ios - 使用 OCUnit 对 keyWindow 进行单元测试会抛出错误

Question

我想在启动后测试我的应用委托(delegate)制作窗口作为关键窗口。所以我编写了以下测试。

- (void)setUp
{
    window = [[UIWindow alloc] init];
    appDelegate = [[FGAppDelegate alloc] init];
    appDelegate.window = window;
    appDidFinishLaunchingReturn = [appDelegate application: nil didFinishLaunchingWithOptions:nil];
}

- (void)tearDown
{
    window = nil;
    appDelegate = nil;
}
- (void)testWindowIsKeyAfterApplicationLaunch
{
    STAssertTrue(window.keyWindow, @"App delegate's window should be key.");
}

在我的应用程序中委托(delegate)方法 applicaton:didFinishLaunchingWithOptions:

  ...
  self.window.rootViewController = self.tabBarController;
  [self.window makeKeyAndVisible];
  return YES;
}

测试失败并告诉我 window.keyWindow 应该是真的。有什么不对的吗？我该如何修复测试？

Answer 1

我想这与我的问题 iOS unit test: How to set/update/examine firstResponder? 类似键窗口的实际激活可能是在主运行循环中发生的事情。为了让它有机会运行，请尝试在您的测试中调用它:

- (void)runForShortTime
{
    [[NSRunLoop currentRunLoop] runUntilDate:[NSDate date]];
}