>
> > If you would like to modernise your font-lock test, I would be happy to
> contribute it to Emacs (as I suggested in
> > bug#16063).
>
> Why wouldn't we want that?  Please go ahead, and thanks.
>

Thanks! In which branch should I add it, master or Emacs-26?

I guess it should go into lisp/emacs-lisp, as "ert.el" is located there.

    -- Anders