anchor.diff:      gui_not_registered_upload_should_fail/1,
       gui_upload_test/1,
       gui_stale_upload_file_should_be_deleted/1,
  -    gui_finished_upload_file_should_be_left_intact/1,
       gui_upload_with_time_warps_test/1
   ]).
   
  
positive.code:     gui_not_registered_upload_should_fail,
      gui_upload_test,
      gui_stale_upload_file_should_be_deleted,
      gui_finished_upload_file_should_be_left_intact,
      gui_upload_with_time_warps_test
  ].
  
  
negative.code:     ?assertMatch(true, is_gui_upload_registered(UserId, FileGuid, Worker)),
  
      % but if upload is not resumed or finished before INACTIVITY_PERIOD then file should be deleted
      ?assertMatch(false, is_gui_upload_registered(UserId, FileGuid, Worker), 100),
      ?assertMatch({error, ?ENOENT}, lfm_proxy:stat(Worker, UserSessId, {guid, FileGuid}), ?ATTEMPTS).
  
  
  gui_upload_with_time_warps_test(Config) ->
  