qemu-iotests: add test case 101 for short file I/O

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

tests/qemu-iotests/101

@@ -0,0 +1,58 @@
+#!/bin/bash
+#
+# Test short file I/O
+#
+# Copyright (C) 2014 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()
+{
+	_cleanup_test_img
+}
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+
+_supported_fmt raw
+_supported_proto file
+_supported_os Linux
+
+
+echo
+echo "== creating short image file =="
+dd if=/dev/zero of="$TEST_IMG" bs=1 count=320
+
+echo
+echo "== reading bytes beyond EOF gives zeroes =="
+$QEMU_IO -c "read -P 0 0 512" "$TEST_IMG" | _filter_qemu_io
+
+
+# success, all done
+echo "*** done"
+rm -f $seq.full
+status=0

tests/qemu-iotests/101.out

@@ -0,0 +1,10 @@
+QA output created by 101
+
+== creating short image file ==
+320+0 records in
+320+0 records out
+
+== reading bytes beyond EOF gives zeroes ==
+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

@@ -101,4 +101,5 @@
 092 rw auto quick
 095 rw auto quick
 099 rw auto quick
+101 rw auto quick
 103 rw auto quick