def test_makePersonalServerFactory(self):
        """
        L{makePersonalServerFactory} returns a PB server factory which has
        as its root object a L{ResourcePublisher}.
        """
        # The fact that this pile of objects can actually be used somehow is
        # verified by twisted.web.test.test_distrib.
        site = Site(Data(b"foo bar", "text/plain"))
        serverFactory = makePersonalServerFactory(site)
        self.assertIsInstance(serverFactory, PBServerFactory)
        self.assertIsInstance(serverFactory.root, ResourcePublisher)
        self.assertIdentical(serverFactory.root.site, site)

        L{makePersonalServerFactory} returns a PB server factory which has
        as its root object a L{ResourcePublisher}.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/web/test/test_tap.py