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https://issues.apache.org/jira/browse/HADOOP-4901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12657717#action_12657717
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Tom White commented on HADOOP-4901:
-----------------------------------
Categories would be nice to have. The documentation for JUnit 4.4 at
http://junit.sourceforge.net/doc/ReleaseNotes4.4.html mentions categories, and
says
bq. This feature will very likely be improved before the final release of JUnit
4.5
However I can't find a Category annotation in 4.5, so perhaps it hasn't been
added yet. There is a JUnit Extension project at
http://junitext.sourceforge.net/ (Apache-licensed) which does define a Category
annotation for this purpose. (I haven't tried it.)
Here is a comparison of TestNG and JUnit 4:
http://xplanner.codehaus.org/Migration+to+JUnit4+or+TestNG. TestNG requires
source migration of tests, whereas JUnit 4 is just a change of jar.
BTW I wrote a blog entry with some other ideas for improving testing at
http://www.cloudera.com/blog/2008/12/16/testing-hadoop/
> Upgrade to JUnit 4
> ------------------
>
> Key: HADOOP-4901
> URL: https://issues.apache.org/jira/browse/HADOOP-4901
> Project: Hadoop Core
> Issue Type: Improvement
> Components: test
> Reporter: Tom White
> Assignee: Tom White
>
> Amongst other things, JUnit 4 has better support for class-wide set up and
> tear down (via @BeforeClass and @AfterClass annotations), and more flexible
> assertions (http://junit.sourceforge.net/doc/ReleaseNotes4.4.html). It would
> be nice to be able to take advantage of these features in tests we write.
> JUnit 4 can run tests written for JUnit 3.8.1 without any changes.
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