(Android Instrumentation Test) Kotlin extensions for launching hilt fragment

build.gradle

android {
    ...
    defaultConfig {
        ...
        testInstrumentationRunner "com.pkg.HiltAppTestRunner"
    }
    ...
}

dependencies {
    ...
    testImplementation testDeps.values()
    androidTestImplementation androidTestDeps.hilt
    androidTestImplementation androidTestDeps.androidx.values()
    androidTestImplementation androidTestDeps.server
    androidTestImplementation androidTestDeps.coroutines

    kaptAndroidTest kaptAndroidTestDeps.hilt
    debugImplementation debugDeps.fragment
}

dependencies.gradle

ext {
    deps = [
            androidx    : [
                    core      : "androidx.core:core-ktx:1.7.0",
                    constraint: "androidx.constraintlayout:constraintlayout:2.1.2",
                    rv        : "androidx.recyclerview:recyclerview:1.2.1",
                    lifecycle : "androidx.lifecycle:lifecycle-runtime-ktx:2.4.0",
                    appcompat : "androidx.appcompat:appcompat:1.4.0",
                    hilt      : "androidx.hilt:hilt-lifecycle-viewmodel:1.0.0-alpha03"
            ],
            material    : "com.google.android.material:material:1.4.0",
            fragment    : "androidx.fragment:fragment-ktx:1.4.0",
            hilt        : "com.google.dagger:hilt-android:2.38.1",
            coroutines  : [
                    core   : "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.6.0",
                    android: "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.6.0"
            ],
            networking  : [
                    retrofit   : "com.squareup.retrofit2:retrofit:2.9.0",
                    gson       : "com.squareup.retrofit2:converter-gson:2.9.0",
                    interceptor: "com.squareup.okhttp3:logging-interceptor:4.9.1"
            ],
            nav         : [
                    fragment: "androidx.navigation:navigation-fragment-ktx:2.3.5",
                    ui      : "androidx.navigation:navigation-ui-ktx:2.3.5"
            ],
            swipeRefresh: "androidx.swiperefreshlayout:swiperefreshlayout:1.1.0",
            glide       : "com.github.bumptech.glide:glide:4.12.0",
            shimmer     : "com.facebook.shimmer:shimmer:0.5.0"

    ]
    compiler = [
            hilt : [
                    hilt  : "androidx.hilt:hilt-compiler:1.0.0",
                    dagger: "com.google.dagger:hilt-android-compiler:2.38.1"
            ],
            glide: "com.github.bumptech.glide:compiler:4.12.0"
    ]
    testDeps = [
            junit     : "junit:junit:4.13.2",
            mockk     : "io.mockk:mockk:1.12.1",
            mockkJvm  : "io.mockk:mockk-agent-jvm:1.12.1",
            coroutines: "org.jetbrains.kotlinx:kotlinx-coroutines-test:1.6.0",
            core      : "androidx.arch.core:core-testing:2.1.0"
    ]
    androidTestDeps = [
            hilt      : "com.google.dagger:hilt-android-testing:2.38.1",
            androidx  : [
                    junit   : "androidx.test.ext:junit:1.1.3",
                    espresso: "androidx.test.espresso:espresso-core:3.4.0",
                    intents : "androidx.test.espresso:espresso-intents:3.4.0",
                    contrib : "androidx.test.espresso:espresso-contrib:3.4.0",
                    nav     : "androidx.navigation:navigation-testing:2.3.5"
            ],
            server    : "com.squareup.okhttp3:mockwebserver:4.9.3",
            coroutines: "org.jetbrains.kotlinx:kotlinx-coroutines-test:1.6.0"

    ]
    kaptAndroidTestDeps = [
            hilt: "com.google.dagger:hilt-android-compiler:2.38.1"
    ]

    debugDeps = [
            fragment: "androidx.fragment:fragment-testing:1.4.0"
    ]
}

FragmentExtensions.kt

inline fun <reified T : Fragment> launchFragmentInHiltContainer(
    fragmentArgs: Bundle? = null,
    @StyleRes themeResId: Int = R.style.Theme_GithubRepo,
    fragmentFactory: FragmentFactory? = null,
    crossinline action: Fragment.() -> Unit = {}
) {
    val startActivityIntent = Intent.makeMainActivity(
        ComponentName(
            ApplicationProvider.getApplicationContext(),
            HiltTestActivity::class.java
        )
    ).putExtra(
        "androidx.fragment.app.testing.FragmentScenario.EmptyFragmentActivity.THEME_EXTRAS_BUNDLE_KEY",
        themeResId
    )

    ActivityScenario.launch<HiltTestActivity>(startActivityIntent).onActivity { activity ->
        fragmentFactory?.let {
            activity.supportFragmentManager.fragmentFactory = it
        }
        val fragment: Fragment = activity.supportFragmentManager.fragmentFactory.instantiate(
            Preconditions.checkNotNull(T::class.java.classLoader),
            T::class.java.name
        )

        fragment.arguments = fragmentArgs
        activity.supportFragmentManager
            .beginTransaction()
            .add(android.R.id.content, fragment, "")
            .commitNow()

        fragment.action()
    }
}

HiltAppTestRunner.kt

class HiltAppTestRunner : AndroidJUnitRunner() {
    override fun newApplication(
        cl: ClassLoader?,
        className: String?,
        context: Context?
    ): Application {
        return super.newApplication(cl, HiltTestApplication::class.java.name, context)
    }

    override fun onCreate(arguments: Bundle?) {
        StrictMode.setThreadPolicy(StrictMode.ThreadPolicy.Builder().permitAll().build())
        super.onCreate(arguments)
    }
}