For #1710: Create scaffolding for Robolectric tests (#2282)

app/build.gradle

@@ -73,6 +73,7 @@ android {
 
     testOptions {
         execution 'ANDROIDX_TEST_ORCHESTRATOR'
+        unitTests.includeAndroidResources = true
     }
 
     flavorDimensions "abi"
@@ -122,7 +123,7 @@ android.applicationVariants.all { variant ->
     if (hasTest) {
         apply plugin: 'kotlin-allopen'
         allOpen {
-            annotation("org.mozilla.fenix.test.Mockable")
+            annotation("org.mozilla.fenix.test.OpenClass")
         }
     }
 
@@ -373,9 +374,11 @@ dependencies {
         exclude group: 'com.android.support', module: 'support-annotations'
     }
 
-    testImplementation Deps.junit_jupiter_api
-    testImplementation Deps.junit_jupiter_params
-    testImplementation Deps.junit_jupiter_engine
+    testImplementation Deps.junit
+    testImplementation Deps.robolectric
+    debugImplementation Deps.fragment_testing
+    testImplementation Deps.megazord_forUnitTests
+    testImplementation Deps.places_forUnitTests
 
     testImplementation Deps.mockito_core
     androidTestImplementation Deps.mockito_android

app/src/main/java/org/mozilla/fenix/FenixApplication.kt

@@ -28,16 +28,20 @@ import org.mozilla.fenix.utils.Settings
 import java.io.File
 
 @SuppressLint("Registered")
+@Suppress("TooManyFunctions")
 open class FenixApplication : Application() {
     lateinit var fretboard: Fretboard
     lateinit var experimentLoader: Deferred<Boolean>
     var experimentLoaderComplete: Boolean = false
 
-    val components by lazy { Components(this) }
+    open val components by lazy { Components(this) }
 
     override fun onCreate() {
         super.onCreate()
+        setupApplication()
+    }
 
+    open fun setupApplication() {
         // loadExperiments does things that run in parallel with the rest of setup.
         // Call the function as early as possible so there's maximum overlap.
         experimentLoader = loadExperiments()

app/src/main/java/org/mozilla/fenix/components/Analytics.kt

@@ -19,6 +19,7 @@ import org.mozilla.fenix.components.metrics.AdjustMetricsService
 import org.mozilla.fenix.components.metrics.GleanMetricsService
 import org.mozilla.fenix.components.metrics.LeanplumMetricsService
 import org.mozilla.fenix.components.metrics.MetricController
+import org.mozilla.fenix.test.Mockable
 import org.mozilla.fenix.utils.Settings
 import org.mozilla.geckoview.BuildConfig.MOZ_APP_BUILDID
 import org.mozilla.geckoview.BuildConfig.MOZ_APP_VERSION
@@ -26,6 +27,7 @@ import org.mozilla.geckoview.BuildConfig.MOZ_APP_VERSION
 /**
  * Component group for all functionality related to analytics e.g. crash reporting and telemetry.
  */
+@Mockable
 class Analytics(
     private val context: Context
 ) {

app/src/main/java/org/mozilla/fenix/components/BackgroundServices.kt

@@ -14,11 +14,13 @@ import mozilla.components.feature.sync.BackgroundSyncManager
 import mozilla.components.feature.sync.GlobalSyncableStoreProvider
 import mozilla.components.service.fxa.Config
 import mozilla.components.service.fxa.FxaAccountManager
+import org.mozilla.fenix.test.Mockable
 
 /**
  * Component group for background services. These are the components that need to be accessed from within a
  * background worker.
  */
+@Mockable
 class BackgroundServices(
     context: Context,
     historyStorage: PlacesHistoryStorage,

app/src/main/java/org/mozilla/fenix/components/Components.kt

@@ -5,10 +5,12 @@
 package org.mozilla.fenix.components
 
 import android.content.Context
+import org.mozilla.fenix.test.Mockable
 
 /**
  * Provides access to all components.
  */
+@Mockable
 class Components(private val context: Context) {
     val backgroundServices by lazy { BackgroundServices(context, core.historyStorage, core.bookmarksStorage) }
     val services by lazy { Services(backgroundServices.accountManager, useCases.tabsUseCases) }

app/src/main/java/org/mozilla/fenix/components/Core.kt

@@ -25,6 +25,7 @@ import mozilla.components.concept.fetch.Client
 import mozilla.components.feature.session.HistoryDelegate
 import mozilla.components.lib.crash.handler.CrashHandlerService
 import org.mozilla.fenix.AppRequestInterceptor
+import org.mozilla.fenix.test.Mockable
 import org.mozilla.fenix.utils.Settings
 import org.mozilla.geckoview.GeckoRuntime
 import org.mozilla.geckoview.GeckoRuntimeSettings
@@ -33,9 +34,10 @@ import java.util.concurrent.TimeUnit
 /**
  * Component group for all core browser functionality.
  */
+@Mockable
 class Core(private val context: Context) {
 
