public void Palindrome_SentenceCaseInsensitive_true()
        {
            //Arrange
            Palindrome newPalindrome = new Palindrome("Sit on a potato pan Otis");

            //Act
            //Assert
            Assert.Equal(true, newPalindrome.Palindromic());
        }
        public void Palindrome_MultiLetterWord_true()
        {
            //Arrange
            Palindrome newPalindrome = new Palindrome("racecar");

            //Act
            //Assert
            Assert.Equal(true, newPalindrome.Palindromic());
        }
        public void Palindrome_Sentence_true()
        {
            //Arrange
            Palindrome newPalindrome = new Palindrome("sit on a potato pan otis");

            //Act
            //Assert
            Assert.Equal(true, newPalindrome.Palindromic());
        }
        public void Palindrome_OneLetterWord_true()
        {
            //Arrange
            Palindrome newPalindrome = new Palindrome("a");

            //Act
            //Assert
            Assert.Equal(true, newPalindrome.Palindromic());
        }