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https://issues.apache.org/jira/browse/MRUNIT-66?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13231005#comment-13231005
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Jim Donofrio commented on MRUNIT-66:
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http://docs.oracle.com/javase/6/docs/api/java/lang/NullPointerException.html
Javadoc seems clear that we should throw a NullPointerException for
"Applications should throw instances of this class to indicate other illegal
uses of the null object." I think I will add a method to check for null and a
throw an exception with the passed in argument name everywhere we take an input
from the outside.
I will change the driver classes to all throw IllegalStateException when the
user doesnt pass in any input to a driver
> null input checks are inconsistent in at least the MapDriver class
> ------------------------------------------------------------------
>
> Key: MRUNIT-66
> URL: https://issues.apache.org/jira/browse/MRUNIT-66
> Project: MRUnit
> Issue Type: Improvement
> Affects Versions: 0.8.1
> Reporter: Jim Donofrio
> Assignee: Jim Donofrio
> Priority: Minor
> Fix For: 1.0.0
>
>
> the MapDriver class does not allow null input values if using setInput(Pair)
> but does allow null input if using setInputKey, setInputValue, or
> setInput(key, value)
> Also the MapDriver, ReduceDriver classes will throw null pointer exceptions
> with no input while the MapReduceDriver and Pipeline classes will just log
> warnings
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