-    private val runtime by lazy {
+    protected val runtime by lazy {
         val builder = GeckoRuntimeSettings.Builder()
 
         testConfig?.let {

app/src/main/java/org/mozilla/fenix/components/FenixSnackbar.kt

@@ -5,18 +5,20 @@ file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 package org.mozilla.fenix.components
 
 import android.util.TypedValue
+import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import com.google.android.material.snackbar.BaseTransientBottomBar
-import android.view.LayoutInflater
 import android.widget.FrameLayout
 import androidx.coordinatorlayout.widget.CoordinatorLayout
 import androidx.core.widget.TextViewCompat
+import com.google.android.material.snackbar.BaseTransientBottomBar
 import com.google.android.material.snackbar.Snackbar
 import kotlinx.android.synthetic.main.fenix_snackbar.view.*
 import org.mozilla.fenix.R
 import org.mozilla.fenix.ext.increaseTapArea
+import org.mozilla.fenix.test.Mockable
 
+@Mockable
 class FenixSnackbar private constructor(
     parent: ViewGroup,
     content: View,

app/src/main/java/org/mozilla/fenix/components/FindInPageIntegration.kt

@@ -16,7 +16,9 @@ import mozilla.components.feature.findinpage.view.FindInPageBar
 import mozilla.components.feature.findinpage.view.FindInPageView
 import mozilla.components.support.base.feature.BackHandler
 import mozilla.components.support.base.feature.LifecycleAwareFeature
+import org.mozilla.fenix.test.Mockable
 
+@Mockable
 class FindInPageIntegration(
     private val sessionManager: SessionManager,
     private val view: FindInPageView,

app/src/main/java/org/mozilla/fenix/components/Search.kt

@@ -8,11 +8,13 @@ import android.content.Context
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.launch
 import mozilla.components.browser.search.SearchEngineManager
+import org.mozilla.fenix.test.Mockable
 import org.mozilla.fenix.utils.Settings
 
 /**
  * Component group for all search engine integration related functionality.
  */
+@Mockable
 class Search(private val context: Context) {
 
     /**

app/src/main/java/org/mozilla/fenix/components/Services.kt

@@ -7,10 +7,12 @@ package org.mozilla.fenix.components
 import mozilla.components.feature.accounts.FirefoxAccountsAuthFeature
 import mozilla.components.feature.tabs.TabsUseCases
 import mozilla.components.service.fxa.FxaAccountManager
+import org.mozilla.fenix.test.Mockable
 
 /**
  * Component group which encapsulates foreground-friendly services.
  */
+@Mockable
 class Services(
     private val accountManager: FxaAccountManager,
     private val tabsUseCases: TabsUseCases

app/src/main/java/org/mozilla/fenix/components/Storage.kt

@@ -9,7 +9,9 @@ import androidx.paging.DataSource
 import mozilla.components.feature.sitepermissions.SitePermissions
 import mozilla.components.feature.sitepermissions.SitePermissions.Status
 import mozilla.components.feature.sitepermissions.SitePermissionsStorage
+import org.mozilla.fenix.test.Mockable
 
+@Mockable
 class Storage(private val context: Context) {
 
     private val permissionsStorage by lazy {

app/src/main/java/org/mozilla/fenix/components/UseCases.kt

@@ -10,11 +10,13 @@ import mozilla.components.browser.session.SessionManager
 import mozilla.components.feature.search.SearchUseCases
 import mozilla.components.feature.session.SessionUseCases
 import mozilla.components.feature.tabs.TabsUseCases
+import org.mozilla.fenix.test.Mockable
 
 /**
  * Component group for all use cases. Use cases are provided by feature
  * modules and can be triggered by UI interactions.
  */
+@Mockable
 class UseCases(
     private val context: Context,
     private val sessionManager: SessionManager,

app/src/main/java/org/mozilla/fenix/components/Utilities.kt

@@ -11,10 +11,12 @@ import mozilla.components.feature.intent.IntentProcessor
 import mozilla.components.feature.search.SearchUseCases
 import mozilla.components.feature.session.SessionUseCases
 import org.mozilla.fenix.ext.components
+import org.mozilla.fenix.test.Mockable
 
