1 files changed, 101 insertions, 0 deletions
diff --git a/qemu/tests/qemu-iotests/029 b/qemu/tests/qemu-iotests/029
new file mode 100755
index 000000000..b9cd826c7
--- /dev/null
+++ b/qemu/tests/qemu-iotests/029
@@ -0,0 +1,101 @@
+#!/bin/bash
+#
+# qcow2 internal snapshots/VM state tests
+#
+# 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()
+{
+    rm -f $TEST_IMG.snap
+    _cleanup_test_img
+}
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+. ./common.pattern
+
+# Any format supporting intenal snapshots
+_supported_fmt qcow2
+_supported_proto generic
+_supported_os Linux
+# Internal snapshots are (currently) impossible with refcount_bits=1
+_unsupported_imgopts 'refcount_bits=1[^0-9]'
+
+offset_size=24
+offset_l1_size=36
+
+echo
+echo Test loading internal snapshots where the L1 table of the snapshot
+echo is smaller than the current L1 table.
+echo
+
+CLUSTER_SIZE=65536
+_make_test_img 64M
+$QEMU_IMG snapshot -c foo "$TEST_IMG"
+$QEMU_IO -c 'write -b 0 4k' "$TEST_IMG" | _filter_qemu_io
+$QEMU_IMG snapshot -a foo "$TEST_IMG"
+_check_test_img
+
+CLUSTER_SIZE=1024
+_make_test_img 16M
+$QEMU_IMG snapshot -c foo "$TEST_IMG"
+$QEMU_IO -c 'write -b 0 4M' "$TEST_IMG" | _filter_qemu_io
+$QEMU_IMG snapshot -a foo "$TEST_IMG"
+_check_test_img
+
+
+echo
+echo Try using a huge VM state
+echo
+
+CLUSTER_SIZE=65536
+_make_test_img 64M
+{ $QEMU_IO -c "write -b -P 0x11 1T 4k" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
+{ $QEMU_IMG snapshot -c foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
+{ $QEMU_IMG snapshot -a foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
+{ $QEMU_IO -c "read -b -P 0x11 1T 4k" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
+_check_test_img
+
+
+echo
+echo "qcow2_snapshot_load_tmp() should take the L1 size from the snapshot"
+echo
+
+CLUSTER_SIZE=512
+_make_test_img 64M
+{ $QEMU_IMG snapshot -c foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
+poke_file "$TEST_IMG" "$offset_size" "\x00\x00\x00\x00\x00\x00\x02\x00"
+poke_file "$TEST_IMG" "$offset_l1_size" "\x00\x00\x00\x01"
+{ $QEMU_IMG convert -s foo $TEST_IMG $TEST_IMG.snap; } 2>&1 | _filter_qemu_io | _filter_testdir
+
+
+# success, all done
+echo "*** done"
+rm -f $seq.full
+status=0