def test_repository_can_add_a_comment(session_factory):
repo = SqlAlchemyRepository(session_factory)
user = repo.get_user('thorke')
article = repo.get_article(2)
comment = make_comment("Trump's onto it!", user, article)
repo.add_comment(comment)
assert comment in repo.get_comments()
def test_repository_can_retrieve_comments(session_factory):
repo = SqlAlchemyRepository(session_factory)
assert len(repo.get_comments()) == 3