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[Qemu-devel] [PULL 18/24] qemu-iotests: Test change-backing-file command
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PULL 18/24] qemu-iotests: Test change-backing-file command |
Date: |
Tue, 26 Sep 2017 16:21:27 +0200 |
This involves a temporary read-write reopen if the backing file link in
the middle of a backing file chain should be changed and is therefore a
good test for the latest bdrv_reopen() vs. op blockers fixes.
Signed-off-by: Kevin Wolf <address@hidden>
---
tests/qemu-iotests/195 | 92 ++++++++++++++++++++++++++++++++++++++++++++++
tests/qemu-iotests/195.out | 78 +++++++++++++++++++++++++++++++++++++++
tests/qemu-iotests/group | 1 +
3 files changed, 171 insertions(+)
create mode 100755 tests/qemu-iotests/195
create mode 100644 tests/qemu-iotests/195.out
diff --git a/tests/qemu-iotests/195 b/tests/qemu-iotests/195
new file mode 100755
index 0000000000..05a239cbf5
--- /dev/null
+++ b/tests/qemu-iotests/195
@@ -0,0 +1,92 @@
+#!/bin/bash
+#
+# Test change-backing-file command
+#
+# Copyright (C) 2017 Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+# creator
address@hidden
+
+seq=`basename $0`
+echo "QA output created by $seq"
+
+here=`pwd`
+status=1 # failure is the default!
+
+_cleanup()
+{
+ _cleanup_test_img
+ rm -f "$TEST_IMG.mid"
+}
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+
+_supported_fmt qcow2
+_supported_proto file
+_supported_os Linux
+
+function do_run_qemu()
+{
+ echo Testing: "$@" | _filter_imgfmt
+ $QEMU -nographic -qmp-pretty stdio -serial none "$@"
+ echo
+}
+
+function run_qemu()
+{
+ do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_qmp \
+ | _filter_qemu_io | _filter_generated_node_ids
+}
+
+size=64M
+TEST_IMG="$TEST_IMG.base" _make_test_img $size
+TEST_IMG="$TEST_IMG.mid" _make_test_img -b "$TEST_IMG.base"
+_make_test_img -b "$TEST_IMG.mid"
+
+echo
+echo "Change backing file of mid (opened read-only)"
+echo
+
+run_qemu -drive if=none,file="$TEST_IMG",backing.node-name=mid <<EOF
+{"execute":"qmp_capabilities"}
+{"execute":"change-backing-file",
"arguments":{"device":"none0","image-node-name":"mid","backing-file":"/dev/null"}}
+{"execute":"quit"}
+EOF
+
+TEST_IMG="$TEST_IMG.mid" _img_info
+
+echo
+echo "Change backing file of top (opened writable)"
+echo
+
+TEST_IMG="$TEST_IMG.mid" _make_test_img -b "$TEST_IMG.base"
+
+run_qemu -drive if=none,file="$TEST_IMG",node-name=top <<EOF
+{"execute":"qmp_capabilities"}
+{"execute":"change-backing-file",
"arguments":{"device":"none0","image-node-name":"top","backing-file":"/dev/null"}}
+{"execute":"quit"}
+EOF
+
+_img_info
+
+# success, all done
+echo "*** done"
+rm -f $seq.full
+status=0
diff --git a/tests/qemu-iotests/195.out b/tests/qemu-iotests/195.out
new file mode 100644
index 0000000000..7613575c64
--- /dev/null
+++ b/tests/qemu-iotests/195.out
@@ -0,0 +1,78 @@
+QA output created by 195
+Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=67108864
+Formatting 'TEST_DIR/t.IMGFMT.mid', fmt=IMGFMT size=67108864
backing_file=TEST_DIR/t.IMGFMT.base
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
backing_file=TEST_DIR/t.IMGFMT.mid
+
+Change backing file of mid (opened read-only)
+
+Testing: -drive if=none,file=TEST_DIR/t.IMGFMT,backing.node-name=mid
+{
+ QMP_VERSION
+}
+{
+ "return": {
+ }
+}
+{
+ "return": {
+ }
+}
+{
+ "return": {
+ }
+}
+{
+ "timestamp": {
+ "seconds": TIMESTAMP,
+ "microseconds": TIMESTAMP
+ },
+ "event": "SHUTDOWN",
+ "data": {
+ "guest": false
+ }
+}
+
+image: TEST_DIR/t.IMGFMT.mid
+file format: IMGFMT
+virtual size: 64M (67108864 bytes)
+cluster_size: 65536
+backing file: /dev/null
+backing file format: IMGFMT
+
+Change backing file of top (opened writable)
+
+Formatting 'TEST_DIR/t.IMGFMT.mid', fmt=IMGFMT size=67108864
backing_file=TEST_DIR/t.IMGFMT.base
+Testing: -drive if=none,file=TEST_DIR/t.IMGFMT,node-name=top
+{
+ QMP_VERSION
+}
+{
+ "return": {
+ }
+}
+{
+ "return": {
+ }
+}
+{
+ "return": {
+ }
+}
+{
+ "timestamp": {
+ "seconds": TIMESTAMP,
+ "microseconds": TIMESTAMP
+ },
+ "event": "SHUTDOWN",
+ "data": {
+ "guest": false
+ }
+}
+
+image: TEST_DIR/t.IMGFMT
+file format: IMGFMT
+virtual size: 64M (67108864 bytes)
+cluster_size: 65536
+backing file: /dev/null
+backing file format: IMGFMT
+*** done
diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
index 94e764865a..108339cd03 100644
--- a/tests/qemu-iotests/group
+++ b/tests/qemu-iotests/group
@@ -189,3 +189,4 @@
190 rw auto quick
192 rw auto quick
194 rw auto migration quick
+195 rw auto quick
--
2.13.5
- [Qemu-devel] [PULL 06/24] iotests: use -ccw on s390x for 051, (continued)
- [Qemu-devel] [PULL 06/24] iotests: use -ccw on s390x for 051, Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 08/24] iotests: Print full path of bad output if mismatch, Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 05/24] iotests: use -ccw on s390x for 040, 139, and 182, Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 03/24] file-posix: Clear out first sector in hdev_create, Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 10/24] block/throttle-groups.c: allocate RestartData on the heap, Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 13/24] block: Add reopen_queue to bdrv_child_perm(), Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 12/24] qemu-io: Drop write permissions before read-only reopen, Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 09/24] throttle: Assert that bkt->max is valid in throttle_compute_wait(), Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 07/24] iotests: use virtio aliases for 067, Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 17/24] block: Fix permissions after bdrv_reopen(), Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 18/24] qemu-iotests: Test change-backing-file command,
Kevin Wolf <=
- [Qemu-devel] [PULL 04/24] docs: add qemu-block-drivers(7) man page, Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 15/24] block: Base permissions on rw state after reopen, Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 11/24] block: Clean up some bad code in the vvfat driver, Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 14/24] block: Add reopen queue to bdrv_check_perm(), Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 16/24] block: reopen: Queue children after their parents, Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 19/24] iotests: fix 181: enable postcopy-ram capability on target, Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 22/24] qcow2: add shrink image support, Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 21/24] qcow2: add qcow2_cache_discard, Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 23/24] qemu-iotests: add shrinking image test, Kevin Wolf, 2017/09/26
- [Qemu-devel] [PULL 20/24] qemu-img: add --shrink flag for resize, Kevin Wolf, 2017/09/26