public function testPreRender($expected, $body)
{
$document = new Document();
$document->setLayout('default');
$document->setTitle('title');
$document->setPath('index.html');
$document->setBody($body);
$event = new CarewEvent(array($document));
$this->twigListenner->preRender($event);
$this->assertSame($expected, $document->getBody());
}