Bolt\Twig\TwigExtension::testJson PHP Method

    public function testJson($string)
    {
        return $this->handlers['text']->testJson($string);
    }

 public function testTestJson()
 {
     $app = $this->getApp();
     $handlers = $this->getTwigHandlers($app);
     $handlers['text'] = $this->getMockHandler('TextHandler', 'testJson');
     $twig = new TwigExtension($app, $handlers, true);
     $twig->testJson(null);
 }