implement testing and create a simple test for Userlist

app/build.gradle

@@ -37,6 +37,10 @@ android {
         targetCompatibility JavaVersion.VERSION_1_8
     }
 
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_1_8.toString()
+    }
+
     testOptions {
         unitTests.returnDefaultValues = true
     }

app/src/main/java/com/hako/friendlists/MainApplication.kt

@@ -1,10 +1,8 @@
 package com.hako.friendlists
 
 import android.app.Application
-import com.hako.albumlist.di.albumListModules
 import com.hako.userlist.di.userlistModules
 import com.hako.friendlists.di.appModules
-import com.hako.photolist.di.photoListModules
 import org.koin.android.ext.koin.androidContext
 import org.koin.core.context.startKoin
 import timber.log.Timber
@@ -28,9 +26,7 @@ class MainApplication : Application() {
             modules(
                 listOf(
                     appModules,
-                    userlistModules,
-                    albumListModules,
-                    photoListModules
+                    userlistModules
                 )
             )
         }

app/src/main/java/com/hako/friendlists/viewmodel/NavigationViewmodel.kt

@@ -4,19 +4,35 @@ import android.os.Bundle
 import androidx.annotation.IdRes
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
+import com.hako.albumlist.di.albumListModules
 import com.hako.albumlist.feature.ALBUMLIST_FRAGMENT_BUNDLE_USER_ID
 import com.hako.albumlist.navigation.AlbumlistNavigation
 import com.hako.base.extensions.buildNavigation
 import com.hako.base.navigation.NavigationEvent
 import com.hako.friendlists.R
+import com.hako.photolist.di.photoListModules
 import com.hako.photolist.feature.PHOTOLIST_FRAGMENT_BUNDLE_ALBUM_ID
 import com.hako.userlist.navigation.UserlistNavigation
+import org.koin.core.context.loadKoinModules
 
 // This sets the fragment title, it's referenced in every navigation
 const val FRAGMENT_TITLE = "actionTitle"
 
 class NavigationViewmodel : ViewModel() {
 
+    // Load koin modules dynamically ;)
+    private val albums by lazy {
+        loadKoinModules(albumListModules)
+    }
+
+    private val photos by lazy {
+        loadKoinModules(photoListModules)
+    }
+
+    private fun injectAlbums() = albums
+
+    private fun injectPhotos() = photos
+
     val navigate = MutableLiveData<Pair<@IdRes Int, Bundle>>()
 
     fun onNavigationEvent(event: NavigationEvent) {
@@ -28,6 +44,8 @@ class NavigationViewmodel : ViewModel() {
     }
 
     private fun handleUserlistNavigation(event: UserlistNavigation) {
+        injectAlbums()
+
         when (event) {
             is UserlistNavigation.ClickedOnUser -> navigate.postValue(
                 buildNavigation(R.id.action_userlistFragment_to_albumlistFragment, Bundle().apply {
@@ -42,6 +60,8 @@ class NavigationViewmodel : ViewModel() {
     }
 
     private fun handleAlbumlistNavigation(event: AlbumlistNavigation) {
+        injectPhotos()
+
         when (event) {
             is AlbumlistNavigation.ClickedOnAlbum -> navigate.postValue(
                 buildNavigation(R.id.action_albumlistFragment_to_photolistFragment, Bundle().apply {