public void ShouldNotConvertImagePathWithNullParameter()
        {
            var converter = new ThemedImagePathConverter();
            var result    = converter.Convert(InputPath, null, null, null) as string;

            Assert.IsNotNull(result);
            Assert.AreEqual(result, InputPath);
        }
        public void ShouldConvertImagePathWithBlackParameter()
        {
            string parameter = "Black";
            var    converter = new ThemedImagePathConverter();
            var    result    = converter.Convert(InputPath, null, parameter, null) as string;

            Assert.IsNotNull(result);
            Assert.AreEqual(result, BlackThemePath);
        }
        public void ConvertBackShouldThrow()
        {
            var converter = new ThemedImagePathConverter();

            converter.ConvertBack(null, null, null, null);
        }