### Question:
JPAEdmReferentialConstraint extends JPAEdmBaseViewImpl implements JPAEdmReferentialConstraintView { @Override public String getEdmRelationShipName() { return relationShipName; } JPAEdmReferentialConstraint(final JPAEdmAssociationView associationView,
      final JPAEdmEntityTypeView entityTypeView, final JPAEdmPropertyView propertyView); @Override JPAEdmBuilder getBuilder(); @Override ReferentialConstraint getEdmReferentialConstraint(); @Override boolean isExists(); @Override String getEdmRelationShipName();  }### Answer:
@Test public void testGetRelationShipName() { assertEquals("Assoc_SalesOrderHeader_SalesOrderItem", objJPAEdmReferentialConstraint.getEdmRelationShipName()); }