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https://issues.apache.org/jira/browse/BEAM-853?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amit Sela updated BEAM-853:
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Comment: was deleted
(was: Streaming tests require forcing streaming mode on
{{BoundedFromUnbounded}}, and {{PAssert}} requires proper {{GroupByKey}}
implementation, so those two go together.)
> Force streaming execution on batch pipelines for testing.
> ---------------------------------------------------------
>
> Key: BEAM-853
> URL: https://issues.apache.org/jira/browse/BEAM-853
> Project: Beam
> Issue Type: Bug
> Components: runner-spark
> Reporter: Amit Sela
> Assignee: Amit Sela
>
> Beam's {{RunnableOnService}} tests for runners are written with bounded reads
> so the SparkRunner should force a streaming pipeline on an "all-batch"
> pipeline.
> Currently the runner will decide the translation (batch/streaming) according
> to the input PCollection boundness (in case of input, according to output).
> One way to overcome this would be to override this behaviour in
> {{TestSparkRunner}}.
> Another challenge is the implementation itself - we could clearly read the
> RDD and create a single-RDD-DStream of it (following RDDs will be empty) but
> this will miss the point of testing streaming pipelines both for testing the
> execution of {{Read.Unbounded}} and for testing across-microbatches (tests
> state management).
> Finally, we have to consider how this is going to play nicely with
> {{SplittableDoFn}}.
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