anchor.diff:      WorkingDir = string:sub_string(PWD, 1, string:len(PWD) - 1) ++
           "/" ++ config:read(db_directory) ++ "/" ++ atom_to_list(erlang:node()) ++ "/",
       _ = file:delete(WorkingDir ++ "schema.DAT"),
  +    RingSize = ring_size(),
       Config3 = unittest_helper:stop_minimal_procs(Config2),
   
       {priv_dir, PrivDir} = lists:keyfind(priv_dir, 1, Config3),
  -    unittest_helper:make_ring(ring_size(), [{config, [{log_path, PrivDir},
  +    unittest_helper:make_ring(RingSize, [{config, [{log_path, PrivDir},
                                                         {leases, true},
                                                         {db_backend, db_mnesia}]}]),
       unittest_helper:check_ring_size_fully_joined(ring_size()),
  
positive.code: %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  remove_node(_Config) ->
      ct:pal("wait for check_leases"),
      lease_checker2:wait_for_clean_leases(500, [{ring_size, 4}]),
      %% delete random node from ring
      RandomNode = comm:make_local(lease_checker:get_random_save_node()),
      io:format("show prbr statistics for the ring~n"),
  
negative.code:     10.
  
  ring_size() ->
      config:read(replication_factor).
  
  all() -> [
            {group, make_ring_group},
  