The Android Test Orchestrator allows you to run each of your app's tests in isolation, enabling greater relability. See https://developer.android.com/training/testing/junit-runner#using-android-test-orchestrator for more background.

This sample is a subset of the AndroidJUnitRunner sample, but it illustrates how to enable the Android Test Orchestrator in the app/build.gradle file.

This project uses the Gradle build system. You don't need an IDE to build and execute it but Android Studio is recommended.

1. Download the project code, preferably using git clone.
2. Open the Android SDK Manager (Tools Menu | Android).
3. In Android Studio, select File | Open... and point to the top-level ./build.gradle file.
4. Check out the relevant code:
   • The application under test is located in src/main/java
   • Tests are in src/androidTest/java
5. Create the test configuration
   • Open Run menu | Edit Configurations
   • Add a new Android Tests configuration
   • Choose a module
6. Connect a device or start an emulator
   • Turn animations off. (On your device, under Settings->Developer options disable the following 3 settings: "Window animation scale", "Transition animation scale" and "Animator duration scale")
7. Run the newly created configuration

The application will be started on the device/emulator and a series of actions will be performed automatically.

If you are using Android Studio, the Run window will show the test results.