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Re: [PATCH 2/2] iotests: Test multiple blockdev-snapshot calls


From: Peter Krempa
Subject: Re: [PATCH 2/2] iotests: Test multiple blockdev-snapshot calls
Date: Tue, 12 Nov 2019 17:07:26 +0100
User-agent: Mutt/1.12.1 (2019-06-15)

On Fri, Nov 08, 2019 at 09:53:12 +0100, Kevin Wolf wrote:
> Test that doing a second blockdev-snapshot doesn't make the first
> overlay's backing file go away.
> 
> Signed-off-by: Kevin Wolf <address@hidden>
> ---
>  tests/qemu-iotests/273     |  76 +++++++++
>  tests/qemu-iotests/273.out | 337 +++++++++++++++++++++++++++++++++++++
>  tests/qemu-iotests/group   |   1 +
>  3 files changed, 414 insertions(+)
>  create mode 100755 tests/qemu-iotests/273
>  create mode 100644 tests/qemu-iotests/273.out

Didn't apply cleanly for me.

> 
> diff --git a/tests/qemu-iotests/273 b/tests/qemu-iotests/273
> new file mode 100755
> index 0000000000..60076de7ce
> --- /dev/null
> +++ b/tests/qemu-iotests/273
> @@ -0,0 +1,76 @@
> +#!/usr/bin/env bash
> +#
> +# Test large write to a qcow2 image

Cut&paste?


Rest looks good

Reviewed-by: Peter Krempa <address@hidden>

> +#
> +# 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/>.
> +#
> +
> +seq=$(basename "$0")
> +echo "QA output created by $seq"
> +
> +status=1     # failure is the default!
> +
> +_cleanup()
> +{
> +    _cleanup_test_img
> +}
> +trap "_cleanup; exit \$status" 0 1 2 3 15
> +
> +# get standard environment, filters and checks
> +. ./common.rc
> +. ./common.filter
> +
> +# This is a qcow2 regression test
> +_supported_fmt qcow2
> +_supported_proto file
> +_supported_os Linux
> +
> +do_run_qemu()
> +{
> +    echo Testing: "$@"
> +    $QEMU -nographic -qmp-pretty stdio -nodefaults "$@"

-qmp-pretty, that's useful

> +    echo
> +}
> +
> +run_qemu()
> +{
> +    do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_qmp |
> +        _filter_generated_node_ids | _filter_imgfmt | 
> _filter_actual_image_size
> +}
> +
> +TEST_IMG="$TEST_IMG.base" _make_test_img 64M
> +TEST_IMG="$TEST_IMG.mid" _make_test_img -b "$TEST_IMG.base"
> +_make_test_img -b "$TEST_IMG.mid"
> +
> +run_qemu \
> +    -blockdev file,node-name=base,filename="$TEST_IMG.base" \
> +     -blockdev file,node-name=midf,filename="$TEST_IMG.mid" \
> +     -blockdev 
> '{"driver":"qcow2","node-name":"mid","file":"midf","backing":null}' \
> +     -blockdev file,node-name=topf,filename="$TEST_IMG" \
> +     -blockdev 
> '{"driver":"qcow2","file":"topf","node-name":"top","backing":null}' \
> +<<EOF
> +{"execute":"qmp_capabilities"}
> +{"execute":"blockdev-snapshot","arguments":{"node":"base","overlay":"mid"}}
> +{"execute":"blockdev-snapshot","arguments":{"node":"mid","overlay":"top"}}
> +{"execute":"query-named-block-nodes"}
> +{"execute":"x-debug-query-block-graph"}

Oh, this too!

> +{"execute":"quit"}
> +EOF
> +
> +# success, all done
> +echo "*** done"
> +rm -f $seq.full
> +status=0




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