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