def test_raisingReactorProvides(self):
        """
        L{RaisingMemoryReactor} provides all of the attributes described by the
        interfaces it advertises.
        """
        raisingReactor = RaisingMemoryReactor()
        verifyObject(IReactorTCP, raisingReactor)
        verifyObject(IReactorSSL, raisingReactor)
        verifyObject(IReactorUNIX, raisingReactor)

        L{RaisingMemoryReactor} provides all of the attributes described by the
        interfaces it advertises.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/internet/test/test_testing.py