anchor.diff:      buildInputs = [ TestException ];
       meta = {
         description = "(X)HTML validation in a Perl object";
  -      homepage = "http://github.com/petdance/html-tidy";
  +      homepage = "https://github.com/petdance/html-tidy";
         license = with lib.licenses; [ artistic2 ];
         mainProgram = "webtidy";
       };
  
positive.code:     };
      meta = {
        description = "Associate user-defined magic to variables from Perl";
        homepage = "http://search.cpan.org/dist/Variable-Magic";
        license = with lib.licenses; [ artistic1 gpl1Plus ];
      };
    };
  
negative.code:     buildInputs = [ TestFatal ];
      meta = {
        description = "Build a URI from a set of named parameters";
        homepage = "https://metacpan.org/release/URI-FromHash";
        license = with lib.licenses; [ artistic2 ];
      };
    };
  