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Test-Driven iOS Development with Swift

You're reading from   Test-Driven iOS Development with Swift Write maintainable, flexible, and extensible code using the power of TDD with Swift 5.5

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Product type Paperback
Published in Apr 2022
Publisher Packt
ISBN-13 9781803232485
Length 280 pages
Edition 4th Edition
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Author (1):
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Dr. Dominik Hauser Dr. Dominik Hauser
Author Profile Icon Dr. Dominik Hauser
Dr. Dominik Hauser
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Table of Contents (17) Chapters Close

Preface 1. Section 1 –The Basics of Test-Driven iOS Development
2. Chapter 1: Your First Unit Tests FREE CHAPTER 3. Chapter 2: Understanding Test-Driven Development 4. Chapter 3: Test-Driven Development in Xcode 5. Section 2 –The Data Model
6. Chapter 4: The App We Are Going to Build 7. Chapter 5: Building a Structure for ToDo Items 8. Chapter 6: Testing, Loading, and Saving Data 9. Section 3 –Views and View Controllers
10. Chapter 7: Building a Table View Controller for the To-Do Items 11. Chapter 8: Building a Simple Detail View 12. Chapter 9: Test-Driven Input View in SwiftUI 13. Section 4 –Networking and Navigation
14. Chapter 10: Testing Networking Code 15. Chapter 11: Easy Navigation with Coordinators 16. Other Books You May Enjoy

Navigating to a modal view

Normally, testing the presentation of a modal view controller is quite complicated. If you search how to do that on the internet, you will find that the common solutions work by swizzling the present(_:animated:completion:) method defined in the UIViewController class. Swizzling is quite complicated, and I will not show in this book how this is done.

But, because we are using the coordinator pattern for the navigation in our app, we can test the presentation without the need to swizzle any method. Still, you should look up how to swizzle methods because sometimes you don't have the option to use the coordinator pattern; for example, when there is already all the navigation code implemented and you are not allowed to change it.

Follow these steps to implement the presentation of the input view when the user chooses to add a new to-do item:

  1. The app needs a button in the user interface that the user can tap to add a to-do item. When the user...
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