Dmitry Sokurenko Dmitry Sokurenko - 4 months ago 18x
iOS Question

How to tap on a specific point using Xcode UITests

I want to use Xcode UI tests with the Fastline Snapshot to make screenshots of the Cordova app. Basically, as my entire app is just a web view, all the xcode UI test helper methods become irrelevant, and I just want to tap on specific points, e.g.

tap(x: 10, y: 10)
should produce a tap at the point
{10px; 10px}

That's probably very simple, but I can't figure out how to do it.



You can tap a specific point with the XCUICoordinate API. Unfortunately you can't just say "tap 10,10" referencing a pixel coordinate. You will need to create the coordinate with a relative offset to an actual view.

We can use the mentioned web view to interact with the relative coordinate.

let app = XCUIApplication()
let webView = app.webViews.element
let coordinate = webView.coordinateWithNormalizedOffset(CGVector(dx: 10, dy: 10))

Side note, but have you tried interacting with the web view directly? I've had a lot of success using app.links["Link title"].tap() or app.staticTexts["A different link title"].tap(). Here's a demo app I put together demonstrating interacting with a web view.

Update: As Michal W. pointed out in the comments, you can now tap a coordinate directly, without worrying about normalizing the offset.

let normalized = webView.coordinateWithNormalizedOffset(CGVector(dx: 0, dy: 0))
let coordinate = normalized.coordinateWithOffset(CGVector(dx: 10, dy: 10))

Notice that I pass 0,0 to the normalized vector and then the actual point, 10,10, to the second call.