xref: /openbmc/qemu/tests/qemu-iotests/062 (revision 812b31d3)
1#!/usr/bin/env bash
2# group: rw auto quick
3#
4# Test case for snapshotting images with unallocated zero clusters in
5# qcow2
6#
7# Copyright (C) 2013 Red Hat, Inc.
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
24owner=mreitz@redhat.com
25
26seq=`basename $0`
27echo "QA output created by $seq"
28
29status=1	# failure is the default!
30
31_cleanup()
32{
33	_cleanup_test_img
34}
35trap "_cleanup; exit \$status" 0 1 2 3 15
36
37# get standard environment, filters and checks
38. ./common.rc
39. ./common.filter
40
41# This tests qcow2-specific low-level functionality
42_supported_fmt qcow2
43_supported_proto generic
44# We need zero clusters and snapshots
45_unsupported_imgopts 'compat=0.10' 'refcount_bits=1[^0-9]' data_file
46
47IMG_SIZE=64M
48
49echo
50echo "=== Testing snapshotting an image with zero clusters ==="
51echo
52_make_test_img $IMG_SIZE
53# Write some zero clusters
54$QEMU_IO -c "write -z 0 256k" "$TEST_IMG" | _filter_qemu_io
55# Create a snapshot
56$QEMU_IMG snapshot -c foo "$TEST_IMG"
57# Check the image (there shouldn't be any errors or leaks)
58_check_test_img
59
60# success, all done
61echo "*** done"
62rm -f $seq.full
63status=0
64