public void testStatementListReifiedStatements() {
   Statement st = SPO;
   Model m = model;
   assertEquals(
       "it's not there yet", empty, GraphTestBase.iteratorToSet(st.listReifiedStatements()));
   ReifiedStatement rs = m.createReifiedStatement(aURI, st);
   Set justRS = arrayToSet(new Object[] {rs});
   m.add(rs, P, O);
   assertEquals("it's here now", justRS, GraphTestBase.iteratorToSet(st.listReifiedStatements()));
 }
 public Set getSetRS(Model m, Statement st) {
   return GraphTestBase.iteratorToSet(m.listReifiedStatements(st));
 }