public void WhenArticleViewModelSelectedArticleChanged_NewsReaderViewModelNewsArticleUpdated()
{
// Prepare
INewsFeedService newsFeedService = new Mock<INewsFeedService>().Object;
IRegionManager regionManager = new Mock<IRegionManager>().Object;
var tickerSymbolSelectedEvent = new Mock<TickerSymbolSelectedEvent>().Object;
var mockEventAggregator = new Mock<IEventAggregator>();
mockEventAggregator.Setup(x => x.GetEvent<TickerSymbolSelectedEvent>()).Returns(tickerSymbolSelectedEvent);
IEventAggregator eventAggregator = mockEventAggregator.Object;
ArticleViewModel articleViewModel = new ArticleViewModel(newsFeedService, regionManager, eventAggregator);
NewsReaderViewModel newsReaderViewModel = new NewsReaderViewModel();
var controller = new NewsController(articleViewModel, newsReaderViewModel);
NewsArticle newsArticle = new NewsArticle() { Title = "SomeTitle", Body = "Newsbody" };
// Act
articleViewModel.SelectedArticle = newsArticle;
// Verify
Assert.AreSame(newsArticle, newsReaderViewModel.NewsArticle);
}
public NewsController(ArticleViewModel articleViewModel, NewsReaderViewModel newsReaderViewModel)
{
this.articleViewModel = articleViewModel;
this.newsReaderViewModel = newsReaderViewModel;
if (articleViewModel != null)
{
this.articleViewModel.PropertyChanged += this.ArticleViewModel_PropertyChanged;
}
}
public void SetNewsArticleUpdatesProperty()
{
var target = new NewsReaderViewModel();
bool propertyChangedRaised = false;
target.PropertyChanged += delegate(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == "NewsArticle")
{
propertyChangedRaised = true;
}
};
NewsArticle article = new NewsArticle() { Title = "My Title", Body = "My Body" };
target.NewsArticle = article;
Assert.AreSame(article, target.NewsArticle);
Assert.IsTrue(propertyChangedRaised);
}
public NewsReaderView(NewsReaderViewModel viewModel)
{
InitializeComponent();
ViewModel = viewModel;
}
