问题
Is there a way to test a reduce class with MRUnit that uses MultipleOutputFormat to write to multiple output files?
回答1:
It looks like support for MultipleOutputs is still work in progress in the MRUnit Jira.
That being said, I found someone who implemented his own drivers subclassing MRUnit's MapReduceDriver to make it work with MultipleOutputs here, hope that helps.
回答2:
MRUnit 1.1.0 has been released in June 2014 (see http://mrunit.apache.org/)
This latest release includes support for MultipleOutputs (see https://issues.apache.org/jira/browse/MRUNIT-13)
来源：https://stackoverflow.com/questions/14423054/testing-multiple-outputs-with-mrunit