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End of codelab 3
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‎app/build.gradle‎

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@@ -29,6 +29,7 @@ android {
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// Always show the result of every unit test when running via command line, even if it passes.
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testOptions.unitTests {
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includeAndroidResources = true
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returnDefaultValues = true
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}
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}
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@@ -43,6 +44,7 @@ dependencies {
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implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutinesVersion"
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implementation "com.jakewharton.timber:timber:$timberVersion"
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implementation "androidx.legacy:legacy-support-v4:$androidXLegacySupport"
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implementation "androidx.test.espresso:espresso-idling-resource:$espressoVersion"
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implementation "androidx.room:room-runtime:$roomVersion"
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kapt "androidx.room:room-compiler:$roomVersion"
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@@ -83,6 +85,7 @@ dependencies {
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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:$espressoVersion"
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androidTestImplementation "androidx.arch.core:core-testing:$archTestingVersion"
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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/AppNavigationTest.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
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import android.app.Activity
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import android.view.Gravity
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import androidx.appcompat.widget.Toolbar
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import androidx.drawerlayout.widget.DrawerLayout
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import androidx.test.core.app.ActivityScenario
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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.Espresso.pressBack
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import androidx.test.espresso.IdlingRegistry
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import androidx.test.espresso.action.ViewActions.click
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import androidx.test.espresso.assertion.ViewAssertions.matches
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import androidx.test.espresso.contrib.DrawerMatchers.isClosed
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import androidx.test.espresso.contrib.DrawerMatchers.isOpen
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import androidx.test.espresso.matcher.ViewMatchers.isDisplayed
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import androidx.test.espresso.matcher.ViewMatchers.withContentDescription
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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.LargeTest
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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.TasksRepository
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import com.example.android.architecture.blueprints.todoapp.tasks.TasksActivity
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import com.example.android.architecture.blueprints.todoapp.util.DataBindingIdlingResource
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import com.example.android.architecture.blueprints.todoapp.util.EspressoIdlingResource
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import com.example.android.architecture.blueprints.todoapp.util.monitorActivity
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import kotlinx.coroutines.runBlocking
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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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* Tests for the [DrawerLayout] layout component in [TasksActivity] which manages
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* navigation within the app.
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*
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* UI tests usually use [ActivityTestRule] but there's no API to perform an action before
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* each test. The workaround is to use `ActivityScenario.launch()` and `ActivityScenario.close()`.
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*/
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@RunWith(AndroidJUnit4::class)
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@LargeTest
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class AppNavigationTest {
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private lateinit var tasksRepository: TasksRepository
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// An Idling Resource that waits for Data Binding to have no pending bindings
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private val dataBindingIdlingResource = DataBindingIdlingResource()
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@Before
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fun init() {
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tasksRepository = ServiceLocator.provideTasksRepository(getApplicationContext())
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}
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@After
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fun reset() {
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ServiceLocator.resetRepository()
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}
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/**
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* Idling resources tell Espresso that the app is idle or busy. This is needed when operations
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* are not scheduled in the main Looper (for example when executed on a different thread).
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*/
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@Before
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fun registerIdlingResource() {
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IdlingRegistry.getInstance().register(EspressoIdlingResource.countingIdlingResource)
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IdlingRegistry.getInstance().register(dataBindingIdlingResource)
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}
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/**
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* Unregister your Idling Resource so it can be garbage collected and does not leak any memory.
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*/
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@After
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fun unregisterIdlingResource() {
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IdlingRegistry.getInstance().unregister(EspressoIdlingResource.countingIdlingResource)
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IdlingRegistry.getInstance().unregister(dataBindingIdlingResource)
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}
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@Test
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fun tasksScreen_clickOnAndroidHomeIcon_OpensNavigation() {
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// Start up Tasks screen
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val activityScenario = ActivityScenario.launch(TasksActivity::class.java)
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dataBindingIdlingResource.monitorActivity(activityScenario)
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// Check that left drawer is closed at startup
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onView(withId(R.id.drawer_layout))
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.check(matches(isClosed(Gravity.START))) // Left Drawer should be closed.
