def METHOD_NAME(self):
    # Create Session message with pdr_id=0
    cls_sess = CreateSessionUtil("IMSI001010000000001", 100, 1000)
    cls_sess.CreateSessionWithFaultyPDR()
    # Check if wrong PDR returns error
    self._util_session_message_handler(cls_sess._set_session, CauseIE.MANDATORY_IE_INCORRECT)