Chesnay Schepler created FLINK-8238:
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Summary: StreamTaskTestHarness should only allow one setup call
Key: FLINK-8238
URL: https://issues.apache.org/jira/browse/FLINK-8238
Project: Flink
Issue Type: Improvement
Components: Streaming, Tests
Affects Versions: 1.5.0
Reporter: Chesnay Schepler
Fix For: 1.5.0
The {{StreamTaskTestHarness}} offers 2 methods for settting up an
{{OperatorChain}}:
* setupOutputForSingletonOperatorChain
* setupOperatorChain
We should add a check to make sure that only one of these methods is called.
Calling both methods leads to undefined behavior by the task and is a bit
tricky to debug.
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