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Modern Android 13 Development Cookbook

You're reading from   Modern Android 13 Development Cookbook Over 70 recipes to solve Android development issues and create better apps with Kotlin and Jetpack Compose

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Product type Paperback
Published in Jul 2023
Publisher Packt
ISBN-13 9781803235578
Length 322 pages
Edition 1st Edition
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Author (1):
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Madona S. Wambua Madona S. Wambua
Author Profile Icon Madona S. Wambua
Madona S. Wambua
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Toc

Table of Contents (15) Chapters Close

Preface 1. Chapter 1: Getting Started with Modern Android Development Skills 2. Chapter 2: Creating Screens Using a Declarative UI and Exploring Compose Principles FREE CHAPTER 3. Chapter 3: Handling the UI State in Jetpack Compose and Using Hilt 4. Chapter 4: Navigation in Modern Android Development 5. Chapter 5: Using DataStore to Store Data and Testing 6. Chapter 6: Using the Room Database and Testing 7. Chapter 7: Getting Started with WorkManager 8. Chapter 8: Getting Started with Paging 9. Chapter 9: Building for Large Screens 10. Chapter 10: Implementing Your First Wear OS Using Jetpack Compose 11. Chapter 11: GUI Alerts – What’s New in Menus, Dialog, Toast, Snackbars, and More in Modern Android Development 12. Chapter 12: Android Studio Tips and Tricks to Help You during Development 13. Index 14. Other Books You May Enjoy

Writing tests for navigation

Now that we have created a new screen for our SampleLogin project, we need to fix the broken test and add new tests for the UI package. If you can recall, in Chapter 3, Handling the UI State in Jetpack Compose and Using Hilt, we did unit tests and not UI tests. This means after adding all the ViewModel instances, our UI tests are now broken. In this recipe, we will fix the failing tests and add a navigation test.

Getting ready

In this recipe, you do not need to create any new project; use the already-created project, SampleLogin.

How to do it…

You can apply these concepts to test the bottom navigation bar we created. Hence, we will not be writing tests for the BottomNavigationBarSample project. Open SampleLogin and navigate to the androidTest package. We will add tests here for the new RegisterScreen() a Composable function, and also fix the broken tests:

  1. Let’s open the LoginContentTest class. Now, let’s move the...
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