public void Fibonacci_Not_Recursion_15_610Returned()
        {
            // arrange
            int n        = 15;
            int expected = 610;

            // act
            Lesson1App3 app3   = new Lesson1App3();
            int         actual = app3.FibonacciRecursion(n);

            // assert
            Assert.Equal(expected, actual);
        }
        public void FibonacciRecursion_3_2Returned()
        {
            // arrange
            int n        = 3;
            int expected = 2;

            // act
            Lesson1App3 app3   = new Lesson1App3();
            int         actual = app3.FibonacciRecursion(n);

            // assert
            Assert.Equal(expected, actual);
        }