public async void Navigate_ToContentPage_ViewModelHasIConfirmNavigation_True()
{
var navigationService = new PageNavigationServiceMock(_container);
var rootPage = new Xamarin.Forms.ContentPage()
{
BindingContext = new ContentPageMockViewModel()
};
((IPageAware)navigationService).Page = rootPage;
var viewModel = rootPage.BindingContext as ContentPageMockViewModel;
Assert.False(viewModel.OnConfirmNavigationCalled);
await navigationService.Navigate("ContentPage");
Assert.True(rootPage.Navigation.ModalStack.Count == 1);
Assert.NotNull(viewModel);
Assert.True(viewModel.OnConfirmNavigationCalled);
}
public async void NavigateAsync_ToContentPage_ThenGoBack()
{
var pageMock = new ContentPageMock();
var navigationService = new PageNavigationServiceMock(_container);
((IPageAware)navigationService).Page = pageMock;
var rootPage = new NavigationPage(pageMock);
Assert.IsType(typeof(ContentPageMock), rootPage.CurrentPage);
await navigationService.Navigate("TabbedPage");
Assert.True(rootPage.Navigation.NavigationStack.Count == 2);
Assert.IsType(typeof(TabbedPageMock), rootPage.CurrentPage);
await navigationService.GoBack();
Assert.True(rootPage.Navigation.NavigationStack.Count == 1);
Assert.IsType(typeof(ContentPageMock), rootPage.CurrentPage);
}
public async void Navigate_ToContentPage_ViewModelHasIConfirmNavigation_False()
{
var navigationService = new PageNavigationServiceMock(_container);
var rootPage = new ContentPage()
{
BindingContext = new ContentPageMockViewModel()
};
((IPageAware)navigationService).Page = rootPage;
var viewModel = rootPage.BindingContext as ContentPageMockViewModel;
Assert.False(viewModel.OnConfirmNavigationCalled);
var navParams = new NavigationParameters();
navParams.Add("canNavigate", false);
await navigationService.Navigate("ContentPage", navParams);
Assert.True(viewModel.OnConfirmNavigationCalled);
Assert.True(rootPage.Navigation.ModalStack.Count == 0);
}
public async void Navigate_ToContentPage_ViewModelHasINavigationAware()
{
var navigationService = new PageNavigationServiceMock(_container);
var rootPage = new Xamarin.Forms.ContentPage();
((IPageAware)navigationService).Page = rootPage;
await navigationService.Navigate("ContentPage");
Assert.True(rootPage.Navigation.ModalStack.Count == 1);
Assert.IsType(typeof(ContentPageMock), rootPage.Navigation.ModalStack[0]);
var viewModel = rootPage.Navigation.ModalStack[0].BindingContext as ContentPageMockViewModel;
Assert.NotNull(viewModel);
Assert.True(viewModel.OnNavigatedToCalled);
var nextPageNavService = new PageNavigationServiceMock(_container);
((IPageAware)navigationService).Page = rootPage.Navigation.ModalStack[0];
await navigationService.Navigate("NavigationPage");
Assert.True(viewModel.OnNavigatedFromCalled);
}
public async void Navigate_ToContentPage_ByName_WithNavigationParameters()
{
var navigationService = new PageNavigationServiceMock(_container);
var rootPage = new Xamarin.Forms.ContentPage();
((IPageAware)navigationService).Page = rootPage;
var navParameters = new NavigationParameters();
navParameters.Add("id", 3);
await navigationService.Navigate("ContentPage", navParameters);
Assert.True(rootPage.Navigation.ModalStack.Count == 1);
Assert.IsType(typeof(ContentPageMock), rootPage.Navigation.ModalStack[0]);
var viewModel = rootPage.Navigation.ModalStack[0].BindingContext as ContentPageMockViewModel;
Assert.NotNull(viewModel);
Assert.NotNull(viewModel.NavigatedToParameters);
Assert.True(viewModel.NavigatedToParameters.Count > 0);
Assert.Equal(3, viewModel.NavigatedToParameters["id"]);
}
public void Navigate_ToNavigatonPage_ViewModelHasINavigationAware()
{
var navigationService = new PageNavigationServiceMock(_container);
var rootPage = new Xamarin.Forms.ContentPage();
((IPageAware)navigationService).Page = rootPage;
navigationService.Navigate("NavigationPage");
Assert.True(rootPage.Navigation.ModalStack.Count == 1);
