1 files changed, 85 insertions, 0 deletions
diff --git a/tests/qemu-iotests/243 b/tests/qemu-iotests/243
new file mode 100755
index 0000000..5838c6e
--- /dev/null
+++ b/tests/qemu-iotests/243
@@ -0,0 +1,85 @@
+#!/bin/bash
+#
+# Test qcow2 preallocation
+#
+# Copyright (C) 2019 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"
+
+status=1	# failure is the default!
+
+_cleanup()
+{
+    _cleanup_test_img
+    rm -f $TEST_IMG.data
+}
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+
+_supported_fmt qcow2
+_supported_proto file
+_supported_os Linux
+
+for mode in off metadata falloc full; do
+
+    echo
+    echo "=== preallocation=$mode ==="
+    echo
+
+    IMGOPTS="preallocation=$mode" _make_test_img 64M
+
+    printf "File size: "
+    du -b $TEST_IMG | cut -f1
+
+    # Can't use precise numbers here because they differ between filesystems
+    printf "Disk usage: "
+    [ $(du -B1 $TEST_IMG | cut -f1) -lt 1048576 ] && echo "low" || echo "high"
+
+done
+
+for mode in off metadata falloc full; do
+
+    echo
+    echo "=== External data file: preallocation=$mode ==="
+    echo
+
+    IMGOPTS="data_file=$TEST_IMG.data,preallocation=$mode" _make_test_img 64M
+
+    echo -n "qcow2 file size: "
+    du -b $TEST_IMG | cut -f1
+    echo -n "data file size:  "
+    du -b $TEST_IMG.data | cut -f1
+
+    # Can't use precise numbers here because they differ between filesystems
+    echo -n "qcow2 disk usage: "
+    [ $(du -B1 $TEST_IMG | cut -f1) -lt 1048576 ] && echo "low" || echo "high"
+    echo -n "data disk usage:  "
+    [ $(du -B1 $TEST_IMG.data | cut -f1) -lt 1048576 ] && echo "low" || echo "high"
+
+done
+
+# success, all done
+echo "*** done"
+rm -f $seq.full
+status=0