### Question:
TreatmentDefinition extends AbstractEntity implements Comparable<TreatmentDefinition> { public boolean match(TreatmentActivity act) { if (act == null) { return false; } Map<Drug, Category> toMatch = new HashMap<Drug, Category>(); for (Category cat : getContents()) { toMatch.put(cat.getDrug(), cat); } for (DrugTreatment t : act.getTreatments()) { Category cat = toMatch.get(t.getDrug()); if (cat == null || !cat.match(t)) { return false; } toMatch.remove(t.getDrug()); } return toMatch.isEmpty(); } TreatmentDefinition(Category category);  TreatmentDefinition(Collection<Category> contents);  TreatmentDefinition(); static TreatmentDefinition createTrivial(Collection<Drug> drugs); static TreatmentDefinition createTrivial(Drug drug); @Override Set<? extends Entity> getDependencies(); SortedSet<Category> getContents(); String getLabel(); @Override boolean equals(Object o); @Override boolean deepEquals(Entity o); @Override int hashCode(); @Override int compareTo(TreatmentDefinition o); @Override String toString(); boolean match(TreatmentActivity act); boolean match(Study study, Arm arm);  }### Answer:
@Test public void testMatch() { TreatmentActivity act1 = new TreatmentActivity(); act1.addTreatment(ExampleData.buildDrugEscitalopram(), new FixedDose(12.0, DoseUnit.createMilliGramsPerDay())); TreatmentActivity act2 = new TreatmentActivity(); act2.addTreatment(ExampleData.buildDrugViagra(), new FixedDose(12.0, DoseUnit.createMilliGramsPerDay())); assertTrue(d_single.match(act1)); assertFalse(d_single.match(act2)); TreatmentActivity act3 = new TreatmentActivity(); act3.addTreatment(ExampleData.buildDrugViagra(), new FlexibleDose(3.0, 7.0, DoseUnit.createMilliGramsPerDay())); FixedDose fixed1 = new FixedDose(12.0, DoseUnit.createMilliGramsPerDay()); act3.addTreatment(ExampleData.buildDrugCandesartan(), fixed1); TreatmentActivity act4 = new TreatmentActivity(); act4.addTreatment(ExampleData.buildDrugCitalopram(), new FlexibleDose(1.0, 12.0, DoseUnit.createMilliGramsPerDay())); act4.addTreatment(ExampleData.buildDrugEscitalopram(), new FlexibleDose(3.0, 7.0, DoseUnit.createMilliGramsPerDay())); assertFalse(d_multi.match(act1)); assertFalse(d_multi.match(act2)); assertTrue(d_multi.match(act3)); assertFalse(d_multi.match(act4)); assertFalse(d_single.match(act4)); TreatmentCategorization fixedCats = ExampleData.buildCategorizationFixedDose(ExampleData.buildDrugCitalopram()); d_single.getContents().add(fixedCats.getCategories().get(0)); assertFalse(d_single.match(act4)); d_multi.getContents().clear(); TreatmentCategorization candUpto20mg = ExampleData.buildCategorizationUpto20mg(ExampleData.buildDrugCandesartan()); TreatmentCategorization fluoxto20mg = ExampleData.buildCategorizationUpto20mg(ExampleData.buildDrugViagra()); d_multi.getContents().add(candUpto20mg.getCategories().get(0)); d_multi.getContents().add(fluoxto20mg.getCategories().get(0)); assertTrue(d_multi.match(act3)); fixed1.setQuantity(26.0); assertFalse(d_multi.match(act3)); }