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https://issues.apache.org/jira/browse/BEAM-1399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15873950#comment-15873950
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Davor Bonaci commented on BEAM-1399:
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Thanks [~staslev]; great analysis.
FYI [~jasonkuster].
> Code coverage numbers are not accurate
> --------------------------------------
>
> Key: BEAM-1399
> URL: https://issues.apache.org/jira/browse/BEAM-1399
> Project: Beam
> Issue Type: Bug
> Components: build-system, sdk-java-core, testing
> Reporter: Daniel Halperin
> Labels: newbie, starter
>
> We've started adding Java Code Coverage numbers to PRs using the jacoco
> plugin. However, we are getting very low coverage reported for things like
> the Java SDK core.
> My belief is that this is happening because we test the bulk of the SDK not
> in the SDK module , but in fact in the DirectRunner and other similar modules.
> JaCoCo has a {{report:aggregate}} target that might do the trick, but with a
> few minutes of playing with it I wasn't able to make it work satisfactorily.
> Basic work in https://github.com/apache/beam/pull/1800
> This is a good "random improvement" issue for anyone to pick up.
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