public static void ConfirmNoRepeatedWords()
        {
            Repeatedword rw        = new Repeatedword();
            Hashtable    hashtable = new Hashtable();
            string       words     = "Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sunday Ice Cream";
            string       actual    = rw.FindRepeatedWord(words);
            string       expected  = "null";

            Assert.Equal(expected, actual);
        }
        public static void ConfirmRepeatedWords()
        {
            Repeatedword rw        = new Repeatedword();
            Hashtable    hashtable = new Hashtable();
            string       words     = "She sells sea shells by the sea shore";
            string       actual    = rw.FindRepeatedWord(words);
            string       expected  = "sea";

            Assert.Equal(expected, actual);
        }