### Question:
MatchupGenerator extends BasicTool { static Coincidence createSecondaryCoincidence(SamplingPoint p, Matchup matchup, RelatedObservation o2) { final Coincidence coincidence = createCoincidence(matchup, o2); final Date matchupTime = matchup.getRefObs().getTime(); final Date relatedTime = new Date(p.getReference2Time()); coincidence.setTimeDifference(TimeUtil.getTimeDifferenceInSeconds(matchupTime, relatedTime)); return coincidence; } MatchupGenerator(); static void main(String[] args); @Override void initialize();  }### Answer:
@Test public void testCreateSecondaryCoincidence() { final Matchup matchup = new Matchup(); final ReferenceObservation referenceObservation = new ReferenceObservation(); referenceObservation.setTime(new Date(1000000000L)); matchup.setRefObs(referenceObservation); final RelatedObservation relatedObservation = new RelatedObservation(); final SamplingPoint samplingPoint = new SamplingPoint(); samplingPoint.setReference2Time(1005000000L); final Coincidence coincidence = MatchupGenerator.createSecondaryCoincidence(samplingPoint, matchup, relatedObservation); assertNotNull(coincidence); assertSame(matchup, coincidence.getMatchup()); assertSame(relatedObservation, coincidence.getObservation()); assertEquals(5000, coincidence.getTimeDifference(), 1e-8); }