如果测试失败，有人可以帮我做些什么 与kGREYPendingViewsToDisappear出现在以下情况下
代码
EarlGrey.selectElement（with：grey_keyWindow（））。assert（grey_sufficientlyVisible（））
例外
UI测试活动： 断言失败：EarlGreyTests.swift：27：异常：TimeoutException
异常名称：TimeoutException 异常原因：等待执行声明时超时。 断言例外：{ “ Assertion Criteria”：“ assertWithMatcher：matcherForSufficientlyVisible（> = 0.750000）”， “元素匹配器”：“（kindOfClass（'UIWindow'）&& keyWindow）” }
异常详细信息：错误跟踪：[ { “ Description”：“由于下面的空闲资源繁忙，无法执行块。”， “说明词汇表”：{ “ GREYAppStateTracker”：“正在等待viewDidDisappear：在视图控制器上调用。请确保此视图控制器及其子类调用其超级实现。
所有对象的全状态转换调用堆栈： =>等待viewDidDisappear：在视图控制器上调用。请确保此视图控制器及其子类调用其上级的实现。 （ 0 EarlGrey 0x0000000133ea1d3d-[GREYAppStateTrackerObject setState：] + 61 1 EarlGrey 0x0000000133e49685 _133- [GREYAppStateTracker grey_changeState：usingOperation：forObject：orInternalObjectDeallocationTracker：orExternalAppStateTrackerObject：] _ block_invoke + 1157 2 EarlGrey 0x0000000133e48858-[GREYAppStateTracker grey_performBlockInCriticalSection：] + 328 3 EarlGrey 0x0000000133e490ab-[GREYAppStateTracker grey_changeState：usingOperation：forObject：orInternalObjectDeallocationTracker：orExternalAppStateTrackerObject：] + 1371 4 EarlGrey 0x0000000133e4710c-[GREYAppStateTracker untrackState：forObject：] + 92 5 EarlGrey 0x0000000133e4dea7-[UIViewController（GREYAdditions）greyswizzled_viewDidAppear：] + 135 6 EarlGreyTests 0x0000000133bf86c6-[UIViewController（FIRAScreenClassName）fira_viewDidAppear：] + 33 7 UIKit 0x0000000136d4a9ae-[UIViewControllerAccessibility viewDidAppear：] + 67 8 UIKit 0x0000000110ee1e5f-[UIViewController _setViewAppearState：isAnimating：] + 697 9 UIKit 0x0000000110ee23ad _52- [UIViewController _setViewAppearState：isAnimating：] _ block_invoke + 265 10 CoreFoundation 0x0000000115310553-[_ NSArrayI enumerateObjectsWithOptions：usingBlock：] + 163 11 UIKit 0x0000000110ee2067-[UIViewController _setViewAppearState：isAnimating：] + 1217 12 UIKit 0x0000000110ee23ad _52- [UIViewController _setViewAppearState：isAnimating：] _ block_invoke + 265 13 CoreFoundation 0x00000001153c256a-[_ NSSingleObjectArrayI enumerateObjectsWithOptions：usingBlock：] + 58 14 UIKit 0x0000000110ee2067-[UIViewController _setViewAppearState：isAnimating：] + 1217 15 UIKit 0x0000000110ee28f0-[UIViewController _endAppearanceTransition：] + 197 16 UIKit 0x0000000110f1aebd-[UINavigationController navigationTransitionView：didEndTransition：fromView：toView：] + 1287 17 UIKit 0x0000000136d611aa-[UINavigationControllerAccessibility navigationTransitionView：didEndTransition：fromView：toView：] + 102 18 UIKit 0x0000000111296db1-[UINavigationTransitionView _notifyDelegateTransitionDidStopWithContext：] + 421 19 UIKit 0x0000000111297072-[UINavigationTransitionView _cleanupTransition] + 605 20 UIKit 0x0000000110dccea9-[UIViewAnimationState sendDelegateAnimationDidStop：完成：] + 343 21 UIKit 0x0000000110dc8546 + [UIViewAnimationState popAnimationState] + 319 22 UIKit 0x0000000111296b20-[UINavigationTransitionView transition：fromView：toView：] + 2571 23 UIKit 0x0000000110f2411f-[UINavigationController _startTransition：fromViewController：toViewController：] + 3261 24 UIKit 0x0000000110f2461e-[UINavigationController _startDeferredTransitionIfNeeded：] + 870 25 UIKit 0x0000000110f2586c-[UINavigationController _viewWillLayoutSubviews] + 150 26 UIKit 0x000000011117dd0b-[UILayoutContainerView layoutSubviews] + 231 27 UIKit 0x0000000136d7e61c-[UILayoutContainerViewAccessibility layoutSubviews] + 42 28 UIKit 0x0000000110e077a8-[UIView（CALayerDelegate）layoutSublayersOfLayer：] + 1515 29 QuartzCore 0x00000001161bd456-[CALayer layoutSublayers] + 177 30 QuartzCore 0x00000001161c1667 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 395 31 QuartzCore 0x00000001161480fb _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 343 32 QuartzCore 0x000000011617579c _ZN2CA11Transaction6commitEv + 568 33 UIKit 0x0000000110d52269 _34- [UIApplication _firstCommitBlock] _block_invoke_2 + 141 34 CoreFoundation 0x0000000115324b0c _CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK_ + 12 35 CoreFoundation 0x00000001153092db _CFRunLoopDoBlocks + 331 36 CoreFoundation 0x0000000115308a84 _CFRunLoopRun + 1284 37 CoreFoundation 0x000000011530830b CFRunLoopRunSpecific + 635 38图形服务0x000000011a536a73 GSEventRunModal + 62 39 UIKit 0x0000000110d38057 UIApplicationMain + 159 40 MyApp 0x000000010e56c9b7主+ 55 41 libdyld.dylib 0x0000000117a65955开始+ 1 ） ” }， “错误域”：“ com.google.earlgrey.GREYUIThreadExecutorErrorDomain”， “错误代码”：“ 0”， “文件名”：“ GREYUIThreadExecutor.m”， “ Function Name”：“-[[GREYUIThreadExecutor executeSyncWithTimeout：block：error：]”， “行”：“ 239”， “ TestCase类”：“ EarlGreyTests.EarlGreyTests”， “ TestCase方法”：“ testExample” }， { “ Description”：“无法在30秒内执行断言。”， “错误域”：“ com.google.earlgrey.ElementInteractionErrorDomain”， “错误代码”：“ 4”， “文件名”：“ GREYElementInteraction.m”， “ Function Name”：“-[[GREYElementInteraction assert：error：]”， “行”：“ 450”， “ TestCase类”：“ EarlGreyTests.EarlGreyTests”， “ TestCase方法”：“ testExample” } ]
无法解决的问题
在feedItemCollectionViewController中添加viewDidDisappear