Running gradle's connectedAndroidTest on a specific device

Question

How do you run connectedAndroidTest on a particular device?

I would expect something like:

./gradlew connectedAndroidTest -DconnectedAndroidTest.device=XXXX 

We have a number of devices plugged into our CI server and I can't seem to find any documentation on how to target a specific connected device.

connectedAndroidTest runs the tests on ALL connected devices currently.

Thanks.

Answer 1

Use the ANDROID_SERIAL variable

You can do this two ways:

1. Set environment variable

# Set once; all following gradlew commands will use this export ANDROID_SERIAL=1000AB0123456YZ  ./gradlew <...> 

2. "Set" for just a command

ANDROID_SERIAL=1000AB0123456YZ ./gradlew <...> 

If you set/exported ANDROID_SERIAL (method #1), you can use this to override that for a single command.

Note

This works with emulator identifiers (e.g., "emulator-5554"), too.

Answer 2

It was not supported in 2014. The documentation for connectedCheck at http://tools.android.com/tech-docs/new-build-system/user-guide#TOC-Android-tasks, which delegates to connectedAndroidTest for these sorts of on-device non-UI-automated tests, explicitly states:

Runs checks that requires a connected device or emulator. They will run on all connected devices in parallel.

There is a feature request (now marked as fixed) for the ability to select individual devices: https://code.google.com/p/android/issues/detail?id=66129