markchristopherng

data class MessageData(val welcomeMessage: String)

markchristopherng

val koinModule = module {
    single { MessageData() }
    single<TimeService> { TimeServiceImpl() }
    single<GreetingService> {
        GreetingServiceImpl(get(), get())
    }
}

markchristopherng

class KoinApplication : Application() {

    override fun onCreate() {
        super.onCreate()

        startKoin {
            modules(koinModule)
        }
    }
}

markchristopherng

class MainActivity : AppCompatActivity() {

    private val greetingService by inject<GreetingService>()

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        val greetings = findViewById<TextView>(R.id.greetingsTextView)
        greetings.text = "${greetingService.greetings()}"

markchristopherng

class GreetingServiceMockTest : KoinTest {

    private val greetingService: GreetingService by inject()

    @Test
    fun testGreetingInTheMorning() {
        startKoin { modules(koinModule) }
        declareMock<TimeService> {
            given(this.getHourOfDay()).willReturn(9)
        }

markchristopherng

val kodeinModule = Kodein.Module(name = "appmodule") {
    bind() from singleton { MessageData() }
    bind<TimeService>() with singleton { TimeServiceImpl() }
    bind<GreetingService>() with singleton {
        GreetingServiceImpl(instance(), instance()) }
}

markchristopherng

class KodeinApplication : Application(), KodeinAware {

    override val kodein = Kodein.lazy {
        import(kodeinModule)
    }
}

markchristopherng

class MainActivity : AppCompatActivity(), KodeinAware {

    override val kodein by closestKodein()

    private val greetingService by instance<GreetingService>()

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

markchristopherng

class GreetingServiceTest {

    @Test
    fun testGreetingInTheMorning() {

        val testContainer = Kodein {
            import(kodeinModule)
            bind<TimeService>(overrides = true) with singleton {
                object : TimeService {
                    override fun getHourOfDay(): Int = 9

markchristopherng

@Module
interface DaggerModule {

    @Binds
    fun provideTimeService(impl: TimeServiceImpl): TimeService

    @Binds
    fun provideGreetingSersvice(impl: GreetingServiceImpl): GreetingService
}