public void ShouldPublishToAllSubscribers()
{
var newsHandler = new NewsHandler();
var newsPaperOne = new NewsPaper("New York Times");
var newsPaperTwo = new NewsPaper("Washington Post");
var news = GenerateTestNews();
newsHandler.PostNews(news[0]);
newsPaperOne.Subscribe(newsHandler);
newsHandler.PostNews(news[1]);
newsPaperTwo.Subscribe(newsHandler);
newsHandler.PostNews(news[2]);
newsPaperOne.newsInfo.Count.Should().Be(3);
newsPaperTwo.newsInfo.Count.Should().Be(3);
newsPaperOne.newsInfo[0].Should().Be(news[0].ToString());
newsPaperOne.newsInfo[1].Should().Be(news[1].ToString());
newsPaperOne.newsInfo[2].Should().Be(news[2].ToString());
newsPaperTwo.newsInfo[0].Should().Be(news[0].ToString());
newsPaperTwo.newsInfo[1].Should().Be(news[1].ToString());
newsPaperTwo.newsInfo[2].Should().Be(news[2].ToString());
}
public void ShouldResetAllNewsWhenUnsubscribed()
{
var newsHandler = new NewsHandler();
var newsPaperOne = new NewsPaper("New York Times");
var news = GenerateTestNews();
news.ToList().ForEach(newsHandler.PostNews);
newsPaperOne.Subscribe(newsHandler);
newsPaperOne.newsInfo.Count.Should().Be(3);
newsPaperOne.Unsubscribe();
newsPaperOne.newsInfo.Should().BeEmpty();
}