@Test
public void findFirstVersionIRIOneTest() {

    Model model = mf.createModel();
    model.add(ontologyIRI, type, ontologyObj);
    model.add(ontologyIRI, versionType, versionIRI);
    Optional<IRI> versionIRIOpt = OntologyModels.findFirstVersionIRI(model, ontologyIRI, vf);
    assertTrue(versionIRIOpt.isPresent());
    assertEquals(versionIRI, versionIRIOpt.get());
}