UI Testing With Espresso 2.0 - AndroidListener Chicago, April 2015

Transcript

1. 1.

   UI Testing With Espresso 2.0 Ellen Shapiro AndroidListener Chicago, April

   2015
2. 2.

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

   created by Google.
3. 3.

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

   created by Google. — A great way to integration-test your application
4. 4.

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

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

   hierarchy — Only considers the portions of the view immediately visible to the user
6. 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. 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
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   DEMO

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

   UI every single time.
10. 10.

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

    UI every single time. — Use class and instance Before/After methods
11. 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. 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. 13.

    Other Tips for UI Testing — Make a mock flavor,

    and test on it
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    Other Tips for UI Testing — Make a mock flavor,

    and test on it — Feed your networking stack mock data
15. 15.

    Shameless Vokal Plug Alert!

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    Other Tips for UI Testing — Make a mock flavor,

    and test on it — Feed your networking stack mock data (Mocktrofit)
17. 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. 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. 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
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    NOTE: If You're Using JUnit4... You should Bookmark Jake Wharton's

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

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    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