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// Open drawer by clicking drawer icon
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onView(
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withContentDescription(
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activityScenario
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.getToolbarNavigationContentDescription()
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)
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).perform(click())
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// Check if drawer is open
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onView(withId(R.id.drawer_layout))
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.check(matches(isOpen(Gravity.START))) // Left drawer is open open.
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// When using ActivityScenario.launch, always call close()
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activityScenario.close()
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}
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@Test
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fun taskDetailScreen_doubleUpButton() = runBlocking {
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val task = Task("Up <- button", "Description")
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tasksRepository.saveTask(task)
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// Start up Tasks screen
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val activityScenario = ActivityScenario.launch(TasksActivity::class.java)
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dataBindingIdlingResource.monitorActivity(activityScenario)
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// Click on the task on the list
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onView(withText("Up <- button")).perform(click())
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// Click on the edit task button
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onView(withId(R.id.edit_task_fab)).perform(click())
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// Confirm that if we click up button once, we end up back at the task details page
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onView(
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withContentDescription(
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activityScenario
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.getToolbarNavigationContentDescription()
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)
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).perform(click())
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onView(withId(R.id.task_detail_title_text)).check(matches(isDisplayed()))
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// Confirm that if we click up button a second time, we end up back at the home screen
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onView(
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withContentDescription(
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activityScenario
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.getToolbarNavigationContentDescription()
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)
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).perform(click())
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onView(withId(R.id.tasks_container_layout)).check(matches(isDisplayed()))
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// When using ActivityScenario.launch, always call close()
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activityScenario.close()
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}
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@Test
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fun taskDetailScreen_doubleBackButton() = runBlocking {
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val task = Task("Back button", "Description")
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tasksRepository.saveTask(task)
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// Start up Tasks screen
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val activityScenario = ActivityScenario.launch(TasksActivity::class.java)
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dataBindingIdlingResource.monitorActivity(activityScenario)
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// Click on the task on the list
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onView(withText("Back button")).perform(click())
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// Click on the edit task button
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onView(withId(R.id.edit_task_fab)).perform(click())
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// Confirm that if we click back once, we end up back at the task details page
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pressBack()
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onView(withId(R.id.task_detail_title_text)).check(matches(isDisplayed()))
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// Confirm that if we click back a second time, we end up back at the home screen
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pressBack()
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onView(withId(R.id.tasks_container_layout)).check(matches(isDisplayed()))
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// When using ActivityScenario.launch, always call close()
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activityScenario.close()
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}
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}
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fun <T : Activity> ActivityScenario<T>.getToolbarNavigationContentDescription()
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: String {
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var description = ""
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onActivity {
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description =
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it.findViewById<Toolbar>(R.id.toolbar).navigationContentDescription as String
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}
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return description
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}

‎app/src/androidTest/java/com/example/android/architecture/blueprints/todoapp/TasksActivityTest.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
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import androidx.test.core.app.ActivityScenario
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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.IdlingRegistry
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import androidx.test.espresso.action.ViewActions.click
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import androidx.test.espresso.action.ViewActions.closeSoftKeyboard
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import androidx.test.espresso.action.ViewActions.replaceText
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import androidx.test.espresso.action.ViewActions.typeText
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import androidx.test.espresso.assertion.ViewAssertions.doesNotExist
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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.LargeTest
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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.TasksRepository
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import com.example.android.architecture.blueprints.todoapp.tasks.TasksActivity
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import com.example.android.architecture.blueprints.todoapp.util.DataBindingIdlingResource
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import com.example.android.architecture.blueprints.todoapp.util.EspressoIdlingResource
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import com.example.android.architecture.blueprints.todoapp.util.monitorActivity
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import kotlinx.coroutines.runBlocking
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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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* Large End-to-End test for the tasks module.
