Evaluate filter automatically also on Android test class, not just on test method.

[jan-varecka-signageos-io]

Because @CustomFilter is not evaluated on test classes, now I need to apply my annotation with @CustomFilter to every test method, or I have to configure instrumentation runner in build.gradle.kts (or in my custom runner). All these solutions are kind of painful in large multimodule project.

android {
    defaultConfig {
        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
        testInstrumentationRunnerArguments["filter"] = listOf(
            "mypackage.MyCustomFilter",
        ).joinToString(separator = ",")
    }
}

or

class MyAndroidJUnitRunner : AndroidJUnitRunner() {

    override fun onCreate(arguments: Bundle) {
        arguments.putString("filter", MyCustomFilter::class.java.name)
        super.onCreate(arguments)
    }
}

[brettchabot]

Thanks for the contribution! Can you add a unit test here runner/android_junit_runner/javatests/androidx/test/internal/runner/TestRequestBuilderTest.java