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Date: Thu, 12 Nov 2009 23:28:39 +0000 (UTC)
From: "Jakob Homan (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Subject: [jira] Commented: (HDFS-669) Add unit tests
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    [ https://issues.apache.org/jira/browse/HDFS-669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12777263#action_12777263 ] 

Jakob Homan commented on HDFS-669:
----------------------------------

I take back the Hudson comment.  Hudson will bomb without the new unit directory.  the current, stripped-down version of the patch doesn't include any Java, so Hudson won't be helpful.  +1 on going without it. 

> Add unit tests 
> ---------------
>
>                 Key: HDFS-669
>                 URL: https://issues.apache.org/jira/browse/HDFS-669
>             Project: Hadoop HDFS
>          Issue Type: Test
>          Components: test
>    Affects Versions: 0.21.0, 0.22.0
>            Reporter: Eli Collins
>            Assignee: Konstantin Boudnik
>         Attachments: HDFS-669.patch, HDFS-669.patch, HDFS-669.patch, HDFS-669.patch, HDFS-669.patch, HDFS-669.patch, HDFS-669.patch, HDFS-669.sh, 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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