@Test
 public void testSymDifference() throws IOException, RestException {
   for (int i = 0; i < baseGeometries.length; i++) {
     Geometry[] results = topoQuery.symDifference(baseGeometries[i], baseGeometries);
     /*Assert.assertTrue(results.length == baseGeometries.length);
     for (int j = 0; j < results.length; j++) {
         Assert.assertNotNull(results[j]);
         Assert.assertTrue(results[j].toString().length()>0);
     }*/
   }
 }