block: Use JSON null instead of "" to disable backing file

[qemu.git] / tests / qemu-iotests / 054

#!/bin/bash
#
# Test huge qcow2 images
#
# 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
[email protected]

seq=`basename $0`
echo "QA output created by $seq"

here=`pwd`
status=1	# failure is the default!

_cleanup()
{
	_cleanup_test_img
}
trap "_cleanup; exit \$status" 0 1 2 3 15

# get standard environment, filters and checks
. ./common.rc
. ./common.filter

_supported_fmt qcow2
_supported_proto file
_supported_os Linux

echo
echo "creating too large image (1 EB)"
_make_test_img $((1024*1024))T

echo
echo "creating too large image (1 EB) using qcow2.py"
_make_test_img 4G
$PYTHON qcow2.py "$TEST_IMG" set-header size $((1024 ** 6))
_check_test_img

# success, all done
echo "*** done"
rm -f $seq.full
status=0