def test_rank_all_calls_set_rank_on_quotes(self):
# Create spy quote to be returned when all quotes are asked
# for through the quote_vote_manager.
spied_quote = Quote(episode=Episode())
spied_quote.set_rank = MagicMock()
patcher = patch('quotes_app.tasks.Quote.quote_vote_manager.all',
return_value=[spied_quote])
patcher.start()
self.addCleanup(patcher.stop)
# Act
rank_all()
# Assert
self.assertTrue(spied_quote.set_rank.called)
