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End of codelab 2
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‎app/build.gradle‎

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@@ -62,6 +62,18 @@ dependencies {
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testImplementation "org.hamcrest:hamcrest-all:$hamcrestVersion"
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testImplementation "androidx.arch.core:core-testing:$archTestingVersion"
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testImplementation "org.robolectric:robolectric:$robolectricVersion"
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testImplementation "org.jetbrains.kotlinx:kotlinx-coroutines-test:$coroutinesVersion"
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// Dependencies for Android instrumented unit tests
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androidTestImplementation "junit:junit:$junitVersion"
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androidTestImplementation "org.mockito:mockito-core:$mockitoVersion"
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androidTestImplementation "com.linkedin.dexmaker:dexmaker-mockito:$dexMakerVersion"
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androidTestImplementation "org.jetbrains.kotlinx:kotlinx-coroutines-test:$coroutinesVersion"
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// Testing code should not be included in the main code.
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// Once https://issuetracker.google.com/128612536 is fixed this can be fixed.
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implementation "androidx.fragment:fragment-testing:$fragmentVersion"
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implementation "androidx.test:core:$androidXTestCoreVersion"
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// AndroidX Test - JVM testing
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testImplementation "androidx.test:core-ktx:$androidXTestCoreVersion"
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// AndroidX Test - Instrumented testing
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androidTestImplementation "androidx.test.ext:junit:$androidXTestExtKotlinRunnerVersion"
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androidTestImplementation "androidx.test.espresso:espresso-core:$espressoVersion"
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androidTestImplementation "androidx.test.espresso:espresso-contrib:$espressoVersion"
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// Kotlin
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implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlinVersion"

‎app/src/androidTest/java/com/example/android/architecture/blueprints/todoapp/data/source/FakeAndroidTestRepository.kt‎

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/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.android.architecture.blueprints.todoapp.data.source
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import androidx.lifecycle.LiveData
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import androidx.lifecycle.MutableLiveData
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import androidx.lifecycle.map
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import com.example.android.architecture.blueprints.todoapp.data.Result
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import com.example.android.architecture.blueprints.todoapp.data.Result.Error
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import com.example.android.architecture.blueprints.todoapp.data.Result.Success
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import com.example.android.architecture.blueprints.todoapp.data.Task
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import kotlinx.coroutines.runBlocking
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import java.util.LinkedHashMap
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/**
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* Implementation of a remote data source with static access to the data for easy testing.
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*/
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class FakeAndroidTestRepository : TasksRepository {
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var tasksServiceData: LinkedHashMap<String, Task> = LinkedHashMap()
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private val observableTasks = MutableLiveData<Result<List<Task>>>()
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override suspend fun refreshTasks() {
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observableTasks.value = getTasks()
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}
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override suspend fun refreshTask(taskId: String) {
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refreshTasks()
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}
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override fun observeTasks(): LiveData<Result<List<Task>>> {
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runBlocking { refreshTasks() }
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return observableTasks
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}
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override fun observeTask(taskId: String): LiveData<Result<Task>> {
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runBlocking { refreshTasks() }
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return observableTasks.map { tasks ->
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when (tasks) {
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is Result.Loading -> Result.Loading
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is Error -> Error(tasks.exception)
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is Success -> {
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val task = tasks.data.firstOrNull() { it.id == taskId }
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?: return@map Error(Exception("Not found"))
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Success(task)
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}
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}
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}
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}
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override suspend fun getTask(taskId: String, forceUpdate: Boolean): Result<Task> {
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tasksServiceData[taskId]?.let {
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return Success(it)
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}
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return Error(Exception("Could not find task"))
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}
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override suspend fun getTasks(forceUpdate: Boolean): Result<List<Task>> {
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return Success(tasksServiceData.values.toList())
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}
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override suspend fun saveTask(task: Task) {
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tasksServiceData[task.id] = task
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}
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override suspend fun completeTask(task: Task) {
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val completedTask = task.copy(isCompleted = true)
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tasksServiceData[task.id] = completedTask
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refreshTasks()
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}
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override suspend fun completeTask(taskId: String) {
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// Not required for the remote data source.
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throw NotImplementedError()
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}
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override suspend fun activateTask(task: Task) {
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val activeTask = task.copy(isCompleted = false)
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tasksServiceData[task.id] = activeTask
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refreshTasks()
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}
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override suspend fun activateTask(taskId: String) {
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throw NotImplementedError()
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}
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override suspend fun clearCompletedTasks() {
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tasksServiceData = tasksServiceData.filterValues {
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!it.isCompleted
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} as LinkedHashMap<String, Task>
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}
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override suspend fun deleteTask(taskId: String) {
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tasksServiceData.remove(taskId)
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refreshTasks()
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}
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override suspend fun deleteAllTasks() {
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tasksServiceData.clear()
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refreshTasks()
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}
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fun addTasks(vararg tasks: Task) {
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for (task in tasks) {
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tasksServiceData[task.id] = task
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}
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runBlocking { refreshTasks() }
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}
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}

