Commit 2b773193 authored by Max Reitz's avatar Max Reitz
Browse files

iotests: Add test for failing qemu-img commit 



Signed-off-by: default avatarMax Reitz <mreitz@redhat.com>
Message-id: 20170616135847.17726-1-mreitz@redhat.com
Reviewed-by: default avatarEric Blake <eblake@redhat.com>
Signed-off-by: default avatarMax Reitz <mreitz@redhat.com>
parent 1b76e838

tests/qemu-iotests/020

+27 −0
Original line number Diff line number Diff line
@@ -110,6 +110,33 @@ for offset in $TEST_OFFSETS; do 
    io_zero readv $(( offset + 64 * 1024 + 65536 * 4 )) 65536 65536 1

done

_check_test_img

_cleanup

TEST_IMG=$TEST_IMG_SAVE



echo

echo 'Testing failing commit'

echo



# Create an image with a null backing file to which committing will fail (with

# ENOSPC so we can distinguish the result from some generic EIO which may be

# generated anywhere in the block layer)

_make_test_img -b "json:{'driver': 'raw',

                         'file': {

                             'driver': 'blkdebug',

                             'inject-error': [{

                                 'event': 'write_aio',

                                 'errno': 28,

                                 'once': true

                             }],

                             'image': {

                                 'driver': 'null-co'

                             }}}"



# Just write anything so committing will not be a no-op

$QEMU_IO -c 'writev 0 64k' "$TEST_IMG" | _filter_qemu_io



$QEMU_IMG commit "$TEST_IMG"

_cleanup_test_img



# success, all done

echo "*** done"

tests/qemu-iotests/020.out

+17 −0
Original line number Diff line number Diff line
@@ -1075,4 +1075,21 @@ read 65536/65536 bytes at offset 4295098368 
read 65536/65536 bytes at offset 4295294976

64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

No errors were found on the image.



Testing failing commit



Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 backing_file=json:{'driver': 'raw',,

                         'file': {

                             'driver': 'blkdebug',,

                             'inject-error': [{

                                 'event': 'write_aio',,

                                 'errno': 28,,

                                 'once': true

                             }],,

                             'image': {

                                 'driver': 'null-co'

                             }}}

wrote 65536/65536 bytes at offset 0

64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

qemu-img: Block job failed: No space left on device

*** done