@Test
 public void testCreateOntologyChange() {
   AddImportData data = createData();
   AddImport change = data.createOntologyChange(mockOntology);
   assertEquals(mockOntology, change.getOntology());
   assertEquals(mockDeclaration, change.getImportDeclaration());
 }
 @Test
 public void testOntologyChangeSymmetry() {
   AddImportData data = createData();
   AddImport change = new AddImport(mockOntology, mockDeclaration);
   assertEquals(change.getChangeData(), data);
 }