public void GetAll_returns_not_null()
        {
            var albumSvc = new AlbumService(_albumRepository);

            Assert.IsNotNull(albumSvc.GetAll());
        }
        public void GetAll_returns_100_albums()
        {
            var albumSvc = new AlbumService(_albumRepository);

            Assert.AreEqual(100, albumSvc.GetAll().Count);
        }