def test_notFoundDefault(self):
        """
        If none of the objects passed in the list to L{acquireAttribute} have
        the requested attribute and a default value is given, the default value
        is returned.
        """
        default = object()
        self.assertTrue(default is acquireAttribute([object()], "foo", default))

        If none of the objects passed in the list to L{acquireAttribute} have
        the requested attribute and a default value is given, the default value
        is returned.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/trial/test/test_util.py