$this->assertNotEmpty($content->getPreviewPicture(), 'Preview picture for http://www.liberation.fr is ok');
$this->assertNotEmpty($content->getLanguage(), 'Language for http://www.liberation.fr is ok');
$this->assertContains('foot', $content->getTags(), 'It includes the "foot" tag');
$this->assertNotEmpty($content->getPreviewPicture(), 'Preview picture for http://www.liberation.fr is ok');
$this->assertNotEmpty($content->getLanguage(), 'Language for http://www.liberation.fr is ok');
$this->assertContains('foot', $content->getTags(), 'It includes the "foot" tag');