def test_game_requires_players(self):
arena = make_a_whole_arena()
course = make_course(arena)[0]
player = make_players()[0]
game = Game(
course=course,
creator=player,
created=datetime.now(),
)
game.save()
game.players = [player]
game.start()
# Check that game doesn't finish without players
self.assertRaises(ValidationError, game.finish)
