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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-8306) FlinkKafkaConsumerBaseTest has invalid mocks on final methods
Date Fri, 12 Jan 2018 02:15:01 GMT

    [ https://issues.apache.org/jira/browse/FLINK-8306?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16323431#comment-16323431

ASF GitHub Bot commented on FLINK-8306:

Github user tzulitai closed the pull request at:


> FlinkKafkaConsumerBaseTest has invalid mocks on final methods
> -------------------------------------------------------------
>                 Key: FLINK-8306
>                 URL: https://issues.apache.org/jira/browse/FLINK-8306
>             Project: Flink
>          Issue Type: Bug
>          Components: Kafka Connector, Tests
>            Reporter: Tzu-Li (Gordon) Tai
>            Assignee: Tzu-Li (Gordon) Tai
>            Priority: Critical
>             Fix For: 1.5.0, 1.4.1
> The {{FlinkKafkaConsumerBaseTest}} has invalid mocks on a final {{AbstractFetcher::commitInternalOffsetsToKafka(...)}}
method. While an easy fix would be to simply make that method non-final, that is not ideal
since it would be best that the method is left final to prevent overrides in subclasses.
> This suggests that offset committing functionality is too tightly coupled with the {{AbstractFetcher}},
making it hard to perform concise tests to verify offset committing.
> I suggest that we decouple record fetching and offset committing as separate services
behind different interfaces. We should introduce a new interface, say {{KafkaOffsetCommitter}},
and test against that instead. Initially, we can simply let {{AbstractFetcher}} implement

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