def test_repository_does_not_retrieve_a_movie_when_there_are_no_movies_for_a_given_letter(
session_factory):
repo = SqlAlchemyRepository(session_factory)
movies = repo.get_movies_by_letter('23')
assert len(movies) == 0
def test_repository_can_retrieve_movies_by_letter(session_factory):
repo = SqlAlchemyRepository(session_factory)
movies = repo.get_movies_by_letter('G')
assert movies[0].title == "Guardians of the Galaxy"
assert len(movies) == 24
