Can we test Face ID in simulator?

Question

Can we test biometric authentication using the simulator?

The iPhone X Simulator shows a menu for Face ID enrollment, but after enabling that, what can I do?

Answer 1

same as give by @krunal just 2nd if should be outside of 1st.

import LocalAuthentication

class ViewController: UIViewController {

override func viewDidLoad() {
    super.viewDidLoad()
    localAuthentication()
}

func localAuthentication() -> Void {

    let laContext = LAContext()
    var error: NSError?
    let biometricsPolicy = LAPolicy.deviceOwnerAuthenticationWithBiometrics

    if (laContext.canEvaluatePolicy(biometricsPolicy, error: &error)) {



        var localizedReason = "Unlock device"
        if #available(iOS 11.0, *) {
            if (laContext.biometryType == LABiometryType.faceID) {
                localizedReason = "Unlock using Face ID"
                print("FaceId support")
            } else if (laContext.biometryType == LABiometryType.touchID) {
                localizedReason = "Unlock using Touch ID"
                print("TouchId support")
            } else {
                print("No Biometric support")
            }
        } else {
            // Fallback on earlier versions
        }


        laContext.evaluatePolicy(biometricsPolicy, localizedReason: localizedReason, reply: { (isSuccess, error) in

            DispatchQueue.main.async(execute: {

                if let laError = error {
                    print("laError - \(laError)")
                } else {
                    if isSuccess {
                        print("sucess")
                    } else {
                        print("failure")
                    }
                }
            })
        })
    }
//This should be outside of if

 if let laError = error {
        print("laError - \(laError)")
        return
     }
 }
}