anchor.diff:  
   qos1_online_test(MaxInflightMsgs) ->
       {ok, _} = vmq_server_cmd:set_config(max_inflight_messages, MaxInflightMsgs),
  -    Topic = "in/order/qos/1",
  +    Topic = "in/order/online/qos/1",
       SubSocket = setup_con(Topic, 1),
       PubSocket = setup_pub(Topic, fun setup_pub_qos1/3),
       ok = recv_qos1(SubSocket, Topic, MaxInflightMsgs),
  
positive.code: 
  qos1_offline_test(MaxInflightMsgs) ->
      {ok, _} = vmq_server_cmd:set_config(max_inflight_messages, MaxInflightMsgs),
      Topic = "in/order/qos/1",
      SubSocket1 = setup_con(Topic, 1),
      PubSocket = setup_pub(Topic, fun setup_pub_qos1/3),
      gen_tcp:close(SubSocket1),
  
negative.code: -module(vmq_in_order_delivery_SUITE).
  
  -compile(export_all).
  -compile(nowarn_export_all).
  
  -include_lib("vmq_commons/include/vmq_types.hrl").
  
  -define(RETRY_INTERVAL, 2).
  -define(NR_OF_MSGS, 400).
  
  %% ===================================================================
  %% common_test callbacks
  %% ===================================================================
  init_per_suite(_Config) ->
      cover:start(),
      vmq_test_utils:setup(),
      vmq_server_cmd:set_config(allow_anonymous, true),
      vmq_server_cmd:set_config(retry_interval, ?RETRY_INTERVAL),
  