No Touch ID / Face ID prompt in simulator

Question

I am using the KeychainAccess keychain wrapper for Swift to save and read to the keychain using biometrics.

When running in the simulator (Xcode 10.1, iOS 12.1) the Touch ID / Face ID prompt/dialogue is not shown. The value is written to and read from keychain without the user being asked to confirm with biometrics. When I run on a device the prompt comes as expected.

It would seem that the simulator is always in a state where the biometrics is already approved, even though I had not activated the matching touch/face.

Is this a bug or (or perhaps a feature) in the simulator or the SDK? I have an older Objective-C project that uses Apple's old KeychainWrapper, and there I get the prompt in the same simulator.

Answer 1

You can use the following option to trigger Enrolled, Matching Touch/Face and Non-Matching Touch/Face

Simulator >> Hardware > Touch ID
Simulator >> Hardware > Face ID