public void Delegate_EuclidGCD_minus10_minus14_minus20()
        {
            int firstNumber  = 24;
            int secondNumber = 16;
            int expected     = 8;

            Func <int, int, int> solver = new Func <int, int, int>(FindGCD.FindEuclidGCD);

            int actual = FindGCD.FindGcdByDelegate(firstNumber, secondNumber, solver);

            Assert.AreEqual(expected, actual);
        }