时间戳事件匹配错误: 找不到匹配元素

我试图在 Xcode 生成一个用户界面，当我试图滑动用户界面时，我得到了 一个错误:

Timestamped Event Matching Error: Failed to find matching element

错误窗口

enter image description here

如果我尝试点击 UIView，也会发生这种情况。

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For recording a new test, I don't think there's a solution yet. But, if you use an extension forcing tap with a test that already exists, works.

Example of use:

extension XCUIElement {


func forceTapElement() {
if self.hittable {
self.tap()
}
else {
let coordinate: XCUICoordinate = self.coordinateWithNormalizedOffset(CGVectorMake(0.0, 0.0))
coordinate.tap()
}
}
}


func testSomethingWithCells() {


let app = XCUIApplication()
let cells = app.tables.cells
sleep(1)
cells.elementBoundByIndex(0).forceTapElement()
}

You can check the original post here:

Xcode UI test - UI Testing Failure - Failed to scroll to visible (by AX action) when tap on Search field "Cancel' button

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最佳答案

You should verify that the 'Accessibility' option is enabled for the UIView object you are swiping from, for example:

enter image description here

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I've been occasionally running into this problem. Delete the app's directory from DerivedData seems to help.

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A solution that worked for myself was to identify the object differently.
In Xcode 8 I was able to use the following:

XCUIApplication().tables.cells["Camera Roll"].buttons["Camera Roll"].tap()

With Xcode 9 I got the error mentioned in this question. Ended up using the following, which worked (al beit more flakey than the original option)

XCUIApplication().cells.element(boundBy: 1).tap()
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In Xcode 9.3, where this is apparently still a problem, what I did was:

  • Quit Xcode
  • Reset the Simulator's settings (Hardware -> Erase all contents and settings)
  • Quit the Simulator
  • Delete the derived data for the current app
  • Restart Xcode
  • Try recording again - it worked this time for me.
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Usually this issue is observed when the parent element of the element yo want to record is set to isAccessibilityElement = true. In general, you have to have the parent element set to false to access the child element.

For example: if you have a UILabel inside a view, the accessibility should be set to false for the view and set to true for the UILabel.

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Even if you have Accessibility enabled for the element, you have to make sure that it has a unique accessibility identifier. In my case, I had copied & pasted a UISwitch and assigned a different outlet to it, but it kept the same accessibility ID as the original one.


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