def test_movie_remove_genre():
movie = Movie("Imception", 2011)
genre = Genre("Weird")
movie.add_actor(genre)
assert len(movie.actors) == 1
movie.remove_actor(genre)
assert len(movie.actors) == 0
def test_movie_remove_actor():
movie = Movie("Imception", 2011)
actor = Actor("John Doe")
movie.add_actor(actor)
assert len(movie.actors) == 1
movie.remove_actor(actor)
assert len(movie.actors) == 0