mageekguy\atoum\runner::getExtension PHP Method

    public function getExtension($className)
    {
        foreach ($this->getExtensions() as $extension) {
            if (get_class($extension) === $className) {
                return $extension;
            }
        }
        throw new exceptions\logic\invalidArgument(sprintf('Extension %s is not loaded', $className));
    }