public void TestDialog_GoBack()
{
var pageDialogServiceMock = new Mock <IPageDialogService>();
pageDialogServiceMock.Setup(m => m.DisplayAlertAsync(It.IsAny <string>(), It.IsAny <string>(), It.IsAny <string>(), It.IsAny <string>()))
.Returns(Task.FromResult(true));
var navServiceMock = new Mock <INavigationService>();
int numberOfCalls = 0;
INavigationParameters actualNavParams = null;
TestableNavigation.TestableGoBackAsyncWithParams = (navSvc, navParams, isModal, isAnimated) =>
{
++numberOfCalls;
actualNavParams = navParams;
return(Task.FromResult <INavigationResult>(null));
};
var thirdPage = new ThirdPageViewModel(navServiceMock.Object, pageDialogServiceMock.Object);
thirdPage.OnNavigatedTo(new NavigationParameters("?action=go back"));
Assert.AreEqual(1, numberOfCalls);
Assert.AreEqual("go back", actualNavParams["action"]);
}
public ThirdPage()
{
InitializeComponent();
BindingContext = _ViewModel = new ThirdPageViewModel();
}
