### Question:
PhenoSetTimeLineImpl implements PhenoSetTimeLine { @Override public List<PhenotypeComponent> getTimeLine() { return new LinkedList<>(this.phenosetTimeLine); } PhenoSetTimeLineImpl(PhenoSet phenoset); @Override PhenoSet phenoset(); @Override List<PhenotypeComponent> getTimeLine(); @Override void insert(PhenotypeComponent newAbnorm); @Override PhenotypeComponent current(Date date); @Override PhenotypeComponent persistDuring(Date start, Date end); @Override List<PhenotypeComponent> occurredDuring(Date start, Date end);  }### Answer:
@Test public void getTimeLine() { assertEquals(4, glucosetimeLine.getTimeLine().size()); }