Testing Reducer
Explore how to create and run unit tests for reducer classes in Hadoop MapReduce. Understand the use of input and output methods for verifying reducer logic and learn about various output formats, including the default TextOutputFormat. This lesson equips you with practical skills to ensure your reducer code works correctly within big data workflows.
We'll cover the following...
We'll cover the following...
Testing Reducer
We can write a unit test case for our reducer class CarReducer like how we wrote a unit test case for our mapper class. The code below is self-explanatory. The input ...