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From "posa Wu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MRUNIT-158) withOutput doesn't generate useful information with MapWritable on error
Date Tue, 20 Nov 2012 08:34:58 GMT

    [ https://issues.apache.org/jira/browse/MRUNIT-158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13500917#comment-13500917
] 

posa Wu commented on MRUNIT-158:
--------------------------------

 I can not agree more.I was stuck by a problem and I have to debug the mrunit source to fix
it, this is not a good idea..
                
> withOutput doesn't generate useful information with MapWritable on error
> ------------------------------------------------------------------------
>
>                 Key: MRUNIT-158
>                 URL: https://issues.apache.org/jira/browse/MRUNIT-158
>             Project: MRUnit
>          Issue Type: Improvement
>    Affects Versions: 0.9.0
>            Reporter: Patrick Hunt
>            Priority: Minor
>
> Using withOutput generates the following, notice that the hashcode is printed rather
than some useful detail as to the content of the maps:
> Nov 9, 2012 2:40:01 PM org.apache.hadoop.mrunit.TestDriver logError
> SEVERE: Missing expected output (null-0, org.apache.hadoop.io.MapWritable@e1) at position
0.
> Nov 9, 2012 2:40:01 PM org.apache.hadoop.mrunit.TestDriver logError
> SEVERE: Received unexpected output (null-0, org.apache.hadoop.io.MapWritable@2059) at
position 0.

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