public void BanCamTest()
        {
            string wordOne      = "ban";
            string wordTwo      = "cam";
            bool   isPermuation = PermutationValidator.IsValidPermutation(wordOne, wordTwo);

            Assert.IsFalse(isPermuation);
        }
        public void EmptyStringNullTest()
        {
            string wordOne      = "";
            string wordTwo      = null;
            bool   isPermuation = PermutationValidator.IsValidPermutation(wordOne, wordTwo);

            Assert.IsTrue(isPermuation);
        }
        public void CatActTest()
        {
            string wordOne      = "cat";
            string wordTwo      = "act";
            bool   isPermuation = PermutationValidator.IsValidPermutation(wordOne, wordTwo);

            Assert.IsTrue(isPermuation);
        }
        public void CatNullTest()
        {
            string wordOne      = "cat";
            string wordTwo      = null;
            bool   isPermuation = PermutationValidator.IsValidPermutation(wordOne, wordTwo);

            Assert.IsFalse(isPermuation);
        }