How to run Espresso instrumentation tests in parallel in Firebase Test Lab?

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Currently I run Espresso tests on Firebase / Google Test Lab, but it takes time to run them all, as they run in sequentially.

Is there a way to run them in parallel?

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Doug Stevenson On BEST ANSWER

You would need to shard your tests so that you can kick off multiple batches of test that can run in parallel on different devices. Firebase doesn't provide a way to do this directly, but there is an open source project called Flank that can help.