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From "Konstantin Boudnik (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-669) Add unit tests
Date Thu, 05 Nov 2009 21:11:32 GMT

    [ https://issues.apache.org/jira/browse/HDFS-669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12774076#action_12774076
] 

Konstantin Boudnik commented on HDFS-669:
-----------------------------------------

Thanks Eli. Looking forward for the new version! 

Also, I've made some modifications of original MAPREDUCE-1050 which moved the true unit tests
under {{src/test/unit}}. Also it adds a separate unit test target. I believe, it make sense
to have a similar thing for HDFS.

> Add unit tests 
> ---------------
>
>                 Key: HDFS-669
>                 URL: https://issues.apache.org/jira/browse/HDFS-669
>             Project: Hadoop HDFS
>          Issue Type: Test
>          Components: test
>            Reporter: Eli Collins
>            Assignee: Eli Collins
>         Attachments: HDFS669.patch
>
>
> Most HDFS tests are functional tests that test a feature end to end by running a mini
cluster. We should add more tests like TestReplication that attempt to stress individual classes
in isolation, ie by stubbing out dependencies without running a mini cluster. This allows
for more fine-grain testing and making tests run much more quickly because they avoid the
cost of cluster setup and teardown. If it makes sense to use another framework besides junit
we should standardize with MAPREDUCE-1050. 

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