def METHOD_NAME(self):
    pool = self.klass(router=self.router, services=[])
    pool.stop()
    self.assertEqual(None, pool._receiver.handle)
    e = self.assertRaises(mitogen.core.ChannelError,
        lambda: self.router.myself().call_service(MyService, 'foobar'))
    self.assertEqual(e.args[0], self.router.invalid_handle_msg)