public void CanGetDvdsByRating()
{
var repo = new DvdRepositoryEF();
var dvds = repo.GetDvdByRating("PG");
Assert.AreEqual(1, dvds.Count);
Assert.AreEqual("Elf", dvds[0].Title);
Assert.AreEqual(2003, dvds[0].ReleaseYear);
Assert.AreEqual("Berenbaum", dvds[0].Director);
Assert.AreEqual("PG", dvds[0].Rating);
Assert.AreEqual("Best", dvds[0].Notes);
}