public void T4()
        {
            // Arrange
            var testConverter = new OptionalDateTimeToDateTimeConverter();

            // Act
            var actual = testConverter.ConvertBack(DateTime.MaxValue, null, null !, InvariantCulture);

            // Assert
            Assert.Equal(null !, actual);
        }
        public void T3()
        {
            // Arrange
            var testConverter = new OptionalDateTimeToDateTimeConverter();

            // Act
            var actual = testConverter.ConvertBack(null, typeof(object), null !, InvariantCulture);

            // Assert
            Assert.IsType <Option.OptionNone <DateTime> >(actual);
        }