[jira] [Created] (SPARK-18272) Test topic addition for subscribePattern on Kafka DStream and Structured Stream

["Cody Koeninger (JIRA)" <ji...@apache.org>]

Cody Koeninger created SPARK-18272:
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             Summary: Test topic addition for subscribePattern on Kafka DStream and Structured Stream
                 Key: SPARK-18272
                 URL: https://issues.apache.org/jira/browse/SPARK-18272
             Project: Spark
          Issue Type: Bug
          Components: DStreams, Structured Streaming
            Reporter: Cody Koeninger


We've had reports of the following sequence

- create subscribePattern stream that doesn't match any existing topics at the time stream starts
- add a topic that matches pattern
- expect that messages from that topic show up, but they don't

We don't seem to actually have tests that cover this case, so we should add them



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