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# qcow2 pattern test, empty and compressed image - 4k cluster patterns
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# Copyright (C) 2009 Red Hat, Inc.
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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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# 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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# 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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owner=kwolf@redhat.com
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echo "QA output created by $seq"
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status=1 # failure is the default!
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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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# much of this could be generic for any format supporting compression.
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_supported_fmt qcow qcow2
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_supported_proto generic
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TEST_OFFSETS="0 4294967296"
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TEST_OPS="writev read write readv"
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echo "Testing empty image"
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for offset in $TEST_OFFSETS; do
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echo "At offset $offset:"
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for op in $TEST_OPS; do
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io_test $op $offset $CLUSTER_SIZE 8
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echo "Compressing image"
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mv $TEST_IMG $TEST_IMG.orig
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$QEMU_IMG convert -f $IMGFMT -O $IMGFMT -c $TEST_IMG.orig $TEST_IMG
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echo "Testing compressed image"
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for offset in $TEST_OFFSETS; do
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echo "With offset $offset:"
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for op in read readv; do
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io_test $op $offset $CLUSTER_SIZE 8
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echo "Testing compressed image with odd offsets"
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for offset in $TEST_OFFSETS; do
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# Some odd offset (1 sector), so tests will write to areas occupied partly
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# by old (compressed) data and empty clusters
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offset=$((offset + 512))
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echo "With offset $offset:"
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for op in $TEST_OPS; do
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io_test $op $offset $CLUSTER_SIZE 8
added
removed
tests/qemu-iotests/013
