我發現了一個非常方便的方法來使非交互式零件起作用:使用函數Windows.ApplicationModel.Core.CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync
。
很明顯,對嗎?但是,這仍然留下了如何模擬用戶操作的問題。
/// Runs an action on the UI thread, and blocks on the result
private static void Ui(Action action) {
Windows.ApplicationModel.Core.CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(
CoreDispatcherPriority.Normal,
() => action()
).AsTask().Wait();
}
/// Evaluates a function on the UI thread, and blocks on the result
private static T Ui<T>(Func<T> action) {
var result = default(T);
Ui(() => { result = action(); });
return result;
}
[TestMethod]
public void SliderTest() {
// constructing a Slider control is only allowed on the UI thread, so wrap it in UI
var slider = Ui(() => new Slider());
var expected = 0;
// accessing control properties is only allowed on the UI thread, so same deal
Assert.AreEqual(expected, Ui(() => slider.Value));
}