public void BeforeEach()
{
_productRepo = Substitute.For<IProductRepository>();
_orderFulfillmentService = Substitute.For<IOrderFulfillmentService>();
_customerRepository = Substitute.For<ICustomerRepository>();
_taxRateService = Substitute.For<ITaxRateService>();
_emailService = Substitute.For<IEmailService>();
_subject = new OrderService(_orderFulfillmentService,
_customerRepository,
_taxRateService,
_emailService);
_bestCustomer = new Customer
{
CustomerId = 42,
PostalCode = "12345",
Country = "Merica"
};
_listOfTaxEntries = new List<TaxEntry>
{
new TaxEntry {Description = "High Tax", Rate = (decimal) 0.60},
new TaxEntry {Description = "Low Tax", Rate = (decimal) 0.10}
};
_orderConfirmation = new OrderConfirmation
{
OrderId = 1234,
OrderNumber = "hello"
};
_customerRepository.Get(_bestCustomer.CustomerId.Value).Returns(_bestCustomer);
_taxRateService.GetTaxEntries(_bestCustomer.PostalCode, _bestCustomer.Country).Returns(_listOfTaxEntries);
}
public OrderSummary PlaceOrder(Order order)
{
if (order.OrderItemsAreUnique() == false)
{
throw new OrderItemsAreNotUniqueException();
}
if (ProductsAreInStock(order, _productRepository) == false)
{
throw new OrderItemsAreNotInStockException();
}
OrderConfirmation orderConfirmation = _orderFulfillmentService.Fulfill(order);
IEnumerable <TaxEntry> taxEntries = _taxRateService.GetTaxEntries(_postalCode, _country);
decimal netTotal = order.GetOrderTotal();
decimal orderTotal = netTotal + GetTotalTax(taxEntries);
OrderSummary orderSummary = new OrderSummary
{
OrderId = orderConfirmation.OrderId,
OrderNumber = orderConfirmation.OrderNumber,
CustomerId = orderConfirmation.CustomerId,
OrderItems = order.OrderItems,
NetTotal = netTotal,
Taxes = taxEntries,
Total = orderTotal
};
_emailService.SendOrderConfirmationEmail(orderConfirmation.CustomerId, orderConfirmation.OrderId);
return(orderSummary);
}
public OrderSummary PlaceOrder(Order order)
{
// Check duplicate SKU
if (order.HasNoDuplicateSku() == false)
{
throw new ArgumentException(DuplicateSkuError);
}
// Get customer information
int customerId = order.CustomerId ?? -1;
if (customerId == -1)
{
throw new ArgumentException(NoCustomerIdError);
}
Customer customer = _customerService.Get(customerId);
// Get tax rate
IEnumerable <TaxEntry> tax = _taxService.GetTaxEntries(customer.PostalCode, customer.Country);
decimal totalTax = 0;
foreach (TaxEntry entry in tax)
{
totalTax += entry.Rate;
}
// Check product stock and calculate totals
decimal netTotal = 0;
decimal total = 0;
foreach (OrderItem items in order.OrderItems)
{
if (_productRepo.IsInStock(items.Product.Sku) == false)
{
throw new ArgumentException(NoStockError);
}
netTotal += items.Product.Price * items.Quantity;
}
total = totalTax / 100 * netTotal;
// All checks pass, get confirmation properties
OrderConfirmation confirmation = _fulfillmentService.Fulfill(order);
// Create new summary with required information filled in
OrderSummary summary = new OrderSummary
{
OrderId = confirmation.OrderId,
OrderNumber = confirmation.OrderNumber,
NetTotal = netTotal,
Total = total
};
_emailService.SendOrderConfirmationEmail(customerId, summary.OrderId);
return(summary);
}
private static void SendConfirmationEmail(IEmailService emailService, OrderConfirmation orderConfirmation)
{
emailService.SendOrderConfirmationEmail(orderConfirmation.CustomerId, orderConfirmation.OrderId);
}