public function testHtmlDiffConfigTraditional()
 {
     $oldText = '<b>text</b>';
     $newText = '<b>t3xt</b>';
     $diff = new HtmlDiff(trim($oldText), trim($newText), 'UTF-8', array());
     $diff->getConfig()->setPurifierCacheLocation('/tmp');
     $diff->setHTMLPurifierConfig($this->config);
     $diff->build();
 }