def test_mission_num_players_possible(self):
"""You should not be able to specify arbitrary num_players."""
mission = Mission()
mission.num_players = 33
with self.assertRaises(ValidationError) as err:
mission.full_clean()
expected_message = 'Value 33 is not a valid choice.'
message_list = err.exception.message_dict.get('num_players')
self.assertEqual(expected_message, message_list[0])
def test_mission_update_num_players(self):
"""You should be able to update num_players for a Mission."""
mission = Mission()
mission.num_players = 8
self.assertEqual(8, mission.num_players)