This document provides an overview of testing Android applications. It discusses using Robolectric to run tests on a development machine without needing an emulator. It also recommends libraries like Hamcrest, FEST Android, and Awaitility to improve testing. Spoon is presented as a tool to take screenshots during tests. Continuous integration with Jenkins and generating test reports and documentation are also covered.

1. An Overview of
Android Testing
Eric Oestrich
BohConf
7/19/2013

2. Eric Oestrich
http://www.smartlogic.io
https://twitter.com/ericoestrich
https://github.com/oestrich
SmartLogic

3. You can test Android?

4. Regular Android testing
leaves a lot to be
desired

5. Robolectric
http://robolectric.org/

6. Run tests on your
development machine

7. JUnit 4

8. Requires Maven

9. IntelliJ
Supports maven projects

10. Eclipse
Should just use IntelliJ

11. Android Studio
Uses gradle, not much support for
this yet

12. Downsides

13. Content Providers are
still hard to test

14. Still somewhat new
Not every area is able to be tested
nicely

15. Lack of Documentation

16. Extra Libraries You
Should Consider

17. Hamcrest
http://hamcrest.org/JavaHamcrest/

18. Hamcrest
● Nicer assertions than regular JUnit

19. Hamcrest
assertThat(item.getId(), equalTo(itemId));

20. FEST Android
https://github.com/square/fest-android

21. FEST Android
● Fluent assertions make test read nicely
● FEST additions specific to Android

22. FEST Android
assertThat(view.getVisibility(), equalTo(View.GONE));
vs
assertThat(view).isGone();

23. Awaitility
https://code.google.com/p/awaitility/

24. Awaitility
● Handles testing asynchronous code nicely
● Set timeouts

25. Awaitility
public void testActivityTitle() {
await().atMost(TIMEOUT_SECONDS, TimeUnit.SECONDS).until(
activityTitle(), equalTo("Notification"));
Spoon.screenshot(getActivity(), "activity_title");
}

26. Awaitility
protected Callable<String> activityTitle() {
return new Callable<String>() {
@Override
public String call() throws Exception {
return mActivity.getTitle().toString();
}
};
}

27. Spoon
https://github.com/square/spoon

28. Spoon
● Take screenshots of app during test
● Compiles to animated gif
● Instrumentation tests

29. Spoon
public void testActivity() {
Spoon.screenshot(getActivity(), "activity");
}

30. Spoon
http://square.github.io/spoon/sample/index.html

31. Continuous Integration

32. Jenkins Shell Script
export ANDROID_HOME=/var/lib/jenkins/tools/android-sdk
mvn clean test --batch-mode

33. Javadocs

34. JUnit Results

35. Android Emulator Plugin
https://wiki.jenkins-ci.
org/display/JENKINS/Android+Emulator+Plu
gin

36. Resources
● http://corner.squareup.com/2013/05/robolectric-two-point-oh.html
● http://blog.bignerdranch.com/2583-testing-the-android-way/

37. Questions?
http://www.smartlogic.io
http://www.twitter.com/smartlogic
http://www.github.com/smartlogic
http://www.facebook.com/smartlogic