 
:to-be 0)))
-      (it "when adjusting stop time."
-        (with-temp-srt-buffer
-                                       (setq-local 
subed-enforce-time-boundaries nil)
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"))
-                                       (expect 
(subed-adjust-subtitle-time-stop -2000) :to-be -2000)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 0)
-                                       (expect 
(subed-adjust-subtitle-time-stop -1) :to-be nil)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-be 0)))
-      )
-    (it "does nothing if no timestamp can be found."
-      (with-temp-srt-buffer
-                               (insert "foo")
-                               (goto-char (point-min))
-                               (expect (subed-adjust-subtitle-time-start 123) 
:to-be nil)
-                               (expect (buffer-string) :to-equal "foo")
-                               (expect (subed-adjust-subtitle-time-start -123) 
:to-be nil)
-                               (expect (buffer-string) :to-equal "foo")))
-    )
-
-  (describe "Copy start/stop time from player"
-    :var (subed-mpv-playback-position)
-    (it "does nothing in an empty buffer."
-      (with-temp-srt-buffer
-                               (let ((subed-mpv-playback-position 12345))
-                                       (expect 
(subed-copy-player-pos-to-start-time) :to-be nil)
-                                       (expect 
(subed-copy-player-pos-to-stop-time) :to-be nil)
-                                       (expect (buffer-string) :to-equal ""))))
-    (it "does nothing if player position is unknown."
-      (with-temp-srt-buffer
-                               (insert (concat "1\n"
-                                                                               
                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                "Foo.\n"))
-                               (let ((subed-mpv-playback-position nil))
-                                       (expect 
(subed-copy-player-pos-to-start-time) :to-be nil)
-                                       (expect 
(subed-copy-player-pos-to-stop-time) :to-be nil)
-                                       (expect (buffer-string) :to-equal 
(concat "1\n"
-                                                                               
                                                                                
                                                "00:00:01,000 --> 
00:00:02,000\n"
-                                                                               
                                                                                
                                                "Foo.\n")))))
-    (it "sets start/stop time when possible."
-      (with-temp-srt-buffer
-                               (insert (concat "1\n"
-                                                                               
                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                "Foo.\n"))
-                               (let ((subed-mpv-playback-position (+ 60000 
2000 123))
-                                                       
(subed-enforce-time-boundaries nil))
-                                       (expect 
(subed-copy-player-pos-to-start-time) :to-be subed-mpv-playback-position)
-                                       (expect (buffer-string) :to-equal 
(concat "1\n"
-                                                                               
                                                                                
                                                "00:01:02,123 --> 
00:00:02,000\n"
-                                                                               
                                                                                
                                                "Foo.\n")))
-                               (let ((subed-mpv-playback-position (+ 60000 
5000 456))
-                                                       
(subed-enforce-time-boundaries nil))
-                                       (expect 
(subed-copy-player-pos-to-stop-time) :to-be subed-mpv-playback-position)
-                                       (expect (buffer-string) :to-equal 
(concat "1\n"
-                                                                               
                                                                                
                                                "00:01:02,123 --> 
00:01:05,456\n"
-                                                                               
                                                                                
                                                "Foo.\n")))))
-    (it "runs the appropriate hook."
-      (with-temp-srt-buffer
-                               (insert (concat "1\n"
-                                                                               
                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                "Foo.\n"))
-                               (let ((foo (setf (symbol-function 'foo) (lambda 
(msecs) ())))
-                                                       
(subed-enforce-time-boundaries nil))
-                                       (spy-on 'foo)
-                                       (add-hook 
'subed-subtitle-time-adjusted-hook 'foo)
-                                       (let ((subed-mpv-playback-position (+ 
60000 2000 123)))
-                                               (expect 
(subed-copy-player-pos-to-start-time) :to-be subed-mpv-playback-position)
-                                               (expect (buffer-string) 
:to-equal (concat "1\n"
-                                                                               
                                                                                
                                                        "00:01:02,123 --> 
00:00:02,000\n"
-                                                                               
                                                                                
                                                        "Foo.\n"))
-                                               (expect (spy-calls-args-for 
'foo 0) :to-equal `(,(+ 60000 2000 123)))
-                                               (expect (spy-calls-count 'foo) 
:to-equal 1)))
-                               (let ((subed-mpv-playback-position (+ 60000 
5000 456)))
-                                       (expect 
(subed-copy-player-pos-to-stop-time) :to-be subed-mpv-playback-position)
-                                       (expect (buffer-string) :to-equal 
(concat "1\n"
-                                                                               
                                                                                
                                                "00:01:02,123 --> 
00:01:05,456\n"
-                                                                               
                                                                                
                                                "Foo.\n"))
-                                       (expect (spy-calls-args-for 'foo 0) 
:to-equal `(,(+ 60000 2000 123)))
-                                       (expect (spy-calls-count 'foo) 
:to-equal 2)))
-      (remove-hook 'subed-subtitle-time-adjusted-hook 'foo))
-    )
-
-  (describe "Jumping"
-    (describe "to subtitle text given msecs"
-      (it "finds the right subtitle"
-        (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (subed-jump-to-subtitle-text-at-msecs 
122234)
-                                       (expect (looking-at "Bar\\.") :to-equal 
t)))))
-  (describe "Moving"
-    (it "adjusts start and stop time by the same amount."
-      (with-temp-srt-buffer
-                               (insert (concat "1\n"
-                                                                               
                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                "Foo.\n"))
-                               (let ((orig-point (subed-jump-to-subtitle-text 
1)))
-                                       (subed-move-subtitle-forward 100)
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 1100)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 2100)
-                                       (subed-move-subtitle-backward 200)
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 900)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 1900)
-                                       (expect (point) :to-equal orig-point))))
-               (describe "when clipping to time boundaries"
-                       (it "adjusts start and stop time by the same amount 
when bumping into next subtitle."
-                               (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:01,600\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,000 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-id 1))
-                                                               
(subed-subtitle-spacing 100)
-                                                               
(subed-enforce-time-boundaries 'clip))
-                                               (subed-move-subtitle-forward 
1000)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal 1300)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal 1900)
-                                               (expect (point) :to-equal 
orig-point))))
-                       (it "adjusts start and stop time by the same amount 
when bumping into previous subtitle."
-                               (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:01,600\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,000 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-id 2))
-                                                               
(subed-subtitle-spacing 100)
-                                                               
(subed-enforce-time-boundaries 'clip))
-                                               (subed-move-subtitle-backward 
1000)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal 1700)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal 2700)
-                                               (expect (point) :to-equal 
orig-point)))))
-               (describe "when time boundaries are enforced with errors"
-                       (it "does not adjust anything if subtitle cannot be 
moved forward at all."
-                               (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,000 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-id 1))
-                                                               
(subed-enforce-time-boundaries 'error))
-                                               (expect 
(subed-move-subtitle-forward 1) :to-throw 'error)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3000)
-                                               (expect (point) :to-equal 
orig-point))))
-                       (it "does not adjust anything if subtitle cannot be 
moved backward at all."
-                               (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:02,000 --> 00:00:03,000\n"
-                                                                               
                        "Bar.\n"))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-id 2))
-                                                               
(subed-enforce-time-boundaries 'error))
-                                               (expect 
(subed-move-subtitle-backward 1) :to-throw 'error)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3000)
-                                               (expect (point) :to-equal 
orig-point)))))
-    (describe "adjusts subtitles in the active region,"
-      (it "excluding the first subtitle."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:03,000 --> 00:00:04,000\n"
-                                                                               
                        "Bar.\n\n"
-                                                                               
                        "3\n"
-                                                                               
                        "00:00:05,000 --> 00:00:06,000\n"
-                                                                               
                        "Baz.\n"))
-                                       (setq mark-active t)
-                                       (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-text 2))
-                                       (spy-on 'region-end :and-return-value 
(subed-jump-to-subtitle-time-start 3))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-text 2)))
-                                               (subed-move-subtitle-forward 
100)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 3100)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 4100)
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal 5100)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 6100)
-                                               (expect (point) :to-equal 
orig-point)
-                                               (subed-move-subtitle-backward 
200)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 2900)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3900)
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal 4900)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 5900)
-                                               (expect (point) :to-equal 
orig-point))))
-      (it "excluding the last subtitle."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:03,000 --> 00:00:04,000\n"
-                                                                               
                        "Bar.\n\n"
-                                                                               
                        "3\n"
-                                                                               
                        "00:00:05,000 --> 00:00:06,000\n"
-                                                                               
                        "Baz.\n"))
-                                       (setq mark-active t)
-                                       (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-text 1))
-                                       (spy-on 'region-end :and-return-value 
(subed-jump-to-subtitle-time-stop 2))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-time-stop 3)))
-                                               (subed-move-subtitle-forward 
500)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 1500)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2500)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 3500)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 4500)
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal 5000)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 6000)
-                                               (expect (point) :to-equal 
orig-point)
-                                               (subed-move-subtitle-backward 
300)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 1200)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2200)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 3200)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 4200)
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal 5000)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 6000)
-                                               (expect (point) :to-equal 
orig-point))))
-                       (describe "when ignoring time boundaries"
-                               (it "does not change spacing between subtitles 
when moving subtitles forward."
-                                       (with-temp-srt-buffer
-                                               (insert "1\n"
-                                                                               
"00:00:01,000 --> 00:00:02,000\n"
-                                                                               
"Foo.\n\n"
-                                                                               
"2\n"
-                                                                               
"00:00:10,000 --> 00:00:11,000\n"
-                                                                               
"Bar.\n\n"
-                                                                               
"3\n"
-                                                                               
"00:00:12,000 --> 00:00:13,000\n"
-                                                                               
"Baz.\n")
-                                               (setq mark-active t)
-                                               (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-id 1))
-                                               (spy-on 'region-end 
:and-return-value (subed-jump-to-subtitle-text 2))
-                                               (let ((orig-point 
(subed-jump-to-subtitle-time-start 1))
-                                                                       
(subed-enforce-time-boundaries nil))
-                                                       
(subed-move-subtitle-forward 2000)
-                                                       (expect 
(subed-subtitle-msecs-start 1) :to-equal 3000)
-                                                       (expect 
(subed-subtitle-msecs-stop 1) :to-equal 4000)
-                                                       (expect 
(subed-subtitle-msecs-start 2) :to-equal 12000)
-                                                       (expect 
(subed-subtitle-msecs-stop 2) :to-equal 13000)
-                                                       (expect 
(subed-subtitle-msecs-start 3) :to-equal 12000)
-                                                       (expect 
(subed-subtitle-msecs-stop 3) :to-equal 13000)
-                                                       (expect (point) 
:to-equal orig-point))))
-                               (it "does not change spacing between subtitles 
when moving subtitles backward."
-                                       (with-temp-srt-buffer
-                                               (insert (concat "1\n"
-                                                                               
                                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                                "Foo.\n\n"
-                                                                               
                                "2\n"
-                                                                               
                                "00:00:03,000 --> 00:00:04,000\n"
-                                                                               
                                "Bar.\n\n"
-                                                                               
                                "3\n"
-                                                                               
                                "00:00:10,000 --> 00:00:11,000\n"
-                                                                               
                                "Baz.\n"))
-                                               (setq mark-active t)
-                                               (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-id 2))
-                                               (spy-on 'region-end 
:and-return-value (subed-jump-to-subtitle-text 3))
-                                               (let ((orig-point 
(subed-jump-to-subtitle-time-start 2))
-                                                                       
(subed-enforce-time-boundaries nil))
-                                                       
(subed-move-subtitle-backward 1000)
-                                                       (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-                                                       (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                                       (expect 
(subed-subtitle-msecs-start 2) :to-equal 2000)
-                                                       (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3000)
-                                                       (expect 
(subed-subtitle-msecs-start 3) :to-equal 9000)
-                                                       (expect 
(subed-subtitle-msecs-stop 3) :to-equal 10000)
-                                                       (expect (point) 
:to-equal orig-point))))))
-               ;; What does it mean by not having space left?
-    ;; (describe "unless there is no space left"
-               ;;      (describe "when moving forward"
-               ;;              (it "updates the start time."
-               ;;                      (with-temp-srt-buffer
-               ;;                              (insert (concat "1\n"
-               ;;                                                              
                                "00:00:01,000 --> 00:00:02,000\n"
-               ;;                                                              
                                "Foo.\n\n"
-               ;;                                                              
                                "2\n"
-               ;;                                                              
                                "00:00:10,000 --> 00:00:11,000\n"
-               ;;                                                              
                                "Bar.\n\n"
-               ;;                                                              
                                "3\n"
-               ;;                                                              
                                "00:00:11,000 --> 00:00:12,000\n"
-               ;;                                                              
                                "Baz.\n"))
-               ;;                              (setq mark-active t)
-               ;;                              (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-id 1))
-               ;;                              (spy-on 'region-end 
:and-return-value (subed-jump-to-subtitle-text 2))
-               ;;                              (let ((orig-point 
(subed-jump-to-subtitle-text 1)))
-               ;;                                      
(subed-move-subtitle-forward 1)
-               ;;                                      (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-               ;;                                      (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-               ;;                                      (expect 
(subed-subtitle-msecs-start 2) :to-equal 10000)
-               ;;                                      (expect 
(subed-subtitle-msecs-stop 2) :to-equal 11000)
-               ;;                                      (expect 
(subed-subtitle-msecs-start 3) :to-equal 11000)
-               ;;                                      (expect 
(subed-subtitle-msecs-stop 3) :to-equal 12000)
-               ;;                                      (expect (point) 
:to-equal orig-point)))))
-    ;;   (it "when moving backward."
-    ;;     (with-temp-srt-buffer
-               ;;                      (insert (concat "1\n"
-               ;;                                                              
                        "00:00:01,000 --> 00:00:02,000\n"
-               ;;                                                              
                        "Foo.\n\n"
-               ;;                                                              
                        "2\n"
-               ;;                                                              
                        "00:00:02,000 --> 00:00:03,000\n"
-               ;;                                                              
                        "Bar.\n\n"
-               ;;                                                              
                        "3\n"
-               ;;                                                              
                        "00:00:11,000 --> 00:00:12,000\n"
-               ;;                                                              
                        "Baz.\n"))
-               ;;                      (setq mark-active t)
-               ;;                      (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-id 2))
-               ;;                      (spy-on 'region-end :and-return-value 
(subed-jump-to-subtitle-text 3))
-               ;;                      (let ((orig-point 
(subed-jump-to-subtitle-id 3)))
-               ;;                              (subed-move-subtitle-backward 1)
-               ;;                              (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-               ;;                              (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-               ;;                              (expect 
(subed-subtitle-msecs-start 2) :to-equal 2000)
-               ;;                              (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3000)
-               ;;                              (expect 
(subed-subtitle-msecs-start 3) :to-equal 11000)
-               ;;                              (expect 
(subed-subtitle-msecs-stop 3) :to-equal 12000)
-               ;;                              (expect (point) :to-equal 
orig-point))))
-    ;;   )
-    (describe "ignoring spacing for non-leading subtitles"
-      (it "when moving forward."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:00,000 --> 00:00:01,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:01,050 --> 00:00:02,000\n"
-                                                                               
                        "Bar.\n\n"
-                                                                               
                        "3\n"
-                                                                               
                        "00:00:05,000 --> 00:00:6,000\n"
-                                                                               
                        "Baz.\n"))
-                                       (setq mark-active t)
-                                       (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-id 1))
-                                       (spy-on 'region-end :and-return-value 
(subed-jump-to-subtitle-text 2))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-time-start 3)))
-                                               (subed-move-subtitle-forward 
1000)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 2050)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3000)
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal 5000)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 6000)
-                                               (expect (point) :to-equal 
orig-point))))
-      (it "when moving backward."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:04,000 --> 00:00:05,000\n"
-                                                                               
                        "Bar.\n\n"
-                                                                               
                        "3\n"
-                                                                               
                        "00:00:05,000 --> 00:00:05,000\n"
-                                                                               
                        "Baz.\n"))
-                                       (setq mark-active t)
-                                       (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-id 2))
-                                       (spy-on 'region-end :and-return-value 
(subed-jump-to-subtitle-text 3))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-time-stop 1)))
-                                               (subed-move-subtitle-backward 
1000)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 3000)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 4000)
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal 4000)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 4000)
-                                               (expect (point) :to-equal 
orig-point))))
-      )
-    (describe "ignoring overlapping subtitles"
-      (it "when moving forward."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:01,500\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:01,300 --> 00:00:02,000\n"
-                                                                               
                        "Bar.\n\n"
-                                                                               
                        "3\n"
-                                                                               
                        "00:00:05,000 --> 00:00:6,000\n"
-                                                                               
                        "Baz.\n"))
-                                       (setq mark-active t)
-                                       (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-id 1))
-                                       (spy-on 'region-end :and-return-value 
(subed-jump-to-subtitle-text 2))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-text 2)))
-                                               (subed-move-subtitle-forward 
1000)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2500)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 2300)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3000)
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal 5000)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 6000)
-                                               (expect (point) :to-equal 
orig-point))))
-      (it "when moving backward."
