Swift2 UI Test - Wait for Element to Appear

Question

I want to have a test pause and wait for an element to appear on screen before proceeding.

I don\'t see a good way to create an expectation for this and wait using

Answer 1

You can use this, in Swift 3

func wait(element: XCUIElement, duration: TimeInterval) {
  let predicate = NSPredicate(format: "exists == true")
  let _ = expectation(for: predicate, evaluatedWith: element, handler: nil)

  // We use a buffer here to avoid flakiness with Timer on CI
  waitForExpectations(timeout: duration + 0.5)
}

In Xcode 9, iOS 11, you can use the new API waitForExistence