http://d.hatena.ne.jp/gfx/20110810/1312933806 http://subtech.g.hatena.ne.jp/cho45/20110613/1307947167 Some of the people trying to change test results formatter with Test::Builder. But it's very painful and silly since Test::Builder doesn't support extending formatter. Test::Builder2 supports to modify test results format. You can write your own formatter class. use strict; use warnings; use utf8;