-        (with-temp-srt-buffer
-                                       (insert (concat "1\n"
-                                                                               
                        "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                        "Foo.\n\n"
-                                                                               
                        "2\n"
-                                                                               
                        "00:00:04,500 --> 00:00:04,000\n"
-                                                                               
                        "Bar.\n\n"
-                                                                               
                        "3\n"
-                                                                               
                        "00:00:04,500 --> 00:00:04,490\n"
-                                                                               
                        "Baz.\n"))
-                                       (setq mark-active t)
-                                       (spy-on 'region-beginning 
:and-return-value (subed-jump-to-subtitle-id 2))
-                                       (spy-on 'region-end :and-return-value 
(subed-jump-to-subtitle-text 3))
-                                       (let ((orig-point 
(subed-jump-to-subtitle-text 1)))
-                                               (subed-move-subtitle-backward 
1000)
-                                               (expect 
(subed-subtitle-msecs-start 1) :to-equal 1000)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 3500)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3000)
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal 3500)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 3490)
-                                               (expect (point) :to-equal 
orig-point))))
-      )
-    (it "ignoring start time being larger than stop time."
-      (with-temp-srt-buffer
-                               (insert (concat "1\n"
-                                                                               
                "00:00:01,500 --> 00:00:01,400\n"
-                                                                               
                "Foo.\n\n"
-                                                                               
                "2\n"
-                                                                               
                "00:00:02,500 --> 00:00:02,499\n"
-                                                                               
                "Bar.\n\n"
-                                                                               
                "3\n"
-                                                                               
                "00:00:05,000 --> 00:00:06,000\n"
-                                                                               
                "Bar.\n"))
-                               (setq mark-active t)
-                               (spy-on 'region-beginning :and-return-value 
(subed-jump-to-subtitle-text 1))
-                               (spy-on 'region-end :and-return-value 
(subed-jump-to-subtitle-time-start 2))
-                               (let ((orig-point 
(subed-jump-to-subtitle-time-stop 1)))
-                                       (subed-move-subtitle-forward 1000)
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 2500)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 2400)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-equal 3500)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 3499)
-                                       (expect (subed-subtitle-msecs-start 3) 
:to-equal 5000)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 6000)
-                                       (expect (point) :to-equal orig-point)
-                                       (subed-move-subtitle-backward 500)
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 2000)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 1900)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-equal 3000)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 2999)
-                                       (expect (subed-subtitle-msecs-start 3) 
:to-equal 5000)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 6000)
-                                       (expect (point) :to-equal orig-point))))
-    (it "ignoring stop time being smaller than start time."
-      (with-temp-srt-buffer
-                               (insert (concat "1\n"
-                                                                               
                "00:00:01,000 --> 00:00:02,000\n"
-                                                                               
                "Foo.\n\n"
-                                                                               
                "2\n"
-                                                                               
                "00:00:04,100 --> 00:00:04,099\n"
-                                                                               
                "Bar.\n\n"
-                                                                               
                "3\n"
-                                                                               
                "00:00:05,500 --> 00:00:05,000\n"
-                                                                               
                "Bar.\n"))
-                               (setq mark-active t)
-                               (spy-on 'region-beginning :and-return-value 
(subed-jump-to-subtitle-text 2))
-                               (spy-on 'region-end :and-return-value 
(subed-jump-to-subtitle-time-start 3))
-                               (let ((orig-point (subed-jump-to-subtitle-text 
1)))
-                                       (subed-move-subtitle-forward 1000)
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 1000)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 2000)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-equal 5100)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 5099)
-                                       (expect (subed-subtitle-msecs-start 3) 
:to-equal 6500)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 6000)
-                                       (expect (point) :to-equal orig-point)
-                                       (subed-move-subtitle-backward 500)
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 1000)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 2000)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-equal 4600)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 4599)
-                                       (expect (subed-subtitle-msecs-start 3) 
:to-equal 6000)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 5500)
-                                       (expect (point) :to-equal orig-point))))
-    (it "disables subtitle replay while moving subtitles."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (subed-enable-replay-adjusted-subtitle :quiet)
-                               (spy-on 'subed-enable-replay-adjusted-subtitle 
:and-call-through)
-                               (spy-on 'subed-disable-replay-adjusted-subtitle 
:and-call-through)
-                               (spy-on 'subed-adjust-subtitle-time-start 
:and-call-fake
-                                                               (lambda (msecs 
&optional a b) (expect (subed-replay-adjusted-subtitle-p) :to-be nil)))
-                               (spy-on 'subed-adjust-subtitle-stop 
:and-call-fake
-                                                               (lambda (msecs 
&optional a b) (expect (subed-replay-adjusted-subtitle-p) :to-be nil)))
-                               (subed-move-subtitle-forward 100)
-                               (expect 'subed-disable-replay-adjusted-subtitle 
:to-have-been-called-times 1)
-                               (expect 'subed-enable-replay-adjusted-subtitle 
:to-have-been-called-times 1)
-                               (subed-move-subtitle-backward 100)
-                               (expect 'subed-disable-replay-adjusted-subtitle 
:to-have-been-called-times 2)
-                               (expect 'subed-enable-replay-adjusted-subtitle 
:to-have-been-called-times 2)))
-    (it "does not enable subtitle replay afterwards if it is disabled."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (subed-disable-replay-adjusted-subtitle :quiet)
-                               (spy-on 'subed-enable-replay-adjusted-subtitle 
:and-call-through)
-                               (spy-on 'subed-disable-replay-adjusted-subtitle 
:and-call-through)
-                               (spy-on 'subed-adjust-subtitle-time-start 
:and-call-fake
-                                                               (lambda (msecs 
&optional a b) (expect (subed-replay-adjusted-subtitle-p) :to-be nil)))
-                               (spy-on 'subed-adjust-subtitle-stop 
:and-call-fake
-                                                               (lambda (msecs 
&optional a b) (expect (subed-replay-adjusted-subtitle-p) :to-be nil)))
-                               (subed-move-subtitle-forward 100)
-                               (expect 'subed-disable-replay-adjusted-subtitle 
:to-have-been-called-times 1)
-                               (expect 'subed-enable-replay-adjusted-subtitle 
:to-have-been-called-times 0)
-                               (subed-move-subtitle-backward 100)
-                               (expect 'subed-disable-replay-adjusted-subtitle 
:to-have-been-called-times 2)
-                               (expect 'subed-enable-replay-adjusted-subtitle 
:to-have-been-called-times 0)))
-    (it "seeks player to current subtitle if region is not active."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (spy-on 'subed-replay-adjusted-subtitle-p 
:and-return-value t)
-                               (spy-on 'subed-mpv-jump)
-                               (subed-move-subtitle-forward 100)
-                               (expect 'subed-mpv-jump 
:to-have-been-called-times 1)
-                               (expect 'subed-mpv-jump 
:to-have-been-called-with 183550)
-                               (subed-move-subtitle-backward 200)
-                               (expect 'subed-mpv-jump 
:to-have-been-called-times 2)
-                               (expect 'subed-mpv-jump 
:to-have-been-called-with 183350)))
-    (it "seeks player to first subtitle in active region."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (let ((beg 15)
-                                                       (end (point-max)))
-                                       (setq mark-active t)
-                                       (spy-on 'region-beginning 
:and-return-value beg)
-                                       (spy-on 'region-end :and-return-value 
end)
-                                       (spy-on 
'subed-replay-adjusted-subtitle-p :and-return-value t)
-                                       (spy-on 'subed-mpv-jump)
-                                       (subed-move-subtitle-forward 100)
-                                       (expect 'subed-mpv-jump 
:to-have-been-called-times 1)
-                                       (expect 'subed-mpv-jump 
:to-have-been-called-with '61100)
-                                       (subed-move-subtitle-backward 300)
-                                       (expect 'subed-mpv-jump 
:to-have-been-called-times 2)
-                                       (expect 'subed-mpv-jump 
:to-have-been-called-with '60800)))))
-
-  (describe "Inserting evenly spaced"
-    (describe "in an empty buffer,"
-      (describe "appending"
-        (it "a single subtile."
-          (cl-loop for arg in (list nil 1) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (expect (subed-insert-subtitle arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:00,000 
--> 00:00:01,000\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtiles."
-          (cl-loop for arg in (list 2) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (expect (subed-insert-subtitle arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:00,000 
--> 00:00:01,000\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:00:01,100 
--> 00:00:02,100\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      (describe "prepending"
-        (it "a single subtile."
-          (cl-loop for arg in (list '- -1 (list 4)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (expect (subed-insert-subtitle arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:00,000 
--> 00:00:01,000\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtiles."
-          (cl-loop for arg in (list -2 (list -16)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (expect (subed-insert-subtitle arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:00,000 
--> 00:00:01,000\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:00:01,100 
--> 00:00:02,100\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      )
-    (describe "in a non-empty buffer"
-      (describe "prepending between subtitles"
-        (it "a single subtitle."
-          (cl-loop for arg in (list '- -1 (list 4)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n\n"
-                                     "2\n"
-                                     "00:02:00,000 --> 00:02:01,000\n"
-                                     "Bar.\n"))
-                     (subed-jump-to-subtitle-text 2)
-                     (expect (subed-insert-subtitle arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:30,000 
--> 00:01:31,000\n"
-                                                               "\n\n"
-                                                               "2\n"
-                                                               "00:02:00,000 
--> 00:02:01,000\n"
-                                                               "Bar.\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtitles."
-          (cl-loop for arg in (list -2 (list 16)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n\n"
-                                     "2\n"
-                                     "00:02:00,000 --> 00:02:01,000\n"
-                                     "Bar.\n"))
-                     (subed-jump-to-subtitle-text 2)
-                     (expect (subed-insert-subtitle arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:20,000 
--> 00:01:21,000\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:01:40,000 
--> 00:01:41,000\n"
-                                                               "\n\n"
-                                                               "2\n"
-                                                               "00:02:00,000 
--> 00:02:01,000\n"
-                                                               "Bar.\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      (describe "appending between subtitles"
-        (it "a single subtitle."
-          (cl-loop for arg in (list nil 1) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n\n"
-                                     "2\n"
-                                     "00:02:00,000 --> 00:02:01,000\n"
-                                     "Bar.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:30,000 
--> 00:01:31,000\n"
-                                                               "\n\n"
-                                                               "2\n"
-                                                               "00:02:00,000 
--> 00:02:01,000\n"
-                                                               "Bar.\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtitles."
-          (cl-loop for arg in (list 2) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n\n"
-                                     "2\n"
-                                     "00:02:00,000 --> 00:02:01,000\n"
-                                     "Bar.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:20,000 
--> 00:01:21,000\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:01:40,000 
--> 00:01:41,000\n"
-                                                               "\n\n"
-                                                               "2\n"
-                                                               "00:02:00,000 
--> 00:02:01,000\n"
-                                                               "Bar.\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      (describe "prepending to the first subtitle"
-        (it "a single subtitle."
-          (cl-loop for arg in (list '- -1 (list 4)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:01:00,000 --> 00:01:01,000\n"
-                                     "Foo.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:30,000 
--> 00:00:31,000\n"
-                                                               "\n\n"
-                                                               "1\n"
-                                                               "00:01:00,000 
--> 00:01:01,000\n"
-                                                               "Foo.\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtitles."
-          (cl-loop for arg in (list -2 (list 16)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:01:00,000 --> 00:01:01,000\n"
-                                     "Foo.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:20,000 
--> 00:00:21,000\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:00:40,000 
--> 00:00:41,000\n"
-                                                               "\n\n"
-                                                               "1\n"
-                                                               "00:01:00,000 
--> 00:01:01,000\n"
-                                                               "Foo.\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      (describe "appending to the last subtitle"
-        (it "a single subtitle."
-          (cl-loop for arg in (list nil 1) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:00,100 
--> 00:01:01,100\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtitles."
-          (cl-loop for arg in (list 2) do
-                   (with-temp-srt-buffer
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n"))
-                     (subed-jump-to-subtitle-text 3)
-                     (expect (subed-insert-subtitle arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:00,100 
--> 00:01:01,100\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:01:01,200 
--> 00:01:02,200\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 71))))
-        )
-      (describe "when there is not enough time for the subtitles"
-        (describe "to append"
-          (it "a single subtitle."
-            (cl-loop for arg in (list nil 1) do
-                     (with-temp-srt-buffer
-                       (spy-on 'subed-regenerate-ids-soon)
-                       (insert (concat "1\n"
-                                       "00:00:59,000 --> 00:01:00,000\n"
-                                       "Foo.\n\n"
-                                       "2\n"
-                                       "00:01:00,600 --> 00:01:02,000\n"
-                                       "Foo.\n"))
-                       (subed-jump-to-subtitle-text 1)
-                       (expect (subed-insert-subtitle arg) :to-equal 71)
-                       (expect (buffer-string) :to-equal (concat "1\n"
-                                                                 "00:00:59,000 
--> 00:01:00,000\n"
-                                                                 "Foo.\n\n"
-                                                                 "0\n"
-                                                                 "00:01:00,100 
--> 00:01:00,500\n"
-                                                                 "\n\n"
-                                                                 "2\n"
-                                                                 "00:01:00,600 
--> 00:01:02,000\n"
-                                                                 "Foo.\n"))
-                       (expect (point) :to-equal 71)
-                       (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                       (spy-calls-reset 'subed-regenerate-ids-soon))))
-          (it "multiple subtitles."
