'return None for an OpenIDRequest without AX paramaters.'

def test_fromOpenIDRequestWithoutExtension(self):

    openid_req_msg = Message.fromOpenIDArgs({'mode': 'checkid_setup', 'ns': OPENID2_NS})
    oreq = DummyRequest(openid_req_msg)
    r = ax.FetchRequest.fromOpenIDRequest(oreq)
    self.failUnless((r is None), ('%s    is    not    None' % (r,)))
