1 files changed, 80 insertions, 0 deletions
diff --git a/tests/qemu-iotests/031 b/tests/qemu-iotests/031
new file mode 100755
index 00000000..2a77ba8c
--- /dev/null
+++ b/tests/qemu-iotests/031
@@ -0,0 +1,80 @@
+#!/bin/bash
+#
+# Test that all qcow2 header extensions survive a header rewrite
+#
+# Copyright (C) 2011 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`
+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
+. ./common.pattern
+
+# This tests qcow2-specific low-level functionality
+_supported_fmt qcow2
+_supported_proto file
+_supported_os Linux
+
+CLUSTER_SIZE=65536
+
+# qcow2.py output depends on the exact options used, so override the command
+# line here as an exception
+for IMGOPTS in "compat=0.10" "compat=1.1"; do
+
+    echo
+    echo ===== Testing with -o $IMGOPTS =====
+    echo
+    echo === Create image with unknown header extension ===
+    echo
+    _make_test_img 64M
+    $PYTHON qcow2.py "$TEST_IMG" add-header-ext 0x12345678 "This is a test header extension"
+    $PYTHON qcow2.py "$TEST_IMG" dump-header
+    _check_test_img
+
+    echo
+    echo === Rewrite header with no backing file ===
+    echo
+    $QEMU_IMG rebase -u -b "" "$TEST_IMG"
+    $PYTHON qcow2.py "$TEST_IMG" dump-header
+    _check_test_img
+
+    echo
+    echo === Add a backing file and format ===
+    echo
+    $QEMU_IMG rebase -u -b "/some/backing/file/path" -F host_device "$TEST_IMG"
+    $PYTHON qcow2.py "$TEST_IMG" dump-header
+done
+
+# success, all done
+echo "*** done"
+rm -f $seq.full
+status=0