-            (cl-loop for arg in (list 2) do
-                     (with-temp-srt-buffer
-                       (spy-on 'subed-regenerate-ids-soon)
-                       (insert (concat "1\n"
-                                       "00:00:59,000 --> 00:01:00,000\n"
-                                       "Foo.\n\n"
-                                       "2\n"
-                                       "00:01:00,600 --> 00:01:02,000\n"
-                                       "Foo.\n"))
-                       (subed-jump-to-subtitle-text 1)
-                       (expect (subed-insert-subtitle arg) :to-equal 71)
-                       (expect (buffer-string) :to-equal (concat "1\n"
-                                                                 "00:00:59,000 
--> 00:01:00,000\n"
-                                                                 "Foo.\n\n"
-                                                                 "0\n"
-                                                                 "00:01:00,100 
--> 00:01:00,250\n"
-                                                                 "\n\n"
-                                                                 "0\n"
-                                                                 "00:01:00,350 
--> 00:01:00,500\n"
-                                                                 "\n\n"
-                                                                 "2\n"
-                                                                 "00:01:00,600 
--> 00:01:02,000\n"
-                                                                 "Foo.\n"))
-                       (expect (point) :to-equal 71)
-                       (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                       (spy-calls-reset 'subed-regenerate-ids-soon))))
-          )
-        (describe "to prepend"
-          (describe "between subtitles"
-            (it "a single subtitle."
-              (cl-loop for arg in (list '- -1 (list 4)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:57,000 --> 00:00:59,100\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,000 --> 00:01:02,000\n"
-                                         "Foo.\n"))
-                         (subed-jump-to-subtitle-text 2)
-                         (expect (subed-insert-subtitle arg) :to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:57,000 --> 00:00:59,100\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:00:59,200 --> 00:00:59,900\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,000 --> 00:01:02,000\n"
-                                                                   "Foo.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            (it "multiple subtitles."
-              (cl-loop for arg in (list -2 (list 16)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:57,000 --> 00:00:59,100\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,000 --> 00:01:02,000\n"
-                                         "Foo.\n"))
-                         (subed-jump-to-subtitle-text 2)
-                         (expect (subed-insert-subtitle arg) :to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:57,000 --> 00:00:59,100\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:00:59,200 --> 00:00:59,500\n"
-                                                                   "\n\n"
-                                                                   "0\n"
-                                                                   
"00:00:59,600 --> 00:00:59,900\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,000 --> 00:01:02,000\n"
-                                                                   "Foo.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            )
-          (describe "before the first subtitle"
-            (it "a single subtitle."
-              (cl-loop for arg in (list '- -1 (list 4)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:00,500 --> 00:00:02,000\n"
-                                         "Foo.\n"))
-                         (subed-jump-to-subtitle-text 1)
-                         (expect (subed-insert-subtitle arg) :to-equal 33)
-                         (expect (buffer-string) :to-equal (concat "0\n"
-                                                                   
"00:00:00,100 --> 00:00:00,400\n"
-                                                                   "\n\n"
-                                                                   "1\n"
-                                                                   
"00:00:00,500 --> 00:00:02,000\n"
-                                                                   "Foo.\n"))
-                         (expect (point) :to-equal 33)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            (it "multiple subtitles."
-              (cl-loop for arg in (list -2 (list 16)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:00,600 --> 00:00:01,500\n"
-                                         "Foo.\n"))
-                         (subed-jump-to-subtitle-text 1)
-                         (expect (subed-insert-subtitle arg) :to-equal 33)
-                         (expect (buffer-string) :to-equal (concat "0\n"
-                                                                   
"00:00:00,100 --> 00:00:00,250\n"
-                                                                   "\n\n"
-                                                                   "0\n"
-                                                                   
"00:00:00,350 --> 00:00:00,500\n"
-                                                                   "\n\n"
-                                                                   "1\n"
-                                                                   
"00:00:00,600 --> 00:00:01,500\n"
-                                                                   "Foo.\n"))
-                         (expect (point) :to-equal 33)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            )
-          )
-        )
-      (describe "when there is not enough time for spacing"
-        (describe "between subtitles"
-          (describe "when prepending"
-            (it "a single subtitle."
-              (cl-loop for arg in (list '- -1 (list 4)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:55,000 --> 00:00:59,950\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,000 --> 00:01:02,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 2)
-                         (expect (subed-insert-subtitle arg) :to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:55,000 --> 00:00:59,950\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:00:59,950 --> 00:00:59,950\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,000 --> 00:01:02,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            (it "multiple subtitles."
-              (cl-loop for arg in (list -2 (list 16)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:57,000 --> 00:00:59,999\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,000 --> 00:01:02,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 2)
-                         (expect (subed-insert-subtitle arg) :to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:57,000 --> 00:00:59,999\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:00:59,999 --> 00:00:59,999\n"
-                                                                   "\n\n"
-                                                                   "0\n"
-                                                                   
"00:00:59,999 --> 00:00:59,999\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,000 --> 00:01:02,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            )
-          (describe "when appending"
-            (it "a single subtitle."
-              (cl-loop for arg in (list nil 1) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:59,000 --> 00:01:00,000\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,010 --> 00:01:02,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 1)
-                         (expect (subed-insert-subtitle arg) :to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:59,000 --> 00:01:00,000\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,000 --> 00:01:00,000\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,010 --> 00:01:02,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            (it "multiple subtitles."
-              (cl-loop for arg in (list 2) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:59,000 --> 00:01:00,000\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,100 --> 00:01:02,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 1)
-                         (expect (subed-insert-subtitle arg) :to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:59,000 --> 00:01:00,000\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,000 --> 00:01:00,000\n"
-                                                                   "\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,000 --> 00:01:00,000\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,100 --> 00:01:02,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            )
-          )
-        (describe "before the first subtitle"
-          (it "a single subtitle."
-            (cl-loop for arg in (list '- -1 (list 4)) do
-                     (with-temp-srt-buffer
-                       (spy-on 'subed-regenerate-ids-soon)
-                       (insert (concat "1\n"
-                                       "00:00:00,050 --> 00:00:02,000\n"
-                                       "Foo.\n"))
-                       (subed-jump-to-subtitle-text 1)
-                       (expect (subed-insert-subtitle arg) :to-equal 33)
-                       (expect (buffer-string) :to-equal (concat "0\n"
-                                                                 "00:00:00,000 
--> 00:00:00,000\n"
-                                                                 "\n\n"
-                                                                 "1\n"
-                                                                 "00:00:00,050 
--> 00:00:02,000\n"
-                                                                 "Foo.\n"))
-                       (expect (point) :to-equal 33)
-                       (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                       (spy-calls-reset 'subed-regenerate-ids-soon))))
-          (it "multiple subtitles."
-            (cl-loop for arg in (list -2 (list 16)) do
-                     (with-temp-srt-buffer
-                       (spy-on 'subed-regenerate-ids-soon)
-                       (insert (concat "1\n"
-                                       "00:00:00,100 --> 00:00:01,500\n"
-                                       "Foo.\n"))
-                       (subed-jump-to-subtitle-text 1)
-                       (expect (subed-insert-subtitle arg) :to-equal 33)
-                       (expect (buffer-string) :to-equal (concat "0\n"
-                                                                 "00:00:00,000 
--> 00:00:00,000\n"
-                                                                 "\n\n"
-                                                                 "0\n"
-                                                                 "00:00:00,000 
--> 00:00:00,000\n"
-                                                                 "\n\n"
-                                                                 "1\n"
-                                                                 "00:00:00,100 
--> 00:00:01,500\n"
-                                                                 "Foo.\n"))
-                       (expect (point) :to-equal 33)
-                       (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                       (spy-calls-reset 'subed-regenerate-ids-soon))))
-          )
-        )
-      )
-    )
-
-  (describe "Inserting adjacent"
-    (describe "in an empty buffer,"
-      (describe "appending"
-        (it "a single subtile."
-          (cl-loop for arg in (list nil 1) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:00,000 
--> 00:00:01,000\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtiles."
-          (cl-loop for arg in (list 2) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:00,000 
--> 00:00:01,000\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:00:01,100 
--> 00:00:02,100\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      (describe "prepending"
-        (it "a single subtile."
-          (cl-loop for arg in (list '- -1 (list 4)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:00,000 
--> 00:00:01,000\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtiles."
-          (cl-loop for arg in (list -2 (list -16)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:00,000 
--> 00:00:01,000\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:00:01,100 
--> 00:00:02,100\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      )
-    (describe "in a non-empty buffer"
-      (describe "prepending between subtitles"
-        (it "a single subtitle."
-          (cl-loop for arg in (list '- -1 (list 4)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n\n"
-                                     "2\n"
-                                     "00:02:00,000 --> 00:02:01,000\n"
-                                     "Bar.\n"))
-                     (subed-jump-to-subtitle-text 2)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:58,900 
--> 00:01:59,900\n"
-                                                               "\n\n"
-                                                               "2\n"
-                                                               "00:02:00,000 
--> 00:02:01,000\n"
-                                                               "Bar.\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtitles."
-          (cl-loop for arg in (list -2 (list 16)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n\n"
-                                     "2\n"
-                                     "00:02:00,000 --> 00:02:01,000\n"
-                                     "Bar.\n"))
-                     (subed-jump-to-subtitle-text 2)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:57,800 
--> 00:01:58,800\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:01:58,900 
--> 00:01:59,900\n"
-                                                               "\n\n"
-                                                               "2\n"
-                                                               "00:02:00,000 
--> 00:02:01,000\n"
-                                                               "Bar.\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      (describe "appending between subtitles"
-        (it "a single subtitle."
-          (cl-loop for arg in (list nil 1) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n\n"
-                                     "2\n"
-                                     "00:02:00,000 --> 00:02:01,000\n"
-                                     "Bar.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:00,100 
--> 00:01:01,100\n"
-                                                               "\n\n"
-                                                               "2\n"
-                                                               "00:02:00,000 
--> 00:02:01,000\n"
-                                                               "Bar.\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtitles."
-          (cl-loop for arg in (list 2) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n\n"
-                                     "2\n"
-                                     "00:02:00,000 --> 00:02:01,000\n"
-                                     "Bar.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:00,100 
--> 00:01:01,100\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:01:01,200 
--> 00:01:02,200\n"
-                                                               "\n\n"
-                                                               "2\n"
-                                                               "00:02:00,000 
--> 00:02:01,000\n"
-                                                               "Bar.\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      (describe "prepending to the first subtitle"
-        (it "a single subtitle."
-          (cl-loop for arg in (list '- -1 (list 4)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:01:00,000 --> 00:01:01,000\n"
-                                     "Foo.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:58,900 
--> 00:00:59,900\n"
-                                                               "\n\n"
-                                                               "1\n"
-                                                               "00:01:00,000 
--> 00:01:01,000\n"
-                                                               "Foo.\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtitles."
-          (cl-loop for arg in (list -2 (list 16)) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:01:00,000 --> 00:01:01,000\n"
-                                     "Foo.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 33)
-                     (expect (buffer-string) :to-equal (concat "0\n"
-                                                               "00:00:57,800 
--> 00:00:58,800\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:00:58,900 
--> 00:00:59,900\n"
-                                                               "\n\n"
-                                                               "1\n"
-                                                               "00:01:00,000 
--> 00:01:01,000\n"
-                                                               "Foo.\n"))
-                     (expect (point) :to-equal 33)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      (describe "appending to the last subtitle"
-        (it "a single subtitle."
-          (cl-loop for arg in (list nil 1) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n"))
-                     (subed-jump-to-subtitle-text 1)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:00,100 
--> 00:01:01,100\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        (it "multiple subtitles."
-          (cl-loop for arg in (list 2) do
-                   (with-temp-srt-buffer
-                     (spy-on 'subed-regenerate-ids-soon)
-                     (insert (concat "1\n"
-                                     "00:00:59,000 --> 00:01:00,000\n"
-                                     "Foo.\n"))
-                     (subed-jump-to-subtitle-text 3)
-                     (expect (subed-insert-subtitle-adjacent arg) :to-equal 71)
-                     (expect (buffer-string) :to-equal (concat "1\n"
-                                                               "00:00:59,000 
--> 00:01:00,000\n"
-                                                               "Foo.\n\n"
-                                                               "0\n"
-                                                               "00:01:00,100 
--> 00:01:01,100\n"
-                                                               "\n\n"
-                                                               "0\n"
-                                                               "00:01:01,200 
--> 00:01:02,200\n"
-                                                               "\n"))
-                     (expect (point) :to-equal 71)
-                     (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                     (spy-calls-reset 'subed-regenerate-ids-soon))))
-        )
-      (describe "when there is not enough time for the subtitles"
-        (describe "to append"
-          (it "a single subtitle."
-            (cl-loop for arg in (list nil 1) do
-                     (with-temp-srt-buffer
-                       (spy-on 'subed-regenerate-ids-soon)
-                       (insert (concat "1\n"
-                                       "00:00:59,000 --> 00:01:00,000\n"
-                                       "Foo.\n\n"
-                                       "2\n"
-                                       "00:01:00,500 --> 00:01:05,000\n"
-                                       "Bar.\n"))
-                       (subed-jump-to-subtitle-text 1)
-                       (expect (subed-insert-subtitle-adjacent arg) :to-equal 
71)
-                       (expect (buffer-string) :to-equal (concat "1\n"
-                                                                 "00:00:59,000 
--> 00:01:00,000\n"
-                                                                 "Foo.\n\n"
-                                                                 "0\n"
-                                                                 "00:01:00,100 
--> 00:01:00,400\n"
-                                                                 "\n\n"
-                                                                 "2\n"
-                                                                 "00:01:00,500 
--> 00:01:05,000\n"
-                                                                 "Bar.\n"))
-                       (expect (point) :to-equal 71)
-                       (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                       (spy-calls-reset 'subed-regenerate-ids-soon))))
-          (it "multiple subtitles."
-            (cl-loop for arg in (list 2) do
-                     (with-temp-srt-buffer
-                       (spy-on 'subed-regenerate-ids-soon)
-                       (insert (concat "1\n"
-                                       "00:00:59,000 --> 00:01:00,000\n"
-                                       "Foo.\n\n"
-                                       "2\n"
-                                       "00:01:00,500 --> 00:01:05,000\n"
-                                       "Bar.\n"))
-                       (subed-jump-to-subtitle-text 1)
-                       (expect (subed-insert-subtitle-adjacent arg) :to-equal 
71)
-                       (expect (buffer-string) :to-equal (concat "1\n"
-                                                                 "00:00:59,000 
--> 00:01:00,000\n"
-                                                                 "Foo.\n\n"
-                                                                 "0\n"
-                                                                 "00:01:00,100 
--> 00:01:00,200\n"
-                                                                 "\n\n"
-                                                                 "0\n"
-                                                                 "00:01:00,300 
--> 00:01:00,400\n"
-                                                                 "\n\n"
-                                                                 "2\n"
-                                                                 "00:01:00,500 
--> 00:01:05,000\n"
-                                                                 "Bar.\n"))
-                       (expect (point) :to-equal 71)
-                       (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                       (spy-calls-reset 'subed-regenerate-ids-soon))))
-          )
-        (describe "to prepend"
-          (describe "between subtitles"
-            (it "a single subtitle."
-              (cl-loop for arg in (list '- -1 (list 4)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:59,000 --> 00:01:00,000\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,700 --> 00:01:05,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 2)
-                         (expect (subed-insert-subtitle-adjacent arg) 
:to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:59,000 --> 00:01:00,000\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,100 --> 00:01:00,600\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,700 --> 00:01:05,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            (it "multiple subtitles."
-              (cl-loop for arg in (list -2 (list 16)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:59,000 --> 00:01:00,000\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,500 --> 00:01:05,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 2)
-                         (expect (subed-insert-subtitle-adjacent arg) 
:to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:59,000 --> 00:01:00,000\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,100 --> 00:01:00,200\n"
-                                                                   "\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,300 --> 00:01:00,400\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,500 --> 00:01:05,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            )
-          (describe "before the first subtitle"
-            (it "a single subtitle."
