anchor.diff:      ok.
   
   init_per_group(Group, Config) ->
  -    Config1 = unittest_helper:init_per_group(Group, Config),
  -    MoveConf = case Group of
  -                   send_to_pred ->
  -                       move_config_parameters();
  -                   send_to_pred_incremental ->
  -                       move_config_parameters_incremental();
  -                   send_to_succ ->
  -                       move_config_parameters();
  -                   send_to_succ_incremental ->
  -                       move_config_parameters_incremental()
  -               end,
  -    [{move_config, MoveConf} | Config1].
  +    unittest_helper:init_per_group(Group, Config).
   
   end_per_group(Group, Config) -> unittest_helper:end_per_group(Group, Config).
   
  
positive.code:     symm4_slide_load_test(3, pred, "slide_pred_send_timeouts_node", fun id_pred_to_my_1_100/6, 1),
      send_ignore_msg_list_to(4, node, IgnoredMessages),
      symm4_slide_load_test(4, pred, "slide_pred_send_timeouts_node", fun id_pred_to_my_1_100/6, 1),
      
      % cleanup, just in case:
      _ = [comm:send_local(DhtNodePid, {mockup_dht_node, clear_match_specs})
             || DhtNodePid <- pid_groups:find_all(dht_node)],
  
negative.code: get_pred_node_succ2(NodePid, FailMsg) ->
      comm:send(NodePid, {get_node_details, comm:this(), [node, pred, succ]}),
      receive
          ?SCALARIS_RECV({get_node_details_response, NodeDetails},
                         begin
                             Node = node_details:get(NodeDetails, node),
                             Pred = node_details:get(NodeDetails, pred),
                             Succ = node_details:get(NodeDetails, succ),
                             {Pred, Node, Succ}
                         end);
          ?SCALARIS_RECV(Y, ?ct_fail("~s: unexpected message while "
                                     "waiting for get_node_details_response: ~.0p",
                                     [FailMsg, Y]))
      end.
  
  -spec symm4_slide_load_test_slide(DhtNode::pid(), PredOrSucc::pred | succ,
  