Pop\Nav\Nav::setConfig PHP Метод

    public function setConfig(array $config = null)
    {
        if (null === $config) {
            $this->config = array('parent' => array('node' => 'ul'), 'child' => array('node' => 'li'));
        } else {
            $this->config = $config;
        }
        return $this;
    }

 public function testSetAndGetConfig()
 {
     $config = array('parent' => array('node' => 'ul', 'id' => 'nav', 'class' => 'level'), 'child' => array('node' => 'li', 'id' => 'menu', 'class' => 'item'));
     $n = new Nav();
     $n->setConfig($config);
     $c = $n->getConfig();
     $this->assertEquals('level', $c['parent']['class']);
 }