-              (cl-loop for arg in (list '- -1 (list 4)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:01,000 --> 00:00:02,000\n"
-                                         "Foo.\n"))
-                         (subed-jump-to-subtitle-text 1)
-                         (expect (subed-insert-subtitle-adjacent arg) 
:to-equal 33)
-                         (expect (buffer-string) :to-equal (concat "0\n"
-                                                                   
"00:00:00,100 --> 00:00:00,900\n"
-                                                                   "\n\n"
-                                                                   "1\n"
-                                                                   
"00:00:01,000 --> 00:00:02,000\n"
-                                                                   "Foo.\n"))
-                         (expect (point) :to-equal 33)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            (it "multiple subtitles."
-              (cl-loop for arg in (list -2 (list 16)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:00,800 --> 00:00:03,000\n"
-                                         "Foo.\n"))
-                         (subed-jump-to-subtitle-text 2)
-                         (expect (subed-insert-subtitle-adjacent arg) 
:to-equal 33)
-                         (expect (buffer-string) :to-equal (concat "0\n"
-                                                                   
"00:00:00,100 --> 00:00:00,350\n"
-                                                                   "\n\n"
-                                                                   "0\n"
-                                                                   
"00:00:00,450 --> 00:00:00,700\n"
-                                                                   "\n\n"
-                                                                   "1\n"
-                                                                   
"00:00:00,800 --> 00:00:03,000\n"
-                                                                   "Foo.\n"))
-                         (expect (point) :to-equal 33)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            )
-          )
-        )
-      (describe "when there is not enough time for spacing"
-        (describe "between subtitles"
-          (describe "when prepending"
-            (it "a single subtitle."
-              (cl-loop for arg in (list '- -1 (list 4)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:59,000 --> 00:01:00,000\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,005 --> 00:01:05,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 2)
-                         (expect (subed-insert-subtitle-adjacent arg) 
:to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:59,000 --> 00:01:00,000\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,005 --> 00:01:00,005\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,005 --> 00:01:05,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            (it "multiple subtitles."
-              (cl-loop for arg in (list -2 (list 16)) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:59,000 --> 00:01:00,000\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,025 --> 00:01:05,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 2)
-                         (expect (subed-insert-subtitle-adjacent arg) 
:to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:59,000 --> 00:01:00,000\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,025 --> 00:01:00,025\n"
-                                                                   "\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,025 --> 00:01:00,025\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,025 --> 00:01:05,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            )
-          (describe "when appending"
-            (it "a single subtitle."
-              (cl-loop for arg in (list nil 1) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:59,000 --> 00:01:00,000\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,099 --> 00:01:05,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 1)
-                         (expect (subed-insert-subtitle-adjacent arg) 
:to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:59,000 --> 00:01:00,000\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,000 --> 00:01:00,000\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,099 --> 00:01:05,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            (it "multiple subtitles."
-              (cl-loop for arg in (list 2) do
-                       (with-temp-srt-buffer
-                         (spy-on 'subed-regenerate-ids-soon)
-                         (insert (concat "1\n"
-                                         "00:00:59,000 --> 00:01:00,000\n"
-                                         "Foo.\n\n"
-                                         "2\n"
-                                         "00:01:00,075 --> 00:01:05,000\n"
-                                         "Bar.\n"))
-                         (subed-jump-to-subtitle-text 1)
-                         (expect (subed-insert-subtitle-adjacent arg) 
:to-equal 71)
-                         (expect (buffer-string) :to-equal (concat "1\n"
-                                                                   
"00:00:59,000 --> 00:01:00,000\n"
-                                                                   "Foo.\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,000 --> 00:01:00,000\n"
-                                                                   "\n\n"
-                                                                   "0\n"
-                                                                   
"00:01:00,000 --> 00:01:00,000\n"
-                                                                   "\n\n"
-                                                                   "2\n"
-                                                                   
"00:01:00,075 --> 00:01:05,000\n"
-                                                                   "Bar.\n"))
-                         (expect (point) :to-equal 71)
-                         (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                         (spy-calls-reset 'subed-regenerate-ids-soon))))
-            )
-          )
-        (describe "before the first subtitle"
-          (it "a single subtitle."
-            (cl-loop for arg in (list '- -1 (list 4)) do
-                     (with-temp-srt-buffer
-                       (spy-on 'subed-regenerate-ids-soon)
-                       (insert (concat "1\n"
-                                       "00:00:00,040 --> 00:00:05,000\n"
-                                       "Foo.\n"))
-                       (subed-jump-to-subtitle-text 1)
-                       (expect (subed-insert-subtitle-adjacent arg) :to-equal 
33)
-                       (expect (buffer-string) :to-equal (concat "0\n"
-                                                                 "00:00:00,040 
--> 00:00:00,040\n"
-                                                                 "\n\n"
-                                                                 "1\n"
-                                                                 "00:00:00,040 
--> 00:00:05,000\n"
-                                                                 "Foo.\n"))
-                       (expect (point) :to-equal 33)
-                       (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                       (spy-calls-reset 'subed-regenerate-ids-soon))))
-          (it "multiple subtitles."
-            (cl-loop for arg in (list -2 (list 16)) do
-                     (with-temp-srt-buffer
-                       (spy-on 'subed-regenerate-ids-soon)
-                       (insert (concat "1\n"
-                                       "00:00:00,024 --> 00:00:05,000\n"
-                                       "Foo.\n"))
-                       (subed-jump-to-subtitle-text 1)
-                       (expect (subed-insert-subtitle-adjacent arg) :to-equal 
33)
-                       (expect (buffer-string) :to-equal (concat "0\n"
-                                                                 "00:00:00,024 
--> 00:00:00,024\n"
-                                                                 "\n\n"
-                                                                 "0\n"
-                                                                 "00:00:00,024 
--> 00:00:00,024\n"
-                                                                 "\n\n"
-                                                                 "1\n"
-                                                                 "00:00:00,024 
--> 00:00:05,000\n"
-                                                                 "Foo.\n"))
-                       (expect (point) :to-equal 33)
-                       (expect 'subed-regenerate-ids-soon 
:to-have-been-called-times 1)
-                       (spy-calls-reset 'subed-regenerate-ids-soon))))
-          )
-        )
-      )
-    )
-
-  (describe "Syncing player to point"
-    :var (subed-mpv-playback-position)
-    (before-each
-      (setq subed-mpv-playback-position 0)
-      (spy-on 'subed-subtitle-msecs-start :and-return-value 5000)
-      (spy-on 'subed-subtitle-msecs-stop :and-return-value 6500)
-      (spy-on 'subed-mpv-jump))
-    (it "does not seek player if point is on current subtitle."
-      (setq subed-mpv-playback-position 5000)
-      (subed--sync-player-to-point)
-      (expect 'subed-mpv-jump :not :to-have-been-called)
-      (setq subed-mpv-playback-position 6500)
-      (subed--sync-player-to-point)
-      (expect 'subed-mpv-jump :not :to-have-been-called))
-    (it "seeks player if point is on future subtitle."
-      (with-temp-buffer
-        (subed-srt-mode)
-        (setq subed-mpv-playback-position 6501)
-        (subed--sync-player-to-point)
-        (expect 'subed-mpv-jump :to-have-been-called-with 5000)))
-    (it "seeks player if point is on past subtitle."
-      (with-temp-buffer
-        (subed-srt-mode)
-        (setq subed-mpv-playback-position 4999)
-        (subed--sync-player-to-point)
-        (expect 'subed-mpv-jump :to-have-been-called-with 5000)))
-    )
-
-  (describe "Temporarily disabling point-to-player syncing"
-    (before-each
-      (spy-on 'subed-disable-sync-point-to-player)
-                       (spy-on 'timerp :and-return-value t))
-    (describe "when point-to-player syncing is disabled"
-      (before-each
-        (setq subed--point-sync-delay-after-motion-timer nil)
-                               (spy-on 'subed-sync-point-to-player-p 
:and-return-value nil)
-        (spy-on 'run-at-time))
-      (it "does not disable point-to-player syncing."
-        (subed-disable-sync-point-to-player-temporarily)
-        (expect 'subed-disable-sync-point-to-player :not :to-have-been-called))
-      (it "does not schedule re-enabling of point-to-player syncing."
-        (subed-disable-sync-point-to-player-temporarily)
-        (expect 'run-at-time :not :to-have-been-called)
-        (expect subed--point-sync-delay-after-motion-timer :to-be nil))
-      )
-    (describe "when point-to-player syncing is enabled"
-      :var (subed--point-sync-delay-after-motion-timer)
-      (before-each
-        (spy-on 'subed-sync-point-to-player-p :and-return-value t)
-        (spy-on 'run-at-time :and-return-value "mock timer")
-        (spy-on 'cancel-timer)
-        (setq subed--point-sync-delay-after-motion-timer nil))
-      (it "disables point-to-player syncing."
-        (subed-disable-sync-point-to-player-temporarily)
-        (expect 'subed-disable-sync-point-to-player :to-have-been-called))
-      (it "schedules re-enabling of point-to-player syncing."
-        (subed-disable-sync-point-to-player-temporarily)
-        (expect 'run-at-time :to-have-been-called)
-        ;; Does not play well with undercover and edebug
-        ;; (expect 'run-at-time :to-have-been-called-with
-        ;;         subed-point-sync-delay-after-motion nil
-        ;;         '(closure (t) nil
-        ;;                   (setq subed--point-sync-delay-after-motion-timer 
nil)
-        ;;                   (subed-enable-sync-point-to-player :quiet)))
-        )
-      (it "cancels previously scheduled re-enabling of point-to-player 
syncing."
-        (subed-disable-sync-point-to-player-temporarily)
-        (expect 'cancel-timer :not :to-have-been-called-with "mock timer")
-        (subed-disable-sync-point-to-player-temporarily)
-        (expect 'cancel-timer :to-have-been-called-with "mock timer")
-        (expect 'cancel-timer :to-have-been-called-times 1))
-      )
-    )
-
-  (describe "Splitting subtitles"
-    (it "handles empty subtitles"
-      (with-temp-srt-buffer
-                               (insert "1
-00:01:23,000 --> 00:02:34,567
-
-")
-                               (forward-line -1)
-                               (let ((subed-subtitle-spacing 100))
-                                       (subed-split-subtitle 100))
-                               (expect (buffer-string) :to-equal
-                                                               "1
-00:01:23,000 --> 00:01:23,100
-
-
-0
-00:01:23,200 --> 00:02:34,567
-
-")))
-    (describe "when there are multiple lines"
-      (describe "at the last subtitle"
-        :var ((text "1
-00:01:23,000 --> 00:02:34,567
-This is a subtitle
-that has two lines.
-
-")
-              (subed-subtitle-spacing 100))
-        (it "properly splits text when called at the beginning of the 
subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (re-search-backward "This is a 
subtitle")
-                                               (goto-char (match-beginning 0))
-                                               (save-excursion 
(subed-split-subtitle 100))
-                                               (expect (buffer-string) 
:to-equal "1
-00:01:23,000 --> 00:01:23,100
-
-
-0
-00:01:23,200 --> 00:02:34,567
-This is a subtitle
-that has two lines.
-")))
-        (it "properly splits text when called in the middle of the subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (re-search-backward "This is a")
-                                               (goto-char (match-end 0))
-                                               (subed-split-subtitle 100)
-                                               (expect (subed-subtitle-text 1) 
:to-equal "This is a")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal "subtitle\nthat has two lines.")))
-        (it "properly splits text when called at the end of a line in the 
middle of the subtitle"
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (re-search-backward "This is a 
subtitle")
-                                               (goto-char (match-end 0))
-                                               (subed-split-subtitle 100)
-                                               (expect (subed-subtitle-text 1) 
:to-equal "This is a subtitle")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal "that has two lines.")))
-        (it "properly splits text when called at the beginning of a line in 
the middle of the subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (re-search-backward "that has 
two lines")
-                                               (goto-char (match-beginning 0))
-                                               (subed-split-subtitle 100)
-                                               (expect (buffer-string) 
:to-equal "1
-00:01:23,000 --> 00:01:23,100
-This is a subtitle
-
-0
-00:01:23,200 --> 00:02:34,567
-that has two lines.
-")  (expect (subed-subtitle-text 1) :to-equal "This is a subtitle")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal "that has two lines.")))
-        (it "properly splits text when called at the end of the subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (subed-jump-to-subtitle-end 1)
-                                               (subed-split-subtitle 100)
-                                               (expect (subed-subtitle-text 1) 
:to-equal "This is a subtitle\nthat has two lines.")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal "")))
-        (it "properly splits text when called before whitespace at the end of 
the subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (subed-jump-to-subtitle-end 1)
-                                               (save-excursion (insert "  "))
-                                               (subed-split-subtitle 100)
-                                               (expect (subed-subtitle-text 1) 
:to-equal "This is a subtitle\nthat has two lines.")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal ""))))
-      (describe "with another subtitle after it"
-        :var ((text "1
-00:01:23,000 --> 00:02:34,567
-This is a subtitle
-that has two lines.
-
-2
-00:05:00,000 --> 00:06:00,000
-This is another.
-"))
-        (it "properly splits text when called at the beginning of the 
subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (re-search-backward "This is a 
subtitle")
-                                               (goto-char (match-beginning 0))
-                                               (let ((subed-subtitle-spacing 
100))
-                                                       (save-excursion 
(subed-split-subtitle 100))
-                                                       (expect 
subed-subtitle-spacing :to-equal 100))
-                                               (expect (buffer-string) 
:to-equal "1
-00:01:23,000 --> 00:01:23,100
-
-0
-00:01:23,200 --> 00:02:34,567
-This is a subtitle
-that has two lines.
-
-2
-00:05:00,000 --> 00:06:00,000
-This is another.
-")))
-        (it "properly splits text when called in the middle of the subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (re-search-backward "This is a 
subtitle")
-                                               (goto-char (match-end 0))
-                                               (backward-word 1)
-                                               (subed-split-subtitle 100)
-                                               (expect (subed-subtitle-text 1) 
:to-equal "This is a")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal "subtitle\nthat has two lines.")))
-        (it "properly splits text when called at the end of a line in the 
middle of the subtitle"
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (re-search-backward "This is a 
subtitle")
-                                               (goto-char (match-end 0))
-                                               (subed-split-subtitle 100)
-                                               (expect (subed-subtitle-text 1) 
:to-equal "This is a subtitle")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal "that has two lines.")))
-        (it "properly splits text when called at the beginning of a line in 
the middle of the subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (re-search-backward "that has 
two lines")
-                                               (goto-char (match-beginning 0))
-                                               (let 
((subed-enforce-time-boundaries 'adjust)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       (subed-split-subtitle 
100))
-                                               (expect (buffer-string) 
:to-equal "1
-00:01:23,000 --> 00:01:23,100
-This is a subtitle
-
-0
-00:01:23,200 --> 00:02:34,567
-that has two lines.
-
-2
-00:05:00,000 --> 00:06:00,000
-This is another.
-")  (expect (subed-subtitle-text 1) :to-equal "This is a subtitle")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal "that has two lines.")))
-        (it "properly splits text when called at the end of the subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (subed-jump-to-subtitle-end 1)
-                                               (subed-split-subtitle 100)
-                                               (expect (subed-subtitle-text 1) 
:to-equal "This is a subtitle\nthat has two lines.")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal "")))
-        (it "properly splits text when called before whitespace at the end of 
the subtitle."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (subed-jump-to-subtitle-end 1)
-                                               (save-excursion (insert "  "))
-                                               (subed-split-subtitle 100)
-                                               (expect (subed-subtitle-text 1) 
:to-equal "This is a subtitle\nthat has two lines.")
