public void IsPalendromic_ReturnsExpectedResult(string characters, bool expectedResult)
        {
            bool actualResult = MathyHelper.IsPalendromic(characters);

            Assert.AreEqual(expectedResult, actualResult);
        }
        public void IsDivisibleFrom1to20_ReturnsExpectedResult(int number, bool expectedResult)
        {
            bool actualResult = MathyHelper.IsDivisibleFrom1To20(number);

            Assert.AreEqual(expectedResult, actualResult);
        }
        public void IsPrime_ReturnsExpectedResult(int number, bool expectedResult)
        {
            bool actualResult = MathyHelper.IsPrime(number);

            Assert.AreEqual(expectedResult, actualResult);
        }