@Test
public void findFirstOntologyIRIOneTest() {

    Model model = mf.createModel();
    model.add(ontologyIRI, type, vf.createIRI(OWL.ONTOLOGY.stringValue()));
    Optional<IRI> ontologyIRIOpt = OntologyModels.findFirstOntologyIRI(model, vf);
    assertTrue(ontologyIRIOpt.isPresent());
    assertEquals(ontologyIRI, ontologyIRIOpt.get());
}