public void Constructor_CreateBingMicrosoftNews()
        {
            var rssFeed = RssFeed.CreateRssFeed("https://www.bing.com/news?q=Microsoft&format=RSS&mkt=ja-JP");

            Assert.IsNotNull(rssFeed);
            Console.WriteLine(rssFeed);
        }
        public void Constructor_CreateMicrosoftOfficialBlog()
        {
            var rssFeed = RssFeed.CreateRssFeed("https://blogs.microsoft.com/feed/");

            Assert.IsNotNull(rssFeed);
        }
        public void Constructor_CreateYahooJapanDomesticNews()
        {
            var rssFeed = RssFeed.CreateRssFeed("https://news.yahoo.co.jp/rss/categories/domestic.xml");

            Assert.IsNotNull(rssFeed);
        }
        public void Constructor_CreateYahooJapanTopTopicsNews()
        {
            var rssFeed = RssFeed.CreateRssFeed("https://news.yahoo.co.jp/rss/topics/top-picks.xml");

            Assert.IsNotNull(rssFeed);
        }