### Question:
JPAEdmNavigationProperty extends JPAEdmBaseViewImpl implements JPAEdmNavigationPropertyView { @Override public NavigationProperty getEdmNavigationProperty() { return currentNavigationProperty; } JPAEdmNavigationProperty(final JPAEdmAssociationView associationView, final JPAEdmPropertyView propertyView,
      final int countNumber);  JPAEdmNavigationProperty(final JPAEdmSchemaView schemaView); @Override JPAEdmBuilder getBuilder(); @Override NavigationProperty getEdmNavigationProperty(); @Override List<NavigationProperty> getConsistentEdmNavigationProperties(); @Override void addJPAEdmNavigationPropertyView(final JPAEdmNavigationPropertyView view);  }### Answer:
@Test public void testGetEdmNavigationProperty() { if (objNavigationProperty == null || objNavigationProperty.getEdmNavigationProperty() == null) { JPAEdmNavigationPropertyTest localView = new JPAEdmNavigationPropertyTest(); navPropView = new JPAEdmNavigationPropertyTest(); objNavigationProperty = new JPAEdmNavigationProperty(localView, localView, 1); try { objNavigationProperty.getBuilder().build(); } catch (ODataJPAModelException e) { fail(ODataJPATestConstants.EXCEPTION_MSG_PART_1 + e.getMessage() + ODataJPATestConstants.EXCEPTION_MSG_PART_2); } catch (ODataJPARuntimeException e) { fail(ODataJPATestConstants.EXCEPTION_MSG_PART_1 + e.getMessage() + ODataJPATestConstants.EXCEPTION_MSG_PART_2); } } assertEquals( objNavigationProperty.getEdmNavigationProperty().getName(), "StringDetails"); }