Android Test Sharding with Spoon

Question

I am using Spoon and Espresso to automate UI/Functional instrumentation tests on our android app.

I would like to know if there is a way to distribute instrumentation tests across the multiple connected devices and/or emulators so that i can reduce the test execution time.

Ex: I have say 300 tests that take 15 mins to run on 1 emulator. Is there a way i can add more emulators (say 4), distribute 75 tests to each emulator and reduce the test execution time?

Appreciate your inputs on this.

Answer 1

What you are looking for is called auto-sharding. You have to call the spoon-runner with --shard and add the serials from all connected devices with -serial. You can find the serials with adb devices.