The Auto Mocking Container
Several months ago the guys from Eleutian released the Auto Mocking Container, a combination of Rhino Mocks and Windsor container. I looked at it at the time, and I liked it, but I didn't really get a chance to work with it until recently.
You can see how a non trivial controller may look like on the left. It has a fair number of collaborators, for data access, logging, notifications, etc.
This approach make building the controller very easy:
public void DisplayOrdersForApproval()
{
if (AuthorizationService.AllowedToApproveOrders() == false)
AccessForbidden();
PropertyBag["orders"] = Orders.FindAll(
Where.Order.Status == OrderStatus.WaitingForApproval &&
Where.Order.Department == CurrentUser.Department
);
}
public void RejectOrder(Order order)
{
NotificationService.OrderRejected(order);
Logger.Info("User {0} had rejected order {1}.",
CurrentUser.Name, order.Id);
order.Stutus = OrderStatus.Rejected;
Orders.Save(order);
}
public void ShipOrder(Order order)
{
NotificationService.StartedOrderShipping(order);
Logger.Info("User {0} had approved order {1}.",
CurrentUser.Name, order.Id);
ShippingService.Ship(order);
}
The controller is merely coordinating the work of services in the application, which is what I think it should do. But how do I test such a thing? Setting up seven collaborators per tests is a PITA, and it gets worse if you consider additional dependencies that may be required by the base class.
Enter the Auto Mocking Container, which makes all of this a real pleasure, check this out:
[Test]
public void RejectingAnOrderWillSendNotification()
{
AutoMockingContainer container = new AutoMockingContainer(Mocks);
OrderApprovalController controller = container.Create<OrderApprovalController>();
Order order = new Order();
INotificationService mockedNotificationService = container.Resolve<INotificationService>();
using (Mocks.Replay())
{
mockedNotificationService.OrderRejected(order);
}
using (Mocks.Playback())
{
controller.RejectOrder(order);
}
}There are a lot of interesting options on the Auto Mocking Container that I suggest that you will check out. I really like it.