3 # qcow2 pattern test, empty and compressed image
5 # Copyright (C) 2009 Red Hat, Inc.
7 # This program is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 2 of the License, or
10 # (at your option) any later version.
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
25 echo "QA output created by $seq"
29 status=1 # failure is the default!
35 trap "_cleanup; exit \$status" 0 1 2 3 15
37 # get standard environment, filters and checks
42 # much of this could be generic for any format supporting compression.
43 _supported_fmt qcow qcow2
46 TEST_OFFSETS="0 4294967296"
47 TEST_OPS="writev read write readv"
51 echo "Testing empty image"
54 for offset in $TEST_OFFSETS; do
55 echo "At offset $offset:"
56 for op in $TEST_OPS; do
63 echo "Compressing image"
66 mv $TEST_IMG $TEST_IMG.orig
67 $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -c $TEST_IMG.orig $TEST_IMG
69 echo "Testing compressed image"
72 for offset in $TEST_OFFSETS; do
73 echo "With offset $offset:"
74 for op in read readv; do
80 echo "Testing compressed image with odd offsets"
82 for offset in $TEST_OFFSETS; do
83 # Some odd offset (1 sector), so tests will write to areas occupied partly
84 # by old (compressed) data and empty clusters
85 offset=$((offset + 512))
86 echo "With offset $offset:"
87 for op in $TEST_OPS; do