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https://issues.apache.org/jira/browse/BEAM-546?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17139855#comment-17139855
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Beam JIRA Bot commented on BEAM-546:
------------------------------------
This issue was marked "stale-assigned" and has not received a public comment in
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the work.
> Aggregator Verifier and Integrate to E2E Test Framework
> -------------------------------------------------------
>
> Key: BEAM-546
> URL: https://issues.apache.org/jira/browse/BEAM-546
> Project: Beam
> Issue Type: Task
> Components: testing
> Reporter: Mark Liu
> Priority: P3
>
> Create a matcher to verify the value of
> [Aggregator|https://github.com/apache/incubator-beam/blob/master/sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/Aggregator.java],
> which is
> [AggregatorValues|https://github.com/apache/incubator-beam/blob/master/sdks/java/core/src/main/java/org/apache/beam/sdk/AggregatorValues.java],
> by given expected values.
> For example:
> {code}
> MyFnWithAggregator fn = new MyFnWithAggregator();
> Pipeline p = ... (setup the pipeline, use fn) ...
> p.run();
> assertThat(pResult, isAggregatorValue(values, fn.aggregator));
> {code}
> It also should be integrated in E2E pipeline test and used by setting
> onSuccessMatcher.
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