public void WhenConstructed_IntializesValues()
{
//Prepare
Mock<INewsService> mockedNewsService = new Mock<INewsService>();
//Act
BaseArticleViewModel target = new BaseArticleViewModel(mockedNewsService.Object);
//Verify
Assert.IsNull(target.Keywords);
Assert.IsNull(target.MajorArticles);
Assert.IsNull(target.MinorArticles);
Assert.AreEqual(LoadingStates.NormalState, target.State);
mockedNewsService.VerifyAll();
}
public void WhenPropertyChanged_PropertyIsUpdated()
{
//Prepare
Mock<INewsService> mockedNewsService = new Mock<INewsService>();
mockedNewsService.Setup(x => x.GetNews(It.Is<string[]>(keywords => keywords.Length > 0))).Returns(
new Article[] { new Article() }).Verifiable();
BaseArticleViewModel target = new BaseArticleViewModel(mockedNewsService.Object);
bool majorArticlesChangedRaised = false;
target.PropertyChanged += delegate(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == "MajorArticles")
{
majorArticlesChangedRaised = true;
}
};
bool minorArticlesChangedRaised = false;
target.PropertyChanged += delegate(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == "MinorArticles")
{
minorArticlesChangedRaised = true;
}
};
bool stateChangedRaised = false;
target.PropertyChanged += delegate(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == "State")
{
stateChangedRaised = true;
}
};
//Act
target.MajorArticles = new Article[] { new Article() };
target.MinorArticles = new Article[] { new Article() };
target.State = "";
//Verify
Assert.IsTrue(majorArticlesChangedRaised);
Assert.IsTrue(minorArticlesChangedRaised);
Assert.IsTrue(stateChangedRaised);
}
public void WhenArticlesInitialized_ArticlesSet()
{
//Prepare
Mock<INewsService> mockedNewsService = new Mock<INewsService>();
Article[] articles = new Article[] {
new Article { ArticleType = ArticleTypes.Major, Keywords = new string[] { "Diablo" } },
new Article { ArticleType = ArticleTypes.Notification, Keywords = new string[] { "Maintenance" } }
};
mockedNewsService.Setup(x => x.GetNews(It.Is<string[]>(keywords => keywords.Length > 0))).Returns(articles);
BaseArticleViewModel target = new BaseArticleViewModel(mockedNewsService.Object);
//Act
target.InitializeArticles(new string[] { "Diablo", "Maintenance" });
//Verify
Assert.IsNotNull(target.MajorArticles);
Assert.IsNotNull(target.MinorArticles);
mockedNewsService.VerifyAll();
}
public async Task WhenArticlesInitializedAsync_ArticlesSet()
{
//Prepare
Mock<INewsService> mockedNewsService = new Mock<INewsService>();
Article[] articles = new Article[] {
new Article { ArticleType = ArticleTypes.Major, Keywords = new string[] { "Diablo" } },
new Article { ArticleType = ArticleTypes.Notification, Keywords = new string[] { "Maintenance" } }
};
mockedNewsService.Setup(x => x.GetNewsAsync(It.Is<string[]>(keywords => keywords.Length > 0), It.IsAny<CancellationToken>())).Returns(Task.FromResult(articles));
BaseArticleViewModel target = new BaseArticleViewModel(mockedNewsService.Object);
target.Keywords = new string[] { "Diablo", "Maintenance" };
//Act
await target.InitializeArticlesAsync();
//Verify
Assert.AreEqual(1, target.MajorArticles.Count);
Assert.AreEqual(1, target.MinorArticles.Count);
}