597     def _find_change(self, ticket, cnum):  member in TicketCommentTestCase
598         (ts, author, comment) = ticket._find_change(cnum)
640         ticket.modify_comment(self._find_change(ticket, 1),
652         ticket.modify_comment(self._find_change(ticket, 2),
666         ticket.modify_comment(self._find_change(ticket, 3),
681         ticket.modify_comment(self._find_change(ticket, 2),
702         ticket.modify_comment(self._find_change(ticket, 3),
712         ticket.modify_comment(self._find_change(ticket, 2),
724         ticket.modify_comment(self._find_change(ticket, 1),
727         ticket.modify_comment(self._find_change(ticket, 1),
741         ticket.modify_comment(self._find_change(ticket, 1),
757             ticket.modify_comment(self._find_change(ticket, 1),