### Question:
TreatmentDefinition extends AbstractEntity implements Comparable<TreatmentDefinition> { @Override public boolean deepEquals(Entity o) { if(!equals(o)) { return false; } TreatmentDefinition other = (TreatmentDefinition) o; return EntityUtil.deepEqual(getContents(), other.getContents()); } 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 testDeepEquals() { assertFalse(d_empty.deepEquals(d_single)); assertFalse(d_empty.deepEquals(null)); assertFalse(d_empty.deepEquals(d_singleCategory)); assertTrue(d_empty.deepEquals(new TreatmentDefinition())); assertTrue(d_single.deepEquals(new TreatmentDefinition(d_singleCategory))); assertTrue(d_multi.deepEquals(new TreatmentDefinition(d_multiCategory))); Drug drug = new Drug(d_singleCategory.getCategorization().getDrug().getName(), "ATCFORYOUMYFRIEND"); TreatmentDefinition cat = TreatmentDefinition.createTrivial(drug); assertEquals(d_single, cat); assertFalse(d_single.deepEquals(cat)); }