anchor.diff:      end.
   
   wait_registry_propagation(DesiredCount) ->
  -    case syn:registry_count(default) of
  +    case syn:registry_count(?TEST_SCOPE) of
           DesiredCount ->
               ok;
   
  
positive.code: 
  worker_unregister_on_node(FromName, ToName) when FromName > ToName -> ok;
  worker_unregister_on_node(Name, ToName) ->
      ok = syn:unregister(Name),
      worker_unregister_on_node(Name + 1, ToName).
  
  join_on_node(CollectorPid, WorkersPerNode, Pids) ->
  
negative.code:     join_on_node/3,
      leave_on_node/3,
      wait_registry_propagation/1,
      wait_pg_propagation/1
  ]).
  -export([
      start_profiling/1,
  