elmah.ir-post120-code6.cs

[Test]
public void WhenAValidCustomerPlacesAValidOrderAnOrderShouldBePlaced()
{
  //Arrange
  var shoppingCart = new ShoppingCart();
  shoppingCart.Items.Add(new ShoppingCartItem { ItemId = Guid.NewGuid(), Quantity = 1 });
  var customerId = Guid.NewGuid();
  var expectedOrderId = Guid.NewGuid();
  var customerToReturn = new Customer { Id = customerId, FirstName = "Fred", LastName = "Flinstone" };


  Mock.Arrange(() => _orderDataService.Save(Arg.IsAny<Order>()))
    .Returns(expectedOrderId)
    .OccursOnce();


  Mock.Arrange(() => _customerService.GetCustomer(customerId))
    .Returns(customerToReturn)
    .OccursOnce();


 //Act
  var result = _orderService.PlaceOrder(customerId, shoppingCart);


  //Assert
  Assert.AreEqual(expectedOrderId, result);
  Mock.Assert(_orderDataService);
}