How to mock an Apple built-in class
The MKMapItem class is an Apple built-in class. How do I make sure the openInMaps(launchOptions:) method is being invoked on MKMapItem when I test the displayRo...
Tag: test double
Does stubbing give you an empty feeling – am I stubbing too much?
As you start writing your first few unit tests, this is how you’re going to feel. You’re testing a class, then you need to stub out some other class, and some m...
Clean Swift TDD Part 5 – Complete the VIP Cycle
In my last post, you learned how to test your presenter and format data properly for display. We also introduced a new displayFetchedOrders() method in the view...
Clean Swift TDD Part 3 – Worker
In part 1 and part 2, you tested the ListOrdersViewController and ListOrdersInteractor, respectively. But we left it kind of hanging because we mocked out the O...
Testing View Controller – Part 2
I’ve written a book to teach you how to write unit tests effectively. If you want to make your tests fast so you’ll actually run them and run them often to rece...