@Test
 public void testGetRelationsByType() {
   try {
     assertEquals(3, applicationElement.getRelationsByType(RelationType.FATHER_CHILD).length);
     assertEquals(4, applicationElement.getRelationsByType(RelationType.INFO).length);
     assertEquals(0, applicationElement.getRelationsByType(RelationType.INHERITANCE).length);
   } catch (AoException e) {
     fail(e.reason);
   }
 }