Xcode UI 测试 - UI 测试失败 - 点击搜索字段“取消"按钮时无法滚动到可见(通过 AX 操作) [英] Xcode UI test - UI Testing Failure - Failed to scroll to visible (by AX action) when tap on Search field "Cancel' button

问题描述

我试图通过点击搜索栏中的取消"按钮来关闭搜索字段.

I am trying to dismiss the search field by tapping 'Cancel' button in search bar.

测试用例找不到取消按钮.它在 Xcode 7.0.1 中运行良好

The test case is failing to find the cancel button. It was working fine in Xcode 7.0.1

我添加了谓词以等待按钮出现.当我们点击取消"按钮时，测试用例失败

I have added predicate to wait for button to appear. The test case is failing when we tap of "cancel" button

let button = app.buttons["Cancel"]
let existsPredicate = NSPredicate(format: "exists == 1")

expectationForPredicate(existsPredicate, evaluatedWithObject: button, handler: nil)
waitForExpectationsWithTimeout(5, handler: nil)

button.tap() // Failing here

日志:

    t =     7.21s     Tap SearchField
t =     7.21s         Wait for app to idle
t =     7.29s         Find the SearchField
t =     7.29s             Snapshot accessibility hierarchy for com.test.mail
t =     7.49s             Find: Descendants matching type SearchField
t =     7.49s             Find: Element at index 0
t =     7.49s             Wait for app to idle
t =     7.55s         Synthesize event
t =     7.84s         Wait for app to idle
t =     8.97s     Type '[e-mail]' into
t =     8.97s         Wait for app to idle
t =     9.03s         Find the "Search" SearchField
t =     9.03s             Snapshot accessibility hierarchy for com.test.mail
t =     9.35s             Find: Descendants matching type SearchField
t =     9.35s             Find: Element at index 0
t =     9.36s             Wait for app to idle
t =     9.42s         Synthesize event
t =    10.37s         Wait for app to idle
t =    10.44s     Check predicate `exists == 1` against object `"Cancel" Button`
t =    10.44s         Snapshot accessibility hierarchy for com.test.mail
t =    10.58s         Find: Descendants matching type Button
t =    10.58s         Find: Elements matching predicate '"Cancel" IN identifiers'
t =    10.58s     Tap "Cancel" Button
t =    10.58s         Wait for app to idle
t =    10.64s         Find the "Cancel" Button
t =    10.64s             Snapshot accessibility hierarchy for com.test.mail
t =    10.78s             Find: Descendants matching type Button
t =    10.78s             Find: Elements matching predicate '"Cancel" IN identifiers'
t =    10.79s             Wait for app to idle
t =    11.08s         Synthesize event
t =    11.13s             Scroll element to visible
t =    11.14s             Assertion Failure: UI Testing Failure - Failed to scroll to visible (by AX action) Button 0x7f7fcaebde40: traits: 8589934593, {{353.0, 26.0}, {53.0, 30.0}}, label: 'Cancel', error: Error -25204 performing AXAction 2003

推荐答案

我猜这里的取消"按钮为 hittable 属性返回 false ，这是阻止它点击.

I guess here "Cancel" button returns false for hittable property, that is preventing it from tapping.

如果你在文档中看到 tap() 它说

If you see tap() in documentation it says

/*!
 * Sends a tap event to a hittable point computed for the element.
 */
- (void)tap;

XCode 7.1 似乎坏了.以下内容可以帮助您.

It seems things are broken with XCode 7.1.To keep myself (and u too ;)) unblocked from these issues I wrote a extension on XCUIElement that allows tap on element even if it is not hittable. Following can help you.

/*Sends a tap event to a hittable/unhittable element.*/
extension XCUIElement {
    func forceTapElement() {
        if self.hittable {
            self.tap()
        }
        else {
            let coordinate: XCUICoordinate = self.coordinateWithNormalizedOffset(CGVectorMake(0.0, 0.0))
            coordinate.tap()
        }
    }
}

现在你可以调用了

button.forceTapElement()

更新 - 对于 swift 3 使用以下内容:

Update - For swift 3 use following:

extension XCUIElement {
    func forceTapElement() {
        if self.isHittable {
            self.tap()
        }
        else {
            let coordinate: XCUICoordinate = self.coordinate(withNormalizedOffset: CGVector(dx:0.0, dy:0.0))
            coordinate.tap()
        }
    }
}

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