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[Jana Moudra] Hands-on with UI testing for Android developers
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Google Developers Group Lviv
September 09, 2016
Technology
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[Jana Moudra] Hands-on with UI testing for Android developers
Presentation from GDG DevFest Ukraine 2016.
Learn more at:
https://devfest.gdg.org.ua
Google Developers Group Lviv
September 09, 2016
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Transcript
UI TESTING for Android Developers Jana Moudrá @Janamou +JanaMoudra
Eh, tests?
Motivation
I tested the app myself...
Not repeatable Time consuming Error-prone Manual Testing
WE WANT TO AUTOMATE
UI testing lets you ensure that your app meets its
functional requirements and achieves a high standard of quality... Source: developer.android.com/training/testing/ui-testing/index.html
ANDROID!
UI Automator vs Espresso Simulates user interactions UI Testing on
Android
src/androidTest/java folder JUnit 4 tests Runs on same device as
app Android tests how to
UI AUTOMATOR
For many apps System apps No app source code Interacts
with visible elements UI Automator
Android 4.3 (18) or higher Works with AndroidJUnitRunner UI Automator
requirements
android { defaultConfig { testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" } } UI Automator
setup build.gradle
dependencies { androidTestCompile 'com.android.support.test:runner:0.5' androidTestCompile 'com.android.support.test.uiautomator:uiautomator-v18:2.1.2' } UI Automator setup
build.gradle
android:contentDescription for ImageView etc. android:hint for EditText UI Automator accessibility
UI Automator Viewer <android-sdk>/tools/
assertEquals(hiButton.getText(), "Hi"); UI Automator asserts
UiDevice UiSelector UiObject UiCollection UiScrollable Configurator UI Automator API
ESPRESSO
For a single app Not for system apps App source
code Espresso
Android 2.2 (8) or higher Works with AndroidJUnitRunner Espresso requirements
android { defaultConfig { testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" } } Espresso setup
build.gradle
dependencies { androidTestCompile 'com.android.support.test:runner:0.5' androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.1' } Espresso setup build.gradle
For Settings/Developer Options: Window animation scale Transition animation scale Animator
duration scale Turn off Animations
ActivityTestRule ViewMatchers ViewActions ViewAssertions Espresso API
Espresso Intents - extension for validation and mocking of Intents
Espresso Contrib - additional features for great tests (RecyclerView) Even more Espresso
WHICH SHOULD I USE?
Black box vs White box Multiple apps vs Single app
Without source code vs With source code UI Automator vs Espresso
Use gestures Retrieve attributes Set text No manipulation What can
I do with UI tests?
Monkey Espresso Test Recorder Firebase Test Lab Other tools
Robolectric Appium Calabash Selendroid Other libraries
NO MORE UNTESTED APPS! Jana Moudrá @Janamou +JanaMoudra
UI TESTING WORKSHOP Jana Moudrá @Janamou +JanaMoudra
1. UI Automator 2. Espresso 3. Test recorder 4. Monkey
Workshop summary
github.com/Janamou/android-testing-codelab Repository
None
• reynermedia, cc, https://www.flickr.com/photos/89228431@N06/1128559 2553/ Image credits