public async Task Set_State_Raises_NavigationStateChangedEvent() { var tcs = new TaskCompletionSource<bool>(); var eventAggregator = new EventAggregator(); eventAggregator.GetEvent<NavigationStateChangedEvent>().Subscribe((args) => tcs.SetResult(true)); await DispatcherHelper.ExecuteOnUIThread(() => { var frame = new FrameFacadeAdapter(new Frame(), eventAggregator); frame.SetNavigationState("1,0"); }); await Task.WhenAny(tcs.Task, Task.Delay(200)); if (tcs.Task.IsCompleted) { Assert.IsTrue(tcs.Task.Result); } else { Assert.Fail("NavigationStateChangedEvent event wasn't raised within 200 ms."); } }
public async Task Restore_State_Back_Button_Visible() { await DispatcherHelper.ExecuteOnUIThread(() => { var eventAggregator = new EventAggregator(); var frame = new FrameFacadeAdapter(new Frame(), eventAggregator); var sessionStateService = new MockSessionStateService(); sessionStateService.GetSessionStateForFrameDelegate = (currentFrame) => new Dictionary<string, object>(); var navigationService = new FrameNavigationService(frame, (pageToken) => typeof(MockPage), sessionStateService); var deviceGestureService = new DeviceGestureService(eventAggregator); deviceGestureService.UseTitleBarBackButton = true; var navigationManager = SystemNavigationManager.GetForCurrentView(); // Reset back button visibility before running, can't do this in TestInitialize because CoreWindow sometimes isn't ready SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Collapsed; Assert.AreEqual(AppViewBackButtonVisibility.Collapsed, navigationManager.AppViewBackButtonVisibility); frame.SetNavigationState("1,2,1,34,Prism.Windows.Tests.Mocks.MockPage,4,1,1,0,34,Prism.Windows.Tests.Mocks.MockPage,4,1,2,0"); Assert.AreEqual(AppViewBackButtonVisibility.Visible, navigationManager.AppViewBackButtonVisibility); }); }