-                                               (subed-regenerate-ids)
-                                               (expect (subed-subtitle-text 2) 
:to-equal "")))
-        (it "accepts a timestamp."
-          (with-temp-srt-buffer
-                                               (insert text)
-                                               (re-search-backward "subtitle")
-                                               (end-of-line)
-                                               (subed-split-subtitle 
"00:01:43,100")
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal 103100)
-                                               
(subed-backward-subtitle-time-start)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal (- 103100 subed-subtitle-spacing))))))
-    (describe "when playing the media in MPV"
-      (it "splits at point in the middle of the subtitle."
-        (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (re-search-backward "Foo\\.")
-                                       (end-of-line)
-                                       (save-excursion (insert " Some text 
here."))
-                                       (setq-local subed-mpv-playback-position 
61600)
-                                       (setq-local subed-subtitle-spacing 100)
-                                       (subed-split-subtitle)
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 61700)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 65123)
-                                       (expect (subed-subtitle-text) :to-equal 
"Some text here.")
-                                       (subed-backward-subtitle-time-start)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 61600)
-                                       (expect (subed-subtitle-text) :to-equal 
"Foo.")))
-      (it "splits at the end even if there are spaces."
-        (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (re-search-backward "Foo\\.")
-                                       (subed-jump-to-subtitle-end)
-                                       (insert " ")
-                                       (setq-local subed-mpv-playback-position 
61600)
-                                       (setq-local subed-subtitle-spacing 100)
-                                       (subed-split-subtitle)
-                                       (expect (subed-subtitle-text) :to-equal 
"")
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 61700)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 65123)
-                                       (subed-backward-subtitle-time-start)
-                                       (expect (subed-subtitle-text) :to-equal 
"Foo.")
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 61600)))
-      (it "splits at the beginning."
-        (with-temp-srt-buffer
-                                       (save-excursion (insert mock-srt-data))
-                                       (subed-jump-to-subtitle-text)
-                                       (setq-local subed-mpv-playback-position 
61600)
-                                       (setq-local subed-subtitle-spacing 100)
-                                       (subed-split-subtitle)
-                                       (expect (subed-subtitle-text) :to-equal 
"Foo.")
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 61700)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 65123)
-                                       (subed-backward-subtitle-time-start)
-                                       (expect (subed-subtitle-text) :to-equal 
"")
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 61600))))
-    (describe "when a positive offset is specified"
-      (it "splits from the starting time."
-        (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (re-search-backward "Foo\\.")
-                                       (end-of-line)
-                                       (save-excursion (insert " Some text 
here."))
-                                       (setq-local subed-subtitle-spacing 100)
-                                       (subed-split-subtitle 300)
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 61400)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 65123)
-                                       (expect (subed-subtitle-text) :to-equal 
"Some text here.")
-                                       (subed-backward-subtitle-time-start)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 61300)
-                                       (expect (subed-subtitle-text) :to-equal 
"Foo.")))
-      (it "uses the offset instead of the playing position."
-        (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (re-search-backward "Foo\\.")
-                                       (setq-local subed-mpv-playback-position 
61600)
-                                       (setq-local subed-subtitle-spacing 100)
-                                       (subed-split-subtitle 300)
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 61400)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 65123))))
-    (describe "when a negative offset is specified"
-      (it "splits from the ending time."
-        (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (re-search-backward "Foo\\.")
-                                       (end-of-line)
-                                       (save-excursion (insert " Some text 
here."))
-                                       (setq-local subed-subtitle-spacing 100)
-                                       (subed-split-subtitle -300)
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 64923)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 65123)
-                                       (expect (subed-subtitle-text) :to-equal 
"Some text here.")
-                                       (subed-backward-subtitle-time-start)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 64823)
-                                       (expect (subed-subtitle-text) :to-equal 
"Foo.")))
-      (it "uses the offset instead of the playing position."
-        (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (re-search-backward "Foo\\.")
-                                       (setq-local subed-subtitle-spacing 100)
-                                       (setq-local subed-mpv-playback-position 
61600)
-                                       (subed-split-subtitle -300)
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 64923)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 65123)
-                                       (subed-backward-subtitle-time-start)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 64823))))
-    (describe "when nothing is specified"
-      (it "splits proportional to the location."
-        (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (re-search-backward "Foo\\.")
-                                       (end-of-line)
-                                       (save-excursion (insert " Bar"))
-                                       (setq-local subed-subtitle-spacing 100)
-                                       (subed-split-subtitle)
-                                       (expect (subed-subtitle-msecs-start) 
:to-equal 63161)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 65123)
-                                       (expect (subed-subtitle-text) :to-equal 
"Bar")
-                                       (subed-backward-subtitle-time-start)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal 63061)
-                                       (expect (subed-subtitle-text) :to-equal 
"Foo.")))))
-
-  (describe "Scaling subtitles"
-    (it "without providing beginning and end."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (spy-on 'subed-scale-subtitles 
:and-call-through)
-                               (subed-scale-subtitles-forward 1000)
-                               (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                               (expect (subed-subtitle-msecs-stop 1) :to-equal 
65123)
-                               (expect (subed-subtitle-msecs-start 2) 
:to-equal 122734)
-                               (expect (subed-subtitle-msecs-stop 2) :to-equal 
130845)
-                               (expect (subed-subtitle-msecs-start 3) 
:to-equal 184450)
-                               (expect (subed-subtitle-msecs-stop 3) :to-equal 
196500)
-                               (subed-scale-subtitles-backward 1000)
-                               (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                               (expect (subed-subtitle-msecs-stop 1) :to-equal 
65123)
-                               (expect (subed-subtitle-msecs-start 2) 
:to-equal 122234)
-                               (expect (subed-subtitle-msecs-stop 2) :to-equal 
130345)
-                               (expect (subed-subtitle-msecs-start 3) 
:to-equal 183450)
-                               (expect (subed-subtitle-msecs-stop 3) :to-equal 
195500)
-                               (expect (spy-calls-all-args 
'subed-scale-subtitles) :to-equal
-                                                               '((+1000 nil 
nil)
-                                                                       (-1000 
nil nil)))))
-    (it "without providing end."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (subed-scale-subtitles 1000 (point-min) nil)
-                               (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                               (expect (subed-subtitle-msecs-stop 1) :to-equal 
65123)
-                               (expect (subed-subtitle-msecs-start 2) 
:to-equal 122734)
-                               (expect (subed-subtitle-msecs-stop 2) :to-equal 
130845)
-                               (expect (subed-subtitle-msecs-start 3) 
:to-equal 184450)
-                               (expect (subed-subtitle-msecs-stop 3) :to-equal 
196500)
-                               (subed-scale-subtitles -1000 (point-min) nil)
-                               (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                               (expect (subed-subtitle-msecs-stop 1) :to-equal 
65123)
-                               (expect (subed-subtitle-msecs-start 2) 
:to-equal 122234)
-                               (expect (subed-subtitle-msecs-stop 2) :to-equal 
130345)
-                               (expect (subed-subtitle-msecs-start 3) 
:to-equal 183450)
-                               (expect (subed-subtitle-msecs-stop 3) :to-equal 
195500)))
-    (it "without providing beginning."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (subed-scale-subtitles 1000 nil (point-max))
-                               (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                               (expect (subed-subtitle-msecs-stop 1) :to-equal 
65123)
-                               (expect (subed-subtitle-msecs-start 2) 
:to-equal 122734)
-                               (expect (subed-subtitle-msecs-stop 2) :to-equal 
130845)
-                               (expect (subed-subtitle-msecs-start 3) 
:to-equal 184450)
-                               (expect (subed-subtitle-msecs-stop 3) :to-equal 
196500)
-                               (subed-scale-subtitles -1000 nil (point-max))
-                               (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                               (expect (subed-subtitle-msecs-stop 1) :to-equal 
65123)
-                               (expect (subed-subtitle-msecs-start 2) 
:to-equal 122234)
-                               (expect (subed-subtitle-msecs-stop 2) :to-equal 
130345)
-                               (expect (subed-subtitle-msecs-start 3) 
:to-equal 183450)
-                               (expect (subed-subtitle-msecs-stop 3) :to-equal 
195500)))
-    (it "with active region on entire buffer."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (let ((beg (point-min))
-                                                       (end (point-max)))
-                                       (spy-on 'subed-scale-subtitles 
:and-call-through)
-                                       (spy-on 'region-beginning 
:and-return-value beg)
-                                       (spy-on 'region-end :and-return-value 
end)
-                                       (setq mark-active t)
-                                       (subed-scale-subtitles-forward 1000)
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 65123)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-equal 122734)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 130845)
-                                       (expect (subed-subtitle-msecs-start 3) 
:to-equal 184450)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 196500)
-                                       (subed-scale-subtitles-backward 1000)
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 65123)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-equal 122234)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 130345)
-                                       (expect (subed-subtitle-msecs-start 3) 
:to-equal 183450)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 195500)
-                                       (expect (spy-calls-all-args 
'subed-scale-subtitles) :to-equal
-                                                                       
`((+1000 ,beg ,end)
-                                                                               
(-1000 ,beg ,end))))))
-    (it "with a zero msec extension/contraction."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (subed-scale-subtitles-forward 0)
-                               (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                               (expect (subed-subtitle-msecs-stop 1) :to-equal 
65123)
-                               (expect (subed-subtitle-msecs-start 2) 
:to-equal 122234)
-                               (expect (subed-subtitle-msecs-stop 2) :to-equal 
130345)
-                               (expect (subed-subtitle-msecs-start 3) 
:to-equal 183450)
-                               (expect (subed-subtitle-msecs-stop 3) :to-equal 
195500)
-                               (subed-scale-subtitles-backward 0)
-                               (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                               (expect (subed-subtitle-msecs-stop 1) :to-equal 
65123)
-                               (expect (subed-subtitle-msecs-start 2) 
:to-equal 122234)
-                               (expect (subed-subtitle-msecs-stop 2) :to-equal 
130345)
-                               (expect (subed-subtitle-msecs-start 3) 
:to-equal 183450)
-                               (expect (subed-subtitle-msecs-stop 3) :to-equal 
195500)))
-    (it "with active region on one subtitle."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (let ((beg 77)                                  
                         ; point at ID of third subtitle
-                                                       (end (point-max)))
-                                       (spy-on 'region-beginning 
:and-return-value beg)
-                                       (spy-on 'region-end :and-return-value 
end)
-                                       (spy-on 'user-error :and-call-through)
-                                       (setq mark-active t)
-                                       (expect (subed-scale-subtitles-forward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale with fewer than 3 subtitles")))
-                                       (expect (buffer-string) :to-equal 
mock-srt-data))))
-    (it "with active region on two subtitles."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (let ((beg 39)                                  
                        ; point at ID of second subtitle
-                                                       (end (point-max)))
-                                       (spy-on 'region-beginning 
:and-return-value beg)
-                                       (spy-on 'region-end :and-return-value 
end)
-                                       (spy-on 'user-error :and-call-through)
-                                       (setq mark-active t)
-                                       (expect (subed-scale-subtitles-forward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale with only 2 subtitles")))
-                                       (expect (buffer-string) :to-equal 
mock-srt-data))))
-    (it "with active region contraction."
-      (with-temp-srt-buffer
-                               (insert (concat "1\n"
-                                                                               
                "00:00:43,233 --> 00:00:45,861\n"
-                                                                               
                "a\n"
-                                                                               
                "\n"
-                                                                               
                "2\n"
-                                                                               
                "00:00:51,675 --> 00:00:54,542\n"
-                                                                               
                "b\n"
-                                                                               
                "\n"
-                                                                               
                "3\n"
-                                                                               
                "00:01:00,717 --> 00:01:02,378\n"
-                                                                               
                "c\n"
-                                                                               
                "\n"
-                                                                               
                "4\n"
-                                                                               
                "00:01:02,452 --> 00:01:05,216\n"
-                                                                               
                "d\n"))
-                               (let ((beg (point-min))
-                                                       (end 103))              
                                 ; point at TEXT of third subtitle
-                                       (spy-on 'region-beginning 
:and-return-value beg)
-                                       (spy-on 'region-end :and-return-value 
end)
-                                       (setq mark-active t)
-                                       (subed-scale-subtitles-backward 1000)
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 43233)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 45861)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-equal 51192)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 54059)
-                                       (expect (subed-subtitle-msecs-start 3) 
:to-equal 59717)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 61378)
-                                       (expect (subed-subtitle-msecs-start 4) 
:to-equal 62452)
-                                       (expect (subed-subtitle-msecs-stop 4) 
:to-equal 65216))))
-    (it "with active region extension."
-      (with-temp-srt-buffer
-                               (insert (concat "1\n"
-                                                                               
                "00:00:43,233 --> 00:00:45,861\n"
-                                                                               
                "a\n"
-                                                                               
                "\n"
-                                                                               
                "2\n"
-                                                                               
                "00:00:51,192 --> 00:00:54,059\n"
-                                                                               
                "b\n"
-                                                                               
                "\n"
-                                                                               
                "3\n"
-                                                                               
                "00:00:59,717 --> 00:01:01,378\n"
-                                                                               
                "c\n"
-                                                                               
                "\n"
-                                                                               
                "4\n"
-                                                                               
                "00:01:02,452 --> 00:01:05,216\n"
-                                                                               
                "d\n"))
-                               (let ((beg (point-min))
-                                                       (end 103))              
                                 ; point at TEXT of third subtitle
-                                       (spy-on 'region-beginning 
:and-return-value beg)
-                                       (spy-on 'region-end :and-return-value 
end)
-                                       (setq mark-active t)
-                                       (setq-local subed-subtitle-spacing 0)
-                                       (subed-scale-subtitles-forward 1000)
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 43233)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 45861)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-equal 51675)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 54542)
-                                       (expect (subed-subtitle-msecs-start 3) 
:to-equal 60717)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 62378)
-                                       (expect (subed-subtitle-msecs-start 4) 
:to-equal 62452)
-                                       (expect (subed-subtitle-msecs-stop 4) 
:to-equal 65216))))
-               (describe "when active region extension overlaps next subtitle"
-                       (it "reports an error"
-                               (with-temp-srt-buffer
-                                       (let ((initial-contents
-                                                                (concat "1\n"
-                                                                               
                 "00:00:43,233 --> 00:00:45,861\n"
-                                                                               
                 "a\n"
-                                                                               
                 "\n"
-                                                                               
                 "2\n"
-                                                                               
                 "00:00:51,675 --> 00:00:54,542\n"
-                                                                               
                 "b\n"
-                                                                               
                 "\n"
-                                                                               
                 "3\n"
-                                                                               
                 "00:01:00,717 --> 00:01:02,378\n"
-                                                                               
                 "c\n"
-                                                                               
                 "\n"
-                                                                               
                 "4\n"
-                                                                               
                 "00:01:02,452 --> 00:01:05,216\n"
-                                                                               
                 "d\n"))
-                                                               (beg 1)
-                                                               (end 103))      
                                 ; point at TEXT of third subtitle
-                                               (spy-on 'region-beginning 
:and-return-value beg)
-                                               (spy-on 'region-end 
:and-return-value end)
-                                               (spy-on 'user-error 
:and-call-through)
-                                               (insert initial-contents)
-                                               (setq mark-active t)
-                                               (let 
((subed-enforce-time-boundaries 'error))
-                                                       (expect 
(subed-scale-subtitles-forward 1000) :to-throw 'error))
-                                               (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                               
'(("Can't scale when extension would overlap subsequent subtitles")))
-                                               (expect (buffer-string) 
:to-equal initial-contents))))
-                       (it "when end subtitle start time moved to same time as 
begin subtitle start time."
