def test_folk_deletion(self): """ Deleted people do not CASCADE on their family, only set to None. """ son = Folk(kingdom=self.k) son.father = self.f son.save() pupil = Folk(kingdom=self.k) pupil.mentor = self.f pupil.save() wife = Folk(kingdom=self.k) wife.spouse = self.f wife.save() # Sanity check self.assertEqual(4, Folk.objects.count()) self.assertEqual(son.father, self.f) self.assertEqual(pupil.mentor, self.f) self.assertEqual(wife.spouse, self.f) self.f.delete() self.assertEqual(3, Folk.objects.count()) self.assertIsNone(Folk.objects.get(pk=son.pk).father) self.assertIsNone(Folk.objects.get(pk=pupil.pk).mentor) self.assertIsNone(Folk.objects.get(pk=wife.pk).spouse)
