MAINTAINERS: Extend the device fuzzing section
[qemu/ar7.git] / tests / qemu-iotests / 106
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1 #!/usr/bin/env bash
3 # Test preallocated resize of raw images
5 # Copyright (C) 2017 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/>.
21 # creator
22 owner=mreitz@redhat.com
24 seq=$(basename $0)
25 echo "QA output created by $seq"
27 status=1 # failure is the default!
29 _cleanup()
31 _cleanup_test_img
33 trap "_cleanup; exit \$status" 0 1 2 3 15
35 # get standard environment and filters
36 . ./common.rc
37 . ./common.filter
39 _supported_fmt raw
40 _supported_proto file
41 _supported_os Linux
43 # in kB
44 CREATION_SIZE=128
45 GROWTH_SIZE=256
47 echo '=== Testing image growth ==='
49 for create_mode in off falloc full; do
50 for growth_mode in off falloc full; do
51 echo
52 echo "--- create_mode=$create_mode growth_mode=$growth_mode ---"
54 # Our calculation below assumes kilobytes as unit for the actual size.
55 # Disable the extent size hint because it would give us a result in
56 # megabytes.
57 _make_test_img -o "preallocation=$create_mode,extent_size_hint=0" ${CREATION_SIZE}K
58 $QEMU_IMG resize -f "$IMGFMT" --preallocation=$growth_mode "$TEST_IMG" +${GROWTH_SIZE}K
60 expected_size=0
61 if [ $create_mode != off ]; then
62 expected_size=$CREATION_SIZE
64 if [ $growth_mode != off ]; then
65 expected_size=$((expected_size + $GROWTH_SIZE))
68 actual_size=$($QEMU_IMG info -f "$IMGFMT" "$TEST_IMG" | grep 'disk size')
69 actual_size=$(echo "$actual_size" | sed -e 's/^[^0-9]*\([0-9]\+\).*$/\1/')
71 # The actual size may exceed the expected size, depending on the file
72 # system. Therefore we just test that the actual size is at least what
73 # we expect.
74 if [ $actual_size -lt $expected_size ]; then
75 echo "ERROR: Image should have at least ${expected_size}K, but has ${actual_size}K"
77 done
78 done
80 echo
81 echo '=== Testing image shrinking ==='
83 # None of this should work except for "off", because other modes cannot be used
84 # for shrinking
85 for growth_mode in falloc full off; do
86 echo
87 echo "--- growth_mode=$growth_mode ---"
88 $QEMU_IMG resize -f "$IMGFMT" --shrink --preallocation=$growth_mode "$TEST_IMG" -${GROWTH_SIZE}K
89 done
91 echo
92 echo '=== Testing image growth on 2G empty image ==='
94 for growth_mode in falloc full; do
95 echo
96 echo "--- growth_mode=$growth_mode ---"
98 # Maybe we want to do an lseek() to the end of the file before the
99 # preallocation; if the file has a length of 2 GB, that would
100 # return an integer that overflows to negative when put into a
101 # plain int. We should use the correct type for the result, and
102 # this tests we do.
104 _make_test_img -o "extent_size_hint=0" 2G
105 $QEMU_IMG resize -f "$IMGFMT" --preallocation=$growth_mode "$TEST_IMG" +${GROWTH_SIZE}K
107 actual_size=$($QEMU_IMG info -f "$IMGFMT" "$TEST_IMG" | grep 'disk size')
108 actual_size=$(echo "$actual_size" | sed -e 's/^[^0-9]*\([0-9]\+\).*$/\1/')
110 if [ $actual_size -lt $GROWTH_SIZE ]; then
111 echo "ERROR: Image should have at least ${GROWTH_SIZE}K, but has ${actual_size}K"
113 done
115 # success, all done
116 echo '*** done'
117 rm -f $seq.full
118 status=0