qemu-img: Add tests for raw image preallocation

#!/bin/bash

#

# Test creating raw image preallocation mode

#

# Copyright (C) 2017 Nir Soffer <nirsof@gmail.com>

#

# 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=nirsof@gmail.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 raw

_supported_proto file

_supported_os Linux

size=1m

echo

echo "== creating image with default preallocation =="

_make_test_img $size | _filter_imgfmt

stat -c "size=%s, blocks=%b" $TEST_IMG

for mode in off full falloc; do

    echo

    echo "== creating image with preallocation $mode =="

    IMGOPTS=preallocation=$mode _make_test_img $size | _filter_imgfmt

    stat -c "size=%s, blocks=%b" $TEST_IMG

done

# success, all done

echo "*** done"

rm -f $seq.full

status=0

QA output created by 175

== creating image with default preallocation ==

Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576

size=1048576, blocks=0

== creating image with preallocation off ==

Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 preallocation=off

size=1048576, blocks=0

== creating image with preallocation full ==

Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 preallocation=full

size=1048576, blocks=2048

== creating image with preallocation falloc ==

Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 preallocation=falloc

size=1048576, blocks=2048

 *** done

172 auto

173 rw auto

174 auto

175 auto quick