public void TestOrderNumAssignment() { var testOrder = new Order(); testOrder.Name = "Smith"; testOrder.State = "OH"; testOrder.TaxRate = 0.10M; testOrder.ProductType = "Carpet"; testOrder.Area = 5M; testOrder.CostPerSquareFoot = 2M; testOrder.LaborCostPerSquareFoot = 1M; testOrder.MaterialCost = 4M; testOrder.LaborCost = 10M; testOrder.Tax = 10M; testOrder.Total = 10M; AddOrder p = new AddOrder(); var list = p.GetTodaysOrders(); int n = p.GetNextOrderNumber(list); Assert.IsTrue(n == 1); }