public void test() throws IOException {
PipeReducer pipeReducer = new MockPipeReducer();
pipeReducer.configure(new JobConf());
HBaseJSONOutputReader outputReader = new HBaseJSONOutputReader();
outputReader.initialize(pipeReducer);
assertTrue(outputReader.readKeyValue());
//first key value
ImmutableBytesWritable expectedKey1 = new ImmutableBytesWritable(keyString1.getBytes("UTF-8"));