From f95e26ddf526a025aa1334bbe527739397970443 Mon Sep 17 00:00:00 2001 From: Stefan Hajnoczi Date: Mon, 18 Mar 2013 17:58:54 +0100 Subject: [PATCH] qemu-iotests: add 052 BDRV_O_SNAPSHOT test Check that writes to an image opened with BDRV_O_SNAPSHOT do not modify the underlying image file. Signed-off-by: Stefan Hajnoczi Signed-off-by: Kevin Wolf --- tests/qemu-iotests/052 | 61 ++++++++++++++++++++++++++++++++++++++++++++++ tests/qemu-iotests/052.out | 13 ++++++++++ tests/qemu-iotests/group | 1 + 3 files changed, 75 insertions(+) create mode 100755 tests/qemu-iotests/052 create mode 100644 tests/qemu-iotests/052.out diff --git a/tests/qemu-iotests/052 b/tests/qemu-iotests/052 new file mode 100755 index 0000000000..14a5126635 --- /dev/null +++ b/tests/qemu-iotests/052 @@ -0,0 +1,61 @@ +#!/bin/bash +# +# Test bdrv_read/bdrv_write using BDRV_O_SNAPSHOT +# +# 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 . +# + +# 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 generic +_supported_proto generic +_supported_os Linux + + +size=128M +_make_test_img $size + +echo +echo "== reading whole image ==" +$QEMU_IO -s -c "read 0 $size" $TEST_IMG | _filter_qemu_io + +echo +echo "== writing whole image does not modify image ==" +$QEMU_IO -s -c "write -P 0xa 0 $size" $TEST_IMG | _filter_qemu_io +$QEMU_IO -c "read -P 0 0 $size" $TEST_IMG | _filter_qemu_io + +# success, all done +echo "*** done" +rm -f $seq.full +status=0 diff --git a/tests/qemu-iotests/052.out b/tests/qemu-iotests/052.out new file mode 100644 index 0000000000..8617aa2a9e --- /dev/null +++ b/tests/qemu-iotests/052.out @@ -0,0 +1,13 @@ +QA output created by 052 +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 + +== reading whole image == +read 134217728/134217728 bytes at offset 0 +128 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +== writing whole image does not modify image == +wrote 134217728/134217728 bytes at offset 0 +128 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +read 134217728/134217728 bytes at offset 0 +128 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +*** done diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group index 1d7e4f31a0..73c5966e10 100644 --- a/tests/qemu-iotests/group +++ b/tests/qemu-iotests/group @@ -57,3 +57,4 @@ 048 img auto quick 049 rw auto 050 rw auto backing quick +052 rw auto backing -- 2.11.4.GIT