Test GUI - Espresso

Hi

Motivation
How can i autotest the UI ?


Solution
Espresso

• very simple functionality : onView\onData->perform->check

• 3 components (cheat sheet) :

• ViewMatchers : withId , ...
• ViewActions : click , typeText , pressKey , clearText
• ViewAssertions : matches(Matcher) , ....

• you can check that the view has a text
• Top 5 Android Testing Frameworks and the latest
• you can do the following :

onView(withId(R.id.my_view)) // withId(R.id.my_view) is a ViewMatcher


.perform(click())               // click() is a ViewAction
        .check(matches(isDisplayed())); // matches(isDisplayed()) is a ViewAssertion 


notice 3 operations : 1. get view 2. perform operation 3. check result

Espresso runs under "androidTest" i.e. under Device\Emulator


Espresso with intents
suppose i have activity which return info - how can i test it ?
looks like the following link has the answer - here


Questions :

• More solutions ??
• Does it run inside JUnit
• how to check layout order

Reference

• https://codelabs.developers.google.com/codelabs/android-testing/index.html?index=..%2F..%2Findex#0
• very good and also includes Dagger
• http://blog.sqisland.com/2015/04/dagger-2-espresso-2-mockito.html
• http://google.github.io/android-testing-support-library/docs/espresso/index.html
• Testing a single app - Android Development
• AndroidTestingEspresso - YouTube - looks very good
• sample Espresso test - YouTube
• AndroidTestingEspresso - Vogella

Nathan