Commit 92b22e7b authored by Kevin Wolf's avatar Kevin Wolf
Browse files

iotests: Test internal snapshots with -blockdev 



Signed-off-by: default avatarKevin Wolf <kwolf@redhat.com>
Reviewed-by: default avatarPeter Krempa <pkrempa@redhat.com>
Tested-by: default avatarPeter Krempa <pkrempa@redhat.com>
parent 05f4aced

tests/qemu-iotests/267

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#!/usr/bin/env bash

#

# Test which nodes are involved in internal snapshots

#

# 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_DIR/nbd"

}

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



# Internal snapshots are (currently) impossible with refcount_bits=1

_unsupported_imgopts 'refcount_bits=1[^0-9]'



do_run_qemu()

{

    echo Testing: "$@"

    (

        if ! test -t 0; then

            while read cmd; do

                echo $cmd

            done

        fi

        echo quit

    ) | $QEMU -nographic -monitor stdio -nodefaults "$@"

    echo

}



run_qemu()

{

    do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_hmp |

        _filter_generated_node_ids | _filter_imgfmt | _filter_vmstate_size

}



size=128M



run_test()

{

    _make_test_img $size

    printf "savevm snap0\ninfo snapshots\nloadvm snap0\n" | run_qemu "$@" | _filter_date

}





echo

echo "=== No block devices at all ==="

echo



run_test



echo

echo "=== -drive if=none ==="

echo



run_test -drive driver=file,file="$TEST_IMG",if=none

run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none

run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none -device virtio-blk,drive=none0



echo

echo "=== -drive if=virtio ==="

echo



run_test -drive driver=file,file="$TEST_IMG",if=virtio

run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=virtio



echo

echo "=== Simple -blockdev ==="

echo



run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file

run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \

         -blockdev driver=$IMGFMT,file=file,node-name=fmt

run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \

         -blockdev driver=raw,file=file,node-name=raw \

         -blockdev driver=$IMGFMT,file=raw,node-name=fmt



echo

echo "=== -blockdev with a filter on top ==="

echo



run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \

         -blockdev driver=$IMGFMT,file=file,node-name=fmt \

         -blockdev driver=copy-on-read,file=fmt,node-name=filter



echo

echo "=== -blockdev with a backing file ==="

echo



TEST_IMG="$TEST_IMG.base" _make_test_img $size



IMGOPTS="backing_file=$TEST_IMG.base" \

run_test -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \

         -blockdev driver=file,filename="$TEST_IMG",node-name=file \

         -blockdev driver=$IMGFMT,file=file,backing=backing-file,node-name=fmt



IMGOPTS="backing_file=$TEST_IMG.base" \

run_test -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \

         -blockdev driver=$IMGFMT,file=backing-file,node-name=backing-fmt \

         -blockdev driver=file,filename="$TEST_IMG",node-name=file \

         -blockdev driver=$IMGFMT,file=file,backing=backing-fmt,node-name=fmt



# A snapshot should be present on the overlay, but not the backing file

echo Internal snapshots on overlay:

$QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size



echo Internal snapshots on backing file:

$QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size



echo

echo "=== -blockdev with NBD server on the backing file ==="

echo



IMGOPTS="backing_file=$TEST_IMG.base" _make_test_img $size

cat <<EOF |

nbd_server_start unix:$TEST_DIR/nbd

nbd_server_add -w backing-fmt

savevm snap0

info snapshots

loadvm snap0

EOF

run_qemu -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \

         -blockdev driver=$IMGFMT,file=backing-file,node-name=backing-fmt \

         -blockdev driver=file,filename="$TEST_IMG",node-name=file \

         -blockdev driver=$IMGFMT,file=file,backing=backing-fmt,node-name=fmt |

         _filter_date



# This time, a snapshot should be created on both files

echo Internal snapshots on overlay:

$QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size



echo Internal snapshots on backing file:

$QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size



# success, all done

echo "*** done"

rm -f $seq.full

status=0

tests/qemu-iotests/267.out

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QA output created by 267



=== No block devices at all ===



Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728

Testing:

