This PHPCI plugin allow you to launch casperjs tests, (*1)
First, install casperJS: http://casperjs.readthedocs.org/en/latest/installation.html, (*2)
Add demorose/phpci-casperjs in your composer.json:, (*3)
[...] "require": { [...] "demorose/phpci-casperjs": "dev-master", [...] }, [...]
cp /path/to/phpci/vendor/demorose/phpci-casperjs/Demorose/PHPCI/Plugin/js/casperJs.js /path/to/phpci/public/assets/js/build-plugins/casperJs.js