-                               (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (let ((beg (point-min))
-                                                               (end 
(point-max))
-                                                               (delta (- 
(subed-subtitle-msecs-start 3)
-                                                                               
                        (subed-subtitle-msecs-start 1))))
-                                               (spy-on 'region-beginning 
:and-return-value beg)
-                                               (spy-on 'region-end 
:and-return-value end)
-                                               (spy-on 'user-error 
:and-call-through)
-                                               (setq mark-active t)
-                                               (expect 
(subed-scale-subtitles-backward delta) :to-throw 'error)
-                                               (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                               
'(("Can't scale when contraction would eliminate region")))
-                                               (expect (buffer-string) 
:to-equal mock-srt-data)))))
-    (it "when end subtitle start time moved to just before begin subtitle 
start time."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (let ((beg (point-min))
-                                                       (end (point-max))
-                                                       (delta (- 
(subed-subtitle-msecs-start 3)
-                                                                               
                (subed-subtitle-msecs-start 1))))
-                                       (spy-on 'region-beginning 
:and-return-value beg)
-                                       (spy-on 'region-end :and-return-value 
end)
-                                       (spy-on 'user-error :and-call-through)
-                                       (setq mark-active t)
-                                       (expect (subed-scale-subtitles-backward 
(+ delta 1)) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale when contraction would eliminate region")))
-                                       (expect (buffer-string) :to-equal 
mock-srt-data))))
-    (it "when end subtitle start time moved to just after begin subtitle start 
time."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (let ((beg (point-min))
-                                                       (end (point-max))
-                                                       (delta (- 
(subed-subtitle-msecs-start 3)
-                                                                               
                (subed-subtitle-msecs-start 1))))
-                                       (spy-on 'region-beginning 
:and-return-value beg)
-                                       (spy-on 'region-end :and-return-value 
end)
-                                       (setq mark-active t)
-                                       (subed-scale-subtitles-backward (- 
delta 1))
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 61000)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 65123)
-                                       (expect (subed-subtitle-msecs-start 2) 
:to-equal 61001)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 69112)
-                                       (expect (subed-subtitle-msecs-start 3) 
:to-equal 61001)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 73051))))
-    (it "when begin start time same as end start time."
-      (with-temp-srt-buffer
-                               (let ((initial-contents
-               (concat "1\n"
-                       "00:01:01,000 --> 00:01:05,123\n"
-                       "Foo.\n"
-                       "\n"
-                       "2\n"
-                       "00:01:01,000 --> 00:01:05,123\n"
-                       "Bar.\n"
-                       "\n"
-                       "3\n"
-                       "00:01:01,000 --> 00:01:05,123\n"
-                       "Baz.\n")))
-                                       (spy-on 'user-error :and-call-through)
-                                       (insert initial-contents)
-                                       (expect (subed-scale-subtitles-forward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale subtitle range with 0 time interval")))
-                                       (expect (buffer-string) :to-equal 
initial-contents)
-                                       (spy-calls-reset 'user-error)
-                                       (expect (subed-scale-subtitles-backward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale subtitle range with 0 time interval")))
-                                       (expect (buffer-string) :to-equal 
initial-contents))))
-    (it "when buffer is empty."
-      (spy-on 'user-error :and-call-through)
-      (with-temp-srt-buffer
-                               (expect (subed-scale-subtitles-forward 1000) 
:to-throw 'error)
-                               (expect (spy-calls-all-args 'user-error) 
:to-equal
-                                                               '(("Can't scale 
with fewer than 3 subtitles")))
-                               (expect (buffer-string) :to-equal "")
-                               (spy-calls-reset 'user-error)
-                               (expect (subed-scale-subtitles-backward 1000) 
:to-throw 'error)
-                               (expect (spy-calls-all-args 'user-error) 
:to-equal
-                                                               '(("Can't scale 
with fewer than 3 subtitles")))
-                               (expect (buffer-string) :to-equal "")))
-    (it "when buffer contains one subtitle."
-      (spy-on 'user-error :and-call-through)
-      (with-temp-srt-buffer
-                               (let ((initial-contents
-               (concat "1\n"
-                       "00:01:01,000 --> 00:01:05,123\n"
-                       "Foo.\n")))
-                                       (insert initial-contents)
-                                       (expect (subed-scale-subtitles-forward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale with fewer than 3 subtitles")))
-                                       (expect (buffer-string) :to-equal 
initial-contents)
-                                       (spy-calls-reset 'user-error)
-                                       (expect (subed-scale-subtitles-backward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale with fewer than 3 subtitles")))
-                                       (expect (buffer-string) :to-equal 
initial-contents))))
-    (it "when buffer contains two subtitles."
-      (spy-on 'user-error :and-call-through)
-      (with-temp-srt-buffer
-                               (let ((initial-contents
-               (concat "1\n"
-                       "00:01:01,000 --> 00:01:05,123\n"
-                       "Foo.\n"
-                       "\n"
-                       "2\n"
-                       "00:02:02,234 --> 00:02:10,345\n"
-                       "Bar.\n")))
-                                       (insert initial-contents)
-                                       (expect (subed-scale-subtitles-forward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale with only 2 subtitles")))
-                                       (expect (buffer-string) :to-equal 
initial-contents)
-                                       (spy-calls-reset 'user-error)
-                                       (expect (subed-scale-subtitles-backward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale with only 2 subtitles")))
-                                       (expect (buffer-string) :to-equal 
initial-contents))))
-    (it "reports an error if the subtitle in region has a start time after end 
start time."
-      (spy-on 'user-error :and-call-through)
-      (with-temp-srt-buffer
-                               (let ((initial-contents
-               (concat "1\n"
-                       "00:01:01,000 --> 00:01:05,123\n"
-                       "Foo.\n"
-                       "\n"
-                       "2\n"
-                       "00:03:03,45 --> 00:03:15,5\n"
-                       "Baz.\n"
-                       "\n"
-                       "3\n"
-                       "00:02:02,234 --> 00:02:10,345\n"
-                       "Bar.\n"))
-                                                       
(subed-enforce-time-boundaries 'error)
-                                                       (subed-subtitle-spacing 
100))
-                                       (insert initial-contents)
-                                       (expect subed-enforce-time-boundaries 
:to-equal 'error)
-                                       (expect (subed-scale-subtitles-forward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale when nonchronological subtitles exist")))
-                                       (expect (buffer-string) :to-equal 
initial-contents)
-                                       (spy-calls-reset 'user-error)
-                                       (expect (subed-scale-subtitles-backward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale when nonchronological subtitles exist")))
-                                       (expect (buffer-string) :to-equal 
initial-contents))))
-    (it "with first subtitle containing no timestamp."
-      (spy-on 'user-error :and-call-through)
-      (with-temp-srt-buffer
-                               (let ((initial-contents
-               (concat "1\n"
-                       "a\n"
-                       "\n"
-                       "2\n"
-                       "00:00:51,675 --> 00:00:54,542\n"
-                       "b\n"
-                       "\n"
-                       "3\n"
-                       "00:01:00,717 --> 00:01:02,378\n"
-                       "c\n")))
-                                       (insert initial-contents)
-                                       (expect (subed-scale-subtitles-forward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale when first subtitle timestamp missing")))
-                                       (expect (buffer-string) :to-equal 
initial-contents)
-                                       (spy-calls-reset 'user-error)
-                                       (expect (subed-scale-subtitles-backward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale when first subtitle timestamp missing")))
-                                       (expect (buffer-string) :to-equal 
initial-contents))))
-    (it "with last subtitle containing no timestamp."
-      (spy-on 'user-error :and-call-through)
-      (with-temp-srt-buffer
-                               (let ((initial-contents
-               (concat "1\n"
-                       "00:00:43,233 --> 00:00:45,861\n"
-                       "a\n"
-                       "\n"
-                       "2\n"
-                       "00:00:51,675 --> 00:00:54,542\n"
-                       "b\n"
-                       "\n"
-                       "3\n"
-                       "c\n")))
-                                       (insert initial-contents)
-                                       (expect (subed-scale-subtitles-forward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale when last subtitle timestamp missing")))
-                                       (expect (buffer-string) :to-equal 
initial-contents)
-                                       (spy-calls-reset 'user-error)
-                                       (expect (subed-scale-subtitles-backward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale when last subtitle timestamp missing")))
-                                       (expect (buffer-string) :to-equal 
initial-contents))))
-    (it "with subtitle in region containing no timestamp."
-      (spy-on 'user-error :and-call-through)
-      (with-temp-srt-buffer
-                               (let ((initial-contents
-               (concat "1\n"
-                       "00:00:43,233 --> 00:00:45,861\n"
-                       "a\n"
-                       "\n"
-                       "2\n"
-                       "b\n"
-                       "\n"
-                       "3\n"
-                       "00:01:00,717 --> 00:01:02,378\n"
-                       "c\n")))
-                                       (insert initial-contents)
-                                       (expect (subed-scale-subtitles-forward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale when subtitle timestamp missing")))
-                                       (expect (buffer-string) :to-equal 
initial-contents)
-                                       (spy-calls-reset 'user-error)
-                                       (expect (subed-scale-subtitles-backward 
1000) :to-throw 'error)
-                                       (expect (spy-calls-all-args 
'user-error) :to-equal
-                                                                       
'(("Can't scale when subtitle timestamp missing")))
-                                       (expect (buffer-string) :to-equal 
initial-contents))))
-    (it "with out-of-order range."
-      (spy-on 'user-error :and-call-through)
-      (with-temp-srt-buffer
-                               (expect (subed-scale-subtitles 1000 5 4) 
:to-throw 'error)
-                               (expect (spy-calls-all-args 'user-error) 
:to-equal
-                                                               '(("Can't scale 
with improper range"))))))
-
-  (describe "Trimming subtitles"
-    (describe "when spacing is 0"
-      (it "detects overlaps"
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:05,000\nA\n\n"
-                                                                       
"2\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 0))
-                                               (expect 
(subed--identify-overlaps)
-                                                                               
:to-equal '(1)))))
-      (it "ignores non-overlapping subtitles"
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,000\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 0))
-                                               (expect 
(subed--identify-overlaps)
-                                                                               
:to-equal nil)))))
-    (describe "when spacing is 1"
-      (it "detects overlaps"
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:04,000\nA\n\n"
-                                                                       
"2\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 1))
-                                               (expect 
(subed--identify-overlaps)
-                                                                               
:to-equal '(1)))))
-      (it "ignores non-overlapping subtitles"
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,999\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 1))
-                                               (expect 
(subed--identify-overlaps)
-                                                                               
:to-equal nil)))))
-    (describe "when spacing is greater"
-      (it "detects overlaps because of spacing"
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,999\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:05,000\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (expect 
(subed--identify-overlaps)
-                                                                               
:to-equal '(1 2)))))
-      (it "ignores non-overlapping subtitles."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:03,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (expect 
(subed--identify-overlaps)
-                                                                               
:to-equal nil)))))
-    (describe "overlap end time"
-      (it "sets it to the next timestamp minus spacing."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (subed-jump-to-subtitle-id 2)
-                                               (subed-trim-overlap-stop)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal 3900))))
-      (it "sets it to the next timestamp minus the argument."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (subed-jump-to-subtitle-id 2)
-                                               (subed-trim-overlap-stop 500)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal 3500))))
-      (it "ignores non-overlapping subtitles."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (subed-jump-to-subtitle-id 1)
-                                               (subed-trim-overlap-stop)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal 2000))))
-      (it "handles the last subtitle gracefully."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (subed-jump-to-subtitle-id 3)
-                                               (subed-trim-overlap-stop 500)
-                                               (expect 
(subed-subtitle-msecs-stop) :to-equal 6000))))
-      (it "handles empty buffers gracefully."
-        (with-temp-srt-buffer
-                                       (subed-trim-overlap-stop 500)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal nil)))
-                       (describe "when adjusting to time boundaries"
-                               (it "adjusts the start time if the new stop 
would be before the start time."
-                                       (with-temp-srt-buffer
-                                               (insert "1\n00:00:01,500 --> 
00:00:02,000\nA\n\n"
-                                                                               
"2\n00:00:01,000 --> 00:00:02,000\nA\n\n"
-                                                                               
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                               (let ((subed-subtitle-spacing 
100)
-                                                                       
(subed-enforce-time-boundaries 'adjust))
-                                                       
(subed-jump-to-subtitle-id 1)
-                                                       (expect 
(subed-trim-overlap-stop) :to-equal 900)
-                                                       (expect 
(subed-subtitle-msecs-stop 1) :to-equal 900)
-                                                       (expect 
(subed-subtitle-msecs-start 1) :to-equal 900)))))
-                       (describe "when clipping to time boundaries"
-                               (it "adjusts the start time if the new stop 
would be before the start time."
-                                       (with-temp-srt-buffer
-                                               (insert "1\n00:00:01,500 --> 
00:00:02,000\nA\n\n"
-                                                                               
"2\n00:00:01,000 --> 00:00:02,000\nA\n\n"
-                                                                               
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                               (let ((subed-subtitle-spacing 
100)
-                                                                       
(subed-enforce-time-boundaries 'clip))
-                                                       
(subed-jump-to-subtitle-id 1)
-                                                       (expect 
(subed-trim-overlap-stop) :to-equal 1500)
-                                                       (expect 
(subed-subtitle-msecs-stop 1) :to-equal 1500)
-                                                       (expect 
(subed-subtitle-msecs-start 1) :to-equal 1500))))))
-    (describe "overlap start time"
-      (it "sets next start to the current timestamp plus spacing."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (subed-jump-to-subtitle-id 2)
-                                               (subed-trim-overlap-next-start)
-                                               
(subed-forward-subtitle-time-start)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal 4600))))
-      (it "sets next start to the current timestamp plus the argument."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (subed-jump-to-subtitle-id 2)
-                                               (subed-trim-overlap-next-start 
500)
-                                               
(subed-forward-subtitle-time-start)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal 5000))))
-      (it "handles the last subtitle gracefully."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (subed-jump-to-subtitle-id 3)
-                                               (subed-trim-overlap-next-start 
500)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal 4000))))
-      (it "adjusts the timestamp if the new start is past the stop time."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:01,500 --> 00:00:02,000\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100)
-                                                               
(subed-enforce-time-boundaries 'adjust))
-                                               (subed-jump-to-subtitle-id 1)
-                                               (expect 
(subed-trim-overlap-next-start 500) :to-equal 2500)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 2500)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 2500))))
-      (it "handles empty buffers gracefully."
-        (with-temp-srt-buffer
-                                       (subed-trim-overlap-next-start 500)
-                                       (expect (subed-subtitle-msecs-stop) 
:to-equal nil))))
-    (describe "trimming overlaps"
-      (it "adjusts stop times by default."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n"
-                                                                       
"4\n00:00:05,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (subed-trim-overlaps))
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 2000)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 3900)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 4900)))
-      (it "adjusts start times if specified."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n"
-                                                                       
"4\n00:00:05,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100)
-                                                               
(subed-enforce-time-boundaries 'adjust)
-                                                               
(subed-trim-overlap-use-start t))
-                                               (subed-trim-overlaps)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 4500)
-                                               (expect 
(subed-subtitle-msecs-start 3) :to-equal 4600)
-                                               (expect 
(subed-subtitle-msecs-start 4) :to-equal 6100))))
-      (it "can specify the number of milliseconds."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA\n\n"
-                                                                       
"4\n00:00:05,000 --> 00:00:06,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (subed-trim-overlaps 200))
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 2000)
-                                       (expect (subed-subtitle-msecs-stop 2) 
:to-equal 3800)
-                                       (expect (subed-subtitle-msecs-stop 3) 
:to-equal 4800)))
-      (it "handles empty buffers gracefully."
