xref: /qemu/tests/qemu-iotests/023 (revision 727385c4) 
1#!/usr/bin/env bash
2# group: rw
3#
4# qcow2 pattern test with various cluster sizes
5#
6# Copyright (C) 2009 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=kwolf@redhat.com
24
25seq=`basename $0`
26echo "QA output created by $seq"
27
28status=1	# failure is the default!
29
30_cleanup()
31{
32	_cleanup_test_img
33}
34trap "_cleanup; exit \$status" 0 1 2 3 15
35
36# get standard environment, filters and checks
37. ./common.rc
38. ./common.filter
39. ./common.pattern
40
41# much of this could be generic for any format supporting compression.
42_supported_fmt qcow qcow2
43_supported_proto file
44_supported_os Linux
45
46TEST_OFFSETS="0 4294967296"
47TEST_OPS="writev read write readv"
48
49# Can't use 512 byte clusters, the tests use cluster halves
50CLUSTER_SIZES="1024 4096 16384 65536"
51
52for CLUSTER_SIZE in $CLUSTER_SIZES; do
53
54    echo "Creating new image; cluster size: $CLUSTER_SIZE"
55    echo
56
57    _make_test_img 8G
58
59    echo "Testing empty image"
60    echo
61
62    for offset in $TEST_OFFSETS; do
63        echo "At offset $offset:"
64        for op in $TEST_OPS; do
65            io_test $op $offset $CLUSTER_SIZE 3
66        done
67        _check_test_img
68    done
69
70    echo "Compressing image"
71    echo
72
73    mv "$TEST_IMG" "$TEST_IMG.orig"
74    $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -c "$TEST_IMG.orig" "$TEST_IMG"
75
76    echo "Testing compressed image"
77    echo
78
79    for offset in $TEST_OFFSETS; do
80        echo "With offset $offset:"
81        for op in read readv; do
82            io_test $op $offset $CLUSTER_SIZE 3
83        done
84        _check_test_img
85    done
86
87    echo "Testing compressed image with odd offsets"
88    echo
89    for offset in $TEST_OFFSETS; do
90        # Some odd offset (1 sector), so tests will write to areas occupied partly
91        # by old (compressed) data and empty clusters
92        offset=$((offset + 512))
93        echo "With offset $offset:"
94        for op in $TEST_OPS; do
95            io_test $op $offset $CLUSTER_SIZE 3
96        done
97        _check_test_img
98    done
99
100    echo "Creating another new image"
101    echo
102
103    _make_test_img 8G
104
105    echo "More complex patterns"
106    echo
107
108    for offset in $TEST_OFFSETS; do
109        echo test2: With offset $offset
110        io_test2 $offset $CLUSTER_SIZE 4
111        _check_test_img
112    done
113
114done
115
116# success, all done
117echo "*** done"
118rm -f $seq.full
119status=0
120