About MRUnit

MRUnit is testing framework for testing MapReduce programs written for running in Hadoop ecosystem. MRUnit makes testing Mapper and Reducer classes easier.

For more information please see http://mrunit.apache.org.

How to use

    <dependency>
      <groupId>org.apache.mrunit</groupId>
      <artifactId>mrunit</artifactId>
      <version>0.9.0-incubating</version>
      <classifier>hadoop2</classifier>
    </dependency>

Where classifier is either hadoop1 or hadoop2 whichever matches the major version of hadoop you are using.

MRUnit Tutorial