qemu-iotests: add 053 unaligned compressed image size test

Test that qemu-img convert -c works when input image length is not a
multiple of the cluster size.

Previously an error message would be produced:

  qemu-img: error while compressing sector 0: Input/output error

Now that qcow2 and qcow handle this case the test passes successfully.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

tests/qemu-iotests/053

@@ -0,0 +1,73 @@
+#!/bin/bash
+#
+# Test qemu-img convert when image length is not a multiple of cluster size
+#
+# 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
+owner=stefanha@redhat.com
+
+seq=`basename $0`
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1	# failure is the default!
+
+_cleanup()
+{
+	rm -f $TEST_IMG.orig
+	_cleanup_test_img
+}
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+
+_supported_fmt qcow2 qcow
+_supported_proto file
+_supported_os Linux
+
+echo
+echo "== Creating single sector image =="
+
+_make_test_img 512
+$QEMU_IO -c "write -P0xa 0 512" $TEST_IMG | _filter_qemu_io
+mv $TEST_IMG $TEST_IMG.orig
+
+echo
+echo "== Converting the image, compressed =="
+
+$QEMU_IMG convert -c -O $IMGFMT $TEST_IMG.orig $TEST_IMG
+_check_test_img
+
+echo
+echo "== Checking compressed image virtual disk size =="
+
+_img_info | grep '^virtual size:'
+
+echo
+echo "== Verifying the compressed image =="
+
+$QEMU_IO -c "read -P0xa 0 512" $TEST_IMG | _filter_qemu_io
+
+# success, all done
+echo "*** done"
+rm -f $seq.full
+status=0
+

tests/qemu-iotests/053.out

@@ -0,0 +1,17 @@
+QA output created by 053
+
+== Creating single sector image ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=512 
+wrote 512/512 bytes at offset 0
+512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Converting the image, compressed ==
+No errors were found on the image.
+
+== Checking compressed image virtual disk size ==
+virtual size: 512 (512 bytes)
+
+== Verifying the compressed image ==
+read 512/512 bytes at offset 0
+512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+*** done

tests/qemu-iotests/group

@@ -59,3 +59,4 @@
 050 rw auto backing quick
 051 rw auto
 052 rw auto backing
+053 rw auto