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block: test 'blockdev-snapshot' using a file BDS as the overlay 

This test checks that it is not possible to create a snapshot if the
requested overlay node is a BDS which does not support backing images.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Alberto Garcia 2015-11-03 12:32:37 +02:00 committed by Kevin Wolf
parent f2d7f16f94
commit 3fa123d059
2 changed files with 15 additions and 1 deletions
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12
tests/qemu-iotests/085
View File

@ -103,7 +103,8 @@ function add_snapshot_image()
{ 'options': { 'options':
{ 'driver': 'qcow2', 'node-name': 'snap_${1}', ${extra_params} { 'driver': 'qcow2', 'node-name': 'snap_${1}', ${extra_params}
'file': 'file':
{ 'driver': 'file', 'filename': '${snapshot_file}' } } } }" { 'driver': 'file', 'filename': '${snapshot_file}',
'node-name': 'file_${1}' } } } }"
_send_qemu_cmd $h "${cmd}" "return" _send_qemu_cmd $h "${cmd}" "return"
} }
@ -186,6 +187,15 @@ SNAPSHOTS=$((${SNAPSHOTS}+1))
add_snapshot_image ${SNAPSHOTS} add_snapshot_image ${SNAPSHOTS}
blockdev_snapshot ${SNAPSHOTS} blockdev_snapshot ${SNAPSHOTS}
echo
echo === Invalid command - cannot create a snapshot using a file BDS ===
echo
_send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot',
'arguments': { 'node':'virtio0',
'overlay':'file_${SNAPSHOTS}' }
}" "error"
echo echo
echo === Invalid command - snapshot node used as active layer === echo === Invalid command - snapshot node used as active layer ===
echo echo

4
tests/qemu-iotests/085.out
View File

@ -62,6 +62,10 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/
{"return": {}} {"return": {}}
{"return": {}} {"return": {}}
=== Invalid command - cannot create a snapshot using a file BDS ===
{"error": {"class": "GenericError", "desc": "The snapshot does not support backing images"}}
=== Invalid command - snapshot node used as active layer === === Invalid command - snapshot node used as active layer ===
{"error": {"class": "GenericError", "desc": "The snapshot is already in use by virtio0"}} {"error": {"class": "GenericError", "desc": "The snapshot is already in use by virtio0"}}