QEMU X.Y.Z monitor - type 'help' for more information

(qemu) savevm snap0

Error: No block device can accept snapshots

(qemu) info snapshots

No available block device supports snapshots

(qemu) loadvm snap0

Error: No block device supports snapshots

(qemu) quit





=== -drive if=none ===



Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728

Testing: -drive driver=file,file=TEST_DIR/t.IMGFMT,if=none

QEMU X.Y.Z monitor - type 'help' for more information

(qemu) savevm snap0

Error: Device 'none0' is writable but does not support snapshots

(qemu) info snapshots

No available block device supports snapshots

(qemu) loadvm snap0

Error: Device 'none0' is writable but does not support snapshots

(qemu) quit



Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728

Testing: -drive driver=IMGFMT,file=TEST_DIR/t.IMGFMT,if=none

QEMU X.Y.Z monitor - type 'help' for more information

(qemu) savevm snap0

(qemu) info snapshots

List of snapshots present on all disks:

ID        TAG                 VM SIZE                DATE       VM CLOCK

--        snap0                  SIZE yyyy-mm-dd hh:mm:ss   00:00:00.000

(qemu) loadvm snap0

(qemu) quit



Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728

Testing: -drive driver=IMGFMT,file=TEST_DIR/t.IMGFMT,if=none -device virtio-blk,drive=none0

QEMU X.Y.Z monitor - type 'help' for more information

(qemu) savevm snap0

(qemu) info snapshots

List of snapshots present on all disks:

ID        TAG                 VM SIZE                DATE       VM CLOCK

--        snap0                  SIZE yyyy-mm-dd hh:mm:ss   00:00:00.000

(qemu) loadvm snap0

(qemu) quit





=== -drive if=virtio ===



Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728

Testing: -drive driver=file,file=TEST_DIR/t.IMGFMT,if=virtio

QEMU X.Y.Z monitor - type 'help' for more information

(qemu) savevm snap0

Error: Device 'virtio0' is writable but does not support snapshots

(qemu) info snapshots

No available block device supports snapshots

(qemu) loadvm snap0

Error: Device 'virtio0' is writable but does not support snapshots

(qemu) quit



Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728

Testing: -drive driver=IMGFMT,file=TEST_DIR/t.IMGFMT,if=virtio

QEMU X.Y.Z monitor - type 'help' for more information

(qemu) savevm snap0

(qemu) info snapshots

List of snapshots present on all disks:

ID        TAG                 VM SIZE                DATE       VM CLOCK

--        snap0                  SIZE yyyy-mm-dd hh:mm:ss   00:00:00.000

(qemu) loadvm snap0

(qemu) quit





=== Simple -blockdev ===



Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728

Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file

QEMU X.Y.Z monitor - type 'help' for more information

(qemu) savevm snap0

Error: Device '' is writable but does not support snapshots

(qemu) info snapshots

No available block device supports snapshots

(qemu) loadvm snap0

Error: Device '' is writable but does not support snapshots

(qemu) quit



Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728

Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev driver=IMGFMT,file=file,node-name=fmt

QEMU X.Y.Z monitor - type 'help' for more information

(qemu) savevm snap0

(qemu) info snapshots

List of snapshots present on all disks:

ID        TAG                 VM SIZE                DATE       VM CLOCK

--        snap0                  SIZE yyyy-mm-dd hh:mm:ss   00:00:00.000

(qemu) loadvm snap0

(qemu) quit



Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728

Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev driver=raw,file=file,node-name=raw -blockdev driver=IMGFMT,file=raw,node-name=fmt

QEMU X.Y.Z monitor - type 'help' for more information

(qemu) savevm snap0

(qemu) info snapshots

List of snapshots present on all disks:

ID        TAG                 VM SIZE                DATE       VM CLOCK

--        snap0                  SIZE yyyy-mm-dd hh:mm:ss   00:00:00.000

(qemu) loadvm snap0

(qemu) quit





=== -blockdev with a filter on top ===



Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728

Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev driver=IMGFMT,file=file,node-name=fmt -blockdev driver=copy-on-read,file=fmt,node-name=filter

