Introduction to Android testing explaining existent tools and good practices. Source code examples as well.

1. @fernando_cejas
Code samples:
https://github.com/android10/Inside_Android_Testing
https://github.com/android10/AndroidApplicationTestingSample

2. Who am I?
• GDG Organizer
• Android, Agile and
technology Geek
• NFC Actions App
• Mobile Developer
@fernando_cejas
http://www.fernandocejas.com/

3. Agenda
• Why testing?
• Types of tests
• What to test on Android
• Tools for testing
– JUnit
– Mockito
– Robolectric
– Test Framework

4. Why testing?
• Testing increases the level of
confidence in your code.
• Testing makes it possible to write new
code, and refactor existing code,
without worrying that you’ve broken
existing functionality.

5. Types of Tests

6. Testing on Android… Tools…
• Junit
• Mockito
• Robolectric
• Test Framework

7. JUnit
• JUnit is an open source framework
that has been designed for the purpose
of writing and running unit tests in
Java.

8. Mockito
• Mocking Frameworks allow us to test
the code you want, without its
dependencies.
• Mock objects can simulate the
behaviour of complex objects.
• Mock objects isolate the unit of code
you are testing.

9. Code Sample

10. Robolectric
• Robolectric is a unit test framework
that de-fangs the Android SDK jar so
you can test-drive the development of
your Android app.
• It rewrites Android SDK classes as
they're being loaded and making it
possible for them to run on a regular
JVM.

11. Code Sample

12. Android Test Framework
• Offered by the android framework.
• Needs an emulator to execute the tests
• Lets write unit, integration and
functional tests.
• Has its own mocking framework

13. Code Sample

14. More tools…
• Fest
• Spoon
• Robotium
• UI Automator
• Monkey Runner
• Strict Mode

15. Some useful concepts…
• Dependency Injection
• Code coverage
• Continuous Integration

16. Conclusion
There is virtually no reason why you
should not be testing.

17. Any questions?

18. Thanks!
@fernando_cejas
https://github.com/android10
www.fernandocejas.com
http://corporate.tuenti.com/es/dev/blog