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