Re: [Qemu-devel] [PATCH v2 2/2] qemu-iotests: Add test for unbacked mirroring

[Wenchao Xia <xiawenc@linux.vnet.ibm.com>]

于 2013/11/5 8:35, Max Reitz 写道:
> Add a new test for mirroring unbacked images in "absolute-paths" mode.
> This should work, if possible, but most importantly, qemu should never
> crash.
> 
> Signed-off-by: Max Reitz <mreitz@redhat.com>
> ---
>   tests/qemu-iotests/070     | 91 ++++++++++++++++++++++++++++++++++++++++++++++
>   tests/qemu-iotests/070.out | 33 +++++++++++++++++
>   tests/qemu-iotests/group   |  1 +
>   3 files changed, 125 insertions(+)
>   create mode 100755 tests/qemu-iotests/070
>   create mode 100644 tests/qemu-iotests/070.out
> 
> diff --git a/tests/qemu-iotests/070 b/tests/qemu-iotests/070
> new file mode 100755
> index 0000000..25ecf99
> --- /dev/null
> +++ b/tests/qemu-iotests/070
> @@ -0,0 +1,91 @@
> +#!/bin/bash
> +#
> +# Test mirroring block device without backing file in absolute-paths mode
> +#
> +# 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/>.
> +#
> +
> +# creator
> +owner=mreitz@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 qed qcow2 qcow2 vmdk
> +_supported_proto file
> +_supported_os Linux
> +
> +function do_run_qemu()
> +{
> +    echo Testing: "$@" | _filter_imgfmt
> +    $QEMU -nographic -qmp stdio -serial none "$@"
> +    echo
> +}
> +
> +function run_qemu()
> +{
> +    # Filter out empty returns and the SHUTDOWN event, because these may occur
> +    # interleaved with the block job events (in a non-deterministic manner).
> +    # Also, filter out the "Formatting" message which is emitted when the target
> +    # image is created - it contains format-specific information.
> +    do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qmp |\
> +        grep -v '{"return": {}}' | grep -v '"event": "SHUTDOWN"' |\
> +        grep -v '^Formatting'
> +}
> +
> +size=128K
> +
> +_make_test_img $size
> +
> +for sync in full top none
> +do
> +
> +echo
> +echo "=== Mirroring non-backed image in absolute-paths mode with sync=$sync ==="
> +echo
> +
> +run_qemu -drive file="$TEST_IMG",format="$IMGFMT",if=none,id=disk \
> +         -device virtio-blk-pci,drive=disk,id=virtio0 <<EOF
> +{ "execute": "qmp_capabilities" }
> +{ "execute": "drive-mirror",
> +    "arguments": { "device": "disk", "target": "$TEST_IMG.target",
> +                   "format": "$IMGFMT", "mode": "absolute-paths",
> +                   "sync": "$sync" } }
> +{ "execute": "quit" }
> +EOF
> +
> +rm -f $TEST_IMG.target
> +
> +done
> +
> +# success, all done
> +echo "*** done"
> +rm -f $seq.full
> +status=0
> diff --git a/tests/qemu-iotests/070.out b/tests/qemu-iotests/070.out
> new file mode 100644
> index 0000000..246b0f1
> --- /dev/null
> +++ b/tests/qemu-iotests/070.out
> @@ -0,0 +1,33 @@
> +QA output created by 070
> +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=131072
> +
> +=== Mirroring non-backed image in absolute-paths mode with sync=full ===
> +
> +Testing: -drive file=TEST_DIR/t.IMGFMT,format=IMGFMT,if=none,id=disk -device virtio-blk-pci,drive=disk,id=virtio0
> +QMP_VERSION
> +{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "disk", "len": 131072, "offset": 131072, "speed": 0, "type": "mirror"}}
> +{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "disk", "len": 131072, "offset": 131072, "speed": 0, "type": "mirror"}}
> +{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "ide1-cd0", "tray-open": true}}
> +{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "floppy0", "tray-open": true}}
> +
> +
> +=== Mirroring non-backed image in absolute-paths mode with sync=top ===
> +
> +Testing: -drive file=TEST_DIR/t.IMGFMT,format=IMGFMT,if=none,id=disk -device virtio-blk-pci,drive=disk,id=virtio0
> +QMP_VERSION
> +{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "disk", "len": 131072, "offset": 131072, "speed": 0, "type": "mirror"}}
> +{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "disk", "len": 131072, "offset": 131072, "speed": 0, "type": "mirror"}}
> +{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "ide1-cd0", "tray-open": true}}
> +{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "floppy0", "tray-open": true}}
> +
> +
> +=== Mirroring non-backed image in absolute-paths mode with sync=none ===
> +
> +Testing: -drive file=TEST_DIR/t.IMGFMT,format=IMGFMT,if=none,id=disk -device virtio-blk-pci,drive=disk,id=virtio0
> +QMP_VERSION
> +{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "disk", "len": 131072, "offset": 131072, "speed": 0, "type": "mirror"}}
> +{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "disk", "len": 131072, "offset": 131072, "speed": 0, "type": "mirror"}}
> +{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "ide1-cd0", "tray-open": true}}
> +{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "DEVICE_TRAY_MOVED", "data": {"device": "floppy0", "tray-open": true}}
> +
> +*** done
> diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
> index c57ff35..b18b241 100644
> --- a/tests/qemu-iotests/group
> +++ b/tests/qemu-iotests/group
> @@ -75,3 +75,4 @@
>   067 rw auto
>   068 rw auto
>   069 rw auto
> +070 rw auto
> 
  The code seems fine, but why not use python code as 056? I think for
cases that need start qemu, python is better since the infras is ready
and easier to talk with qmp protocol.