Hello! I'm facing this error whenever I want to create UI tests with Espresso using Dagger > java...

# dagger

[Joan Colmenero]

Hello! I'm facing this error whenever I want to create UI tests with Espresso using Dagger

java.lang.RuntimeException: android.app.Application does not implement dagger.android.HasAndroidInjector

Any idea, why? It only happens with UI tests, the app runs and everything is injected correctly.

[Jovan]

Do you use some kind of Test Application class?

[wasyl]

You probably need to create custom test runner (AndroidJUnitRunner) and override fun newApplication method to call something like super.newApplication(cl, TestApplication::class.java.name, context)

[wasyl]

And set android.defaultConfig.testInstrumentationRunner = <your custom runner>

[wasyl]

That’s just a quick fyi that it’s usually done, I don’t know if instrumentation tests should use your default class from manifest by default or not

[Joan Colmenero]

@Jovan No I do not, shall I?

[Joan Colmenero]

@wasyl Do you have a sample where I can guide to do it? I get you but not 100%

[fatih]

https://github.com/google/iosched/tree/adssched/mobile/src/androidTest/java/com/google/samples/apps/iosched/tests