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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11895) Support running a specific subset of tests in test-patch.sh.
Date Thu, 30 Apr 2015 18:09:06 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11895?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14521966#comment-14521966

Chris Nauroth commented on HADOOP-11895:

There are a few use cases I have in mind for this:
* If we're troubleshooting a flaky test failure that only repros in Jenkins, then we can issue
runs in rapid succession to troubleshoot that specific test.
* If we're posting a prototype patch that isn't intended to be committed, then it might still
be valuable to click Submit Patch to run a small subset of tests as a basic check.
* If we're working on a feature branch, then we might prefer quicker test cycles initially,
followed by full test runs towards the end of development.

We could do something like allowing a patch to provide a /test-to-run text file listing the
test suites to run, which test-patch.sh would feed into {{mvn test -Dtest=...}}.  Feature
branches might choose to commit the file temporarily if it's helpful.

We might want the output from test-patch.sh to vote -1 automatically if this feature is used.
 That would help committers avoid accidentally committing a patch that hadn't gone through
the full test run.

> Support running a specific subset of tests in test-patch.sh.
> ------------------------------------------------------------
>                 Key: HADOOP-11895
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11895
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: scripts
>            Reporter: Chris Nauroth
> test-patch.sh currently runs {{mvn test}} in the sub-modules that are changed by the
patch.  Due to long-running tests, this can slow down development for certain kinds of patches.
 This issue proposes an enhancement to test-patch.sh to support a faster mode of execution
that applies the patch and runs {{mvn test -Dtest=...}}.

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