def test_duplicate_items_are_invalid(self):
list_ = List.objects.create()
Item.objects.create(list=list_, text='bla')
with self.assertRaises(ValidationError):
item = Item(list=list_, text='bla')
item.full_clean()
def test_CAN_save_same_item_to_different_lists(self):
list1 = List.objects.create()
list2 = List.objects.create()
Item.objects.create(list=list1, text='bla')
item = Item(list=list2, text='bla')
item.full_clean()
def test_cannot_save_empty_list_items(self):
list_ = List.objects.create()
item = Item(list=list_, text='')
with self.assertRaises(ValidationError):
item.save()
item.full_clean()
