About a year old – http://peridot-php.github.io/ – Clean and refreshing. Assertions library at http://peridot-php.github.io/leo/expect.html .
Installed it with:
composer global require peridot-php/peridot:~1.15 composer global require peridot-php/leo:~1.0
And had to add it to the PATH ( $HOME/.composer/vendor/bin ).
Dan Bernardic 