'Ensure user_id is persistend for multiple federated authn calls.'

def test_user_id_persistense(self):

    r = self._issue_unscoped_token()
    user_id = r.json_body['token']['user']['id']
    self.assertNotEmpty(self.identity_api.get_user(user_id))
    r = self._issue_unscoped_token()
    user_id2 = r.json_body['token']['user']['id']
    self.assertNotEmpty(self.identity_api.get_user(user_id2))
    self.assertEqual(user_id, user_id2)
