[PATCH] Add min/max tests. (4/4)

[Edward Jason Riedy]

This adds a bunch of regression test cases for the previous code.
It also adds one more that checks that the same comparison is used
throughout a complex matrix.  Previously, Octave would magically
revert back to the real comparison (directed rather than magnitude)
if a column contained only real numbers.  That's surprising.

Jason

test/ChangeLog
        * octave.test/arith/arith.exp: Add tests max-5.m through max-9.m,
        min-5.m through min-9.m.  All tests succeed with "ans = 1"
        * octave.test/arith/max-5.m: Test (CMatrix, 'ignore-nan') parameters.
        * octave.test/arith/max-6.m: Test (dMatrix, 'prefer-nan') parameters.
        * octave.test/arith/max-7.m: Test (scalar, scalar, opt) parameters.
        * octave.test/arith/max-8.m: Test (CMatrix, CMatrix, opt) parameters.
        * octave.test/arith/max-9.m: Test that the same comparison criteria 
        are used across an entire complex matrix.
        * octave.test/arith/min-5.m: Equivalent to max-5.m.
        * octave.test/arith/min-6.m: Equivalent to max-6.m.
        * octave.test/arith/min-7.m: Equivalent to max-7.m.
        * octave.test/arith/min-8.m: Equivalent to max-8.m.
        * octave.test/arith/min-9.m: Equivalent to max-9.m.

--- octave.orig/test/octave.test/arith/arith.exp        Fri Oct 23 19:56:25 1998
+++ octave.2/test/octave.test/arith/arith.exp   Sat Sep  2 20:09:46 2000
@@ -172,6 +172,26 @@
 set prog_output "\n... max:.*"
 do_test max-4.m
 
+set test max-5
+set prog_output "ans = 1"
+do_test max-5.m
+
+set test max-6
+set prog_output "ans = 1"
+do_test max-6.m
+
+set test max-7
+set prog_output "ans = 1"
+do_test max-7.m
+
+set test max-8
+set prog_output "ans = 1"
+do_test max-8.m
+
+set test max-9
+set prog_output "ans = 1"
+do_test max-9.m
+
 set test min-1
 set prog_output "ans = 1"
 do_test min-1.m
@@ -187,6 +207,26 @@
 set test min-4
 set prog_output "\n... min:.*"
 do_test min-4.m
+
+set test min-5
+set prog_output "ans = 1"
+do_test min-5.m
+
+set test min-6
+set prog_output "ans = 1"
+do_test min-6.m
+
+set test min-7
+set prog_output "ans = 1"
+do_test min-7.m
+
+set test min-8
+set prog_output "ans = 1"
+do_test min-8.m
+
+set test min-9
+set prog_output "ans = 1"
+do_test min-9.m
 
