def test_item_is_related_to_list(self):
lst = List.objects.create()
item = Item()
item.lst = lst
item.save()
self.assertIn(item, lst.item_set.all())
def test_item_is_related_to_list(self):
lst = List.objects.create()
item = Item()
item.lst = lst
item.save()
self.assertIn(item, lst.item_set.all())
