Summary

Testing SwiftUI code works a bit differently from testing UIKit code. One reason for this is that SwiftUI itself works completely differently. In addition, Apple doesn't provide a testing framework for SwiftUI code because they believe that user interface code should be tested with UITest.

I don't think that's true. UITest solve a different problem. I believe you should have access to both kinds of tests, and you should choose the right tool for the problem at hand.

Fortunately, with ViewInspector we have a powerful third-party solution that fills this gap. In this chapter, we added it as a SwiftUI package to the unit test target. We used the package to write unit tests for SwiftUI code and build an input view for to-do items following test-driven development.

This way, we learned how to add SwiftUI packages to test targets and how to use this specific SwiftUI package to write tests for things that aren't easily testable without it.

In the next...