Test : NT.Test := Report.Item ("Lockable.Descriptor insterface");
   begin
      declare
         Cache : Caches.Reference;
      begin
         declare
            Input : aliased Test_Tools.Memory_Stream;
            Parser : aliased Parsers.Parser;
            Subparser : Parsers.Subparser (Parser'Access, Input'Access);
            Parser : Parsers.Stream_Parser (Input'Access);
         begin
            Input.Set_Data (Lockable.Tests.Test_Expression);
            Test_Tools.Next_And_Check (Test, Subparser, Events.Open_List, 1);
            Printers.Transfer (Subparser, Cache);
            Test_Tools.Next_And_Check (Test, Parser, Events.Open_List, 1);
            Printers.Transfer (Parser, Cache);
         end;

         declare
            Cursor : Caches.Cursor := Cache.First;
         begin
            Lockable.Tests.Test_Interface (Test, Cursor);
         end;