def test_was_default_auto_update(self):
judge = Judge()
judge.path = '/example/judge'
judge.save()
self.assertFalse(judge.was_default_judge)
contest1 = Contest()
contest1.name = "test_contest_1"
contest1.players_count = 1
contest1.default_judge = judge
contest1.save()
self.assertTrue(judge.was_default_judge)