projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| e4d7019e | 1 | #!/usr/bin/env bash |
| 9dd003a9 | 2 | # group: rw auto quick |
| e4d7019e AG |
3 | # |
| 4 | # Test resizing a qcow2 image with a backing file | |
| 5 | # | |
| 6 | # Copyright (C) 2020 Igalia, S.L. | |
| 7 | # Author: Alberto Garcia <[email protected]> | |
| 8 | # | |
| 9 | # This program is free software; you can redistribute it and/or modify | |
| 10 | # it under the terms of the GNU General Public License as published by | |
| 11 | # the Free Software Foundation; either version 2 of the License, or | |
| 12 | # (at your option) any later version. | |
| 13 | # | |
| 14 | # This program is distributed in the hope that it will be useful, | |
| 15 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 | # GNU General Public License for more details. | |
| 18 | # | |
| 19 | # You should have received a copy of the GNU General Public License | |
| 20 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 21 | # | |
| 22 | ||
| 23 | # creator | |
| 24 | [email protected] | |
| 25 | ||
| 26 | seq=`basename $0` | |
| 27 | echo "QA output created by $seq" | |
| 28 | ||
| 29 | status=1 # failure is the default! | |
| 30 | ||
| 31 | _cleanup() | |
| 32 | { | |
| 33 | _cleanup_test_img | |
| 34 | } | |
| 35 | trap "_cleanup; exit \$status" 0 1 2 3 15 | |
| 36 | ||
| 37 | # get standard environment, filters and checks | |
| 38 | . ./common.rc | |
| 39 | . ./common.filter | |
| 40 | ||
| 41 | _supported_fmt qcow2 | |
| 57284d2a | 42 | _supported_proto file fuse |
| e4d7019e | 43 | _supported_os Linux |
| e6de31bc HR |
44 | # We need qemu-img map to show the file where the data is allocated, |
| 45 | # but with an external data file, it will show that instead of the | |
| 46 | # file we want to check. So just skip this test for external data | |
| 47 | # files. | |
| 48 | _unsupported_imgopts data_file | |
| e4d7019e AG |
49 | |
| 50 | echo '### Create the backing image' | |
| 51 | BACKING_IMG="$TEST_IMG.base" | |
| 52 | TEST_IMG="$BACKING_IMG" _make_test_img 1M | |
| 53 | ||
| 54 | echo '### Fill the backing image with data (0x11)' | |
| 55 | $QEMU_IO -c 'write -P 0x11 0 1M' "$BACKING_IMG" | _filter_qemu_io | |
| 56 | ||
| 57 | echo '### Create the top image' | |
| 58 | _make_test_img -F "$IMGFMT" -b "$BACKING_IMG" | |
| 59 | ||
| 60 | echo '### Fill the top image with data (0x22)' | |
| 61 | $QEMU_IO -c 'write -P 0x22 0 1M' "$TEST_IMG" | _filter_qemu_io | |
| 62 | ||
| 63 | # Both offsets are part of the same cluster. | |
| 64 | echo '### Shrink the image to 520k' | |
| 65 | $QEMU_IMG resize --shrink "$TEST_IMG" 520k | |
| 66 | echo '### Grow the image to 567k' | |
| 67 | $QEMU_IMG resize "$TEST_IMG" 567k | |
| 68 | ||
| 69 | echo '### Check that the tail of the image reads as zeroes' | |
| 70 | $QEMU_IO -c 'read -P 0x22 0 520k' "$TEST_IMG" | _filter_qemu_io | |
| 71 | $QEMU_IO -c 'read -P 0x00 520k 47k' "$TEST_IMG" | _filter_qemu_io | |
| 72 | ||
| 73 | echo '### Show output of qemu-img map' | |
| 74 | $QEMU_IMG map "$TEST_IMG" | _filter_testdir | |
| 75 | ||
| 76 | # success, all done | |
| 77 | echo "*** done" | |
| 78 | rm -f $seq.full | |
| 79 | status=0 |