TestCoroutinesDispatchersModule.kt

// androidTest/projectPath/TestCoroutinesDispatchersModule.kt file

@TestInstallIn(
    components = [SingletonComponent::class],
    replaces = [CoroutinesDispatchersModule::class]
)
@Module
object TestCoroutinesDispatchersModule {

    @DefaultDispatcher
    @Provides
    fun providesDefaultDispatcher(): CoroutineDispatcher =
        AsyncTask.THREAD_POOL_EXECUTOR.asCoroutineDispatcher()

    @IoDispatcher
    @Provides
    fun providesIoDispatcher(): CoroutineDispatcher =
        AsyncTask.THREAD_POOL_EXECUTOR.asCoroutineDispatcher()

    @MainDispatcher
    @Provides
    fun providesMainDispatcher(): CoroutineDispatcher = Dispatchers.Main
}