[ https://issues.apache.org/jira/browse/HDFS-669?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eli Collins updated HDFS-669:
-----------------------------

    Attachment: HDFS669.patch

Attached is a patch with a couple tests that exercise FSNamesystem directly. One tests rename in safe mode, the other the inode name quota (the latter is not a particularly great test since it can be easily verified at a higher-level but you get the idea). Each runs in less than a second on my laptop. NameNode's initMetrics method had to be made package rather than private.  That could be avoided by using the reflection API (Field.setAccessible) when running the test.

> 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. 

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.