How can I test code that uses Hilt dependencies?

Testing code that uses Hilt dependencies in Android is a crucial part of ensuring your app’s functionality and stability. Hilt provides mechanisms to facilitate testing, and you can use various testing frameworks like JUnit, Espresso, and Mockito. Here’s a step-by-step guide on how to test code that relies on Hilt dependencies:

1. Set Up Hilt for Testing:

Ensure that you have set up Hilt for testing in your project. In your build.gradle file, make sure you include the necessary dependencies

androidTestImplementation "com.google.dagger:hilt-android-testing:$hilt_version"
kaptAndroidTest "com.google.dagger:hilt-android-compiler:$hilt_version"

2. Create a Custom Test Application:

Create a custom Application class for your tests. This class should be annotated with @HiltAndroidTest and extend Application. This allows you to specify a custom Hilt component for your tests.

@HiltAndroidTest
class MyTestApplication : Application() {
    // Add any custom configuration for testing if needed
}

3. Use Hilt in Your Test Classes:

In your test classes written in Kotlin, you can use Hilt annotations to specify which Hilt component to use for injection. For example, you can use @HiltAndroidTest to…