function testDocDocumentDirectly()
{
$dom = new \DOMDocument();
$dom->formatOutput = false;
$dom->loadHTML('<!doctype html><html><body><div></div></body></html>');
$this->object->loadDomDocument($dom);
$this->object->applyRule('div', 'color: red');
$this->assertEquals('<!DOCTYPE html>
<html><body><div style="color: red"></div></body></html>
', $dom->saveHTML());
}