 /**
  * Component group for miscellaneous components.
  */
+@Mockable
 class Utilities(
     private val context: Context,
     private val sessionManager: SessionManager,

app/src/main/java/org/mozilla/fenix/library/bookmarks/BookmarkFragment.kt

@@ -58,8 +58,8 @@ class BookmarkFragment : Fragment(), CoroutineScope, BackHandler, AccountObserve
     private lateinit var job: Job
     private lateinit var bookmarkComponent: BookmarkComponent
     private lateinit var signInComponent: SignInComponent
-    private var currentRoot: BookmarkNode? = null
-    private val navigation by lazy { Navigation.findNavController(requireActivity(), R.id.container) }
+    var currentRoot: BookmarkNode? = null
+    private val navigation by lazy { Navigation.findNavController(requireView()) }
     private val onDestinationChangedListener =
         NavController.OnDestinationChangedListener { _, destination, args ->
             if (destination.id != R.id.bookmarkFragment ||
@@ -67,6 +67,7 @@ class BookmarkFragment : Fragment(), CoroutineScope, BackHandler, AccountObserve
             )
                 getManagedEmitter<BookmarkChange>().onNext(BookmarkChange.ClearSelection)
         }
+    lateinit var initialJob: Job
 
     override val coroutineContext: CoroutineContext
         get() = Main + job
@@ -81,19 +82,23 @@ class BookmarkFragment : Fragment(), CoroutineScope, BackHandler, AccountObserve
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         job = Job()
-        (activity as AppCompatActivity).title = getString(R.string.library_bookmarks)
+        activity?.title = getString(R.string.library_bookmarks)
         setHasOptionsMenu(true)
     }
 
     override fun onResume() {
         super.onResume()
-        (activity as AppCompatActivity).supportActionBar?.show()
+        (activity as? AppCompatActivity)?.supportActionBar?.show()
         checkIfSignedIn()
 
         navigation.addOnDestinationChangedListener(onDestinationChangedListener)
         val currentGuid = BookmarkFragmentArgs.fromBundle(arguments!!).currentRoot.ifEmpty { BookmarkRoot.Mobile.id }
 
-        launch(IO) {
+        initialJob = loadInitialBookmarkFolder(currentGuid)
+    }
+
+    private fun loadInitialBookmarkFolder(currentGuid: String): Job {
+        return launch(IO) {
             currentRoot = requireComponents.core.bookmarksStorage.getTree(currentGuid) as BookmarkNode
 
             launch(Main) {
@@ -322,7 +327,8 @@ class BookmarkFragment : Fragment(), CoroutineScope, BackHandler, AccountObserve
     override fun onProfileUpdated(profile: Profile) {
     }
 
-    private fun getSelectedBookmarks() = (bookmarkComponent.uiView as BookmarkUIView).getSelected()
+    fun getBookmarks() = (bookmarkComponent.uiView as BookmarkUIView).tree?.children
+    fun getSelectedBookmarks() = (bookmarkComponent.uiView as BookmarkUIView).getSelected()
 
     private suspend fun deleteSelectedBookmarks(
         selected: Set<BookmarkNode> = getSelectedBookmarks(),

app/src/main/java/org/mozilla/fenix/library/bookmarks/BookmarkUIView.kt

@@ -92,23 +92,24 @@ class BookmarkUIView(
     fun getSelected(): Set<BookmarkNode> = bookmarkAdapter.selected
 
     private fun setToolbarColors(foreground: Int, background: Int) {
-        val toolbar = (activity as AppCompatActivity).findViewById<Toolbar>(R.id.navigationToolbar)
+        val toolbar = activity?.findViewById<Toolbar>(R.id.navigationToolbar)
         val colorFilter = PorterDuffColorFilter(
             ContextCompat.getColor(context, foreground), PorterDuff.Mode.SRC_IN
         )
-        toolbar.setBackgroundColor(ContextCompat.getColor(context, background))
-        toolbar.setTitleTextColor(ContextCompat.getColor(context, foreground))
-
-        themeToolbar(
-            toolbar, foreground,
-            background, colorFilter
-        )
+        toolbar?.run {
+            setBackgroundColor(ContextCompat.getColor(context, background))
+            setTitleTextColor(ContextCompat.getColor(context, foreground))
+            themeToolbar(
+                toolbar, foreground,
+                background, colorFilter
+            )
+        }
     }
 
