anchor.diff:              single_node_leave,
               single_node_kill,
               single_node_publish,
  -            single_node_call
  +            single_node_multi_call
           ]},
           {two_nodes_process_groups, [shuffle], [
               two_nodes_kill,
               two_nodes_publish,
  -            two_nodes_call
  +            two_nodes_multi_call
           ]}
       ].
   %% -------------------------------------------------------------------
  
positive.code:     single_node_leave/1,
      single_node_kill/1,
      single_node_publish/1,
      single_node_call/1
  ]).
  -export([
      two_nodes_kill/1,
      two_nodes_publish/1,
      two_nodes_call/1
  ]).
  
  %% internal
  
negative.code:     syn_test_suite_helper:kill_process(PidLocal),
      syn_test_suite_helper:kill_process(PidSlave).
  
  two_nodes_multi_call(Config) ->
      %% get slave
      SlaveNode = proplists:get_value(slave_node, Config),
      %% set schema location
  