public void NewMaterialCostUpdatesCorrectly(string newArea, string newProductName)
        {
            OrderRepository   OrderRepo   = new OrderRepository();
            EditOrderManager  EditManager = new EditOrderManager(OrderRepo);
            ProductRepository ProductRepo = new ProductRepository();

            //order product started with this
            EditManager.OrderToEdit.Product                        = new Product();
            EditManager.OrderToEdit.Product.ProductType            = "Carpet";
            EditManager.OrderToEdit.Product.CostPerSquareFoot      = 2.25M;
            EditManager.OrderToEdit.Product.LaborCostPerSquareFoot = 2.10M;
            EditManager.OrderToEdit.Area        = 200M;
            EditManager.OrderToEdit.ProductType = "Carpet";
            EditManager.ValidateArea(newArea);
            EditManager.ValidateProduct(newProductName);

            //this product object will be used to determine test calculations
            Product testProduct      = ProductRepo.ProductList.Find(p => p.ProductType == newProductName);
            decimal testMaterialCost = EditManager.NewArea * testProduct.CostPerSquareFoot;

            EditManager.CalculateNewMaterialCost();
            Assert.AreEqual(EditManager.NewMaterialCost, testMaterialCost);


            //now change it -- how do I do that
            //user updates product
        }
        public static void TaxAndTotalUpdatesCorrectly(string testState)
        {
            OrderRepository   OrderRepo   = new OrderRepository();
            EditOrderManager  EditManager = new EditOrderManager(OrderRepo);
            TaxRateRepository TaxRateRepo = new TaxRateRepository();

            EditManager.OrderToEdit.Product                        = new Product();
            EditManager.OrderToEdit.Product.ProductType            = "Carpet";
            EditManager.OrderToEdit.Product.CostPerSquareFoot      = 2.25M;
            EditManager.OrderToEdit.Product.LaborCostPerSquareFoot = 2.10M;
            EditManager.OrderToEdit.Area        = 200M;
            EditManager.OrderToEdit.ProductType = "Carpet";
            EditManager.OrderToEdit.State       = States.OH;
            EditManager.NewArea = 200M;
            //sets new state
            EditManager.ValidateState(testState);
            //sets Taxrate
            EditManager.CalculateNewTaxRate();
            EditManager.ValidateProduct("");
            EditManager.CalculateNewLaborCost();
            EditManager.CalculateNewMaterialCost();
            EditManager.CalculateNewTax();
            TaxRate testRate    = TaxRateRepo.TaxRateList.Find(x => x.StateAbbreviation.Contains(testState));
            decimal rate        = testRate.Rate;
            decimal expectedTax = (EditManager.NewMaterialCost + EditManager.NewLaborCost) * (rate / 100);

            Assert.AreEqual(expectedTax, EditManager.NewTax);

            EditManager.CalculateNewTotal();

            decimal expectedTotal = EditManager.NewMaterialCost + EditManager.NewLaborCost + expectedTax;

            Assert.AreEqual(expectedTotal, EditManager.NewTotal);


            //what was the old tax, what is the new Tax
        }