Earlgrey 我的应用程序显示一个启动屏幕。如何让测试等待主屏幕？

我的应用程序显示一个启动屏幕。如何使测试等待主屏幕出现？没有等待，我的测试在应用程序启动后立即失败

// in application:didFinishLaunchingWithOptions: of my AppDelegate...
SplashViewController *splashVC = [[SplashViewController alloc] init];
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.window.rootViewController = splashVC;
[self.window makeKeyAndVisible];

NSTimeInterval splashScreenDuration = 0.5;
[NSTimer scheduledTimerWithTimeInterval:splashScreenDuration
                               target:self
                             selector:@selector(hideSpashScreenAndDisplayMainViewController)
                             userInfo:nil
                              repeats:NO];

// hideSpashScreenAndDisplayMainViewController method simply sets self.window.rootViewController to the main view controller.

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EarlGrey

提供了API，您可以在设置方法或特定测试开始时使用该API，使EarlGrey在等待启动屏幕消失时等待。您可以使用类似于他们的应用程序中的代码来实现这一点

//等待主视图控制器成为根视图控制器。
BOOL success=[[GREYCondition conditionWithName:@“等待主根视图控制器”
区块：^{
id appDelegate=[UIApplication sharedApplication]。委托；
UIViewController*rootViewController=appDelegate.window.rootViewController；
return[rootViewController isKindOfClass:[MainViewController类]]；
}]waitWithTimeout:5]；
GREYAssertTrue（成功，@“主视图控制器应在5秒内出现”）；

您能提供一段测试代码吗？

// Wait for the main view controller to become the root view controller.
  BOOL success = [[GREYCondition conditionWithName:@"Wait for main root view controller"
                                             block:^{
    id<UIApplicationDelegate> appDelegate = [UIApplication sharedApplication].delegate;
    UIViewController *rootViewController = appDelegate.window.rootViewController;
    return [rootViewController isKindOfClass:[MainViewController class]];
  }] waitWithTimeout:5];

  GREYAssertTrue(success, @"Main view controller should appear within 5 seconds.");