How to inject repository dagger dependency instance in my integration tests?-CodePudding

I'm trying to access my repository dependency from my integration tests but I can't seem to find a way to do so.

@Singleton
@Component(
    modules = [
        RepositoryModule::class,
    ]
)
interface TestAppComponent : AppComponent {

    @Component.Builder
    interface Builder : AppComponent.Builder {

        override fun build(): TestAppComponent
    }
}

The repository module

@Module
interface RepositoryModule {

    @Binds
    fun repository(repo: Repository): IRepository
}

And in my integration test :

class AppIntegTests {

    @Inject
    lateinit var repository: IRepository

    @BeforeTest
    fun setup() {
        repository.deleteAll()
    }

    @Test
    fun testRoot() {
        withTestApplication(config) {
            handleRequest { method = HttpMethod.Get; uri = "/users" }.apply {
               assertEquals(HttpStatusCode.OK, response.status())
            }
            // tests....
        }
    }
}

When doing this, I get lateinit property has not been initialized on my injected repository. Is what I'm trying to do achievable with Dagger?

CodePudding user response：

You have to pass reference of AppIntegTests class to dagger graph in order to initialize lateinit property by dagger

Add inject function to TestAppComponent

interface TestAppComponent  {

    fun inject(test: AppIntegTests)

    @Component.Builder
    interface Builder {
        fun build(): TestAppComponent
    }
}

call this method from setUp function of AppIntegTests

class AppIntegTests {

    @Inject
    lateinit var repository: IRepository

    @Before
    fun setup() {
        val testAppComponent = DaggerTestAppComponent.builder().build()
        testAppComponent.inject(this)

        repository.deleteAll()
    }