Styjun

Android Studio 3.4
kotlin 1.3.0
dagger 2.21

I have a project that has a presentation and data module. And I am trying to create the test component in the data module. I can generate the component for the presentation module. I am using kotlin-kts for the gradle build.

For the presentation moudle I have the following build.gradle.kts

plugins 
 id("com.android.application")
 kotlin("android")
 kotlin("kapt")


android 
 compileSdkVersion(Versions.compileSdkVersion)

 defaultConfig 
 applicationId = "nz.org.westforce.mobileui"
 minSdkVersion(Versions.minSdkVersion)
 targetSdkVersion(Versions.targetSdkVersion)
 versionCode = Versions.versionCode
 versionName = Versions.versionName

 testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
 

 buildTypes 
 getByName("release") 
 isMinifyEnabled = true
 proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro")
 
 


dependencies 
 implementation(Libraries.appCompat)
 implementation(Libraries.kotlinStdlib)
 implementation(Libraries.daggerAndroid)
 implementation(Libraries.daggerSupport)
 kapt(Libraries.daggerCompiler)
 kapt(Libraries.daggerProcessor)

 androidTestImplementation(TestLibraries.runner)
 androidTestImplementation(TestLibraries.espressoCore)

 testImplementation(TestLibraries.junit)
 testImplementation(Libraries.daggerAndroid)
 testImplementation(Libraries.daggerSupport)

 kaptTest(Libraries.daggerCompiler)
 kaptTest(Libraries.daggerProcessor)

 implementation(project(":data"))

For the presentation module I have the following Application:

class WestforceCreditUnionMobileuiApplication
 : Application(), HasActivityInjector 

 @Inject
 lateinit var dispatchingAndroidActivityInjector: DispatchingAndroidInjector<Activity>

 override fun onCreate() 
 super.onCreate()

 DaggerWestforceCreditUnionMobileuiComponent.builder()
 .application(this)
 .build()
 .inject(this)
 

 override fun activityInjector(): AndroidInjector<Activity> =
 dispatchingAndroidActivityInjector

The Component

@Singleton
@Component(modules = [AndroidSupportInjectionModule::class])
interface WestforceCreditUnionMobileuiComponent 
 @Component.Builder
 interface Builder 
 @BindsInstance
 fun application(application: WestforceCreditUnionMobileuiApplication): Builder

 fun build(): WestforceCreditUnionMobileuiComponent
 

 fun inject(application: WestforceCreditUnionMobileuiApplication)

The above is working and the DaggerWestforceCreditUnionMobileuiComponent is generated

Now in my data module I can trying to create a test component but dagger doesn't generate the test component classes.

I have the following test component in java/test/package/di directory

@Singleton
@Component(modules = [TestNetworkModule::class])
interface TestWestforceCeditUnionComponent 
 fun inject(webServicesImpTest: WebServicesImpTest)

And in my test class:

class WebServicesImpTest 

 @Inject
 private lateinit var webServicesImp: WebServicesImp

 @Test
 fun setUp() 
 /* the DaggerTestWestforceCreditUnionComponent is not generated */
 

I haven't specified the modules here as it will inflate the code here too much.

For my build.gradle.kts in the data module:

import org.gradle.kotlin.dsl.implementation

plugins 
 id("com.android.library")
 id("kotlin-android")


android 
 compileSdkVersion(Versions.compileSdkVersion)

 defaultConfig 
 minSdkVersion(Versions.minSdkVersion)
 targetSdkVersion(Versions.targetSdkVersion)
 versionCode = Versions.versionCode
 versionName = Versions.versionName

 testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
 

 buildTypes 
 getByName("release") 
 isMinifyEnabled = true
 proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro")
 
 


dependencies 
 implementation(Libraries.kotlinStdlib)
 implementation(Libraries.appCompat)
 implementation(Libraries.daggerAndroid)
 implementation(Libraries.daggerSupport)
 kapt(Libraries.daggerCompiler)
 kapt(Libraries.daggerProcessor)

 testImplementation(TestLibraries.junit)
 testImplementation(TestLibraries.assertJ)
 testImplementation(TestLibraries.mockitoKotlin)

 testImplementation(Libraries.daggerAndroid)
 testImplementation(Libraries.daggerSupport)
 kaptTest(Libraries.daggerCompiler)
 kaptTest(Libraries.daggerProcessor)

I am using the following dagger.android dependencies:

 const val daggerAndroid = "com.google.dagger:dagger-android:$Versions.daggerAndroidVersion"
 const val daggerCompiler = "com.google.dagger:dagger-compiler:$Versions.daggerAndroidVersion"
 const val daggerProcessor = "com.google.dagger:dagger-android-processor:$Versions.daggerAndroidVersion"
 const val daggerSupport = "com.google.dagger:dagger-android-support:$Versions.daggerAndroidVersion"

I have tried rebuilding the project and trying running the following task compileDebugUnitTestSources

Everything builds successfully,

One think I am thinking about as I am using different android modules, maybe the data module cannot see the WestforceCreditUnionMobileuiApplication in the presentation module.

Many thanks for any suggestions

You forgot to add

kotlin("kapt")

to plugins section in :data module build.gradle.kts.

Gradle then proceeds with errors about missing @Provides for your WebServicesImp. Also you should fix the missing Context provider, in my example I just removed the Context use. This should be added to TestNetworkModule:

@Singleton
@Provides
fun provideRetrofit(okHttpClient: OkHttpClient): Retrofit 
 return Retrofit.Builder()
 .baseUrl("http://www.holidaywebservice.com")
 .client(okHttpClient)
 .addConverterFactory(SimpleXmlConverterFactory.createNonStrict(Persister(AnnotationStrategy())))
 .build()

@Reusable
@Provides
fun provideWebServices(retrofit: Retrofit): WebServices 
 return retrofit.create(WebServices::class.java)


@Reusable
@Provides
fun provideWebServicesImp(webServices : WebServices): WebServicesImp 
 return WebServicesImp(webServices)

After that DaggerTestWestforceCeditUnionComponent was successfully generated.