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https://issues.apache.org/jira/browse/KAFKA-20522?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lianet Magrans resolved KAFKA-20522.
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Resolution: Fixed
> Refine test coverage for consumer close-on-interrupt best-effort behavior
> -------------------------------------------------------------------------
>
> Key: KAFKA-20522
> URL: https://issues.apache.org/jira/browse/KAFKA-20522
> Project: Kafka
> Issue Type: Improvement
> Reporter: sanghyeok An
> Assignee: sanghyeok An
> Priority: Minor
>
> Improve test coverage for consumer close-on-interrupt behavior by replacing
> flaky integration-level verification with assertions that match the current
> best-effort semantics.
> Instead of checking whether the broker actually observes group leave
> completion, the updated tests will verify that the consumer triggers the
> leave logic as expected during close.
> This may involve either moving the current integration test to a unit test,
> or improving the integration test itself. This makes the test more
> deterministic and better aligned with the intended behavior.
>
>
> *Related Test codes*
> - PlaintextConsumerTest testCloseLeavesGroupOnInterrupt (classic)
>
> *Related Issues*
> - https://issues.apache.org/jira/browse/KAFKA-17397
> - https://issues.apache.org/jira/browse/KAFKA-18031
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