Re: [Qemu-devel] [PATCH v12 15/19] qemu-iotests: Test block-stream and block-commit in parallel

[Kevin Wolf <kwolf@redhat.com>]

Am 26.10.2016 um 12:29 hat Alberto Garcia geschrieben:
> As with test_stream_parallel(), we allow mixing block-stream and
> block-commit operations in the same backing chain as long as there's
> no overlap among the involved nodes.
> 
> Signed-off-by: Alberto Garcia <berto@igalia.com>
> ---
>  tests/qemu-iotests/030     | 30 ++++++++++++++++++++++++++++++
>  tests/qemu-iotests/030.out |  4 ++--
>  2 files changed, 32 insertions(+), 2 deletions(-)
> 
> diff --git a/tests/qemu-iotests/030 b/tests/qemu-iotests/030
> index e3bded8..d88823a 100755
> --- a/tests/qemu-iotests/030
> +++ b/tests/qemu-iotests/030
> @@ -315,6 +315,36 @@ class TestParallelOps(iotests.QMPTestCase):
>          self.assert_qmp(result, 'return', {})
>  
>          self.wait_until_completed(drive='commit-drive0')
> +
> +    # Test a block-stream and a block-commit job in parallel
> +    def test_stream_commit(self):
> +        self.assertLessEqual(8, self.num_imgs)
> +        self.assert_no_active_block_jobs()
> +
> +        # Stream from node0 into node2
> +        result = self.vm.qmp('block-stream', device='node2', job_id='node2')
> +        self.assert_qmp(result, 'return', {})
> +
> +        # Commit from the active layer into node3
> +        result = self.vm.qmp('block-commit', device='drive0', top=self.imgs[5], base=self.imgs[3])
> +        self.assert_qmp(result, 'return', {})

I'm not sure what you wanted to test here (active commit/mirror or
normal commit), but the comment and what you really do don't match. This
doesn't use the active layer...

> +        # Wait for all jobs to be finished.
> +        pending_jobs = ['node2', 'drive0']
> +        while len(pending_jobs) > 0:
> +            for event in self.vm.get_qmp_events(wait=True):
> +                if event['event'] == 'BLOCK_JOB_COMPLETED':
> +                    node_name = self.dictpath(event, 'data/device')
> +                    self.assertTrue(node_name in pending_jobs)
> +                    self.assert_qmp_absent(event, 'data/error')
> +                    pending_jobs.remove(node_name)
> +                if event['event'] == 'BLOCK_JOB_READY':
> +                    self.assert_qmp(event, 'data/device', 'drive0')
> +                    self.assert_qmp(event, 'data/type', 'commit')
> +                    self.assert_qmp_absent(event, 'data/error')
> +                    self.assertTrue('drive0' in pending_jobs)
> +                    self.vm.qmp('block-job-complete', device='drive0')

...so the BLOCK_JOB_READY handling is dead code because we're not using
a mirror job internally.

>          self.assert_no_active_block_jobs()
>  
>  class TestSmallerBackingFile(iotests.QMPTestCase):

Kevin