https://cwiki.apache.org/confluence/display/MRUNIT/Board+Report+(March+2013)
The 1.0 release has two blockers both of which have patches. I am going to get those committed today. https://issues.apache.org/jira/issues/?jql=project%20%3D%20MRUNIT%20AND%20resolution%20%3D%20Unresolved%20AND%20fixVersion%20%3D%20%221.0.0%22%20ORDER%20BY%20priority%20DESC -- Apache MRUnit - Unit testing MapReduce - http://incubator.apache.org/mrunit/