Assert.IsType(typeof(NavigationPageMock), rootPage.Navigation.ModalStack[0]);
var viewModel = rootPage.Navigation.ModalStack[0].BindingContext as NavigationPageMockViewModel;
Assert.NotNull(viewModel);
Assert.True(viewModel.OnNavigatedToCalled);
//var navPage = rootPage.Navigation.ModalStack[0] as NavigationPage;
//Assert.NotNull(navPage.CurrentPage);
//var childViewModel = navPage.CurrentPage.BindingContext as ContentPageMockViewModel;
//Assert.NotNull(childViewModel);
//Assert.True(childViewModel.OnNavigatedToCalled);
}
public async Task GoBackToRootAsync_PopsToRoot_INavigationAware_Destroy()
{
var recorder = new PageNavigationEventRecorder();
var navigationService = new PageNavigationServiceMock(null, null, null);
var rootPage = new Xamarin.Forms.NavigationPage();
((IPageAware)navigationService).Page = rootPage;
var page1 = new ContentPageMock(recorder)
{
Title = "Page 1"
};
await rootPage.Navigation.PushAsync(page1);
var page2 = new ContentPageMock(recorder)
{
Title = "Page 2"
};
var page2ViewModel = page2.BindingContext;
await rootPage.Navigation.PushAsync(page2);
var page3 = new ContentPageMock(recorder)
{
Title = "Page 3"
};
var page3ViewModel = page3.BindingContext;
await rootPage.Navigation.PushAsync(page3);
var page4 = new ContentPageMock(recorder)
{
Title = "Page 4"
};
var page4ViewModel = page4.BindingContext;
await rootPage.Navigation.PushAsync(page4);
Assert.True(rootPage.Navigation.NavigationStack.Count == 4);
await navigationService.GoBackToRootAsync();
Assert.Equal(1, rootPage.Navigation.NavigationStack.Count);
Assert.Equal(page1, rootPage.Navigation.NavigationStack[0]);
Assert.Equal(16, recorder.Records.Count);
//root
var record = recorder.TakeFirst();
Assert.Equal(page1, record.Sender);
Assert.Equal(PageNavigationEvent.OnNavigatingTo, record.Event);
record = recorder.TakeFirst();
Assert.Equal(page1.BindingContext, record.Sender);
Assert.Equal(PageNavigationEvent.OnNavigatingTo, record.Event);
//page 4
record = recorder.TakeFirst();
Assert.Equal(page4, record.Sender);
Assert.Equal(PageNavigationEvent.OnNavigatedFrom, record.Event);
record = recorder.TakeFirst();
Assert.Equal(page4ViewModel, record.Sender);
Assert.Equal(PageNavigationEvent.OnNavigatedFrom, record.Event);
record = recorder.TakeFirst();
Assert.Equal(page4, record.Sender);
Assert.Equal(PageNavigationEvent.Destroy, record.Event);
record = recorder.TakeFirst();
Assert.Equal(page4ViewModel, record.Sender);
Assert.Equal(PageNavigationEvent.Destroy, record.Event);
//page 3
record = recorder.TakeFirst();
Assert.Equal(page3, record.Sender);
Assert.Equal(PageNavigationEvent.OnNavigatedFrom, record.Event);
record = recorder.TakeFirst();
Assert.Equal(page3ViewModel, record.Sender);
Assert.Equal(PageNavigationEvent.OnNavigatedFrom, record.Event);
record = recorder.TakeFirst();
Assert.Equal(page3, record.Sender);
Assert.Equal(PageNavigationEvent.Destroy, record.Event);
record = recorder.TakeFirst();
Assert.Equal(page3ViewModel, record.Sender);
Assert.Equal(PageNavigationEvent.Destroy, record.Event);
//page 2
record = recorder.TakeFirst();
Assert.Equal(page2, record.Sender);
Assert.Equal(PageNavigationEvent.OnNavigatedFrom, record.Event);
record = recorder.TakeFirst();
Assert.Equal(page2ViewModel, record.Sender);
Assert.Equal(PageNavigationEvent.OnNavigatedFrom, record.Event);
record = recorder.TakeFirst();
Assert.Equal(page2, record.Sender);
Assert.Equal(PageNavigationEvent.Destroy, record.Event);
record = recorder.TakeFirst();
Assert.Equal(page2ViewModel, record.Sender);
Assert.Equal(PageNavigationEvent.Destroy, record.Event);
//root
record = recorder.TakeFirst();
Assert.Equal(page1, record.Sender);
Assert.Equal(PageNavigationEvent.OnNavigatedTo, record.Event);
record = recorder.TakeFirst();
Assert.Equal(page1.BindingContext, record.Sender);
Assert.Equal(PageNavigationEvent.OnNavigatedTo, record.Event);
}
