ImmutableBytesWritable expectedKey2 = new ImmutableBytesWritable(keyString2.getBytes("UTF-8"));
assertEquals(expectedKey2, outputReader.getCurrentKey());
BatchUpdate expectedValue2 = new BatchUpdate(keyString2);
expectedValue2.put(column2, new byte[] {49, 57});
assertEquals(0, expectedValue2.compareTo(outputReader.getCurrentValue())); //no equals
assertFalse(outputReader.readKeyValue());
}