/**
  * Test whether sandbox custom validation error handler intercepts validation Errors
  */
 public function testCustomValidationErrorHandler()
 {
     $this->setExpectedException('PHPSandbox\\Error');
     $this->sandbox->set_validation_error_handler(function ($error) {
         throw $error;
     });
     $this->sandbox->execute(function () {
         test2();
     });
 }