MRUnit is a Java library that helps developers unit test Apache Hadoop
MapReduce jobs. Unit testing is a technique for improving project quality
and reducing overall costs by writing a small amount of code that can
automatically verify the software you write performs as intended. This is
considered a best practice in software development since it helps identify
defects early, before they're deployed to a production system.


  • The last release of Apache MRUnit was version 1.1.0, released on
    June 8, 2014. This was MRUnit's second release since graduation in May 2012.


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  • Total of 13 committers
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