[GitHub] [pulsar] lhotari commented on issue #13620: Flaky-test: Spy creation sporadically fails in some tests and causes Mockito misuse warning

[GitBox <gi...@apache.org>]

lhotari commented on issue #13620:
URL: https://github.com/apache/pulsar/issues/13620#issuecomment-1060702619


   [recent failure](https://github.com/apache/pulsar/runs/5445398064?check_suite_focus=true#step:9:469)
   ```
   Error:  Tests run: 91, Failures: 26, Errors: 0, Skipped: 49, Time elapsed: 21.236 s <<< FAILURE! - in org.apache.pulsar.broker.service.persistent.PersistentTopicStreamingDispatcherTest
   Error:  setup(org.apache.pulsar.broker.service.persistent.PersistentTopicStreamingDispatcherTest)  Time elapsed: 0.129 s  <<< FAILURE!
   org.mockito.exceptions.misusing.WrongTypeOfReturnValue: 
   
   BrokerService cannot be returned by getPulsarResources()
   getPulsarResources() should return PulsarResources
   ***
   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.pulsar.broker.PulsarService.getBrokerService(PulsarService.java:1189)
   	at org.apache.pulsar.broker.service.PersistentTopicTest.setup(PersistentTopicTest.java:212)
   	at org.apache.pulsar.broker.service.persistent.PersistentTopicStreamingDispatcherTest.setup(PersistentTopicStreamingDispatcherTest.java:34)
   	at jdk.internal.reflect.GeneratedMethodAccessor211.invoke(Unknown Source)
   	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
   	at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:132)
   	at org.testng.internal.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:61)
   ```


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