public function iWaitForTextToDisappear($text)
   {
       $this->spin(function(FeatureContext $context) use ($text) {
           try {
               $context->assertPageContainsText($text);
           }
           catch(\Behat\Mink\Exception\ResponseTextException $e) {
               return true;
           }
           return false;
       });
   }