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*
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* UI tests usually use [ActivityTestRule] but there's no API to perform an action before
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* each test. The workaround is to use `ActivityScenario.launch()` and `ActivityScenario.close()`.
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*/
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@RunWith(AndroidJUnit4::class)
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@LargeTest
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class TasksActivityTest {
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private lateinit var repository: TasksRepository
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// An Idling Resource that waits for Data Binding to have no pending bindings
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private val dataBindingIdlingResource = DataBindingIdlingResource()
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@Before
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fun init() {
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repository =
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ServiceLocator.provideTasksRepository(
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getApplicationContext()
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)
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runBlocking {
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repository.deleteAllTasks()
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}
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}
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@After
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fun reset() {
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ServiceLocator.resetRepository()
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}
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/**
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* Idling resources tell Espresso that the app is idle or busy. This is needed when operations
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* are not scheduled in the main Looper (for example when executed on a different thread).
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*/
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@Before
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fun registerIdlingResource() {
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IdlingRegistry.getInstance().register(EspressoIdlingResource.countingIdlingResource)
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IdlingRegistry.getInstance().register(dataBindingIdlingResource)
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}
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/**
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* Unregister your Idling Resource so it can be garbage collected and does not leak any memory.
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*/
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@After
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fun unregisterIdlingResource() {
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IdlingRegistry.getInstance().unregister(EspressoIdlingResource.countingIdlingResource)
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IdlingRegistry.getInstance().unregister(dataBindingIdlingResource)
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}
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@Test
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fun editTask() = runBlocking {
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repository.saveTask(Task("TITLE1", "DESCRIPTION"))
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// Start up Tasks screen
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val activityScenario = ActivityScenario.launch(TasksActivity::class.java)
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dataBindingIdlingResource.monitorActivity(activityScenario)
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// Click on the task on the list and verify that all the data is correct
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onView(withText("TITLE1")).perform(click())
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onView(withId(R.id.task_detail_title_text)).check(matches(withText("TITLE1")))
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onView(withId(R.id.task_detail_description_text)).check(matches(withText("DESCRIPTION")))
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onView(withId(R.id.task_detail_complete_checkbox)).check(matches(not(isChecked())))
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// Click on the edit button, edit, and save
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onView(withId(R.id.edit_task_fab)).perform(click())
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onView(withId(R.id.add_task_title_edit_text)).perform(replaceText("NEW TITLE"))
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onView(withId(R.id.add_task_description_edit_text)).perform(replaceText("NEW DESCRIPTION"))
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onView(withId(R.id.save_task_fab)).perform(click())
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// Verify task is displayed on screen in the task list.
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onView(withText("NEW TITLE")).check(matches(isDisplayed()))
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// Verify previous task is not displayed
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onView(withText("TITLE1")).check(doesNotExist())
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// Make sure the activity is closed before resetting the db:
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activityScenario.close()
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}
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@Test
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fun createOneTask_deleteTask() {
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// start up Tasks screen
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val activityScenario = ActivityScenario.launch(TasksActivity::class.java)
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dataBindingIdlingResource.monitorActivity(activityScenario)
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// Add active task
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onView(withId(R.id.add_task_fab)).perform(click())
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onView(withId(R.id.add_task_title_edit_text))
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.perform(typeText("TITLE1"), closeSoftKeyboard())
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onView(withId(R.id.add_task_description_edit_text)).perform(typeText("DESCRIPTION"))
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onView(withId(R.id.save_task_fab)).perform(click())
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// Open it in details view
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onView(withText("TITLE1")).perform(click())
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// Click delete task in menu
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onView(withId(R.id.menu_delete)).perform(click())
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// Verify it was deleted
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onView(withId(R.id.menu_filter)).perform(click())
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onView(withText(R.string.nav_all)).perform(click())
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onView(withText("TITLE1")).check(doesNotExist())
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// Make sure the activity is closed before resetting the db:
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activityScenario.close()
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}
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}

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