[Qemu-devel] [PATCH v7 13/14] iotests: Add test for qcow2's bdrv_make_empty

[Max Reitz]

Add a test for qcow2's fast bdrv_make_empty implementation on images
without internal snapshots.

Signed-off-by: Max Reitz <address@hidden>
---
 tests/qemu-iotests/093     | 72 ++++++++++++++++++++++++++++++++++++++++++++++
 tests/qemu-iotests/093.out | 26 +++++++++++++++++
 tests/qemu-iotests/group   |  1 +
 3 files changed, 99 insertions(+)
 create mode 100755 tests/qemu-iotests/093
 create mode 100644 tests/qemu-iotests/093.out

diff --git a/tests/qemu-iotests/093 b/tests/qemu-iotests/093
new file mode 100755
index 0000000..85b8a42
--- /dev/null
+++ b/tests/qemu-iotests/093
@@ -0,0 +1,72 @@
+#!/bin/bash
+#
+# Test qcow2's bdrv_make_empty for images without internal snapshots
+#
+# Copyright (C) 2014 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"
+tmp=/tmp/$$
+status=1       # failure is the default!
+
+_cleanup()
+{
+    _cleanup_test_img
+    rm -f "$TEST_DIR/blkdebug.conf"
+}
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+. ./common.pattern
+
+_supported_fmt qcow2
+_supported_proto file
+_supported_os Linux
+
+
+for event in l1_update reftable_update; do
+
+echo
+echo "=== $event ==="
+echo
+
+TEST_IMG="$TEST_IMG.base" _make_test_img 64M
+_make_test_img -b "$TEST_IMG.base" 64M
+
+cat > "$TEST_DIR/blkdebug.conf" <<EOF
+[inject-error]
+event = "$event"
+EOF
+
+$QEMU_IMG commit "blkdebug:$TEST_DIR/blkdebug.conf:$TEST_IMG"
+
+_check_test_img
+
+done
+
+
+# success, all done
+echo "*** done"
+rm -f $seq.full
+status=0
diff --git a/tests/qemu-iotests/093.out b/tests/qemu-iotests/093.out
new file mode 100644
index 0000000..94399bc
--- /dev/null
+++ b/tests/qemu-iotests/093.out
@@ -0,0 +1,26 @@
+QA output created by 093
+
+=== l1_update ===
+
+Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=67108864 
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 
backing_file='TEST_DIR/t.IMGFMT.base' 
+qemu-img: Could not empty 
blkdebug:/home/maxx/projects/qemu/tests/qemu-iotests/scratch/blkdebug.conf:/home/maxx/projects/qemu/tests/qemu-iotests/scratch/t.qcow2:
 Input/output error
+Leaked cluster 4 refcount=1 reference=0
+Leaked cluster 5 refcount=1 reference=0
+Leaked cluster 6 refcount=1 reference=0
+
+3 leaked clusters were found on the image.
+This means waste of disk space, but no harm to data.
+
+=== reftable_update ===
+
+Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=67108864 
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 
backing_file='TEST_DIR/t.IMGFMT.base' 
+qemu-img: Could not empty 
blkdebug:/home/maxx/projects/qemu/tests/qemu-iotests/scratch/blkdebug.conf:/home/maxx/projects/qemu/tests/qemu-iotests/scratch/t.qcow2:
 Input/output error
+Leaked cluster 3 refcount=1 reference=0
+Leaked cluster 4 refcount=1 reference=0
+Leaked cluster 5 refcount=1 reference=0
+
+3 leaked clusters were found on the image.
+This means waste of disk space, but no harm to data.
+*** done
diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
index 51ebcfe..a0cd732 100644
--- a/tests/qemu-iotests/group
+++ b/tests/qemu-iotests/group
@@ -97,3 +97,4 @@
 088 rw auto
 090 rw auto quick
 092 rw auto backing
+093 rw auto backing quick
-- 
1.9.2