fingerprint emulation

1. Setting up the emulator, running a minimum of M (23) :

Settings> Security> ( pattern if enabled) > Fingerprint

• add fingerprint

  ./adb devices to get emulator id --> emulator-5554
  
  ./adb -s emulator-5554 emu finger touch 1
  

to add a new fingerprint where 1 is the id

2. When you touch the authenticate button, it says

   "Swipe finger'

you need to send the fingerprint with id that you set up via:

./adb -s emulator-5554 emu finger touch 1

and you should get

"auth ok"