1#!/usr/bin/env bash
2##
3## qemu-img compare test
4##
5##
6## Copyright (C) 2013 Red Hat, Inc.
7##
8## This program is free software; you can redistribute it and/or modify
9## it under the terms of the GNU General Public License as published by
10## the Free Software Foundation; either version 2 of the License, or
11## (at your option) any later version.
12##
13## This program is distributed in the hope that it will be useful,
14## but WITHOUT ANY WARRANTY; without even the implied warranty of
15## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16## GNU General Public License for more details.
17##
18## You should have received a copy of the GNU General Public License
19## along with this program.  If not, see <http://www.gnu.org/licenses/>.
20##
21#
22# creator
23owner=mrezanin@redhat.com
24
25seq=`basename $0`
26echo "QA output created by $seq"
27
28status=1        # failure is the default!
29
30_cleanup()
31{
32    echo "Cleanup"
33    _cleanup_test_img
34    rm "${TEST_IMG_FILE2}"
35}
36trap "_cleanup; exit \$status" 0 1 2 3 15
37
38_compare()
39{
40    $QEMU_IMG compare $QEMU_IMG_EXTRA_ARGS "$@" "$TEST_IMG" "${TEST_IMG2}"
41    echo $?
42}
43
44# get standard environment, filters and checks
45. ./common.rc
46. ./common.filter
47. ./common.pattern
48
49_supported_fmt raw qcow2 qed luks
50_supported_proto file
51_supported_os Linux
52
53# Remove once all tests are fixed to use TEST_IMG_FILE
54# correctly and common.rc sets it unconditionally
55test -z "$TEST_IMG_FILE" && TEST_IMG_FILE=$TEST_IMG
56
57# Setup test basic parameters
58TEST_IMG2=$TEST_IMG.2
59TEST_IMG_FILE2=$TEST_IMG_FILE.2
60CLUSTER_SIZE=4096
61size=128M
62
63_make_test_img $size
64io_pattern write 524288 $CLUSTER_SIZE $CLUSTER_SIZE 4 45
65
66# Compare identical images
67cp "$TEST_IMG_FILE" "${TEST_IMG_FILE2}"
68_compare
69_compare -q
70
71# Compare images with different size
72if [ "$IMGOPTSSYNTAX" = "true" ]; then
73    $QEMU_IMG resize $QEMU_IMG_EXTRA_ARGS "$TEST_IMG" +32M
74else
75    $QEMU_IMG resize -f $IMGFMT "$TEST_IMG" +32M
76fi
77# Ensure extended space is zero-initialized
78$QEMU_IO "$TEST_IMG" -c "write -z $size 32M" | _filter_qemu_io
79
80_compare
81_compare -s
82
83# Compare images with different content
84io_pattern write 1228800 $CLUSTER_SIZE 0 1 67
85_compare
86io_pattern write 0 $CLUSTER_SIZE 0 1 123
87_compare
88
89# Test unaligned case of mismatch offsets in allocated clusters
90_make_test_img $size
91io_pattern write 0 512 0 1 100
92cp "$TEST_IMG_FILE" "$TEST_IMG_FILE2"
93io_pattern write 512 512 0 1 101
94_compare
95
96# Cleanup
97status=0
98