[jira] [Created] (BEAM-987) TestStream.advanceWatermarkToInfinity should perhaps also advance processing time

["Eugene Kirpichov (JIRA)" <ji...@apache.org>]

Eugene Kirpichov created BEAM-987:
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             Summary: TestStream.advanceWatermarkToInfinity should perhaps also advance processing time
                 Key: BEAM-987
                 URL: https://issues.apache.org/jira/browse/BEAM-987
             Project: Beam
          Issue Type: Bug
            Reporter: Eugene Kirpichov
            Assignee: Thomas Groh


I ran into this when writing a test for Splittable DoFn whose input was a TestStream. I constructed a TestStream that didn't call advanceProcessingTime, and as a result, the SDF's timers didn't fire and the test got stuck.

I think the meaning of "advanceWatermarkToInfinity" is "don't add any more elements to the stream and see what happens eventually", and "eventually" includes "eventually in processing time domain", not just in event-time domain (watermark).



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