def test_getChildWithSpecial(self):
        """
        The L{ReverseProxyResource} return by C{getChild} has a path which has
        already been quoted.
        """
        resource = ReverseProxyResource(u"127.0.0.1", 1234, b"/path")
        child = resource.getChild(b' /%', None)
        self.assertEqual(child.path, b"/path/%20%2F%25")

        The L{ReverseProxyResource} return by C{getChild} has a path which has
        already been quoted.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/web/test/test_proxy.py