@Test
public void testReducerForBytesWritableKeyAndValue() throws IOException,
InterruptedException {
BytesWritable key = new BytesWritable("abc123".getBytes());
HihoTuple hihoTuple = new HihoTuple();
hihoTuple.setKey(key);
HihoValue hihoValue1 = new HihoValue();
HihoValue hihoValue2 = new HihoValue();
BytesWritable value1 = new BytesWritable("value1".getBytes());
BytesWritable value2 = new BytesWritable("value2".getBytes());