waitToDisappear Swift UI Test

waitToDisappear.swift

func waitToDisappear(_ element: XCUIElement, timeout: TimeInterval) -> Bool {
    let startTime = Date().timeIntervalSinceReferenceDate
    let remainingTime = { () -> Double in 
        let diff = timeout - (Date().timeIntervalSinceReferenceDate - startTime)
        return diff > 0 ? diff : 0
    }
    repeat {
        if !element.exists || !element.isHittable {
            return true
        }
        sleep(1)
    }
    while remainingTime() > 0
    return false
}