public void Get_Positive()
        {
            FullSeriesController controller = new FullSeriesController();

            var actural = controller.Get(1500).ElementAt(1499);

            Assert.AreEqual(1500, actural);
        }
        public void Get_Negative_Zero()
        {
            FullSeriesController controller = new FullSeriesController();

            var actural = controller.Get(-1).ElementAt(0);

            Assert.AreEqual(1, actural);
        }