anchor.diff:  
           run_multi_provider_perm_test(
               Nodes, User, Guid, PosixPerms, DeniedPerms,
  -            ?EACCES, <<"denied posix perm">>, Config
  +            {error, ?EACCES}, <<"denied posix perm">>, Config
           ),
           run_multi_provider_perm_test(
               Nodes, User, Guid, PosixPerms, AllowedPerms,
  
positive.code:     SessId = ?config({session_id, {User, ?GET_DOMAIN(Node)}}, Config),
      UserCtx = rpc:call(Node, user_ctx, new, [SessId]),
  
      rpc:call(Node, fslogic_authz, ensure_authorized, [
          UserCtx, file_ctx:new_by_guid(Guid), Perms
      ]).
  
  
  -spec for(pos_integer(), term()) -> term().
  
negative.code: 
          run_multi_provider_perm_test(
              Nodes, User, Guid, SetPerms, lfm_permissions_test_utils:complementary_perms(P1W2, Guid, SetPerms),
              {error, ?EACCES}, <<"denied acl perm">>, Config
          ),
          run_multi_provider_perm_test(
              Nodes, User, Guid, SetPerms, SetPerms,
  