public long earliestMsgStoreTime(MessageQueue mq) throws MQClientException {
        return this.mQClientFactory.getMQAdminImpl().earliestMsgStoreTime(mq);
    }
@Test
    public void testEarliestMsgStoreTime() throws MQClientException {
        assertEquals(0, defaultMQPushConsumerImpl.earliestMsgStoreTime(createMessageQueue()));
    }