QEMU X.Y.Z monitor - type 'help' for more information

(qemu) savevm snap0

(qemu) info snapshots

List of snapshots present on all disks:

ID        TAG                 VM SIZE                DATE       VM CLOCK

--        snap0                  SIZE yyyy-mm-dd hh:mm:ss   00:00:00.000

(qemu) loadvm snap0

(qemu) quit





=== -blockdev with a backing file ===



Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728

Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base

Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT.base,node-name=backing-file -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev driver=IMGFMT,file=file,backing=backing-file,node-name=fmt

QEMU X.Y.Z monitor - type 'help' for more information

(qemu) savevm snap0

(qemu) info snapshots

List of snapshots present on all disks:

ID        TAG                 VM SIZE                DATE       VM CLOCK

--        snap0                  SIZE yyyy-mm-dd hh:mm:ss   00:00:00.000

(qemu) loadvm snap0

(qemu) quit



Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base

Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT.base,node-name=backing-file -blockdev driver=IMGFMT,file=backing-file,node-name=backing-fmt -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev driver=IMGFMT,file=file,backing=backing-fmt,node-name=fmt

QEMU X.Y.Z monitor - type 'help' for more information

(qemu) savevm snap0

(qemu) info snapshots

List of snapshots present on all disks:

ID        TAG                 VM SIZE                DATE       VM CLOCK

--        snap0                  SIZE yyyy-mm-dd hh:mm:ss   00:00:00.000

(qemu) loadvm snap0

(qemu) quit



Internal snapshots on overlay:

Snapshot list:

ID        TAG                 VM SIZE                DATE       VM CLOCK

1         snap0                  SIZE yyyy-mm-dd hh:mm:ss   00:00:00.000

Internal snapshots on backing file:



=== -blockdev with NBD server on the backing file ===



Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base

Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT.base,node-name=backing-file -blockdev driver=IMGFMT,file=backing-file,node-name=backing-fmt -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev driver=IMGFMT,file=file,backing=backing-fmt,node-name=fmt

QEMU X.Y.Z monitor - type 'help' for more information

(qemu) nbd_server_start unix:TEST_DIR/nbd

(qemu) nbd_server_add -w backing-fmt

(qemu) savevm snap0

(qemu) info snapshots

List of snapshots present on all disks:

ID        TAG                 VM SIZE                DATE       VM CLOCK

--        snap0                  SIZE yyyy-mm-dd hh:mm:ss   00:00:00.000

(qemu) loadvm snap0

(qemu) quit



Internal snapshots on overlay:

Snapshot list:

ID        TAG                 VM SIZE                DATE       VM CLOCK

1         snap0                  SIZE yyyy-mm-dd hh:mm:ss   00:00:00.000

Internal snapshots on backing file:

Snapshot list:

ID        TAG                 VM SIZE                DATE       VM CLOCK

1         snap0                  SIZE yyyy-mm-dd hh:mm:ss   00:00:00.000

*** done

tests/qemu-iotests/common.filter

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@@ -19,12 +19,15 @@ 
# standard filters

#



# ctime(3) dates

#

_filter_date()

{

    $SED \

        -e 's/[A-Z][a-z][a-z] [A-z][a-z][a-z]  *[0-9][0-9]* [0-9][0-9]:[0-9][0-9]:[0-9][0-9] [0-9][0-9][0-9][0-9]$/DATE/'

    $SED -re 's/[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2}/yyyy-mm-dd hh:mm:ss/'

}



_filter_vmstate_size()

{

    $SED -r -e 's/[0-9. ]{5} [KMGT]iB/     SIZE/' \

            -e 's/[0-9. ]{5} B/   SIZE/'

}



_filter_generated_node_ids()

tests/qemu-iotests/group

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@@ -277,3 +277,4 @@ 
263 rw quick

265 rw auto quick

266 rw quick

267 rw auto quick snapshot