@Test
public void getAllClassDataPropertiesTest() throws Exception {

    assertEquals(2, ontology.getAllClassDataProperties(classIRI).size());
    assertEquals(1, ontology.getAllClassDataProperties(classIRIC).size());
    assertEquals(1, ontology.getAllClassDataProperties(classIRID).size());
    assertEquals(1, ontology.getAllClassDataProperties(classIRIE).size());
}