‎app/src/androidTest/java/com/example/android/architecture/blueprints/todoapp/taskdetail/TaskDetailFragmentTest.kt‎

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/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.android.architecture.blueprints.todoapp.taskdetail
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import androidx.fragment.app.testing.launchFragmentInContainer
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import androidx.test.espresso.Espresso.onView
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import androidx.test.espresso.assertion.ViewAssertions.matches
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import androidx.test.espresso.matcher.ViewMatchers.isChecked
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import androidx.test.espresso.matcher.ViewMatchers.isDisplayed
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import androidx.test.espresso.matcher.ViewMatchers.withId
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import androidx.test.espresso.matcher.ViewMatchers.withText
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import androidx.test.ext.junit.runners.AndroidJUnit4
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import androidx.test.filters.MediumTest
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import com.example.android.architecture.blueprints.todoapp.R
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import com.example.android.architecture.blueprints.todoapp.ServiceLocator
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import com.example.android.architecture.blueprints.todoapp.data.Task
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import com.example.android.architecture.blueprints.todoapp.data.source.FakeAndroidTestRepository
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import com.example.android.architecture.blueprints.todoapp.data.source.TasksRepository
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import kotlinx.coroutines.ExperimentalCoroutinesApi
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import kotlinx.coroutines.test.runBlockingTest
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import org.hamcrest.core.IsNot.not
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import org.junit.After
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import org.junit.Before
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import org.junit.Test
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import org.junit.runner.RunWith
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/**
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* Integration test for the Task Details screen.
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*/
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@MediumTest
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@RunWith(AndroidJUnit4::class)
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@ExperimentalCoroutinesApi
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class TaskDetailFragmentTest {
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private lateinit var repository: TasksRepository
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@Before
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fun initRepository() {
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repository = FakeAndroidTestRepository()
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ServiceLocator.tasksRepository = repository
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}
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@After
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fun cleanupDb() = runBlockingTest {
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ServiceLocator.resetRepository()
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}
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@Test
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fun activeTaskDetails_DisplayedInUi() = runBlockingTest{
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// GIVEN - Add active (incomplete) task to the DB
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val activeTask = Task("Active Task", "AndroidX Rocks", false)
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repository.saveTask(activeTask)
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// WHEN - Details fragment launched to display task
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val bundle = TaskDetailFragmentArgs(activeTask.id).toBundle()
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launchFragmentInContainer<TaskDetailFragment>(bundle, R.style.AppTheme)
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// THEN - Task details are displayed on the screen
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// make sure that the title/description are both shown and correct
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onView(withId(R.id.task_detail_title_text)).check(matches(isDisplayed()))
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onView(withId(R.id.task_detail_title_text)).check(matches(withText("Active Task")))
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onView(withId(R.id.task_detail_description_text)).check(matches(isDisplayed()))
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onView(withId(R.id.task_detail_description_text)).check(matches(withText("AndroidX Rocks")))
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// and make sure the "active" checkbox is shown unchecked
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onView(withId(R.id.task_detail_complete_checkbox)).check(matches(isDisplayed()))
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onView(withId(R.id.task_detail_complete_checkbox)).check(matches(not(isChecked())))
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}
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@Test
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fun completedTaskDetails_DisplayedInUi() = runBlockingTest{
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// GIVEN - Add completed task to the DB
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val completedTask = Task("Completed Task", "AndroidX Rocks", true)
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repository.saveTask(completedTask)
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// WHEN - Details fragment launched to display task
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val bundle = TaskDetailFragmentArgs(completedTask.id).toBundle()
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launchFragmentInContainer<TaskDetailFragment>(bundle, R.style.AppTheme)
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// THEN - Task details are displayed on the screen
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// make sure that the title/description are both shown and correct
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onView(withId(R.id.task_detail_title_text)).check(matches(isDisplayed()))
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onView(withId(R.id.task_detail_title_text)).check(matches(withText("Completed Task")))
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onView(withId(R.id.task_detail_description_text)).check(matches(isDisplayed()))
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onView(withId(R.id.task_detail_description_text)).check(matches(withText("AndroidX Rocks")))
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// and make sure the "active" checkbox is shown unchecked
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onView(withId(R.id.task_detail_complete_checkbox)).check(matches(isDisplayed()))
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onView(withId(R.id.task_detail_complete_checkbox)).check(matches(isChecked()))
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}
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}

