anchor.diff:        expect(slist[0], "http://www.example.com");
         final cbor.DartItem item = slistener.stack.peek();
         expect(item.hint, cbor.dataHints.uri);
  -
       });
   
       test('Empty single quotes', () {
  
positive.code:       final List<dynamic> slist = slistener.stack.walk();
        expect(slist.length, 1);
        expect(slist[0], 1000000000000);
  
      });
  
      test('18446744073709551615', () {
  
negative.code:       expect(listener.indefinateStart, isTrue);
      });
    });
  }
  