public void MapTest1()
        {
            List <int> result = ListFunction.Map(new List <int>()
            {
                -10, 0, 1400
            }, x => x / 5);

            Assert.AreEqual(new List <int>()
            {
                -2, 0, 280
            }, result);
        }
        public void MapTest2()
        {
            List <int> result = ListFunction.Map(new List <int>(), x => x / 5);

            Assert.AreEqual(new List <int>(), result);
        }