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 WhenConstructedWithNullRegionManager_Throws()
{
// Prepare
INewsFeedService newsFeedService = new Mock<INewsFeedService>().Object;
IRegionManager regionManager = null;
IEventAggregator eventAggregator = new Mock<IEventAggregator>().Object;
// Act
ArticleViewModel actual = new ArticleViewModel(newsFeedService, regionManager, eventAggregator);
// Verify
}
public void WhenConstructed_InitializesValues()
{
// 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;
// Act
ArticleViewModel actual = new ArticleViewModel(newsFeedService, regionManager, eventAggregator);
// Verify
Assert.IsNull(actual.Articles);
Assert.IsNull(actual.SelectedArticle);
Assert.IsNotNull(actual.ShowArticleListCommand);
Assert.IsNotNull(actual.ShowNewsReaderCommand);
}
public ArticleView(ArticleViewModel viewModel, INewsController newsController)
{
InitializeComponent();
ViewModel = viewModel;
NewsController = newsController;
}
public void WhenShowNewsReaderCommandInvokes_RegionIsNavigated()
{
// Prepare
NewsArticle newsArticle = new NewsArticle();
var tickerSymbolSelectedEvent = new Mock<TickerSymbolSelectedEvent>().Object;
Mock<INewsFeedService> mockNewsFeedService = new Mock<INewsFeedService>();
Mock<IRegionManager> mockRegionManager = new Mock<IRegionManager>();
Mock<IEventAggregator> mockEventAggregator = new Mock<IEventAggregator>();
mockEventAggregator.Setup(x => x.GetEvent<TickerSymbolSelectedEvent>()).Returns(tickerSymbolSelectedEvent);
INewsFeedService newsFeedService = mockNewsFeedService.Object;
IRegionManager regionManager = mockRegionManager.Object;
IEventAggregator eventAggregator = mockEventAggregator.Object;
ArticleViewModel target = new ArticleViewModel(newsFeedService, regionManager, eventAggregator);
bool propertyChangedRaised = false;
target.PropertyChanged += delegate(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == "SelectedArticle")
{
propertyChangedRaised = true;
}
};
// Act
target.SelectedArticle = newsArticle;
// Verify
Assert.AreEqual(newsArticle, target.SelectedArticle);
Assert.IsTrue(propertyChangedRaised);
}
public void WhenCompanySymbolSet_NewsArticlesAreRetrieved()
{
// Prepare
string companySymbol = "CompanySymbol";
List<NewsArticle> articles = new List<NewsArticle>();
var tickerSymbolSelectedEvent = new Mock<TickerSymbolSelectedEvent>().Object;
Mock<INewsFeedService> mockNewsFeedService = new Mock<INewsFeedService>();
mockNewsFeedService.Setup(x => x.GetNews(companySymbol)).Returns(articles).Verifiable();
Mock<IRegionManager> mockRegionManager = new Mock<IRegionManager>();
Mock<IEventAggregator> mockEventAggregator = new Mock<IEventAggregator>();
mockEventAggregator.Setup(x => x.GetEvent<TickerSymbolSelectedEvent>()).Returns(tickerSymbolSelectedEvent);
INewsFeedService newsFeedService = mockNewsFeedService.Object;
IRegionManager regionManager = mockRegionManager.Object;
IEventAggregator eventAggregator = mockEventAggregator.Object;
ArticleViewModel target = new ArticleViewModel(newsFeedService, regionManager, eventAggregator);
bool propertyChangedRaised = false;
target.PropertyChanged += delegate(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == "Articles")
{
propertyChangedRaised = true;
}
};
// Act
target.CompanySymbol = companySymbol;
// Verify
mockNewsFeedService.VerifyAll();
Assert.AreSame(target.Articles, articles);
Assert.IsTrue(propertyChangedRaised);
}
