This is my custom view where "LondonStreet" is a button.
When I tap that button I get url and open it in Safari (it works). Then I can go back, using "Back to Wishlist" button (it also works).
The problem is when I try to test this under UITests.
itemsTable.cells.elementBoundByIndex(0).buttons["addressButton"].tap() //press the button to open link in Safari
Along with this line:
app.statusBars.buttons["Back to Wishlist"].tap() //go back, doesn't work, although it was recorded by Xcode itself.
is an error:
UI Testing Failure - Failed to get screenshot within 5s.
And also in issue Navigator
UI Testing failure - Unable to update application state promptly.
Starting in iOS 11 you can interact with other applications using the XCUIApplication(bundleIdentifier:) initializer.
To get back to your app you'd do something like:
let myApp = XCUIApplication(bundleIdentifier: "my.app.bundle.id")
let safari = XCUIApplication(bundleIdentifier: "com.apple.mobilesafari")
// Perform action in your app that opens Safari
safari.wait(for: .runningForeground, timeout: 30)
myApp.activate() // <--- Go back to your app
UI Testing cannot interact with anything outside of your application. In your scenario, the framework can no longer do anything once your app opens Safari.
To verify this, try printing out the app's hierarchy once Safari opens. You will notice that nothing in Safari nor the navigation bar will show up - you will only see your app's information.
print(XCUIApplication().debugDescription)
来源：https://stackoverflow.com/questions/32522465/how-to-open-url-in-safari-and-the-get-back-to-the-app-under-uitests-in-xcode-7