Setting up an Android project for testing coroutines
In this section, we will start by looking at how you can update your Android app to make it ready for adding and running tests. Once your project is properly set up, it will be easy to add unit and integration tests for your coroutines.
When creating unit tests on Android, you must have the JUnit 4 testing framework in your project. JUnit is a unit testing framework for Java. It should be automatically included in the app/build.gradle dependencies when creating a new Android project in Android Studio.
If your Android project does not have JUnit 4 yet, you can add it by including the following to your app/build.gradle dependencies:
dependencies {
...
testImplementation ‘junit:junit:4.13.2’
}
This allows you to use the JUnit 4 framework for your unit tests.
To create mock objects for your tests, you can also use mocking libraries. Mockito is the...