-        (with-temp-srt-buffer
-                                       (expect (subed-trim-overlaps) :not 
:to-throw)))
-      (it "handles single subtitles gracefully."
-        (with-temp-srt-buffer
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n")
-                                       (let ((subed-subtitle-spacing 100))
-                                               (expect (subed-trim-overlaps) 
:not :to-throw))
-                                       (expect (subed-subtitle-msecs-start 1) 
:to-equal 1000)
-                                       (expect (subed-subtitle-msecs-stop 1) 
:to-equal 2000))))
-    (describe "when configured to trim on save,"
-      (it "trims overlaps after sorting."
-        (with-temp-srt-buffer
-                                       (let ((subed-trim-overlap-on-save t)
-                                                               
(subed-subtitle-spacing 200))
-                                               (insert "1\n00:00:01,000 --> 
00:00:02,000\nA\n\n"
-                                                                               
"2\n00:00:04,000 --> 00:00:06,000\nA\n\n"
-                                                                               
"3\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                                                                               
"4\n00:00:05,000 --> 00:00:06,000\nA\n\n")
-                                               (subed-prepare-to-save)
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3800)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 4800)))))
-               (describe "when configured to check on save,"
-                       (it "reports overlaps."
-                               (with-temp-srt-buffer
-                                       ;; Changed the test data to avoid 
sorting confusion
-                                       (insert "1\n00:00:01,000 --> 
00:00:02,000\nA1\n\n"
-                                                                       
"2\n00:00:03,000 --> 00:00:04,500\nA2\n\n"
-                                                                       
"3\n00:00:04,000 --> 00:00:06,000\nA3\n\n"
-                                                                       
"4\n00:00:05,000 --> 00:00:06,000\nA4\n\n")
-                                       (let ((subed-trim-overlap-check-on-save 
t)
-                                                               
(subed-trim-overlap-on-save nil)
-                                                               
(subed-subtitle-spacing 200)
-                                                               
(subed-enforce-time-boundaries 'adjust)
-                                                               
(buffer-modified-p nil))
-                                               (spy-on 
'subed-trim-overlap-check :and-call-through)
-                                               (spy-on 'subed-trim-overlaps 
:and-call-through)
-                                               (spy-on 'yes-or-no-p 
:and-return-value t)
-                                               (subed-prepare-to-save)
-                                               (expect 
'subed-trim-overlap-check :to-have-been-called)
-                                               (expect 'yes-or-no-p 
:to-have-been-called)
-                                               ;; Note changed behaviour: 
adjust the start time if needed,
-                                               ;; and don't change stop if 
there's enough space
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal 2000)
-                                               (expect 
(subed-subtitle-msecs-start 2) :to-equal 3000)
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal 3800)
-                                               (expect 
(subed-subtitle-msecs-stop 3) :to-equal 4800)))))
-    (describe "when configured to check on load,"
-      (it "reports overlaps."
-        (with-temp-buffer
-          (insert "1\n00:00:01,000 --> 00:00:02,000\nA\n\n"
-                  "2\n00:00:04,000 --> 00:00:06,000\nA\n\n"
-                  "3\n00:00:03,000 --> 00:00:04,500\nA\n\n"
-                  "4\n00:00:05,000 --> 00:00:06,000\nA\n\n")
-          (let ((subed-trim-overlap-check-on-load t)
-                (subed-subtitle-spacing 200))
-            (spy-on 'subed-trim-overlap-check :and-return-value nil)
-            (subed-srt-mode)
-            (expect subed--subtitle-format :to-equal "srt")
-            (expect 'subed-trim-overlap-check :to-have-been-called))))))
-  (describe "Getting a list of subtitles"
-    (it "returns nil in an empty buffer."
-      (with-temp-srt-buffer
-                               (expect (subed-subtitle-list) :to-equal nil)))
-    (it "returns the list."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (expect (subed-subtitle-list) :to-equal
-                                                               '((1 61000 
65123 "Foo." nil)
-                                                                       (2 
122234 130345 "Bar." nil)
-                                                                       (3 
183450 195500 "Baz." nil)))))
-    (it "returns a subset when bounds are specified."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (subed-jump-to-subtitle-id 3)
-                               (backward-char 1)
-                               (expect (subed-subtitle-list (point-min) 
(point))
-                                                               :to-equal
-                                                               '((1 61000 
65123 "Foo." nil)
-                                                                       (2 
122234 130345 "Bar." nil))))))
-  (describe "Getting the text of a list"
-    (it "returns a blank string when given nothing."
-      (expect (subed-subtitle-list-text nil) :to-equal ""))
-    (it "returns the text of a list of subtitles."
-      (expect
-       (subed-subtitle-list-text
-        '((nil 0 99 "Hello")
-          (nil 100 199 "world" "Comment")))
-       :to-equal "Hello\nworld\n"))
-    (it "includes comments."
-      (expect
-       (subed-subtitle-list-text
-        '((nil 0 99 "Hello")
-          (nil 100 199 "world" "NOTE Comment\n"))
-        t)
-       :to-equal "Hello\n\nNOTE Comment\nworld\n"))
-    (it "includes comments transformed by a function."
-      (let ((val
-             (subed-subtitle-list-text
-              '((nil 0 99 "Hello")
-                (nil 100 199 "world" "NOTE Comment\n"))
-              #'upcase)))
-        (expect val :to-equal "Hello\n\nNOTE COMMENT\nworld\n"))))
-  (describe "Copying region text"
-    (it "works on the whole buffer"
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (subed-copy-region-text)
-                               (expect (current-kill 0) :to-equal 
"Foo.\nBar.\nBaz.\n")))
-    (it "works on a specified region."
-      (with-temp-srt-buffer
-                               (insert mock-srt-data)
-                               (subed-copy-region-text (re-search-backward 
"Foo.") (re-search-forward "Bar."))
-                               (expect (current-kill 0) :to-equal 
"Foo.\nBar.\n"))))
-  (describe "Sorting"
-    (it "detects sorted lists."
-      (expect (subed--sorted-p '((1 1000 2000 "Test")
-                                 (2 2000 3000 "Test")
-                                 (3 3000 4000 "Test")))))
-    (it "detects unsorted lists."
-      (expect (subed--sorted-p '((1 3000 2000 "Test")
-                                 (2 4000 3000 "Test")
-                                 (3 1000 4000 "Test")))
-              :to-be nil))
-    (it "doesn't happen in an empty buffer."
-      (with-temp-srt-buffer
-        (spy-on 'sort-subr :and-call-through)
-        (subed-sort)
-        (expect 'sort-subr :not :to-have-been-called)))
-    (describe "already-sorted subtitles"
-      (it "doesn't rearrange subtitles."
-        (with-temp-srt-buffer
-          (insert mock-srt-data)
-          (spy-on 'sort-subr :and-call-through)
-          (subed-sort)
-          (expect 'sort-subr :not :to-have-been-called)))
-      (it "maintains the mark ring."
-        (with-temp-srt-buffer
-          (insert mock-srt-data)
-          (let ((mark-ring))
-            (push-mark 10 t nil)
-            (push-mark 20 t nil)
-            (push-mark 3 t nil)
-            (expect (marker-position (car mark-ring)) :to-be 20)
-            (expect (marker-position (cadr mark-ring)) :to-be 10)
-            (subed-sort)
-            (expect (marker-position (car mark-ring)) :to-be 20)
-            (expect (marker-position (cadr mark-ring)) :to-be 10)))))
-    (it "sorts subtitles by start time."
-      (with-temp-srt-buffer
-        (insert mock-srt-data "\n4\n00:02:01,000 --> 00:03:01,000\nNot 
sorted.\n")
-        (expect (subed--sorted-p) :to-be nil)
-        (goto-char (point-min))
-        (subed-sort)
-        (expect (subed-subtitle-text 2) :to-equal "Not sorted.")
-        (expect (subed-subtitle-text 3) :to-equal "Bar.")
-        (expect (subed-subtitle-text 4) :to-equal "Baz.")))))
-(describe "COMMON"
-  (describe "Iterating over subtitles"
-               (describe "without providing beginning and end"
-                       (it "goes through each subtitle."
-                               (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (subed-jump-to-subtitle-time-stop 1)
-                                       (subed-for-each-subtitle nil nil nil
-                                               (expect (looking-at "^[0-9]$") 
:to-be t)
-                                               (forward-line 2)
-                                               (kill-line)
-                                               (insert "Hello."))
-                                       (expect (subed-subtitle-text 1) 
:to-equal "Hello.")
-                                       (expect (subed-subtitle-text 2) 
:to-equal "Bar.")
-                                       (expect (subed-subtitle-text 3) 
:to-equal "Baz.")
-                                       (expect (point) :to-equal 20)
-                                       (subed-jump-to-subtitle-time-stop 2)
-                                       (subed-for-each-subtitle nil nil nil
-                                               (expect (looking-at "^[0-9]$") 
:to-be t)
-                                               (forward-line 2)
-                                               (kill-line)
-                                               (insert "HEllo."))
-                                       (expect (subed-subtitle-text 1) 
:to-equal "Hello.")
-                                       (expect (subed-subtitle-text 2) 
:to-equal "HEllo.")
-                                       (expect (subed-subtitle-text 3) 
:to-equal "Baz.")
-                                       (expect (point) :to-equal 60)
-                                       (subed-jump-to-subtitle-time-stop 3)
-                                       (subed-for-each-subtitle nil nil nil
-                                               (expect (looking-at "^[0-9]$") 
:to-be t)
-                                               (forward-line 2)
-                                               (kill-line)
-                                               (insert "HELlo."))
-                                       (expect (subed-subtitle-text 1) 
:to-equal "Hello.")
-                                       (expect (subed-subtitle-text 2) 
:to-equal "HEllo.")
-                                       (expect (subed-subtitle-text 3) 
:to-equal "HELlo.")
-                                       (expect (point) :to-equal 99))))
-               (describe "providing only the beginning"
-                       (it "goes forward."
-                               (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (subed-jump-to-subtitle-time-start 1)
-                                       (expect (point) :to-equal 3)
-                                       (let ((new-texts (list "A" "B" "C")))
-                                               (subed-for-each-subtitle 71 nil 
nil
-                                                       (expect (looking-at 
"^[0-9]$") :to-be t)
-                                                       (forward-line 2)
-                                                       (kill-line)
-                                                       (insert (pop 
new-texts))))
-                                       (expect (subed-subtitle-text 1) 
:to-equal "Foo.")
-                                       (expect (subed-subtitle-text 2) 
:to-equal "A")
-                                       (expect (subed-subtitle-text 3) 
:to-equal "B")
-                                       (expect (point) :to-equal 3)))
-                       (it "goes backward."
-                               (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (subed-jump-to-subtitle-time-stop 3)
-                                       (expect (point) :to-equal 95)
-                                       (let ((new-texts (list "A" "B" "C")))
-                                               (subed-for-each-subtitle 75 nil 
:reverse
-                                                       (expect (looking-at 
"^[0-9]$") :to-be t)
-                                                       (forward-line 2)
-                                                       (kill-line)
-                                                       (insert (pop 
new-texts))))
-                                       (expect (subed-subtitle-text 1) 
:to-equal "Foo.")
-                                       (expect (subed-subtitle-text 2) 
:to-equal "B")
-                                       (expect (subed-subtitle-text 3) 
:to-equal "A")
-                                       (expect (point) :to-equal 92)))
-                       )
-               (describe "providing beginning and end,"
-                       (describe "excluding subtitles above"
-                               (it "goes forward."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               
(subed-jump-to-subtitle-time-stop 1)
-                                               (expect (point) :to-equal 20)
-                                               (let ((new-texts (list "A" "B" 
"C")))
-                                                       
(subed-for-each-subtitle 71 79 nil
-                                                               (expect 
(looking-at "^[0-9]$") :to-be t)
-                                                               (forward-line 2)
-                                                               (kill-line)
-                                                               (insert (pop 
new-texts))))
-                                               (expect (subed-subtitle-text 1) 
:to-equal "Foo.")
-                                               (expect (subed-subtitle-text 2) 
:to-equal "A")
-                                               (expect (subed-subtitle-text 3) 
:to-equal "B")
-                                               (expect (point) :to-equal 20)))
-                               (it "goes backward."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               
(subed-jump-to-subtitle-time-start 3)
-                                               (expect (point) :to-equal 79)
-                                               (let ((new-texts (list "A" "B" 
"C")))
-                                                       
(subed-for-each-subtitle 39 77 :reverse
-                                                               (expect 
(looking-at "^[0-9]$") :to-be t)
-                                                               (forward-line 2)
-                                                               (kill-line)
-                                                               (insert (pop 
new-texts))))
-                                               (expect (subed-subtitle-text 1) 
:to-equal "Foo.")
-                                               (expect (subed-subtitle-text 2) 
:to-equal "B")
-                                               (expect (subed-subtitle-text 3) 
:to-equal "A")
-                                               (expect (point) :to-equal 76))))
-                       (describe "excluding subtitles below"
-                               (it "goes forward."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-text 3)
-                                               (expect (point) :to-equal 106)
-                                               (let ((new-texts (list "A" "B" 
"C")))
-                                                       
(subed-for-each-subtitle 5 76 nil
-                                                               (expect 
(looking-at "^[0-9]$") :to-be t)
-                                                               (forward-line 2)
-                                                               (kill-line)
-                                                               (insert (pop 
new-texts))))
-                                               (expect (subed-subtitle-text 1) 
:to-equal "A")
-                                               (expect (subed-subtitle-text 2) 
:to-equal "B")
-                                               (expect (subed-subtitle-text 3) 
:to-equal "Baz.")
-                                               (expect (point) :to-equal 100)))
-                               (it "goes backward."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               
(subed-jump-to-subtitle-time-stop 2)
-                                               (expect (point) :to-equal 58)
-                                               (let ((new-texts (list "A" "B" 
"C")))
-                                                       
(subed-for-each-subtitle 20 76 :reverse
-                                                               (expect 
(looking-at "^[0-9]$") :to-be t)
-                                                               (forward-line 2)
-                                                               (kill-line)
-                                                               (insert (pop 
new-texts))))
-                                               (expect (subed-subtitle-text 1) 
:to-equal "B")
-                                               (expect (subed-subtitle-text 2) 
:to-equal "A")
-                                               (expect (subed-subtitle-text 3) 
:to-equal "Baz.")
-                                               (expect (point) :to-equal 55)))
-                               )
-                       ))
-       (describe "Setting subtitle start time"
-               (describe "when this causes an overlap"
-                       (describe "when time boundaries are enforced by errors"
-                               ;; lexical binding gets confused at some point
-                               (before-all
-                                       (setq subed-enforce-time-boundaries 
'error
-                                                               
subed-subtitle-spacing 100))
-                               (it "continues when setting the first 
subtitle's start time."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 1)
-                                               (subed-set-subtitle-time-start 
30000)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal 30000)))
-                               (it "ignores the previous subtitle's stop time 
if there's enough spacing."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 2)
-                                               (let 
((subed-enforce-time-boundaries 'error)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       
(subed-set-subtitle-time-start (subed-timestamp-to-msecs "00:01:10,000")))
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal (subed-timestamp-to-msecs 
"00:01:10,000"))
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal (subed-timestamp-to-msecs 
"00:01:05,123"))))
-                               (it "ignores the previous subtitle's stop time 
if spacing is unspecified."
