Package org.apache.hadoop.mrunit.mapreduce

Examples of org.apache.hadoop.mrunit.mapreduce.ReduceDriver.run()

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      list.add(createWritable(value, reducer.getValueInType()));
    }
    ReduceDriver reduceDriver = new ReduceDriver<Text, LongWritable, Text, LongWritable>();
    reduceDriver.withInput(createWritable(key, reducer.getKeyInType()), list);
    reduceDriver.setReducer(reducer);
    List results = reduceDriver.run();
    Collections.sort(results, PairComparer.INSTANCE);
    String header = String.format("(%s, %s)\r\n\r\n -> reduces via %s to -> \r\n", key, list, reducer.getClass()
        .getSimpleName());
    Approvals.verifyAll(header, results, Echo.INSTANCE);
  }
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    driver.getConfiguration().setInt("mapred.reduce.tasks", 10);

    List<Text> values = new ArrayList();
    values.add(new Text("bb"));
    driver.withInput(new Text("aa"), values);
    assertEquals("Reducer not executed", 1, driver.run().size());

  }
}
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