block: add qemu-iotest for resize base during live commit

#!/bin/bash

#

# Test for commit of larger active layer

#

# This tests live snapshots of images on a running QEMU instance, using

# QMP commands.  Both single disk snapshots, and transactional group

# snapshots are performed.

#

# Copyright (C) 2014 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=jcody@redhat.com

seq=`basename $0`

echo "QA output created by $seq"

here=`pwd`

status=1	# failure is the default!

_cleanup()

{

    _cleanup_qemu

    rm  -f "${TEST_IMG}.base" "${TEST_IMG}.snp1"

	_cleanup_test_img

}

trap "_cleanup; exit \$status" 0 1 2 3 15

# get standard environment, filters and checks

. ./common.rc

. ./common.filter

. ./common.qemu

_supported_fmt qcow2

_supported_proto file

_supported_os Linux

size_smaller=5M

size_larger=100M

_make_test_img $size_smaller

mv "${TEST_IMG}" "${TEST_IMG}.base"

_make_test_img -b "${TEST_IMG}.base" $size_larger

mv "${TEST_IMG}" "${TEST_IMG}.snp1"

_make_test_img -b "${TEST_IMG}.snp1" $size_larger

echo

echo "=== Base image info before commit and resize ==="

$QEMU_IMG info "${TEST_IMG}.base" | _filter_testdir

echo

echo === Running QEMU Live Commit Test ===

echo

qemu_comm_method="qmp"

_launch_qemu -drive file="${TEST_IMG}",if=virtio,id=test

h=$QEMU_HANDLE

_send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" "return"

_send_qemu_cmd $h "{ 'execute': 'block-commit',

                                 'arguments': { 'device': 'test',

                                 'top': '"${TEST_IMG}.snp1"' } }" "BLOCK_JOB_COMPLETED"

echo

echo "=== Base image info after commit and resize ==="

$QEMU_IMG info "${TEST_IMG}.base" | _filter_testdir

# success, all done

echo "*** done"

rm -f $seq.full

status=0

QA output created by 095

Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=5242880 

Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=104857600 backing_file='TEST_DIR/t.IMGFMT.base' 

Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=104857600 backing_file='TEST_DIR/t.IMGFMT.snp1' 

=== Base image info before commit and resize ===

image: TEST_DIR/t.qcow2.base

file format: qcow2

virtual size: 5.0M (5242880 bytes)

disk size: 196K

cluster_size: 65536

Format specific information:

    compat: 1.1

    lazy refcounts: false

=== Running QEMU Live Commit Test ===

{"return": {}}

{"return": {}}

{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "test", "len": 104857600, "offset": 104857600, "speed": 0, "type": "commit"}}

=== Base image info after commit and resize ===

image: TEST_DIR/t.qcow2.base

file format: qcow2

virtual size: 100M (104857600 bytes)

disk size: 196K

cluster_size: 65536

Format specific information:

    compat: 1.1

    lazy refcounts: false

*** done

090 rw auto quick

091 rw auto

092 rw auto quick

095 rw auto