Android UI Testing with Espresso

Slides for the talk I gave at Droidcon Spain 2013 & Droidcon Italy 2014 about UI testing with Google's Espresso testing API for Android

Code for this session can be found here: https://github.com/xrigau/droidcon-android-espresso

Transcript

1. UI testing with Espresso Xavi Rigau
2. Who am I? ✦ +Xavi Rigau – @xrigau – github.com/xrigau – xavi@novoda.com ✦ 23. Born in Barcelona – Living in London ✦ Started working on Android in 2010 ✦ Currently working @Novoda – github.com/novoda
3. Novoda
4. We’re hiring! ✦ Software craftsmen ✦ Passionate people ✦ Open source enthusiasts ✦ Positions available in London and Berlin ✦ Send us an email: info@novoda.com
5. Agenda ✦ What’s Espresso? ✦ Why Espresso? ✦ API Overview ✦ Practice!
6. What’s Espresso? http://adnatomy.wordpress.com/2013/03/05/brand-positioning-nespresso/ not http://www.memegen.com/meme/wtuw41
7. What’s Espresso? ✦ “a fun little Android UI test API” – Google ✦ Presented during Google Test Automation Conference 2013 (1) ✦ Open Source – code.google.com/p/android-test-kit ✦ Allows writing painless UI tests with a nice interface ✦ Compatible with Android API 8, 10 & 15 - 19 1. GTAC 2013: Espresso – youtu.be/T7ugmCuNxDU
8. ✦ Easy to set up (1) ✦ Fluid API (high level, readable tests) ✦ Extensible (based on Matchers – create your own!) ✦ Fast execution (Smart Waiting – no need to sleep()) Why Espresso? 1. Not in Maven central, use Novoda’s repo: github.com/novoda/public-mvn-repo/tree/master/releases http://en.wikipedia.org/wiki/Buddy_Christ
9. API Overview onView(Matcher<View>) onData(Matcher<Object>) withId()/withText()/etc is()/instanceOf()/etc click()/typeText()/etc isDisplayed()/withText()/etc perform(ViewAction) check(ViewAssertion) matches(Matcher<? super View>)
10. API Overview ✦ Examples: • onView(withId(R.id.some_id)).check(matches(isDisplayed())); • onView(withId(R.id.other_id)).perform(click()); • onData(is(someObject)).perform(click());
11. Demo time! ✦ Espresso – $ git clone https://code.google.com/p/android-test-kit/ ✦ droidcon-android-espresso – github.com/xrigau/droidcon-android-espresso ✦ $ git clone git@github.com:xrigau/droidcon-android-espresso.git ✦ Write some tests! (Look at the “Next steps” section in the Readme file) http://memegenerator.net/instance/27270106
12. Bonus: Espresso 1.1 ✦ Adds swipe left & right actions for ViewPagers ✦ Multi-window support! (for Dialog, AutoCompleteTextView, …) ✦ Contrib Library (depends on the support library - not in core) • Adds support for DrawerLayout ✦ Other improvements, bug fixes and optimisations Release notes: https://code.google.com/p/android-test-kit/wiki/ReleaseNotes
13. Thanks! http://imgace.com/pic/2011/09/unhelpful-high-school-teacher-meme/