public void CalculateRevenueSumTest()
        {
            //arrange
            string ItemName = "Revenue";
            int BatchAmount = 4;

            var stubDao = new StubProductDao();
            var target = new ProductService(stubDao);

            //act
            var actual = target.CalculateSum(ItemName, BatchAmount);

            //expected
            var expected = new List<int>() { 50, 66, 61 };

            //assert
            CollectionAssert.AreEqual(expected, actual);
        }
        public void CalculateRevenueSumTest()
        {
            //arrange
            string ItemName    = "Revenue";
            int    BatchAmount = 4;

            var stubDao = new StubProductDao();
            var target  = new ProductService(stubDao);

            //act
            var actual = target.CalculateSum(ItemName, BatchAmount);

            //expected
            var expected = new List <int>()
            {
                50, 66, 61
            };

            //assert
            CollectionAssert.AreEqual(expected, actual);
        }