qemu-iotests: add test for qcow2 preallocation with different cluster sizes

Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

tests/qemu-iotests/079

@@ -0,0 +1,63 @@
+#!/bin/bash
+#
+# Test qcow2 preallocation with different cluster_sizes
+#
+# Copyright (C) 2014 Fujitsu.
+#
+# 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=hutao@cn.fujitsu.com
+
+seq=`basename $0`
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+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
+
+function test_qemu_img()
+{
+    echo qemu-img "$@" | _filter_testdir
+    $QEMU_IMG "$@" 2>&1 | _filter_testdir
+    echo
+}
+
+echo "=== Check option preallocation and cluster_size ==="
+echo
+cluster_sizes="16384 32768 65536 131072 262144 524288 1048576 2097152 4194304"
+
+for s in $cluster_sizes; do
+    test_qemu_img create -f $IMGFMT -o preallocation=metadata,cluster_size=$s "$TEST_IMG" 4G
+done
+
+# success, all done
+echo "*** done"
+rm -f $seq.full
+status=0