anchor.diff:      lfm_proxy:unlink(P1Node, UserSessIdP1, {guid, LinkGuid}),
       ?assertDetachedDataset(P1Node, UserSessIdP1, DatasetId, FileGuid, undefined, FilePath, ?DIRECTORY_TYPE, ProtectionFlags),
       ?assertMatch({error, ?ENOENT}, lfm_proxy:get_details(P1Node, UserSessIdP1, {guid, LinkGuid})),
  -    ?assertMatch({error, ?ENOENT}, lfm_proxy:get_file_eff_dataset_summary(P1Node, UserSessIdP1, {guid, LinkGuid})),
  -    ?assertNoTopDatasets(P1Node, UserSessIdP1, SpaceId, attached).
  -
  -
  -
  -establish_dataset_attached_to_file_symlink_and_remove_symlink(_Config) ->
  +    ?assertMatch({error, ?ENOENT}, lfm_proxy:get_file_eff_dataset_summary(P1Node, UserSessIdP1, {guid, LinkGuid})).
  +
  +
  +remove_file_symlink_should_detach_dataset(_Config) ->
       [P1Node] = oct_background:get_provider_nodes(krakow),
       UserSessIdP1 = oct_background:get_user_session_id(user1, krakow),
       SpaceId = oct_background:get_space_id(space1),
  
positive.code:     establish_dataset_attached_to_hardlink/1,
      establish_dataset_attached_to_file_symlink/1,
      establish_dataset_attached_to_dir_symlink/1,
      establish_dataset_attached_to_hardlink_and_remove_hardlink/1,
      establish_dataset_attached_to_file_symlink_and_remove_symlink/1,
      establish_dataset_attached_to_dir_symlink_and_remove_symlink/1,
      detach_and_reattach_dataset/1,
      remove_attached_dataset/1,
      remove_detached_dataset/1,
      remove_file_should_detach_dataset/1,
      reattach_if_root_file_is_deleted_should_fail/1,
      remove_detached_dataset_if_root_file_has_already_been_deleted/1,
      establish_dataset_on_not_existing_file_should_fail/1,
  
negative.code:     ProtectionFlags = ?RAND_PROTECTION_FLAGS(),
      {ok, DirGuid} = lfm_proxy:mkdir(P1Node, UserSessIdP1, SpaceGuid, DirName, ?DEFAULT_DIR_PERMS),
      LinkTarget = filename:join(["/", oct_background:get_space_name(space1), DirName]),
      LinkPath = filename:join(["/", oct_background:get_space_name(space1), DirName]),
      {ok, #file_attr{guid = LinkGuid}} = lfm_proxy:make_symlink(P1Node, UserSessIdP1, {guid, DirGuid}, DirName, LinkTarget),
      {ok, DatasetId} = ?assertMatch({ok, _}, lfm_proxy:establish_dataset(P1Node, UserSessIdP1, {guid, LinkGuid}, ProtectionFlags)),
      ?assertAttachedDataset(P1Node, UserSessIdP1, DatasetId, LinkGuid, undefined, ProtectionFlags),
  