$authors = $content->getPublishedBy();
$this->assertSame('2017-04-05 19:26:13', $content->getPublishedAt()->format('Y-m-d H:i:s'));
$this->assertSame('fr', $content->getLanguage());
$authors = $content->getPublishedBy();
$this->assertSame('2017-04-05 19:26:13', $content->getPublishedAt()->format('Y-m-d H:i:s'));
$this->assertSame('fr', $content->getLanguage());