def _HasAccessToClient(self, subject, token):
    client_id, _ = rdfvalue.RDFURN(subject).Split(2)
    client_urn = rdf_client.ClientURN(client_id)

    return self.CheckClientAccess(token, client_urn)
Test if updating a slice actually update that slice's information and not 
dataset/ETHPy150Open google/grr/grr/lib/aff4_objects/user_managers.py/FullAccessControlManager._HasAccessToClient--crossover with--dataset/ETHPy150Open fp7-ofelia/ocf/optin_manager/src/python/openflow/optin_manager/xmlrpc_server/tests.py/Tests.test_update_slice