#!/bin/bash
#
# Test qemu-img operation on zero size images
#
# Copyright (C) 2012 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=kwolf@redhat.com

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 qed
_supported_proto file
_supported_os Linux

echo
echo "== Creating zero size image =="

_make_test_img 0
_check_test_img

mv "$TEST_IMG" "$TEST_IMG.orig"

echo
echo "== Converting the image =="

$QEMU_IMG convert -O $IMGFMT "$TEST_IMG.orig" "$TEST_IMG"
_check_test_img

echo
echo "== Converting the image, compressed =="

if [ "$IMGFMT" == "qcow2" ]; then
    $QEMU_IMG convert -c -O $IMGFMT "$TEST_IMG.orig" "$TEST_IMG"
fi
_check_test_img

echo
echo "== Rebasing the image =="

$QEMU_IMG rebase -u -b "$TEST_IMG.orig" "$TEST_IMG"
$QEMU_IMG rebase -b "$TEST_IMG.orig" "$TEST_IMG"
_check_test_img

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