     private fun setUIForSelectingMode(
         mode: BookmarkState.Mode.Selecting
     ) {
-        (activity as? AppCompatActivity)?.title =
+        activity?.title =
             context.getString(R.string.bookmarks_multi_select_title, mode.selectedItems.size)
         setToolbarColors(
             R.color.white_color,

app/src/test/java/org/mozilla/fenix/TestApplication.kt

@@ -0,0 +1,17 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+   License, v. 2.0. If a copy of the MPL was not distributed with this
+   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix
+
+import org.mozilla.fenix.components.Components
+import org.mozilla.fenix.components.TestComponents
+
+class TestApplication : FenixApplication() {
+
+    override val components: Components
+        get() = TestComponents(this)
+
+    override fun setupApplication() {
+    }
+}

app/src/test/java/org/mozilla/fenix/components/TestBackgroundServices.kt

@@ -0,0 +1,18 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+   License, v. 2.0. If a copy of the MPL was not distributed with this
+   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix.components
+
+import android.content.Context
+import mozilla.components.browser.storage.sync.PlacesBookmarksStorage
+import mozilla.components.browser.storage.sync.PlacesHistoryStorage
+import mozilla.components.feature.sync.BackgroundSyncManager
+
+class TestBackgroundServices(
+    context: Context,
+    historyStorage: PlacesHistoryStorage,
+    bookmarksStorage: PlacesBookmarksStorage
+) : BackgroundServices(context, historyStorage, bookmarksStorage) {
+    override val syncManager = BackgroundSyncManager("")
+}

app/src/test/java/org/mozilla/fenix/components/TestComponents.kt

@@ -0,0 +1,24 @@
+package org.mozilla.fenix.components
+
+import android.content.Context
+import io.mockk.mockk
+
+class TestComponents(private val context: Context) : Components(context) {
+    override val backgroundServices by lazy {
+        mockk<BackgroundServices>(relaxed = true)
+    }
+    override val services by lazy { Services(backgroundServices.accountManager, useCases.tabsUseCases) }
+    override val core by lazy { TestCore(context) }
+    override val search by lazy { Search(context) }
+    override val useCases by lazy { UseCases(context, core.sessionManager, search.searchEngineManager) }
+    override val utils by lazy {
+        Utilities(
+            context,
+            core.sessionManager,
+            useCases.sessionUseCases,
+            useCases.searchUseCases
+        )
+    }
+    override val analytics by lazy { Analytics(context) }
+    override val storage by lazy { Storage(context) }
+}

app/src/test/java/org/mozilla/fenix/components/TestCore.kt

@@ -0,0 +1,20 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+   License, v. 2.0. If a copy of the MPL was not distributed with this
+   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix.components
+
+import android.content.Context
+import io.mockk.mockk
+import kotlinx.coroutines.ObsoleteCoroutinesApi
+import mozilla.components.browser.engine.gecko.GeckoEngine
+import mozilla.components.browser.session.SessionManager
+import org.mozilla.geckoview.GeckoRuntime
+
+@ObsoleteCoroutinesApi
+class TestCore(private val context: Context) : Core(context) {
+
+    override val runtime = mockk<GeckoRuntime>(relaxed = true)
+    override val engine = mockk<GeckoEngine>(relaxed = true)
+    override val sessionManager = SessionManager(engine)
+}

app/src/test/java/org/mozilla/fenix/components/metrics/ActivationPingTest.kt

@@ -16,11 +16,11 @@ import io.mockk.mockkStatic
 import io.mockk.slot
 import io.mockk.spyk
 import io.mockk.verify
-import org.junit.jupiter.api.Test
+import junit.framework.Assert.assertEquals
+import junit.framework.Assert.assertNull
 
 import kotlinx.coroutines.runBlocking
-import org.junit.jupiter.api.Assertions.assertEquals
-import org.junit.jupiter.api.Assertions.assertNull
+import org.junit.Test
 import org.mockito.ArgumentMatchers.any
 import org.mockito.ArgumentMatchers.anyString
 import java.io.IOException

app/src/test/java/org/mozilla/fenix/library/bookmarks/BookmarkAdapterTest.kt

@@ -14,8 +14,8 @@ import io.reactivex.Observer
 import io.reactivex.observers.TestObserver
 import mozilla.components.concept.storage.BookmarkNode
 import mozilla.components.concept.storage.BookmarkNodeType
-import org.junit.jupiter.api.BeforeEach
-import org.junit.jupiter.api.Test
+import org.junit.Before
+import org.junit.Test
 import org.mozilla.fenix.TestUtils.setRxSchedulers
 
 internal class BookmarkAdapterTest {
@@ -23,7 +23,7 @@ internal class BookmarkAdapterTest {
     private lateinit var bookmarkAdapter: BookmarkAdapter
     private lateinit var emitter: Observer<BookmarkAction>
 
