public void ShouldGetAlbumsByUser()
{
var userAlbums = _albums.Where(a => a.UserId == 1).ToList();
_albumRepository = new Mock<IAlbumRepository>();
_albumRepository.Setup(a => a.Find(It.IsAny<Expression<Func<Album, bool>>>(), true))
.Returns(userAlbums);
_albumLogic = new AlbumLogic(_albumRepository.Object);
var albums = _albumLogic.GetByUser(1);
Assert.AreEqual(2, albums.Count);
Assert.AreEqual(1, albums[0].User.Id);
Assert.AreEqual(1, albums[1].User.Id);
}