def test_saving_and_retrieving_items(self):
list_ = List()
list_.save()
first_item = Item()
first_item.text = 'The first (ever) list item'
first_item.saving_list = list_
first_item.save()
second_item = Item()
second_item.text = 'The second list item'
second_item.saving_list = list_
second_item.save()
saved_list = List.objects.first()
self.assertEqual(saved_list, list_)
saved_items = Item.objects.all()
self.assertEqual(saved_items.count(), 2)
first = saved_items[0]
second = saved_items[1]
self.assertEqual(first.text, first_item.text)
self.assertEqual(first.saving_list, list_)
self.assertEqual(second.text, second_item.text)
self.assertEqual(second.saving_list, list_)
def test_item_is_related_to_list(self):
list_ = List.objects.create()
item = Item()
item.saving_list = list_
item.save()
self.assertIn(item, list_.item_set.all())