 set test pow2-1
 set prog_output "ans = 1"
diff --new-file -r -u octave.orig/test/octave.test/arith/max-5.m 
octave.2/test/octave.test/arith/max-5.m
--- octave.orig/test/octave.test/arith/max-5.m  Wed Dec 31 16:00:00 1969
+++ octave.2/test/octave.test/arith/max-5.m     Sat Sep  2 20:09:08 2000
@@ -0,0 +1,3 @@
+# test complex matrix max for ignore-nan
+# see comments in min-5.m
+all(max ([1, NaN; -2i, 3], 'ignore-nan') == [-2i, 3])
diff --new-file -r -u octave.orig/test/octave.test/arith/max-6.m 
octave.2/test/octave.test/arith/max-6.m
--- octave.orig/test/octave.test/arith/max-6.m  Wed Dec 31 16:00:00 1969
+++ octave.2/test/octave.test/arith/max-6.m     Sat Sep  2 20:09:08 2000
@@ -0,0 +1,3 @@
+# test double matrix max for prefer-nan
+a = max ([1, NaN; 2, 3], 'prefer-nan');
+a(1) == 2 && isnan(a(2))
diff --new-file -r -u octave.orig/test/octave.test/arith/max-7.m 
octave.2/test/octave.test/arith/max-7.m
--- octave.orig/test/octave.test/arith/max-7.m  Wed Dec 31 16:00:00 1969
+++ octave.2/test/octave.test/arith/max-7.m     Sat Sep  2 20:09:08 2000
@@ -0,0 +1,2 @@
+# test double scalar max
+isnan(max (1, NaN, 'prefer-nan')) && !isnan(max (1, NaN, 'ignore-nan')) 
diff --new-file -r -u octave.orig/test/octave.test/arith/max-8.m 
octave.2/test/octave.test/arith/max-8.m
--- octave.orig/test/octave.test/arith/max-8.m  Wed Dec 31 16:00:00 1969
+++ octave.2/test/octave.test/arith/max-8.m     Sat Sep  2 20:09:08 2000
@@ -0,0 +1,5 @@
+# test matrix-matrix max, complex 
+all(all(isnan(max([1, -1; 0, 3i], [NaN, NaN; NaN, NaN], \
+                 'prefer-nan')))) && \
+all(all(!isnan(max([1, -1; 0, 3i], [NaN, NaN; NaN, NaN], \
+                  'ignore-nan'))))
diff --new-file -r -u octave.orig/test/octave.test/arith/max-9.m 
octave.2/test/octave.test/arith/max-9.m
--- octave.orig/test/octave.test/arith/max-9.m  Wed Dec 31 16:00:00 1969
+++ octave.2/test/octave.test/arith/max-9.m     Sat Sep  2 20:09:08 2000
@@ -0,0 +1,2 @@
+# check that the definition of max is consistent across a complex matrix
+all(max([i, 1; 0, -5]) == [i, -5])
\ No newline at end of file
diff --new-file -r -u octave.orig/test/octave.test/arith/min-5.m 
octave.2/test/octave.test/arith/min-5.m
--- octave.orig/test/octave.test/arith/min-5.m  Wed Dec 31 16:00:00 1969
+++ octave.2/test/octave.test/arith/min-5.m     Sat Sep  2 20:09:08 2000
@@ -0,0 +1,6 @@
+# test complex matrix min for ignore-nan
+# (If this fails, check liboctave/mx-reductions.h::PredReducer.  Ensure
+# either tmp_val is initialized to an identity for the predicate in
+# begin() or that apply() has appropriate isnan checks to catch the
+# case where tmp_val is initialized to NaN.)
+all(min ([1, NaN; 2i, 3], 'ignore-nan') == [1, 3])
diff --new-file -r -u octave.orig/test/octave.test/arith/min-6.m 
octave.2/test/octave.test/arith/min-6.m
--- octave.orig/test/octave.test/arith/min-6.m  Wed Dec 31 16:00:00 1969
+++ octave.2/test/octave.test/arith/min-6.m     Sat Sep  2 20:09:08 2000
@@ -0,0 +1,3 @@
+# test double matrix min for prefer-nan
+a = min ([1, NaN; 2, 3], 'prefer-nan');
+a(1) == 1 && isnan(a(2))
diff --new-file -r -u octave.orig/test/octave.test/arith/min-7.m 
octave.2/test/octave.test/arith/min-7.m
--- octave.orig/test/octave.test/arith/min-7.m  Wed Dec 31 16:00:00 1969
+++ octave.2/test/octave.test/arith/min-7.m     Sat Sep  2 20:09:08 2000
@@ -0,0 +1,2 @@
+# test double scalar min
+isnan(min (1, NaN, 'prefer-nan')) && !isnan(min (1, NaN, 'ignore-nan')) 
diff --new-file -r -u octave.orig/test/octave.test/arith/min-8.m 
octave.2/test/octave.test/arith/min-8.m
--- octave.orig/test/octave.test/arith/min-8.m  Wed Dec 31 16:00:00 1969
+++ octave.2/test/octave.test/arith/min-8.m     Sat Sep  2 20:09:08 2000
@@ -0,0 +1,5 @@
+# test matrix-matrix min, complex 
+all(all(isnan(min([1, -1; 0, 3i], [NaN, NaN; NaN, NaN], \
+                 'prefer-nan')))) && \
+all(all(!isnan(min([1, -1; 0, 3i], [NaN, NaN; NaN, NaN], \
+                  'ignore-nan'))))
diff --new-file -r -u octave.orig/test/octave.test/arith/min-9.m 
octave.2/test/octave.test/arith/min-9.m
--- octave.orig/test/octave.test/arith/min-9.m  Wed Dec 31 16:00:00 1969
+++ octave.2/test/octave.test/arith/min-9.m     Sat Sep  2 20:09:08 2000
@@ -0,0 +1,2 @@
+# check that the definition of min is consistent across a complex matrix
+all(min([i, 1; 3, -5]) == [i, 1])
\ No newline at end of file