public void GenreListGetByIdTest() { var genreList = new GenreList(); var guid1 = Guid.NewGuid(); var guid2 = Guid.NewGuid(); var guid3 = Guid.NewGuid(); genreList.Add(new Genre(1, "Name1", "Description1")); genreList.Add(new Genre(2, "Name2", "Description2")); genreList.Add(new Genre(3, "Name3", "Description3")); var genre = genreList.GetbyId(0); Assert.AreEqual(genre, null); genre = genreList.GetbyId(-1); Assert.AreEqual(genre, null); genre = genreList.GetbyId(1); Assert.AreEqual(genre.Name, "Name1"); genre = genreList.GetbyId(2); Assert.AreEqual(genre.Name, "Name2"); genre = genreList.GetbyId(3); Assert.AreEqual(genre.Name, "Name3"); }