iotests: Add test for qcow2 L1 table update
Updating the L1 table should not result in random data being written. This adds a test for that. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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tests/qemu-iotests/107
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tests/qemu-iotests/107
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#!/bin/bash
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#
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# Tests updates of the qcow2 L1 table
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#
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# Copyright (C) 2014 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# creator
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owner=mreitz@redhat.com
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seq="$(basename $0)"
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echo "QA output created by $seq"
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here="$PWD"
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tmp=/tmp/$$
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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_supported_fmt qcow2
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_supported_proto file
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_supported_os Linux
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IMG_SIZE=64K
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echo
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echo '=== Updates should not write random data ==='
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echo
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_make_test_img $IMG_SIZE
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$QEMU_IO -c 'write 0 64k' "$TEST_IMG" | _filter_qemu_io
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$QEMU_IO -c "open -o driver=raw $TEST_IMG" -c 'read -p -P 0 196616 65528' \
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| _filter_qemu_io
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# success, all done
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echo "*** done"
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rm -f $seq.full
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status=0
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10
tests/qemu-iotests/107.out
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10
tests/qemu-iotests/107.out
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QA output created by 107
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=== Updates should not write random data ===
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=65536
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wrote 65536/65536 bytes at offset 0
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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read 65528/65528 bytes at offset 196616
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63.992 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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*** done
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@ -107,4 +107,5 @@
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103 rw auto quick
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103 rw auto quick
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104 rw auto
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104 rw auto
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105 rw auto quick
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105 rw auto quick
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107 rw auto quick
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108 rw auto quick
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108 rw auto quick
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