def test_returnsDeferredResolver(self):
        deferredResolver = root.bootstrap(StubResolver())
        self.assertIsInstance(deferredResolver, root.DeferredResolver)
If an authorization header contains credentials, return True, else False.
dataset/ETHPy150Open twisted/twisted/twisted/names/test/test_rootresolve.py/BootstrapTests.test_returnsDeferredResolver--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/cherrypy/cherrypy/lib/auth.py/check_auth