Chesnay Schepler created FLINK-8731:
---------------------------------------
Summary: TwoInputStreamTaskTest flaky on travis
Key: FLINK-8731
URL: https://issues.apache.org/jira/browse/FLINK-8731
Project: Flink
Issue Type: Improvement
Components: Streaming, Tests
Affects Versions: 1.5.0
Reporter: Chesnay Schepler
https://travis-ci.org/zentol/flink/builds/344307861
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Tests run: 5, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 2.479 sec <<<
FAILURE! - in org.apache.flink.streaming.runtime.tasks.TwoInputStreamTaskTest
testOpenCloseAndTimestamps(org.apache.flink.streaming.runtime.tasks.TwoInputStreamTaskTest)
Time elapsed: 0.05 sec <<< ERROR!
java.lang.Exception: error in task
at
org.apache.flink.streaming.runtime.tasks.StreamTaskTestHarness.waitForTaskCompletion(StreamTaskTestHarness.java:250)
at
org.apache.flink.streaming.runtime.tasks.StreamTaskTestHarness.waitForTaskCompletion(StreamTaskTestHarness.java:233)
at
org.apache.flink.streaming.runtime.tasks.TwoInputStreamTaskTest.testOpenCloseAndTimestamps(TwoInputStreamTaskTest.java:99)
Caused by: org.mockito.exceptions.misusing.WrongTypeOfReturnValue:
Boolean cannot be returned by getChannelIndex()
getChannelIndex() should return int
***
If you're unsure why you're getting above error read on.
Due to the nature of the syntax above problem might occur because:
1. This exception *might* occur in wrongly written multi-threaded tests.
Please refer to Mockito FAQ on limitations of concurrency testing.
2. A spy is stubbed using when(spy.foo()).then() syntax. It is safer to stub
spies -
- with doReturn|Throw() family of methods. More in javadocs for
Mockito.spy() method.
at
org.apache.flink.runtime.io.network.partition.consumer.UnionInputGate.waitAndGetNextInputGate(UnionInputGate.java:212)
at
org.apache.flink.runtime.io.network.partition.consumer.UnionInputGate.getNextBufferOrEvent(UnionInputGate.java:158)
at
org.apache.flink.streaming.runtime.io.BarrierBuffer.getNextNonBlocked(BarrierBuffer.java:164)
at
org.apache.flink.streaming.runtime.io.StreamTwoInputProcessor.processInput(StreamTwoInputProcessor.java:292)
at
org.apache.flink.streaming.runtime.tasks.TwoInputStreamTask.run(TwoInputStreamTask.java:115)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:308)
at
org.apache.flink.streaming.runtime.tasks.StreamTaskTestHarness$TaskThread.run(StreamTaskTestHarness.java:437)
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