mageekguy\atoum\scripts\runner::setDefaultAutoloaderFiles PHP Method

    public function setDefaultAutoloaderFiles($startDirectory = null)
    {
        foreach (self::getSubDirectoryPath($startDirectory ?: $this->getDirectory()) as $directory) {
            $defaultAutoloaderFile = $directory . static::defaultAutoloaderFile;
            if ($this->adapter->is_file($defaultAutoloaderFile) === true) {
                $this->setAutoloaderFile($defaultAutoloaderFile);
                return $this;
            }
        }
        foreach (self::getSubDirectoryPath($startDirectory ?: $this->getDirectory()) as $directory) {
            $composerAutoloaderFile = $directory . static::defaultComposerAutoloaderFile;
            if ($this->adapter->is_file($composerAutoloaderFile) === true) {
                $this->setAutoloaderFile($composerAutoloaderFile);
                break;
            }
        }
        return $this;
    }