anchor.diff:  
       test('NaN single', () {
         output.clear();
  -      final List<int> values = [
  -        0xfa,
  -        0x7f,
  -        0xc0,
  -        0x00,
  -        0x00
  -      ];
  +      final List<int> values = [0xfa, 0x7f, 0xc0, 0x00, 0x00];
         final typed.Uint8Buffer buffer = new typed.Uint8Buffer();
         buffer.addAll(values);
         output.putBytes(buffer);
  
positive.code: 
      test('-Infinity half', () {
        output.clear();
        final List<int> values = [
          0xf9,
          0xfc,
          0x00
        ];
        final typed.Uint8Buffer buffer = new typed.Uint8Buffer();
        buffer.addAll(values);
        output.putBytes(buffer);
  
negative.code:       expect(listener.lastValue, 255);
      });
  
      test('Tag (0)', () {
        output.clear();
        final List<int> values = [
          0xc0,
          0x74,
          0x32,
          0x30,
          0x31,
          0x33,
          0x2d,
          0x30,
          0x33,
          0x2d,
          0x32,
          0x31,
          0x54,
          0x32,
          0x30,
          0x3a,
          0x30,
          0x34,
          0x3a,
          0x30,
          0x30,
          0x5a
        ];
        final typed.Uint8Buffer buffer = new typed.Uint8Buffer();
        buffer.addAll(values);
        output.putBytes(buffer);
        final cbor.Input input = new cbor.Input(output.getData(), output.size());
        final cbor.Decoder decoder =
        new cbor.Decoder.withListener(input, listener);
        decoder.run();
        expect(listener.lastValue, "2013-03-21T20:04:00Z");
      });
  
      test('Tag (1) Int', () {
        output.clear();
        final List<int> values = [0xc1, 0x1a, 0x51, 0x4b, 0x67, 0xb0];
        final typed.Uint8Buffer buffer = new typed.Uint8Buffer();
        buffer.addAll(values);
        output.putBytes(buffer);
        final cbor.Input input = new cbor.Input(output.getData(), output.size());
        final cbor.Decoder decoder =
        new cbor.Decoder.withListener(input, listener);
        decoder.run();
        expect(listener.lastValue, 1363896240);
      });
  
      test('Tag (1) Float', () {
        output.clear();
        final List<int> values = [0xc1, 0xfb, 0x41, 0xd4, 0x52, 0xd9,
        0xec, 0x20, 0x00, 0x00
        ];
        final typed.Uint8Buffer buffer = new typed.Uint8Buffer();
        buffer.addAll(values);
        output.putBytes(buffer);
        final cbor.Input input = new cbor.Input(output.getData(), output.size());
        final cbor.Decoder decoder =
        new cbor.Decoder.withListener(input, listener);
        decoder.run();
        expect(listener.lastValue, 1363896240.5);
      });
    });
  }
  