public void testBasic() {
    Model mrdfs = ModelFactory.createRDFSModel(ModelFactory.createDefaultModel());
    Model concrete = ModelFactory.createDefaultModel();
    concrete.add(mrdfs);

    assertIsomorphic(concrete.getGraph(), mrdfs.getGraph());

    assertIsomorphic(mrdfs.getGraph(), concrete.getGraph());
  }
 @Override
 public Model getModel() {
   return ModelFactory.createDefaultModel();
 }
 public void testBulkByModel() {
   testBulkByModel(ModelFactory.createDefaultModel());
 }
 public void testMBU() {
   testMBU(ModelFactory.createDefaultModel());
 }