qemu-iotests: fix test_stream_partial()

This test is streaming to the top layer using the intermediate image
as the base. This is a mistake since block-stream never copies data
from the base image and its backing chain, so this is effectively a
no-op.

In addition to fixing the base parameter, this patch also writes some
data to the intermediate image before the test, so there's something
to copy and the test is meaningful.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 2efa304da38b32d47c120ce728568a589c5a3afc.1458566441.git.berto@igalia.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
This commit is contained in:
Alberto Garcia 2016-03-21 15:47:26 +02:00 committed by Jeff Cody
parent 6578629e08
commit 5e302a7de6

View File

@ -35,6 +35,7 @@ class TestSingleDrive(iotests.QMPTestCase):
qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, mid_img)
qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % mid_img, test_img)
qemu_io('-f', 'raw', '-c', 'write -P 0x1 0 512', backing_img)
qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x1 524288 512', mid_img)
self.vm = iotests.VM().add_drive("blkdebug::" + test_img)
self.vm.launch()
@ -93,7 +94,7 @@ class TestSingleDrive(iotests.QMPTestCase):
def test_stream_partial(self):
self.assert_no_active_block_jobs()
result = self.vm.qmp('block-stream', device='drive0', base=mid_img)
result = self.vm.qmp('block-stream', device='drive0', base=backing_img)
self.assert_qmp(result, 'return', {})
self.wait_until_completed()