Xcode 7 UI Automation中的Dimiss触摸ID操作

Question

我正在使用新的自动化框架在Xcode 7中编写UI测试用例，但没有获得方法名称来验证是否出现触摸提示，然后关闭显示在我的应用中的触摸ID提示。

Answer 1

I could not simulate finger touch but i was able to cancel the touch id prompt using addUIInterruptionMonitorWithDescription api available in the test framework

I used the below code to dismiss the dialog

  addUIInterruptionMonitorWithDescription("Touch ID") { (alert) -> Bool in
                alert.buttons["Cancel"].tap()
                return true
            }
           app.tap()

Answer 2

You can dismiss a Touch ID prompt by invalidating authentication LAContext. Dismissing TouchID prompt is introduced in iOS9:-

func invalidateAuthenticationAlert(authContextObjext: LAContext){

    print("Dismiss current prompt")
    authContextObjext.invalidate()
}

Remember:-

• The context is invalidated automatically when it is (auto)released. This method allows invalidating it manually while it is still in scope.

• Invalidation terminates any existing policy evaluation and the respective call will fail with LAErrorAppCancel. After the context has been invalidated, it can not be used for policy evaluation and an attempt to do so will fail with LAErrorInvalidContext.

• Invalidating a context that has been already invalidated has no effect.

Answer 3

In Xcode 9 you can access the Springboard to dismiss the TouchID prompt:

func testExample() {
    let springboard = XCUIApplication(bundleIdentifier: "com.apple.springboard")
    let app = XCUIApplication()
    app.launch()

    // this causes the TouchID prompt to be displayed
    app.buttons["Press Me!"].tap()

    if springboard.alerts.buttons["Cancel"].waitForExistence(timeout: 10) {
        springboard.alerts.buttons["Cancel"].tap()
    }

    // continue test
}

Answer 4

I was able to implement a solution for our project using this Biometrics testing repo here:

https://github.com/KaneCheshire/BiometricAutomationDemo

After the event that kicks off the biometrics alert is completed, you will be able to handle that alert in a number of ways. Using the Obj-C files provided in this repo (and implementing a bridging header) you can provide an invalid or valid biometric for the alert.

Here is a cheat sheet for checking for the existence of an element and dismissing alerts: http://masilotti.com/ui-testing-cheat-sheet/

If you wish to tap "cancel" on the alert, you can do this a number of ways (as mentioned in the cheat sheet I posted) including using the Springboard API.

    func cancelBiometricAlert() {

    let springboard = XCUIApplication(bundleIdentifier: "com.apple.springboard")
    let biometricCancelButton = springboard.alerts.buttons["Cancel"].firstMatch
    if biometricCancelButton.exists {
        biometricCancelButton.tap()
    }
}