public void CanLoadDvdDetailMock()
        {
            var repo = new DvdRepositoryMock();
            var dvd  = repo.GetDetails(1);

            Assert.AreEqual(1, dvd.DvdId);
            Assert.AreEqual("Titanic", dvd.Title);
            Assert.AreEqual(1997, dvd.ReleaseYear);
            Assert.AreEqual("Cameron", dvd.DirectorName);
            Assert.AreEqual("PG-13", dvd.RatingName);
            Assert.AreEqual("Must see movie.", dvd.Notes);
        }