public void TestMethodUpdateContentMultipleItems() { Catalog catalog = new Catalog(); string firstURL = "http://telerikacademy.com/"; string secondURL = "http://telerikacademy.com/cources/"; string[] parameters1 = new string[] { "Academy", "Telerik", "3", firstURL }; string[] parameters2 = new string[] { "Academy", "Telerik", "3", secondURL }; CatalogContent item1 = new CatalogContent(ContentTypes.Movie, parameters1); CatalogContent item2 = new CatalogContent(ContentTypes.Movie, parameters2); catalog.Add(item1); catalog.Add(item1); catalog.Add(item1); catalog.Add(item2); var result = catalog.UpdateContent(firstURL, secondURL); Assert.AreEqual(result, 3); }