/**
  * 生成ack响应供测试程序使用
  * @return ack响应集供test case选择
  */
 private function _gen_ack_response($subject)
 {
     $ack = new BStompAckFrame();
     $ack->status = BStompIdAckType::TOPIC_ID;
     $ack->ack_type = BStompFrameType::ACK;
     $ack->session_message_id = TestUtilities::get_private_var($subject, '_session_msg_id') + 1;
     $this->assertFalse(false === $ack->session_message_id);
     $ack->topic_message_id = 369;
     $ack->global_message_id = 7659;
     $ack->delay_time = 0;
     $ack->destination = 'unknown';
     $ack->receipt_id = 'fake-receipt-id';
     $ack->store();
     $good_ack = $ack->buffer();
     $orig_smid = $ack->session_message_id;
     $ack->session_message_id = $orig_smid + 10;
     $ack->store();
     $bad_session = $ack->buffer();
     $ack->session_message_id = $orig_smid;
     $ack->receipt_id = BigpipeUtilities::get_uid();
     $ack->store();
     $bad_receipt = $ack->buffer();
     $res_arr = array('good' => $good_ack, 'bad_session' => $bad_session, 'bad_receipt' => $bad_receipt, 'error_body' => 'error');
     return $res_arr;
 }
        if ($msg_count != $max_msg_count + 1) {
            echo "[expected:{$max_msg_count}][actual:{$msg_count}]\n";
            continue;
            // 打包失败,退出
        }
        // 当消息添加完后,使用publisher的send接口,发布数据
        // send成功,返回的pub_result中包含了pipelet_id和pipelet_msg_id
        // pipelet_msg_id唯一标识了本个数据包在pipelet中的位置
        // send失败,用户可以选择继续send,这时send接口内部会更新状态,尝试重新发布
        $pub_result = $pub->send($msg_package);
        if (false === $pub_result) {
            echo "[fail to publish message package][count:{$count}]\n";
            break;
            // 出错便停止
        } else {
            // write result to file
            $session = TestUtilities::get_private_var($pub, '_session');
            $ret_str = sprintf("%d,%u,%u,%u,%s\n", $pub_result->error_no, $pub_result->pipelet_id, $pub_result->pipelet_msg_id, $pub_result->session_msg_id, $session);
            fwrite($pub_file, $ret_str);
            $succeed++;
        }
        echo "[Publisher][count:{$count}][success:{$succeed}]====\n";
        // 当发布结束后,使用uninit强制清空发布状态
        $pub->uninit();
    } else {
        echo "[Failure][init publisher]\n";
    }
    $count++;
}
// end of while
BigpipeLog::close();
 /**
  * ²âÊÔ_update_meta
  */
 public function testUpdateMeta()
 {
     $subject = new BigpipeSubscriber();
     $method = TestUtilities::get_private_method($subject, '_update_meta');
     $this->assertTrue(false !== $method);
     // ÉèÖÃmeta_adapterµÄÐÐΪ
     $sub_info = $this->_gen_sub_broker_group();
     $grp_fail = $this->_gen_sub_broker_group();
     $grp_fail['broker_group']->status = BigpipeBrokerGroupStatus::FAIL;
     $no_cand = $this->_gen_sub_broker_group();
     $no_cand['broker_group']->brokers[1]->role = BigpipeBrokerRole::PRIMARY;
     $this->stub_meta->expects($this->any())->method('get_sub_broker_group')->will($this->onConsecutiveCalls($grp_fail, $no_cand, $sub_info, $sub_info, $sub_info));
     $this->assertTrue(TestUtilities::set_private_var($subject, '_meta_adapter', $this->stub_meta));
     $this->assertTrue(TestUtilities::set_private_var($subject, '_pipelet_msg_id', SubscribeStartPoint::START_FROM_FIRST_POINT));
     // ²âÊÔ1 È¡µ½µÄgroupÊÇfail״̬
     $this->assertFalse($method->invoke($subject));
     // ²âÊÔ2 ÎÞºòÑ¡Õß
     $this->assertFalse($method->invoke($subject));
     // ²âÊÔ3 preferÌõ¼þ²»¶Ô
     $this->assertTrue(TestUtilities::set_private_var($subject, '_pref_conn', 9));
     $this->assertFalse($method->invoke($subject));
     // ²âÊÔ4 ³É¹¦²¢Ñ¡È¡primary broker
     $this->assertTrue(TestUtilities::set_private_var($subject, '_pref_conn', BigpipeConnectPreferType::PRIMARY_BROKER_ONLY));
     $this->assertTrue($method->invoke($subject));
     $brokers = TestUtilities::get_private_var($subject, '_brokers');
     $this->assertTrue(false != $brokers);
     $this->assertEquals(1, count($brokers));
     $this->assertEquals(BigpipeBrokerRole::PRIMARY, $brokers[0]->role);
     // ²âÊÔ5 ³É¹¦²¢Ñ¡È¡secondary broker
     $this->assertTrue(TestUtilities::set_private_var($subject, '_pref_conn', BigpipeConnectPreferType::SECONDARY_BROKER_ONLY));
     $this->assertTrue($method->invoke($subject));
     $brokers = TestUtilities::get_private_var($subject, '_brokers');
     $this->assertTrue(false != $brokers);
     $this->assertEquals(1, count($brokers));
     $this->assertEquals(BigpipeBrokerRole::SECONDARY, $brokers[0]->role);
 }