-                                       (let ((subed-subtitle-spacing nil)
-                                                               
(subed-enforce-time-boundaries 'error))
-                                               (with-temp-srt-buffer
-                                                       (insert mock-srt-data)
-                                                       
(subed-jump-to-subtitle-id 2)
-                                                       
(subed-set-subtitle-time-start (subed-timestamp-to-msecs "00:01:05,000"))
-                                                       (expect 
(subed-subtitle-msecs-start) :to-equal (subed-timestamp-to-msecs 
"00:01:05,000"))
-                                                       (expect 
(subed-subtitle-msecs-stop 1) :to-equal (subed-timestamp-to-msecs 
"00:01:05,123")))))
-                               (it "reports an error if the change violates 
spacing."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 2)
-                                               (let 
((subed-enforce-time-boundaries 'error)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       (expect 
(subed-set-subtitle-time-start (subed-timestamp-to-msecs "00:01:05,000")) 
:to-throw 'error)))))
-                       (describe "when time boundaries are enforced by 
adjusting"
-                               (it "continues when setting the first 
subtitle's start time."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 1)
-                                               (let 
((subed-enforce-time-boundaries 'adjust)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       
(subed-set-subtitle-time-start (subed-timestamp-to-msecs "00:01:00,000")))
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal (subed-timestamp-to-msecs 
"00:01:00,000"))))
-                               (it "ignores the previous subtitle's stop time 
if there's enough spacing."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 2)
-                                               (let 
((subed-enforce-time-boundaries 'adjust)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       
(subed-set-subtitle-time-start (subed-timestamp-to-msecs "00:01:10,000")))
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal (subed-timestamp-to-msecs 
"00:01:10,000"))
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal (subed-timestamp-to-msecs 
"00:01:05,123"))))
-                               (it "ignores the previous subtitle's stop time 
if spacing is unspecified."
-                                       (let ((subed-subtitle-spacing nil)
-                                                               
(subed-enforce-time-boundaries 'adjust))
-                                               (with-temp-srt-buffer
-                                                       (insert mock-srt-data)
-                                                       
(subed-jump-to-subtitle-id 2)
-                                                       
(subed-set-subtitle-time-start (subed-timestamp-to-msecs "00:01:05,000"))
-                                                       (expect 
(subed-subtitle-msecs-start) :to-equal (subed-timestamp-to-msecs 
"00:01:05,000"))
-                                                       (expect 
(subed-subtitle-msecs-stop 1) :to-equal (subed-timestamp-to-msecs 
"00:01:05,123")))))
-                               (it "adjusts the previous subtitle's stop time 
to maintain spacing."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 2)
-                                               (let 
((subed-enforce-time-boundaries 'adjust)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       
(subed-set-subtitle-time-start (subed-timestamp-to-msecs "00:01:05,000")))
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal (subed-timestamp-to-msecs 
"00:01:05,000"))
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal (subed-timestamp-to-msecs 
"00:01:04,900"))))
-                               (it "adjusts the previous subtitle's stop time, 
but not the one before it."
-                                       ;; TODO: Decide if we want to change 
this expectation
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 3)
-                                               (let 
((subed-enforce-time-boundaries 'adjust)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       
(subed-set-subtitle-time-start (subed-timestamp-to-msecs "00:01:05,000")))
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal (subed-timestamp-to-msecs 
"00:01:05,000"))
-                                               (expect 
(subed-subtitle-msecs-stop 2) :to-equal (subed-timestamp-to-msecs 
"00:01:04,900"))
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal (subed-timestamp-to-msecs 
"00:01:05,123"))))
-                               (it "adjusts the current subtitle's stop time 
to at least the start time."
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 2)
-                                               (let 
((subed-enforce-time-boundaries 'adjust)
-                                                                       
(subed-subtitle-spacing 100))
-                                                       
(subed-set-subtitle-time-start (subed-timestamp-to-msecs "00:02:11,000")))
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal (subed-timestamp-to-msecs 
"00:02:11,000"))
-                                               (expect 
(subed-subtitle-msecs-stop 1) :to-equal (subed-timestamp-to-msecs 
"00:01:05,123"))))))
-               (describe "when it will result in invalid duration"
-                       :var ((temp-time (+ (* 3 60 1000) (* 17 1000))))
-                       (it "throws an error when enforcing time boundaries."
-                               (let ((subed-enforce-time-boundaries 'error))
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 3)
-                                               (expect 
(subed-set-subtitle-time-start temp-time)
-                                                                               
:to-throw 'error))))
-                       (it "changes it when ignoring time boundaries."
-                               (let ((subed-enforce-time-boundaries nil))
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 3)
-                                               (subed-set-subtitle-time-start 
temp-time)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal temp-time))))
-                       (it "changes it when negative durations are allowed."
-                               (let ((subed-enforce-time-boundaries 'error))
-                                       (with-temp-srt-buffer
-                                               (insert mock-srt-data)
-                                               (subed-jump-to-subtitle-id 3)
-                                               (subed-set-subtitle-time-start 
temp-time nil t)
-                                               (expect 
(subed-subtitle-msecs-start) :to-equal temp-time)))))
-               (describe "when looping"
-                       (it "updates the loop stop time for the current 
subtitle."
-                               (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (subed-jump-to-subtitle-text 2)
-                                       (let ((subed-loop-seconds-before 1)
-                                                               
(subed-loop-seconds-after 1))
-                                               (subed--set-subtitle-loop)
-                                               (expect 
subed--subtitle-loop-start :to-equal (subed-timestamp-to-msecs "00:02:01,234"))
-                                               (expect 
subed--subtitle-loop-stop :to-equal (subed-timestamp-to-msecs "00:02:11,345"))
-                                               (subed-set-subtitle-time-start 
(subed-timestamp-to-msecs "00:02:00,234"))
-                                               (expect 
subed--subtitle-loop-start :to-equal (subed-timestamp-to-msecs "00:01:59,234"))
-                                               (expect 
subed--subtitle-loop-stop :to-equal (subed-timestamp-to-msecs 
"00:02:11,345")))))
-                       (it "leaves other subtitle loops alone."
-                               (with-temp-srt-buffer
-                                       (insert mock-srt-data)
-                                       (subed-jump-to-subtitle-text 2)
-                                       (let ((subed-loop-seconds-before 1)
-                                                               
(subed-loop-seconds-after 1))
-                                               (subed--set-subtitle-loop)
-                                               (expect 
subed--subtitle-loop-start :to-equal (subed-timestamp-to-msecs "00:02:01,234"))
-                                               (expect 
subed--subtitle-loop-stop :to-equal (subed-timestamp-to-msecs "00:02:11,345"))
-                                               (subed-jump-to-subtitle-text 1)
-                                               (subed-set-subtitle-time-start 
(subed-timestamp-to-msecs "00:01:00,000"))
-                                               (expect 
subed--subtitle-loop-start :to-equal (subed-timestamp-to-msecs "00:02:01,234"))
-                                               (expect 
subed--subtitle-loop-stop :to-equal (subed-timestamp-to-msecs 
"00:02:11,345")))))))
-       (describe "Setting subtitle stop time"
-               (describe "when this causes an overlap"
-                       (describe "when time boundaries are enforced by errors"
-                               :var ((subed-subtitle-spacing 100))
-                               (it "continues when setting the last subtitle's 
stop time."
-                                       (with-temp-srt-buffer
-                                        (insert mock-srt-data)
-                                        (subed-jump-to-subtitle-id 3)
-                                        (let ((subed-enforce-time-boundaries 
'error))
-                                                (subed-set-subtitle-time-stop 
(subed-timestamp-to-msecs "00:03:30,000")))
-                                        (expect (subed-subtitle-msecs-stop) 
:to-equal (subed-timestamp-to-msecs "00:03:30,000"))))
-                               (it "ignores the next subtitle's start time if 
there's enough spacing."
-                                       (with-temp-srt-buffer
-                                        (insert mock-srt-data)
-                                        (subed-jump-to-subtitle-id 2)
-                                        (let ((subed-enforce-time-boundaries 
'error))
-                                                (subed-set-subtitle-time-stop 
(subed-timestamp-to-msecs "00:03:01,000")))
-                                        (expect (subed-subtitle-msecs-stop) 
:to-equal (subed-timestamp-to-msecs "00:03:01,000"))
-                                        (expect (subed-subtitle-msecs-start 3) 
:to-equal (subed-timestamp-to-msecs "00:03:03,45"))))
-                               (it "ignores the next subtitle's start time if 
spacing is unspecified."
-                                       (let ((subed-subtitle-spacing nil)
-                                                               
(subed-enforce-time-boundaries 'error))
-                                               (with-temp-srt-buffer
-                                                (insert mock-srt-data)
-                                                (subed-jump-to-subtitle-id 2)
-                                                (let 
((subed-enforce-time-boundaries 'error))
-                                                        
(subed-set-subtitle-time-stop (subed-timestamp-to-msecs "00:03:05,000")))
-                                                (expect 
(subed-subtitle-msecs-stop) :to-equal (subed-timestamp-to-msecs "00:03:05,000"))
-                                                (expect 
(subed-subtitle-msecs-start 3) :to-equal (subed-timestamp-to-msecs 
"00:03:03,45")))))
-                               (it "reports an error if the change violates 
spacing."
-                                       (with-temp-srt-buffer
-                                        (insert mock-srt-data)
-                                        (subed-jump-to-subtitle-id 2)
-                                        (let ((subed-enforce-time-boundaries 
'error)
-                                                                
(subed-subtitle-spacing 100))
-                                                (expect 
(subed-set-subtitle-time-stop (subed-timestamp-to-msecs "00:03:05,000"))
-                                                                               
 :to-throw 'error)))))
-                       (describe "when time boundaries are enforced by 
adjusting"
-                               :var ((subed-subtitle-spacing 100))
-                               (it "continues when setting the last subtitle's 
stop time."
-                                       (with-temp-srt-buffer
-                                        (insert mock-srt-data)
-                                        (subed-jump-to-subtitle-id 3)
-                                        (let ((subed-enforce-time-boundaries 
'adjust))
-                                                (subed-set-subtitle-time-stop 
(subed-timestamp-to-msecs "00:03:30,000")))
-                                        (expect (subed-subtitle-msecs-stop) 
:to-equal (subed-timestamp-to-msecs "00:03:30,000"))))
-                               (it "ignores the next subtitle's start time if 
there's enough spacing."
-                                       (with-temp-srt-buffer
-                                        (insert mock-srt-data)
-                                        (subed-jump-to-subtitle-id 2)
-                                        (let ((subed-enforce-time-boundaries 
'adjust))
-                                                (subed-set-subtitle-time-stop 
(subed-timestamp-to-msecs "00:03:01,000")))
-                                        (expect (subed-subtitle-msecs-stop) 
:to-equal (subed-timestamp-to-msecs "00:03:01,000"))
-                                        (expect (subed-subtitle-msecs-start 3) 
:to-equal (subed-timestamp-to-msecs "00:03:03,45"))))
-                               (it "ignores the next subtitle's start time if 
spacing is unspecified."
-                                       (let ((subed-subtitle-spacing nil))
-                                               (with-temp-srt-buffer
-                                                (insert mock-srt-data)
-                                                (subed-jump-to-subtitle-id 2)
-                                                (let 
((subed-enforce-time-boundaries 'adjust))
-                                                        
(subed-set-subtitle-time-stop (subed-timestamp-to-msecs "00:03:05,000")))
-                                                (expect 
(subed-subtitle-msecs-stop) :to-equal (subed-timestamp-to-msecs "00:03:05,000"))
-                                                (expect 
(subed-subtitle-msecs-start 3) :to-equal (subed-timestamp-to-msecs 
"00:03:03,45")))))
-                               (it "adjusts the next subtitle's start time to 
maintain spacing."
-                                       (with-temp-srt-buffer
-                                        (insert mock-srt-data)
-                                        (subed-jump-to-subtitle-id 2)
-                                        (let ((subed-enforce-time-boundaries 
'adjust)
-                                                                
(subed-subtitle-spacing 100))
-                                                (subed-set-subtitle-time-stop 
(subed-timestamp-to-msecs "00:03:05,000")))
-                                        (expect (subed-subtitle-msecs-stop) 
:to-equal (subed-timestamp-to-msecs "00:03:05,000"))
-                                        (expect (subed-subtitle-msecs-start 3) 
:to-equal (subed-timestamp-to-msecs "00:03:05,100"))))
-                               (it "adjusts the next subtitle's stop time, but 
not the one after it."
-                                       ;; TODO: Decide if we want to change 
this expectation
-                                       (with-temp-srt-buffer
-                                        (insert mock-srt-data)
-                                        (subed-jump-to-subtitle-id 1)
-                                        (let ((subed-enforce-time-boundaries 
'adjust)
-                                                                
(subed-subtitle-spacing 100))
-                                                (subed-set-subtitle-time-stop 
(subed-timestamp-to-msecs "00:03:05,000")))
-                                        (expect (subed-subtitle-msecs-stop) 
:to-equal (subed-timestamp-to-msecs "00:03:05,000"))
-                                        (expect (subed-subtitle-msecs-start 2) 
:to-equal (subed-timestamp-to-msecs "00:03:05,100"))
-                                        (expect (subed-subtitle-msecs-start 3) 
:to-equal (subed-timestamp-to-msecs "00:03:03,45"))))))
-               (describe "when it will result in invalid duration"
-                       (it "adjusts the start time as needed."
-                               (with-temp-srt-buffer
-                                (insert mock-srt-data)
-                                (subed-jump-to-subtitle-id 3)
-                                (let ((subed-enforce-time-boundaries 'adjust)
-                                                        (temp-time 
(subed-timestamp-to-msecs "00:03:01,000")))
-                                        (subed-set-subtitle-time-stop 
temp-time)
-                                        (expect (subed-subtitle-msecs-start) 
:to-equal temp-time)
-                                        (expect (subed-subtitle-msecs-stop) 
:to-equal temp-time))))
-                       (it "throws an error when enforcing time boundaries."
-                               (with-temp-srt-buffer
-                                (insert mock-srt-data)
-                                (subed-jump-to-subtitle-id 3)
-                                (let ((subed-enforce-time-boundaries 'error)
-                                                        (temp-time 
(subed-timestamp-to-msecs "00:03:01,000")))
-                                        (expect (subed-set-subtitle-time-stop 
temp-time)
-                                                                        
:to-throw 'error))))
-                       (it "changes it when ignoring time boundaries."
-                               (with-temp-srt-buffer
-                                (insert mock-srt-data)
-                                (subed-jump-to-subtitle-id 3)
-                                (let ((subed-enforce-time-boundaries nil)
-                                                        (temp-time 
(subed-timestamp-to-msecs "00:03:01,000")))
-                                        (subed-set-subtitle-time-stop 
temp-time)
-                                        (expect (subed-subtitle-msecs-stop) 
:to-equal temp-time))))
-                       (it "changes it when negative durations are allowed."
-                               (with-temp-srt-buffer
-                                (insert mock-srt-data)
-                                (subed-jump-to-subtitle-id 3)
-                                (let ((subed-enforce-time-boundaries 'error)
-                                                        (temp-time 
(subed-timestamp-to-msecs "00:03:01,000")))
-                                        (subed-set-subtitle-time-stop 
temp-time nil t)
                                         (expect (subed-subtitle-msecs-stop) 
:to-equal temp-time)))))
                (describe "when looping"
                        (it "updates the loop stop time for the current 
subtitle."



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