-    @BeforeEach
+    @Before
     fun setup() {
         setRxSchedulers()
         emitter = TestObserver<BookmarkAction>()

app/src/test/java/org/mozilla/fenix/library/bookmarks/BookmarkComponentTest.kt

@@ -13,8 +13,8 @@ import io.reactivex.observers.TestObserver
 import mozilla.appservices.places.BookmarkRoot
 import mozilla.components.concept.storage.BookmarkNode
 import mozilla.components.concept.storage.BookmarkNodeType
-import org.junit.jupiter.api.BeforeEach
-import org.junit.jupiter.api.Test
+import org.junit.Before
+import org.junit.Test
 import org.mozilla.fenix.TestUtils
 import org.mozilla.fenix.mvi.ActionBusFactory
 import org.mozilla.fenix.mvi.UIView
@@ -26,7 +26,7 @@ class BookmarkComponentTest {
     private lateinit var bookmarkObserver: TestObserver<BookmarkState>
     private lateinit var emitter: Observer<BookmarkChange>
 
-    @BeforeEach
+    @Before
     fun setup() {
         MockKAnnotations.init(this)
         TestUtils.setRxSchedulers()

app/src/test/java/org/mozilla/fenix/library/bookmarks/BookmarkFragmentTest.kt

@@ -0,0 +1,60 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+   License, v. 2.0. If a copy of the MPL was not distributed with this
+   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix.library.bookmarks
+
+import androidx.fragment.app.testing.FragmentScenario
+import androidx.fragment.app.testing.launchFragmentInContainer
+import androidx.navigation.NavController
+import androidx.navigation.Navigation
+import io.mockk.Runs
+import io.mockk.every
+import io.mockk.just
+import io.mockk.mockk
+import kotlinx.coroutines.ObsoleteCoroutinesApi
+import mozilla.appservices.places.BookmarkRoot
+import org.junit.Assert.assertEquals
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mozilla.fenix.R
+import org.mozilla.fenix.TestApplication
+import org.mozilla.fenix.TestUtils
+import org.robolectric.RobolectricTestRunner
+import org.robolectric.annotation.Config
+
+@ObsoleteCoroutinesApi
+@RunWith(RobolectricTestRunner::class)
+@Config(application = TestApplication::class)
+class BookmarkFragmentTest {
+
+    private lateinit var scenario: FragmentScenario<BookmarkFragment>
+
+    @Before
+    fun setup() {
+        TestUtils.setRxSchedulers()
+
+        val mockNavController = mockk<NavController>()
+        every { mockNavController.addOnDestinationChangedListener(any()) } just Runs
+
+        val args = BookmarkFragmentArgs(BookmarkRoot.Mobile.id).toBundle()
+        scenario =
+            launchFragmentInContainer<BookmarkFragment>(fragmentArgs = args, themeResId = R.style.NormalTheme) {
+                BookmarkFragment().also { fragment ->
+                    fragment.viewLifecycleOwnerLiveData.observeForever {
+                        if (it != null) {
+                            Navigation.setViewNavController(fragment.requireView(), mockNavController)
+                        }
+                    }
+                }
+            }
+    }
+
+    @Test
+    fun `test initial bookmarks fragment ui`() {
+        scenario.onFragment { fragment ->
+            assertEquals(fragment.getString(R.string.library_bookmarks), fragment.activity?.title)
+        }
+    }
+}

app/src/test/java/org/mozilla/fenix/library/history/HistoryComponentTest.kt

@@ -10,8 +10,8 @@ import io.mockk.mockk
 import io.mockk.spyk
 import io.reactivex.Observer
 import io.reactivex.observers.TestObserver
-import org.junit.jupiter.api.BeforeEach
-import org.junit.jupiter.api.Test
+import org.junit.Before
+import org.junit.Test
 import org.mozilla.fenix.TestUtils.bus
 import org.mozilla.fenix.TestUtils.owner
 import org.mozilla.fenix.TestUtils.setRxSchedulers
@@ -25,7 +25,7 @@ class HistoryComponentTest {
     private lateinit var historyObserver: TestObserver<HistoryState>
     private lateinit var emitter: Observer<HistoryChange>
 
