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https://issues.apache.org/jira/browse/BEAM-11025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17209037#comment-17209037
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Ning Kang commented on BEAM-11025:
----------------------------------
Based on the standard output, it looks like the None is returned by one of the
failure paths when the environment is considered not in a notebook.
There could be a race condition when tests are running in parallel and
modifying the global instance ib.current_env().
In that case, a patch in the test to use a mocked `is_in_notebook` check should
be added.
> PCollectionVisualizationTest.test_dynamic_plotting_return_handle failing in
> precommit
> -------------------------------------------------------------------------------------
>
> Key: BEAM-11025
> URL: https://issues.apache.org/jira/browse/BEAM-11025
> Project: Beam
> Issue Type: Test
> Components: runner-py-interactive
> Reporter: Ning Kang
> Assignee: Ning Kang
> Priority: P2
>
> https://ci-beam.apache.org/job/beam_PreCommit_Python_Phrase/2241/testReport/junit/apache_beam.runners.interactive.display.pcoll_visualization_test/PCollectionVisualizationTest/test_dynamic_plotting_return_handle/
> Error Message
> AssertionError: None is not an instance of <class 'timeloop.app.Timeloop'>
> Stacktrace
> self =
> <apache_beam.runners.interactive.display.pcoll_visualization_test.PCollectionVisualizationTest
> testMethod=test_dynamic_plotting_return_handle>
> def test_dynamic_plotting_return_handle(self):
> h = pv.visualize(
> self._stream, dynamic_plotting_interval=1, display_facets=True)
> > self.assertIsInstance(h, timeloop.Timeloop)
> E AssertionError: None is not an instance of <class
> 'timeloop.app.Timeloop'>
> apache_beam/runners/interactive/display/pcoll_visualization_test.py:93:
> AssertionError
> Standard Output
> <IPython.core.display.HTML object>
> <IPython.core.display.HTML object>
> 0
> 0 0
> 1 1
> 2 2
> 3 3
> 4 4
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