Fingerprint reader espresso test

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I am trying to make espresso test for fingerprint reading. It is possible for emulator test with such

Runtime.getRuntime().exec("adb -e emu finger touch 1");

However this same code is not working on real devices. What is the way to do fingerprint reader on espresso test for real devices?

1 Answers

I'm sorry but, as far as I know, this is not possible with real devices.

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