How to tap correct SKSpriteNode in automated test? - ios

Question

How to tap the correct SKSpriteNode in my iOS game created in swift (XCode 7, SpriteKit)? Finding the node seems not to be the issue, since in the test, 'exists' returns true. When I change my test to "app.tap()" then it does work. Except I have multiple SKSpriteNodes, so this does not solve my problem.
Below you can find code snippets. I hope you can help me with my problem. Any suggestions/hints are welcome.
Code snippet from my SKScene:
override func didMoveToView(view: SKView) {
var newGameButton : SKSpriteNode!
newGameButton = SKSpriteNode(imageNamed: "button")
newGameButton.position = CGPointMake(CGRectGetMidX(self.frame), CGRectGetMidY(self.frame)+5)
newGameButton.size = CGSizeMake(200.0, 40.0)
newGameButton.name = "newGame"
newGameButton.isAccessibilityElement = true
newGameButton.userInteractionEnabled = true
newGameButton.accessibilityLabel = "newGame"
self.addChild(newGameButton)
}
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
let touch = touches.first as UITouch!
let location = touch.locationInNode(self)
let nodes = self.nodesAtPoint(location)
for node in nodes {
if (node.name == "newGame") {
viewController.beginNewGame()
break
}
}
}
Current setup in UITest:
import XCTest
class MemoryPlayUITests: XCTestCase {
override func setUp() {
super.setUp()
continueAfterFailure = false
XCUIApplication().launch()
}
override func tearDown() {
super.tearDown()
}
func testStartNewGame() {
let app = XCUIApplication()
let newGameButton = app.otherElements["newGame"]
XCTAssertEqual(newGameButton.label, "newGame")
XCTAssertTrue(newGameButton.exists)
newGameButton.tap()
...{test logic to test if new game is started}
}
}