anchor.diff:  %% ====================================================================
   %% eunit tests
   %% ====================================================================
  --ifdef(EUNIT).
  +-ifdef(EUNITX).
   nebula2_dataobjects_test_() ->
       {foreach,
        fun() ->
  
positive.code: 
  %% @doc Update a CDMI dataobject
  -spec nebula2_dataobjects:update_dataobject(cowboy_req:req(),
  											cdmi_state(),
  											object_oid(),
  											map()) -> {boolean(), cowboy_req:req(), cdmi_state()}.
  update_dataobject(Req, State, Oid, NewData) when is_tuple(State), is_binary(Oid), is_map(NewData) ->
      ?nebMsg("Entry"),
      {Pid, _EnvMap} = State,
  
negative.code:     Data3 = nebula2_utils:update_data_system_metadata(CList, Data2, State),
      Data4 = nebula2_db:marshall(Data3),
      case nebula2_db:update(Pid, Oid, Data4) of
          {ok, _Updated} ->
              {true, Req, State};
          _  ->
              {false, Req, State}
      end.
  
  %% ====================================================================
  