public void ReadDateTimeNullTest() { byte[] bytes = "7E0000000000000000000000000000007E".ToHexBytes(); JT808MessagePackReader jT808MessagePackReader = new JT808MessagePackReader(bytes); Assert.Equal(JT808Package.BeginFlag, jT808MessagePackReader.ReadStart()); Assert.Null(jT808MessagePackReader.ReadDateTimeNull4()); Assert.Null(jT808MessagePackReader.ReadDateTimeNull5()); Assert.Null(jT808MessagePackReader.ReadDateTimeNull6()); Assert.Equal(JT808Package.EndFlag, jT808MessagePackReader.ReadEnd()); }