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Testing Support Library

The Android Testing Support Library provides an extensive framework for testing Android apps. This library provides a set of APIs that allow you to quickly build and run test code for your apps, including JUnit 4 and functional user interface (UI) tests. You can run tests created using these APIs from the Android Studio IDE or from the command line.


Use Espresso to write concise, beautiful, and reliable Android UI tests.

Read more about Espresso.

Android JUnit Runner

AndroidJUnitRunner is a new unbundled test runner for Android. It features:

Read more about the Android JUnit Runner.

JUnit4 Rules

With the Android Testing Support Library we provide a set of JUnit rules to be used with the Android JUnit Runner. JUnit rules provide more flexibility and reduce the boilerplate code required in tests.

Read more about the JUnit4 Rules.

UI Automator

UI Automator is a UI testing framework suitable for cross-app functional UI testing across system and installed apps.

Read more about UI Automator.

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