ios – UITests：如何通过带有谓词的accessibilityIdentifier找到UIBarButtonItem？

这是我在代码中设置它的方式：

let userBarButtonItem = UIBarButtonItem(image: userIcon,style: .Plain,target: self,action: Selector("userButtonTapped:"))
userBarButtonItem.accessibilityIdentifier = "userBarButtonItem"

然后在UITestCase里面我需要找到这个：

XCUIApplication().otherElements["userBarButtonItem"] //doesnt work,and the reason is:

Assertion Failure: UI Testing Failure – No matches found for “userBarButtonItem” Other

有没有办法如何使用谓词来找到它？

解决方法

这对我有用：

self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:UIString(@"Sign In") style:UIBarButtonItemStyleDone target:self action:@selector(submitpressed:)];

 self.navigationItem.rightBarButtonItem.accessibilityLabel = @"registration-submit-button";

然后我发现了它

app.navigationBars.buttons["registration-submit-button"]