‎app/src/androidTest/java/com/example/android/architecture/blueprints/todoapp/tasks/TasksFragmentTest.kt‎

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/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.android.architecture.blueprints.todoapp.tasks
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import android.content.Context
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import android.os.Bundle
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import androidx.fragment.app.testing.launchFragmentInContainer
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import androidx.navigation.NavController
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import androidx.navigation.Navigation
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import androidx.recyclerview.widget.RecyclerView
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import androidx.test.core.app.ApplicationProvider.getApplicationContext
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import androidx.test.espresso.Espresso.onView
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import androidx.test.espresso.action.ViewActions.click
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import androidx.test.espresso.contrib.RecyclerViewActions
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import androidx.test.espresso.matcher.ViewMatchers.*
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import androidx.test.ext.junit.runners.AndroidJUnit4
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import androidx.test.filters.MediumTest
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import com.example.android.architecture.blueprints.todoapp.R
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import com.example.android.architecture.blueprints.todoapp.ServiceLocator
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import com.example.android.architecture.blueprints.todoapp.data.Task
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import com.example.android.architecture.blueprints.todoapp.data.source.FakeAndroidTestRepository
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import com.example.android.architecture.blueprints.todoapp.data.source.TasksRepository
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import kotlinx.coroutines.ExperimentalCoroutinesApi
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import kotlinx.coroutines.test.runBlockingTest
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import org.junit.After
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import org.junit.Before
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import org.junit.Test
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import org.junit.runner.RunWith
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import org.mockito.Mockito.mock
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import org.mockito.Mockito.verify
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/**
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* Integration test for the Task List screen.
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*/
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// TODO - Use FragmentScenario, see: https://github.com/android/android-test/issues/291
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@RunWith(AndroidJUnit4::class)
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@MediumTest
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@ExperimentalCoroutinesApi
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class TasksFragmentTest {
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private lateinit var repository: TasksRepository
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@Before
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fun initRepository() {
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repository = FakeAndroidTestRepository()
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ServiceLocator.tasksRepository = repository
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}
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@After
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fun cleanupDb() = runBlockingTest {
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ServiceLocator.resetRepository()
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}
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@Test
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fun clickAddTaskButton_navigateToAddEditFragment() {
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// GIVEN - On the home screen
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val scenario = launchFragmentInContainer<TasksFragment>(Bundle(), R.style.AppTheme)
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val navController = mock(NavController::class.java)
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scenario.onFragment {
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Navigation.setViewNavController(it.view!!, navController)
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}
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// WHEN - Click on the "+" button
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onView(withId(R.id.add_task_fab)).perform(click())
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// THEN - Verify that we navigate to the add screen
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verify(navController).navigate(
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TasksFragmentDirections.actionTasksFragmentToAddEditTaskFragment(
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null, getApplicationContext<Context>().getString(R.string.add_task)
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)
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)
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}
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@Test
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fun clickTask_navigateToDetailFragmentOne() = runBlockingTest {
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repository.saveTask(Task("TITLE1", "DESCRIPTION1", false, "id1"))
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repository.saveTask(Task("TITLE2", "DESCRIPTION2", true, "id2"))
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// GIVEN - On the home screen
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val scenario = launchFragmentInContainer<TasksFragment>(Bundle(), R.style.AppTheme)
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val navController = mock(NavController::class.java)
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scenario.onFragment {
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Navigation.setViewNavController(it.view!!, navController)
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}
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// WHEN - Click on the first list item
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onView(withId(R.id.tasks_list))
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.perform(RecyclerViewActions.actionOnItem<RecyclerView.ViewHolder>(
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hasDescendant(withText("TITLE1")), click()))
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// THEN - Verify that we navigate to the first detail screen
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verify(navController).navigate(
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TasksFragmentDirections.actionTasksFragmentToTaskDetailFragment( "id1")
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)
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}
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}

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