public void DialogManagerViewModelHelper_Direct_Property_Injection_Without_View_Does_Nothing()
{
var view = (FrameworkElement)null;
var viewModel = new DialogManagerViewModelWithSetableProperty();
var dialogAssemblyViewProvider = Mock.Of <DialogAssemblyViewProvider>();
var viewProvider = Mock.Of <IViewProvider>();
_ = new DialogManager(dialogAssemblyViewProvider, viewProvider);
// Act
Mock.Get(viewProvider).Raise(provider => provider.ViewLoaded += null, new ViewLoadedEventArgs(viewModel, view));
// Assert
Assert.Null(viewModel.DialogManager);
}
public void DialogManagerViewModelHelper_Direct_Property_Injection_Succeeds()
{
// Arrange
var view = new Window();
var viewModel = new DialogManagerViewModelWithSetableProperty();
var dialogAssemblyViewProvider = Mock.Of <DialogAssemblyViewProvider>();
var viewProvider = Mock.Of <IViewProvider>();
_ = new DialogManager(dialogAssemblyViewProvider, viewProvider);
// Act
Mock.Get(viewProvider).Raise(provider => provider.ViewLoaded += null, new ViewLoadedEventArgs(viewModel, view));
// Assert
Assert.NotNull(viewModel.DialogManager);
Assert.That(viewModel.DialogManager.IsInitialized, Is.False);
view.RaiseEvent(new RoutedEventArgs(FrameworkElement.LoadedEvent));
Assert.That(viewModel.DialogManager.IsInitialized, Is.True);
}
public void DialogManagerViewModelHelper_Just_Initializes_Existing_DialogManager()
{
var view = new Window();
var viewModel = new DialogManagerViewModelWithSetableProperty();
var dialogAssemblyViewProvider = Mock.Of <DialogAssemblyViewProvider>();
var viewProvider = Mock.Of <IViewProvider>();
var dialogManager = new DialogManager(dialogAssemblyViewProvider, viewProvider);
viewModel.DialogManager = dialogManager; //! Pre-Initialize the property.
// Act
Mock.Get(viewProvider).Raise(provider => provider.ViewLoaded += null, new ViewLoadedEventArgs(viewModel, view));
// Assert
Assert.NotNull(viewModel.DialogManager);
Assert.That(viewModel.DialogManager, Is.EqualTo(dialogManager)); // The DialogManager property must still be the same instance, since the helper should only initialize it.
Assert.That(viewModel.DialogManager.IsInitialized, Is.False);
view.RaiseEvent(new RoutedEventArgs(FrameworkElement.LoadedEvent)); // Make this view already loaded.
Assert.That(viewModel.DialogManager.IsInitialized, Is.True);
}
