Xcode UITesting - how to move UISlider?

Question

Is there a way to move UISlider under UITests target in Xcode? I really need to move it from code. Is it possible?

Answer 1

1. Get your slider:

   let app = XCUIApplication()
   let timeSlider = app.sliders["timeSlider"]
   

2. Adjust its value:

   timeSlider.adjustToNormalizedSliderPosition(0.9)
   

Answer 2

I made this extension based on this answer to fix the adjustToNormalizedSliderPosition problem.

import XCTest

extension XCUIElement {

    open func adjust(toNormalizedSliderValue normalizedSliderValue: CGFloat) {
        let start = coordinate(withNormalizedOffset: CGVector(dx: 0.0, dy: 0.0))
        let end = coordinate(withNormalizedOffset: CGVector(dx: normalizedSliderValue, dy: 0.0))
        start.press(forDuration: 0.05, thenDragTo: end)
    }

}

Then you only have to call instead:

app.sliders["Your Slider Identifier"].adjust(toNormalizedSliderValue: 0.5)

Here you can find some other useful tips for Xcode UITesting:

https://github.com/joemasilotti/UI-Testing-Cheat-Sheet

Answer 3

I wasn't able to get adjustToNormalizedSliderPosition to work with my app's slider. I've seen some people posting online that it also didn't work for them. Is it working for others here?

A less useful method to adjust a slider is to find the element, press for a duration, then drag to another element:

slider.pressForDuration(duration: 0.05, thenDragToElement: anotherElement)

Answer 4

Swift 4.2+

@bartłomiej-semańczyk answer, modified a little bit like this:

1. Get your slider:

    let app = XCUIApplication()
    let timeSlider = app.sliders["timeSlider"]

2. Adjust its value:

    timeSlider.adjust(toNormalizedSliderPosition: 0.9)

Note: The number is CGFloat and it is between 0 and 1. If your UISlider minimum and maximum value is not 0 to 1 you have to convert it first like this:

    let numberBetween01 = CGFloat((requestedVal - UISlider.minimumValue ) / UISlider.maximumValue - UISlider.minimumValue))

Answer 5

How to move UISlider to Right ➡️

  static func moveSliderToRight(element: XCUIElement){
  _ =  element.waitForExistence(timeout: 10)
    element.adjust(toNormalizedSliderPosition: 1)
}

How to move UISlider to Left ⬅️

  static func moveSliderToRight(element: XCUIElement){
  _ =  element.waitForExistence(timeout: 10)
    element.adjust(toNormalizedSliderPosition: 0)
}