[jira] [Created] (FLINK-4960) Enable testing of different re-scaling scenarios in the AbstractStreamOperatorTestHarness to

[Shang Yuanchun (Jira)]

Kostas Kloudas created FLINK-4960:
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             Summary: Enable testing of different re-scaling scenarios in the AbstractStreamOperatorTestHarness to
                 Key: FLINK-4960
                 URL: https://issues.apache.org/jira/browse/FLINK-4960
             Project: Flink
          Issue Type: New Feature
          Components: Tests
            Reporter: Kostas Kloudas
            Assignee: Kostas Kloudas
             Fix For: 1.2.0


Currently the AbstractStreamOperatorTestHarness allows for testing scaling
up scenarios through snapshot and restore. This is not enough to check
scaling down scenarios or different combinations of up and down.

This issue targets to add this functionality so that an operator can snapshot
its state, restore with different parallelism, and later scale down or further up.



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