new file mode 100755
@@ -0,0 +1,64 @@
+# Test case for snapshotting images with unallocated zero clusters in
+# 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/>.
+echo "QA output created by $seq"
+status=1 # failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+# get standard environment, filters and checks
+# This tests qocw2-specific low-level functionality
+echo "=== Testing snapshotting an image with zero clusters ==="
+# Write some zero clusters
+$QEMU_IO -c "write -z 0 256k" "$TEST_IMG" | _filter_qemu_io
+# Create a snapshot
+$QEMU_IMG snapshot -c foo "$TEST_IMG"
+# Check the image (there shouldn't be any errors or leaks)
+# success, all done
+echo "*** done"
+rm -f $seq.full
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@@ -0,0 +1,9 @@
+QA output created by 062
+=== Testing snapshotting an image with zero clusters ===
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
+wrote 262144/262144 bytes at offset 0
+256 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+No errors were found on the image.
@@ -64,3 +64,4 @@
055 rw auto
056 rw auto backing
059 rw auto
+062 rw auto