public function testTransformerLikeWPContent()
{
$json_file = file_get_contents(__DIR__ . '/wp-rules.json');
$instant_article = InstantArticle::create();
$transformer = new Transformer();
$transformer->loadRules($json_file);
$html_file = file_get_contents(__DIR__ . '/wp.html');
libxml_use_internal_errors(true);
$document = new \DOMDocument();
$document->loadHTML($html_file);
libxml_use_internal_errors(false);
$instant_article->withCanonicalURL('http://localhost/article')->withHeader(Header::create()->withTitle('Peace on <b>earth</b>')->addAuthor(Author::create()->withName('bill'))->withPublishTime(Time::create(Time::PUBLISHED)->withDatetime(\DateTime::createFromFormat('j-M-Y G:i:s', '12-Apr-2016 19:46:51'))));
$transformer->transform($instant_article, $document);
$instant_article->addMetaProperty('op:generator:version', '1.0.0');
$instant_article->addMetaProperty('op:generator:transformer:version', '1.0.0');
$result = $instant_article->render('', true) . "\n";
$expected = file_get_contents(__DIR__ . '/wp-ia.xml');
$this->assertEquals($expected, $result);
// there must be 3 warnings related to <img> inside <li> that is not supported by IA
$this->assertEquals(3, count($transformer->getWarnings()));
}