/**
  * @see \qtism\data\storage\xml\marshalling\Marshaller::unmarshall()
  */
 protected function unmarshall(DOMElement $element)
 {
     $object = new ItemSessionControl();
     if (($value = static::getDOMElementAttributeAs($element, 'maxAttempts', 'integer')) !== null) {
         $object->setMaxAttempts($value);
     }
     if (($value = static::getDOMElementAttributeAs($element, 'showFeedback', 'boolean')) !== null) {
         $object->setShowFeedback($value);
     }
     if (($value = static::getDOMElementAttributeAs($element, 'allowReview', 'boolean')) !== null) {
         $object->setAllowReview($value);
     }
     if (($value = static::getDOMElementAttributeAs($element, 'showSolution', 'boolean')) !== null) {
         $object->setShowSolution($value);
     }
     if (($value = static::getDOMElementAttributeAs($element, 'allowComment', 'boolean')) !== null) {
         $object->setAllowComment($value);
     }
     if (($value = static::getDOMElementAttributeAs($element, 'allowSkipping', 'boolean')) !== null) {
         $object->setAllowSkipping($value);
     }
     if (($value = static::getDOMElementAttributeAs($element, 'validateResponses', 'boolean')) !== null) {
         $object->setValidateResponses($value);
     }
     return $object;
 }
 public function testSkippingForbidden()
 {
     $itemSession = self::instantiateBasicAssessmentItemSession();
     $itemSessionControl = new ItemSessionControl();
     $itemSessionControl->setAllowSkipping(false);
     $itemSession->setItemSessionControl($itemSessionControl);
     $itemSession->beginItemSession();
     $itemSession->beginAttempt();
     try {
         $itemSession->skip();
         $this->assertTrue(false);
     } catch (AssessmentItemSessionException $e) {
         $this->assertEquals(AssessmentItemSessionException::SKIPPING_FORBIDDEN, $e->getCode());
     }
 }