-    @BeforeEach
+    @Before
     fun setup() {
         MockKAnnotations.init(this)
         setRxSchedulers()

architecture/src/main/java/org/mozilla/fenix/test/Mockable.kt

@@ -1,7 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
-   License, v. 2.0. If a copy of the MPL was not distributed with this
-   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-package org.mozilla.fenix.test
-
-annotation class Mockable

architecture/src/main/java/org/mozilla/fenix/test/OpenClass.kt

@@ -0,0 +1,18 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+   License, v. 2.0. If a copy of the MPL was not distributed with this
+   file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix.test
+
+/**
+ * Annotate a class with [OpenClass] to open a class for mocking purposes while keeping it final in release builds
+ */
+@Target(AnnotationTarget.ANNOTATION_CLASS)
+annotation class OpenClass
+
+/**
+ * Annotate a class with [Mockable] to make it extensible in debug builds
+ */
+@OpenClass
+@Target(AnnotationTarget.CLASS)
+annotation class Mockable

buildSrc/src/main/java/Dependencies.kt

@@ -23,15 +23,17 @@ private object Versions {
     const val androidx_fragment = "1.1.0-alpha07"
     const val androidx_navigation = "2.1.0-alpha02"
     const val androidx_recyclerview = "1.1.0-alpha04"
+    const val androidx_testing = "1.1.0-alpha07"
 
     const val appservices_gradle_plugin = "0.4.4"
     const val mozilla_android_components = "0.52.0-SNAPSHOT"
+    const val mozilla_appservices = "0.27.0"
 
     const val autodispose = "1.1.0"
     const val adjust = "4.11.4"
     const val installreferrer = "1.0"
 
-    const val junit_jupiter = "5.3.2"
+    const val junit = "4.12"
     const val mockito = "2.23.0"
     const val mockk = "1.9.kotlin12"
     const val glide = "4.9.0"
@@ -44,7 +46,7 @@ private object Versions {
     const val tools_test_rules = "1.1.1"
     const val tools_test_runner = "1.1.1"
     const val uiautomator = "2.1.3"
-    const val test_tools = "1.0.2"
+    const val robolectric = "4.2"
 
     const val google_ads_id_version = "16.0.0"
 }
@@ -146,10 +148,7 @@ object Deps {
     const val adjust = "com.adjust.sdk:adjust-android:${Versions.adjust}"
     const val installreferrer = "com.android.installreferrer:installreferrer:${Versions.installreferrer}"
 
-    const val junit_jupiter_api = "org.junit.jupiter:junit-jupiter-api:${Versions.junit_jupiter}"
-    const val junit_jupiter_params = "org.junit.jupiter:junit-jupiter-params:${Versions.junit_jupiter}"
-    const val junit_jupiter_engine = "org.junit.jupiter:junit-jupiter-engine:${Versions.junit_jupiter}"
-
+    const val junit = "junit:junit:${Versions.junit}"
     const val mockito_core = "org.mockito:mockito-core:${Versions.mockito}"
     const val mockito_android = "org.mockito:mockito-android:${Versions.mockito}"
     const val mockk = "io.mockk:mockk:${Versions.mockk}"
@@ -167,6 +166,10 @@ object Deps {
     const val tools_test_rules = "com.android.support.test:rules:${Versions.tools_test_rules}"
     const val tools_test_runner = "com.android.support.test:runner:${Versions.tools_test_runner}"
     const val uiautomator = "com.android.support.test.uiautomator:uiautomator-v18:${Versions.uiautomator}"
+    const val robolectric = "org.robolectric:robolectric:${Versions.robolectric}"
+    const val fragment_testing = "androidx.fragment:fragment-testing:${Versions.androidx_testing}"
+    const val megazord_forUnitTests = "org.mozilla.appservices:fenix-megazord-forUnitTests:${Versions.mozilla_appservices}"
+    const val places_forUnitTests = "org.mozilla.appservices:places-forUnitTests:${Versions.mozilla_appservices}"
 
     const val google_ads_id = "com.google.android.gms:play-services-ads-identifier:${Versions.google_ads_id_version}"
 }

gradle.properties

@@ -16,4 +16,5 @@ kotlin.code.style=official
 android.useAndroidX=true
 android.enableJetifier=true
 android.enableR8=true
-android.enableR8.fullMode=true
+android.enableR8.fullMode=true
+android.enableUnitTestBinaryResources=true