Unit Test for WrodCount MapReduce

import java.io.IOException;
import java.util.Arrays;

import org.apache.hadoop.io.*;
import org.apache.hadoop.mrunit.mapreduce.MapDriver;
import org.apache.hadoop.mrunit.mapreduce.ReduceDriver;
import org.junit.*;

public class WordCountTest {

public void mapperTest() throws IOException, InterruptedException {
Text value = new Text("Hello");
new MapDriver().withMapper(new TokenizerMapper())
.withInput(new IntWritable(), value).withOutput(new Text("Hello"), new IntWritable(1)).runTest();

public void reducerTest() throws IOException, InterruptedException {
new ReduceDriver().withReducer(new IntSumReducer())
.withInput(new Text("Hello"), Arrays.asList(new IntWritable(1), new IntWritable(1)))
.withOutput(new Text("Hello"), new IntWritable(2)).runTest();


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s