xref: /qemu/tests/qemu-iotests/023 (revision abff1abf) 
1#!/usr/bin/env bash
2#
3# qcow2 pattern test with various cluster sizes
4#
5# Copyright (C) 2009 Red Hat, Inc.
6#
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.
11#
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.
16#
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/>.
19#
20
21# creator
22owner=kwolf@redhat.com
23
24seq=`basename $0`
25echo "QA output created by $seq"
26
27status=1	# failure is the default!
28
29_cleanup()
30{
31	_cleanup_test_img
32}
33trap "_cleanup; exit \$status" 0 1 2 3 15
34
35# get standard environment, filters and checks
36. ./common.rc
37. ./common.filter
38. ./common.pattern
39
40# much of this could be generic for any format supporting compression.
41_supported_fmt qcow qcow2
42_supported_proto file
43_supported_os Linux
44
45TEST_OFFSETS="0 4294967296"
46TEST_OPS="writev read write readv"
47
48# Can't use 512 byte clusters, the tests use cluster halves
49CLUSTER_SIZES="1024 4096 16384 65536"
50
51for CLUSTER_SIZE in $CLUSTER_SIZES; do
52
53    echo "Creating new image; cluster size: $CLUSTER_SIZE"
54    echo
55
56    _make_test_img 8G
57
58    echo "Testing empty image"
59    echo
60
61    for offset in $TEST_OFFSETS; do
62        echo "At offset $offset:"
63        for op in $TEST_OPS; do
64            io_test $op $offset $CLUSTER_SIZE 3
65        done
66        _check_test_img
67    done
68
69    echo "Compressing image"
70    echo
71
72    mv "$TEST_IMG" "$TEST_IMG.orig"
73    $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -c "$TEST_IMG.orig" "$TEST_IMG"
74
75    echo "Testing compressed image"
76    echo
77
78    for offset in $TEST_OFFSETS; do
79        echo "With offset $offset:"
80        for op in read readv; do
81            io_test $op $offset $CLUSTER_SIZE 3
82        done
83        _check_test_img
84    done
85
86    echo "Testing compressed image with odd offsets"
87    echo
88    for offset in $TEST_OFFSETS; do
89        # Some odd offset (1 sector), so tests will write to areas occupied partly
90        # by old (compressed) data and empty clusters
91        offset=$((offset + 512))
92        echo "With offset $offset:"
93        for op in $TEST_OPS; do
94            io_test $op $offset $CLUSTER_SIZE 3
95        done
96        _check_test_img
97    done
98
99    echo "Creating another new image"
100    echo
101
102    _make_test_img 8G
103
104    echo "More complex patterns"
105    echo
106
107    for offset in $TEST_OFFSETS; do
108        echo test2: With offset $offset
109        io_test2 $offset $CLUSTER_SIZE 4
110        _check_test_img
111    done
112
113done
114
115# success, all done
116echo "*** done"
117rm -f $seq.full
118status=0
119