@Test
public void shouldEmitFirstFieldOfTuple() {
bolt.execute(tuple, collector);
verify(tuple, times(1)).getValue(0);
verify(collector, times(1)).emit(any(Values.class));
}
@Test
public void shouldDeclareOutputFields() {
bolt.declareOutputFields(declarer);
verify(declarer, times(1)).declare(any(Fields.class));
}