/**
  * Asserts that validation is executed.
  */
 private function assertSuccessfulValidation($returnto, $for_proxy = FALSE)
 {
     $service_params = array();
     if ($returnto) {
         $service_params['returnto'] = 'node/1';
     }
     $validation_data = new CasPropertyBag('testuser');
     if ($for_proxy) {
         $validation_data->setPgt('testpgt');
     }
     // Validation service should be called for that ticket.
     $this->casValidator->expects($this->once())->method('validateTicket')->with($this->equalTo('ST-foobar'), $this->equalTo($service_params))->will($this->returnValue($validation_data));
 }