import pickle import datetime from django.test import TestCase from models import Group, Event, Happening class PickleabilityTestCase(TestCase): def assert_pickles(self, qs): self.assertEqual(list(pickle.loads(pickle.dumps(qs))), list(qs)) def test_related_field(self): g = Group.objects.create(name="Ponies Who Own Maybachs") self.assert_pickles(Event.objects.filter(group=g.id)) def test_datetime_callable_default_all(self): self.assert_pickles(Happening.objects.all()) def test_datetime_callable_default_filter(self): self.assert_pickles(Happening.objects.filter(when=datetime.datetime.now())) def test_lambda_as_default(self): self.assert_pickles(Happening.objects.filter(name="test")) def test_callable_as_default(self): self.assert_pickles(Happening.objects.filter(number=1))