UI Testing With Espresso 2.0 - AndroidListener Chicago, April 2015

Transcript

1. UI Testing With Espresso 2.0 Ellen Shapiro AndroidListener Chicago, April

   2015

2. Espresso: What is? — Open-source UI testing framework for Android

   created by Google.

3. Espresso: What is? — Open-source UI testing framework for Android

   created by Google. — A great way to integration-test your application

4. Espresso: How work? — Hamcrest Matchers dig through the view

   hierarchy

5. Espresso: How work? — Hamcrest Matchers dig through the view

   hierarchy — Only considers the portions of the view immediately visible to the user

6. Espresso: How work? — Hamcrest Matchers dig through the view

   hierarchy — Only considers the portions of the view immediately visible to the user — Can enter text, tap things, scroll, swipe out of the box

7. Espresso: How work? — Hamcrest Matchers dig through the view

   hierarchy — Only considers the portions of the view immediately visible to the user — Can enter text, tap things, scroll, swipe out of the box — Create your own actions

8. DEMO

9. UI Testing Best Practices — Don't navigate through your entire

   UI every single time.

10. UI Testing Best Practices — Don't navigate through your entire

    UI every single time. — Use class and instance Before/After methods

11. UI Testing Best Practices — Don't navigate through your entire

    UI every single time. — Use class and instance Before/After methods — Create a test class for each piece of your UI

12. UI Testing Best Practices — Don't navigate through your entire

    UI every single time. — Use class and instance Before/After methods — Create a test class for each piece of your UI — If there are things you can test without the UI, test them without the UI.

13. Other Tips for UI Testing — Make a mock flavor,

    and test on it

14. Other Tips for UI Testing — Make a mock flavor,

    and test on it — Feed your networking stack mock data

15. Shameless Vokal Plug Alert!

16. Other Tips for UI Testing — Make a mock flavor,

    and test on it — Feed your networking stack mock data (Mocktrofit)

17. Other Tips for UI Testing — Make a mock flavor,

    and test on it — Feed your networking stack mock data (Mocktrofit) — Compare R.string string resources to what's on screen.

18. Other Tips for UI Testing — Make a mock flavor,

    and test on it — Feed your networking stack mock data (Mocktrofit) — Compare R.string string resources to what's on screen. — Remember when you need to scroll!

19. Other Tips for UI Testing — Make a mock flavor,

    and test on it — Feed your networking stack mock data (Mocktrofit) — Compare R.string string resources to what's on screen. — Remember when you need to scroll! — Get to a piece of your UI that's buried without having to tap 800 buttons yourself

20. NOTE: If You're Using JUnit4... You should Bookmark Jake Wharton's

    gist for accessing the activity: https://gist.github.com/ JakeWharton/ 1c2f2cadab2ddd97f9fb

21. Question Time!

22. Links Galore! — Quickstart: https://code.google.com/p/android-test- kit/wiki/EspressoStartGuide — Mocktrofit: https://github.com/vokal/mocktrofit —

    ActivityRule: https://gist.github.com/JakeWharton/ 1c2f2cadab2ddd97f9fb — My Frankenstein Sample Project: https://github.com/ designatednerd/AndroidListenerExamples