### Question:
PsmDocument { public PsmCollection getSingularResourceName() { return singularResourceName; } PsmDocument(final TYPE type, final PsmResource graphResourceName, final PsmCollection singularResourceName); @Override String toString(); TYPE getType(); PsmResource getGraphAssociationEndName(); PsmCollection getSingularResourceName();  }### Answer:
@Test public void testGetSingularResourceName() { assertEquals("test collection", doc.getSingularResourceName().getName()); }