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 ShouldViewModelBeInitializedAndAssociated()
{
//arrange
viewModel = new NewsReaderViewModel(DataManager);
//act
//assert
Assert.IsNotNull(viewModel);
}
public void ShouldExecuteTextSizeDecreaseTextSize()
{
//arrange
viewModel = new NewsReaderViewModel(DataManager);
double titleTextSize = viewModel.TitleTextSize;
double textSize = viewModel.TextSize;
//act
Task.Run(async() =>
{
await viewModel.ExecuteDecreaseTextSizeCommandAsync();
}).GetAwaiter().GetResult();
//assert
viewModel.TitleTextSize.ShouldBeLessThan(titleTextSize);
viewModel.TextSize.ShouldBeLessThan(textSize);
}
public void ShouldInitMethodLoadNewsData()
{
//arrange
viewModel = new NewsReaderViewModel(DataManager);
NewsViewModel newsViewModel = new NewsViewModel()
{
ItemTitle = "Sample Title",
Text = "This is a sample text to showcase features of news reader.",
Image = "sampleOne",
Date = DateTime.Now
};
//act
viewModel.Init(newsViewModel);
//assert
viewModel.NewsViewModel.ItemTitle.ShouldBe(newsViewModel.ItemTitle);
viewModel.NewsViewModel.Text.ShouldBe(newsViewModel.Text);
viewModel.NewsViewModel.Image.ShouldBe(newsViewModel.Image);
Assert.AreEqual(viewModel.NewsViewModel.Date, newsViewModel.Date);
}
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);
}
