### Question:
JPAEdmEntitySet extends JPAEdmBaseViewImpl implements JPAEdmEntitySetView { @Override public JPAEdmBuilder getBuilder() { if (builder == null) { builder = new JPAEdmEntitySetBuilder(); } return builder; } JPAEdmEntitySet(final JPAEdmSchemaView view); @Override JPAEdmBuilder getBuilder(); @Override EntitySet getEdmEntitySet(); @Override List<EntitySet> getConsistentEdmEntitySetList(); @Override JPAEdmEntityTypeView getJPAEdmEntityTypeView(); @Override void clean();  }### Answer:
@Test public void testGetBuilder() { assertNotNull(objJPAEdmEntitySet.getBuilder()); }
@Test public void testGetBuilderIdempotent() { JPAEdmBuilder builder1 = objJPAEdmEntitySet.getBuilder(); JPAEdmBuilder builder2 = objJPAEdmEntitySet.getBuilder(); assertEquals(builder1.hashCode(), builder2.hashCode()); }