Summary

In this chapter, we looked at important terms and techniques regarding testing. In the first main section, we set up the infrastructure, wrote and ran a simple unit test locally on the development machine, and then turned to Compose specifics. I introduced you to createComposeRule() and createAndroidComposeRule().

Next, we looked at how composable functions are found in a Compose hierarchy, and why making your app accessible also helps in writing better tests. You also learned about actions and assertions. Finally, we added custom entries to the semantics tree.

The final main section explained how to debug a Compose app. We revisited the semantics tree, and I showed you how to take advantage of InspectorInfo and InspectorValueInfo to debug custom modifiers.

Chapter 11, Conclusion and Next Steps, concludes this book. We look in the crystal ball to see what future versions of Jetpack Compose may add. For example, we preview Material 3 for Compose, which brings Material...