anchor.diff:  
   get_session_file_handles_num(W, FileGuid, SessionId) ->
       FileUuid = fslogic_uuid:guid_to_uuid(FileGuid),
  -    {ok, [#document{key = FileUuid, value = FileHandlesRec} | _]} = rpc:call(W, file_handles, list, []),
  +    {ok, [#document{key = FileUuid, value = FileHandlesRec} | _]} = rpc:call(
  +        W, file_handles, list, []
  +    ),
       Descriptors = FileHandlesRec#file_handles.descriptors,
       case maps:find(SessionId, Descriptors) of
         {ok, HandlesNum} ->
  
positive.code:         Case =:= lfm_create_and_open_failure_test orelse
          Case =:= lfm_copy_failure_test orelse
          Case =:= lfm_open_multiple_times_failure_test orelse
          Case =:= lfm_open_failure_multiple_users_test,
          Case =:= lfm_open_and_create_open_failure_test,
          Case =:= lfm_copy_failure_multiple_users_test ->
      Workers = ?config(op_worker_nodes, Config),
      test_utils:mock_new(Workers, file_handles, [passthrough]),
      init_per_testcase(default, Config);
  
  init_per_testcase(ShareTest, Config) when
  
negative.code:         Case =:= lfm_create_and_open_failure_test orelse
          Case =:= lfm_copy_failure_test orelse
          Case =:= lfm_open_multiple_times_failure_test orelse
          Case =:= lfm_open_failure_multiple_users_test orelse
          Case =:= lfm_open_and_create_open_failure_test orelse
          Case =:= lfm_copy_failure_multiple_users_test ->
      Workers = ?config(op_worker_nodes, Config),
      test_utils:mock_unload(Workers, [storage_file_manager]),
      end_per_testcase(?DEFAULT_CASE(Case), Config);
  
  end_per_testcase(ShareTest, Config) when
  