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https://issues.apache.org/jira/browse/CASSANDRA-13458?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15998297#comment-15998297
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Stefan Podkowinski commented on CASSANDRA-13458:
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[~bdeggleston], I was just reviewing your proposed guidelines on [what should
be tested in a unit
test|https://github.com/bdeggleston/cassandra/blob/testing-doc/TESTING.md#what-should-be-tested]
and wonder if this ticket could be helpful for implementing listed test cases.
I've now added an example for testing error handling as well. Please see
[testing.rst|https://github.com/spodkowinski/cassandra/blob/WIP-13458/doc/source/development/testing.rst#diagnostic-events-40]
and {{testExceptionInPendingRangeCalc}} in
[PendingRangeCalculatorServiceTest.java|https://github.com/spodkowinski/cassandra/blob/WIP-13458/test/unit/org/apache/cassandra/gms/PendingRangeCalculatorServiceTest.java]
as example. Let me know if you have any ideas or comments.
> Diag. Events: Add unit testing support
> --------------------------------------
>
> Key: CASSANDRA-13458
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13458
> Project: Cassandra
> Issue Type: Sub-task
> Components: Testing
> Reporter: Stefan Podkowinski
> Assignee: Stefan Podkowinski
>
> Diagnostic events will improve unit testing by
> * providing test execution control instances based on CompletableFutures (see
> [PendingRangeCalculatorServiceTest.java|https://github.com/spodkowinski/cassandra/blob/WIP-13458/test/unit/org/apache/cassandra/gms/PendingRangeCalculatorServiceTest.java])
>
> * validate state and behavior by allowing you to inspect generated events
> (see
> [HintsServiceEventsTest.java|https://github.com/spodkowinski/cassandra/blob/WIP-13458/test/unit/org/apache/cassandra/hints/HintsServiceEventsTest.java])
> See included
> [testing.rst|https://github.com/spodkowinski/cassandra/blob/WIP-13458/doc/source/development/testing.rst#diagnostic-events-40]
> draft for more details. Let me know if this would be useful for you as a
> developer.
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