private void ShouldReplaceMultipleWords()
        {
            var characters = new CharacterReplacement();

            characters.Add("Hello World", "Goodbye Planet");

            var configuration = new SlugityConfig
            {
                TextCase              = TextCase.LowerCase,
                StringSeparator       = '-',
                ReplacementCharacters = characters
            };

            var slugity = new Slugity(configuration);

            string before = "Hello World";
            string after  = "goodbye-planet";

            string result = slugity.GenerateSlug(before);

            result.ShouldBe(after);
        }
        private void ShouldReplaceSeparatorIfSameChar()
        {
            var characters = new CharacterReplacement();

            characters.Add("_", "");

            var configuration = new SlugityConfig
            {
                TextCase              = TextCase.LowerCase,
                StringSeparator       = '_',
                ReplacementCharacters = characters
            };

            var slugity = new Slugity(configuration);

            string before = "Hello_World";
            string after  = "helloworld";

            string result = slugity.GenerateSlug(before);

            result.ShouldBe(after);
        }
        private void ShouldBeAbleToAddThenReplaceWords()
        {
            var characters = new CharacterReplacement();

            characters.Add("Hello", "Goodbye");

            var configuration = new SlugityConfig
            {
                TextCase              = TextCase.LowerCase,
                StringSeparator       = '_',
                ReplacementCharacters = characters
            };

            characters.AddOrReplace("Goodbye", "Hello");

            var slugity = new Slugity(configuration);

            string before = "Hello World";
            string after  = "hello_world";

            string result = slugity.GenerateSlug(before);

            result.ShouldBe(after);
        }
        private void ShouldNotAllowEmptyBeforeValue()
        {
            var characters = new CharacterReplacement();

            Should.Throw <ArgumentException>(() => characters.Add("", "Goodbye"));
        }