anchor.diff:  
       TestFun = fun({SessId, Path, NameList, UserRootGuid}) ->
           Files = lists:map(fun(Name) ->
  -            {SessId, Name, 8#1775, 0, <<"/", Name/binary>>, UserRootGuid}
  +            {SessId, Name, 8#775, 0, <<"/", Name/binary>>, UserRootGuid}
           end, NameList),
   
           FilesAttrs = lists:map(fun({SessId, Name, Mode, UID, Path, ParentGuid}) ->
  
positive.code:             }
          }, ?file_req(Worker, SessId, ParentGuid, #get_child_attr{name = ChildName}))
      end, [
          {SessId1, <<"space_name1">>, 8#1775, 0, UserRootGuid1, <<"space_name1">>},
          {SessId2, <<"space_name2">>, 8#1775, 0, UserRootGuid2, <<"space_name2">>},
          {SessId1, <<"space_name3">>, 8#1775, 0, UserRootGuid1, <<"space_name3">>},
          {SessId2, <<"space_name4">>, 8#1775, 0, UserRootGuid2, <<"space_name4">>}
      ]),
      ?assertMatch(#fuse_response{status = #status{code = ?ENOENT}},
          ?file_req(Worker, SessId1, UserRootGuid1, #get_child_attr{name = <<"no such child">>})).
  
negative.code:     end, [
          {SessId1, UserId1, 8#1755, 0, <<"/">>, undefined},
          {SessId2, UserId2, 8#1755, 0, <<"/">>, undefined},
          {SessId1, <<"space_name1">>, 8#775, 0, <<"/space_name1">>, UserRootGuid1},
          {SessId2, <<"space_name2">>, 8#775, 0, <<"/space_name2">>, UserRootGuid2},
          {SessId1, <<"space_name3">>, 8#775, 0, <<"/space_name3">>, UserRootGuid1},
          {SessId2, <<"space_name4">>, 8#775, 0, <<"/space_name4">>, UserRootGuid2}
      ]),
      ?assertMatch(
          #fuse_response{status = #status{code = ?ENOENT}},
  