public void InsertNewArticleTest()
        {
            ArticleContext articles = new ArticleContext();
            Article        test     = new Article
            {
                Caption    = "TestCaption2",
                Text       = "Test text",
                Date       = DateTime.Now,
                Language   = "Eng",
                Video      = "testlinkVideo",
                Image      = "testlinkImage",
                CategoryId = 1,
                User       = new User
                {
                    Name = "Boris"
                }
            };
            int countArticles = articles.GetCountArticles(null);

            articles.InsertNewArticle(test);
            int afterInsert = articles.GetCountArticles(null);

            Assert.AreNotEqual(countArticles, afterInsert);
            Assert.IsTrue((countArticles + 1) == afterInsert);
        }