UI testing for BreedListFragment

app/build.gradle

@@ -6,6 +6,11 @@ apply plugin: 'androidx.navigation.safeargs'
 apply plugin: 'kotlin-kapt'
 
 android {
+    useLibrary 'android.test.runner'
+
+    useLibrary 'android.test.base'
+    useLibrary 'android.test.mock'
+
     compileSdkVersion versions.compileSdkVersion
     dataBinding {
         enabled = true
@@ -45,6 +50,34 @@ dependencies {
     testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:' + versions.coroutines
     testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:' + versions.coroutinesTest
 
+
+    // Dependencies for local unit tests
+
+    testImplementation 'androidx.test:core-ktx:' + versions.androidxCore
+    testImplementation 'org.robolectric:robolectric:' + versions.roboelectric
+    testImplementation 'androidx.test.ext:junit-ktx:' + versions. androidXTestExtKotlinRunner
+
+
+    // AndroidX Test - Instrumented testing
+    androidTestImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:' + versions.coroutinesTest
+    androidTestImplementation 'androidx.test.ext:junit:' + versions. androidXTestExtKotlinRunner
+    androidTestImplementation 'androidx.test.espresso:espresso-core:' + versions.espressoCore
+    androidTestImplementation 'androidx.test.espresso:espresso-contrib:' + versions.espressoCore
+
+    androidTestImplementation 'junit:junit:' + versions.junit
+    androidTestImplementation 'org.mockito:mockito-core:' + versions.mockito
+    androidTestImplementation 'com.linkedin.dexmaker:dexmaker-mockito:' + versions.dexMaker
+
+
+    // Dependencies for Android instrumented unit tests
+  //  androidTestImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:' + versions.coroutines
+
+    // Testing code should not be included in the main code.
+    // Once https://issuetracker.google.com/128612536 is fixed this can be fixed.
+
+    implementation ("androidx.fragment:fragment-testing:1.1.0-beta01", {exclude group: 'androidx.test', module: 'core'} )
+    implementation 'androidx.test:core:' + versions.androidxCore
+
     androidTestImplementation 'androidx.test:runner:' + versions.testRunner
     androidTestImplementation 'androidx.test.espresso:espresso-core:' + versions.espressoCore
     androidTestImplementation 'androidx.arch.core:core-testing:' + versions.coreTestingVersion
@@ -69,7 +102,7 @@ dependencies {
 
 
     // Android X
-    implementation 'androidx.core:core-ktx:' + versions.androidxCore
+    implementation 'androidx.core:core-ktx:' + versions.androidXCore
     implementation 'androidx.recyclerview:recyclerview:' + versions.androidxRecyclerView
     implementation 'androidx.browser:browser:' + versions.androidxBrowser
 

app/src/androidTest/java/com/cottacush/android/androidbaseprojectkt/sample/catlist/BreedListFragmentTest.kt

@@ -0,0 +1,80 @@
+package com.cottacush.android.androidbaseprojectkt.sample.catlist
+
+import android.os.Bundle
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.fragment.app.testing.launchFragmentInContainer
+import androidx.navigation.NavController
+import androidx.navigation.Navigation
+import androidx.recyclerview.widget.RecyclerView
+import androidx.room.Room
+import androidx.test.core.app.ApplicationProvider
+import androidx.test.espresso.Espresso.onView
+import androidx.test.espresso.action.ViewActions.click
+import androidx.test.espresso.contrib.RecyclerViewActions
+import androidx.test.espresso.matcher.ViewMatchers.*
+import androidx.test.filters.MediumTest
+import com.cottacush.android.androidbaseprojectkt.R
+import com.cottacush.android.androidbaseprojectkt.sample.breeddetails.BreedDetailsFragment
+import com.cottacush.android.androidbaseprojectkt.sample.models.BreedDatabase
+import com.cottacush.android.androidbaseprojectkt.sample.models.DatabaseBreedModel
+import com.cottacush.android.androidbaseprojectkt.sample.models.asDomainModel
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.test.runBlockingTest
+import org.junit.After
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.InjectMocks
+import org.mockito.Mockito.mock
+import org.mockito.Mockito.verify
+
+
+@MediumTest
+@ExperimentalCoroutinesApi
+@RunWith(AndroidJUnit4::class)
+class BreedListFragmentTest {
+
+    private val database = Room
+        .inMemoryDatabaseBuilder(
+            ApplicationProvider.getApplicationContext(),
+            BreedDatabase::class.java
+        ).build()
+    private val dataBaseBreed = mock(DatabaseBreedModel::class.java)
+    private val list = listOf(dataBaseBreed)
+    private val model = list.asDomainModel()[0]
+
+    @Test
+    fun clickBreed_navigateToDetailFragment() {
+        runBlockingTest {
+            database.breedDao.insertAllBreed(dataBaseBreed)
+        }
+        val navController = mock(NavController::class.java)
+
+        val scenerio = launchFragmentInContainer<BreedDetailsFragment>(Bundle(), R.style.AppTheme)
+
+        scenerio.onFragment {
+            Navigation.setViewNavController(it.view!!, navController)
+        }
+        onView(withId(R.id.breedsRecyclerView))
+            .perform(
+                RecyclerViewActions.actionOnItem<RecyclerView.ViewHolder>(
+                    hasDescendant(
+                        withText(model.description)
+                    ), click()
+                )
+            )
+
+        verify(navController).navigate(
+            BreedListFragmentDirections.actionCatsListFragmentToBreedDetailsFragment(
+                model
+            )
+        )
+    }
+
+    @After
+    fun tearDown() {
+        database?.run {
+            clearAllTables()
+            close()
+        }
+    }
+}

app/src/main/AndroidManifest.xml

@@ -6,6 +6,7 @@
     <uses-permission android:name="android.permission.INTERNET"/>
 
     <application
+
         android:name=".App"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
@@ -21,6 +22,7 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <uses-library android:name="android.test.runner" />
     </application>
 
 </manifest>

dependencies.gradle

@@ -9,10 +9,15 @@ ext.versions = [
         //tests
         junit               : '4.12',
         testRunner          : '1.2.0',
-        espressoCore        : '3.2.0',
+        espressoCore        : '3.2.0-beta01',
         coreTestingVersion  : '2.0.0',
-        coroutinesCore      : '1.2.1',
+        coroutinesCore      : '1.3.2',
         coroutinesTest      : '1.3.2',
+        dexMaker            : '2.12.1',
+        fragment            : '1.1.0-alpha07',
+        androidxCore        : '1.2.0',
+        roboelectric        : '4.3.1',
+        androidXTestExtKotlinRunner :'1.1.1',
 
         //mockito
         mockitoVersion      : "2.25.0",
@@ -24,11 +29,11 @@ ext.versions = [
         spotlessPlugin    : '3.23.1',
 
         // Kotlin
-        kotlin              : '1.3.40',
+        kotlin              : '1.3.50',
         coroutines          : '1.2.1',
 
         // AndroidX
-        androidxCore        : '1.0.1',
+        androidXCore       : '1.0.1',
         androidxRecyclerView: '1.0.0',
         androidxMaterial    : '1.0.0',
         androidxBrowser     : '1.0.0',

gradle.properties

@@ -19,3 +19,5 @@ android.useAndroidX=true
 android.enableJetifier=true
 # Kotlin code style for this project: "official" or "obsolete":
 kotlin.code.style=official
+
+kapt.incremental.apt=true