anchor.diff:  			{error,_} = Error ->
   			    [{?MODULE,error_in_suite,[[Error]]}];
   			Tests ->
  -			    Tests
  +			    delete_subs(Tests, Tests)
   		    end
   	    end;
   	Skip = {skip,_Reason} ->
  
positive.code: find_groups(Mod, Name, TCs, GroupDefs) ->
      Found = find(Mod, Name, TCs, GroupDefs, [], GroupDefs, false),
      Trimmed = trim(Found),
      delete_subs(Trimmed, Trimmed).
  
  find(Mod, all, _TCs, [{Name,Props,Tests} | Gs], Known, Defs, _) ->
      cyclic_test(Mod, Name, Known),
  
negative.code: find(_Mod, _Name, _TCs,  [], _Known, _Defs, _Found) ->
      [].
  
  delete_subs([{conf, _,_,_,_} = Conf | Confs], All) ->
      All1 = delete_conf(Conf, All),
      case is_sub(Conf, All1) of
  	true ->
  