Commit 774a8850 authored by Stefan Hajnoczi's avatar Stefan Hajnoczi Committed by Kevin Wolf

qemu-iotests: add backing file smaller than image test case

This new test case checks that streaming completes successfully when the
backing file is smaller than the image file.
Signed-off-by: default avatarStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Reviewed-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: default avatarKevin Wolf <kwolf@redhat.com>
parent 571cd9dc
......@@ -125,6 +125,39 @@ class TestSingleDrive(ImageStreamingTestCase):
result = self.vm.qmp('block-stream', device='nonexistent')
self.assert_qmp(result, 'error/class', 'DeviceNotFound')
class TestSmallerBackingFile(ImageStreamingTestCase):
backing_len = 1 * 1024 * 1024 # MB
image_len = 2 * backing_len
def setUp(self):
self.create_image(backing_img, self.backing_len)
qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img, str(self.image_len))
self.vm = iotests.VM().add_drive(test_img)
self.vm.launch()
# If this hangs, then you are missing a fix to complete streaming when the
# end of the backing file is reached.
def test_stream(self):
self.assert_no_active_streams()
result = self.vm.qmp('block-stream', device='drive0')
self.assert_qmp(result, 'return', {})
completed = False
while not completed:
for event in self.vm.get_qmp_events(wait=True):
if event['event'] == 'BLOCK_JOB_COMPLETED':
self.assert_qmp(event, 'data/type', 'stream')
self.assert_qmp(event, 'data/device', 'drive0')
self.assert_qmp(event, 'data/offset', self.image_len)
self.assert_qmp(event, 'data/len', self.image_len)
completed = True
self.assert_no_active_streams()
self.vm.shutdown()
class TestStreamStop(ImageStreamingTestCase):
image_len = 8 * 1024 * 1024 * 1024 # GB
......
......
.......
----------------------------------------------------------------------
Ran 6 tests
Ran 7 tests
OK
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