public void Save(Order order)
{
if (order.Total <= 0)
throw new Exception("Total must be greater than zero");
discountDb.Save(order);
}
public void CalculateTotal_WithoutCoupon_ReturnLineItemTotal()
{
Order order = new Order { ItemTotal = 100 };
OrderServices orderServices = new OrderServices(new DataAccess());
var total = orderServices.CalculateTotal(order);
Assert.AreEqual(100, total);
}
public void CalculateTotal_WithCoupon_ReturnLineItemWithDiscount()
{
Order order = new Order { Coupon = "christmas", ItemTotal = 100 };
OrderServices orderServices = new OrderServices(new DataAccess());
var total = orderServices.CalculateTotal(order);
Assert.AreEqual(90, total);
}
public void Save_ValidOrder_TheOrderIsPersisted()
{
Order order = new Order { Id = 1, ItemTotal = 100, Total = 110 };
var dataAccess = new SimpleDataAccess();
OrderServices orderProcessor = new OrderServices(dataAccess);
orderProcessor.Save(order);
Assert.AreEqual(order, dataAccess.OrderSaved);
}
public void Save_ValidOrder_TheOrderIsPersisted()
{
Order order = new Order { Id = 1, ItemTotal = 100, Total = 110 };
var dataAccess = new Mock<IDataAccess>();
OrderServices orderProcessor = new OrderServices(dataAccess.Object);
orderProcessor.Save(order);
dataAccess.Verify(x => x.SaveOrder(order));
}
public void Save_ValidOrder_TheOrderIsPersisted()
{
Order order = new Order { Id = 1, ItemTotal = 100, Total = 110 };
OrderServices orderProcessor = new OrderServices(new DataAccess());
orderProcessor.Save(order);
Order orderFromDb = orderProcessor.GetOrder(order.Id);
Assert.IsNotNull(orderFromDb);
}
public void CalculateTotal_WithCoupon_ReturnLineItemWithDiscount()
{
Order order = new Order { Coupon = "christmas", ItemTotal = 100 };
var dataAccess = new SimpleDataAccess();
dataAccess.CouponPercentage = 10;
OrderServices orderServices = new OrderServices(dataAccess);
var total = orderServices.CalculateTotal(order);
Assert.AreEqual(90, total);
}
public void CalculateTotal_WithCoupon_ReturnLineItemWithDiscount()
{
Order order = new Order { Coupon = "christmas", ItemTotal = 100 };
var dataAccess = new Mock<IDataAccess>();
dataAccess.Setup(x => x.GetPromotionalDiscount(order.Coupon)).Returns(10);
OrderServices orderServices = new OrderServices(dataAccess.Object);
var total = orderServices.CalculateTotal(order);
Assert.AreEqual(90, total);
}
public decimal CalculateTotal(Order order)
{
decimal itemTotal = order.ItemTotal;
decimal discountPercentage = 0;
if (!string.IsNullOrEmpty(order.Coupon))
{
discountPercentage = this.dataAccess.GetPromotionalDiscount(order.Coupon);
}
return itemTotal - itemTotal * discountPercentage / 100;
}
public void Save(Order order)
{
using (var conn = new SqlConnection(ConfigurationManager.ConnectionStrings["DB"].ConnectionString))
{
using (var command = new SqlCommand("Insert into Orders values(@Id,@Total)", conn))
{
command.Parameters.AddWithValue("Id", order.Id);
command.Parameters.AddWithValue("Total", order.Total);
conn.Open();
int rows = command.ExecuteNonQuery();
if (rows == 0)
{
throw new Exception("Operation Failed");
}
}
}
}
public void SaveOrder(Order order)
{
var orders = new List<Order>();
using (TextReader textReader = new StreamReader(dataDirectory + "/orders.txt"))
{
var csvReader = new CsvReader(textReader);
orders = csvReader.GetRecords<Order>().ToList();
}
var orderSaved = orders.SingleOrDefault(x => x.Id == order.Id);
if (orderSaved != null)
throw new Exception("Primary Constraint Exception: another object already exists with same Id");
orders.Add(order);
using (TextWriter textWriter = new StreamWriter(dataDirectory + "/orders.txt"))
{
var csvWriter = new CsvWriter(textWriter);
csvWriter.WriteRecords(orders);
}
}
public void SaveOrder(Order order)
{
OrderSaved = order;
}
private bool IsValid(Order order)
{
return order.Id > 0 && order.ItemTotal > 0 && order.Total > 0;
}
public void Save(Order order)
{
if (!IsValid(order))
throw new Exception("Invalid Order");
dataAccess.SaveOrder(order);
}