anchor.diff:  
       case OperationRequiresOwnership of
           true ->
  -            % If operation requires ownership then for group member it should failed
  +            % If operation requires ownership then for group member it should fail
               % even if all files modes are set to 777
               lfm_permissions_test_utils:set_modes(Node, maps:map(fun(_, _) -> 8#777 end, ComplementaryPermsPerFile)),
               ?assertMatch(
  
positive.code: 
  
  -define(assert_match(__Expect, __Expression, __ScenarioName, __PermsPerGuid),
      try
          ?assertMatch(__Expect, __Expression)
      catch _:_ ->
          ct:pal(
              "PERMISSIONS TESTS FAILURE~n"
              "   Scenario: ~p~n"
              "   Perms per file: ~p~n",
              [
                  __ScenarioName,
                  maps:fold(fun(G, SetPerms, Acc) ->
                      Acc#{get_file_path(Node, OwnerSessId, G) => SetPerms}
                  end, #{}, __PermsPerGuid)
              ]
          ),
          erlang:error(perms_test_failed)
      end
  ).
  
  -define(assert_not_match(__Expect, __Expression, __ScenarioName, __PermsPerGuid),
      try
          ?assertNotMatch(__Expect, __Expression)
      catch _:_ ->
          ct:pal(
              "PERMISSIONS TESTS FAILURE~n"
              "   Scenario: ~p~n"
              "   Perms per file: ~p~n",
              [
                  __ScenarioName,
                  maps:fold(fun(Guid, SetPerms, Acc) ->
                      Acc#{get_file_path(Node, OwnerSessId, Guid) => SetPerms}
                  end, #{}, __PermsPerGuid)
              ]
          ),
          erlang:error(perms_test_failed)
      end
  ).
  
  -define(SCENARIO_NAME(__PREFIX, __TYPE),
  
negative.code:             Acc#{Guid => Mode bor maps:get(Guid, Acc)}
          end, ComplementaryModesPerFile, EaccessModeComb),
          lfm_permissions_test_utils:set_modes(Node, EaccesModesPerFile),
          ?assert_match(
              {error, ?EACCES},
              Operation(OwnerSessId, SessId, TestCaseRootDirPath, ExtraData),
              <<"standard_posix_perms_test">>,
              EaccesModesPerFile
          )
      end, EaccesModesCombs),
  
  