qemu/tests/qemu-iotests/050

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#!/usr/bin/env bash
# group: rw auto backing quick
#
# Test qemu-img rebase with zero clusters
#
# Copyright (C) 2013 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# creator
owner=pbonzini@redhat.com
seq=`basename $0`
echo "QA output created by $seq"
status=1 # failure is the default!
_cleanup()
{
_cleanup_test_img
_rm_test_img "$TEST_IMG.old"
_rm_test_img "$TEST_IMG.new"
}
trap "_cleanup; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
_supported_fmt qcow2 qed
_supported_proto file fuse
echo
echo "== Creating images =="
TEST_IMG_SAVE="$TEST_IMG"
TEST_IMG="$TEST_IMG.old"
size=10M
_make_test_img $size
$QEMU_IO -c "write -P 0x40 0 1048576" "$TEST_IMG" | _filter_qemu_io
TEST_IMG="$TEST_IMG_SAVE.new"
_make_test_img $size
$QEMU_IO -c "write -P 0x5a 0 1048576" "$TEST_IMG" | _filter_qemu_io
TEST_IMG="$TEST_IMG_SAVE"
_make_test_img -b "$TEST_IMG.old" -F $IMGFMT $size
$QEMU_IO -c "write -z 0 1048576" "$TEST_IMG" | _filter_qemu_io
echo
echo "== Rebasing the image =="
$QEMU_IMG rebase -b "$TEST_IMG.new" -F $IMGFMT "$TEST_IMG"
$QEMU_IO -c "read -P 0x00 0 1048576" "$TEST_IMG" | _filter_qemu_io
# success, all done
echo "*** done"
rm -f $seq.full
status=0