public function testWeighted()
{
$assessmentItemRef = new ExtendedAssessmentItemRef('Q01', './Q01.xml');
$weights = new WeightCollection(array(new Weight('weight1', 1.1)));
$assessmentItemRef->setWeights($weights);
$assessmentItemRef->addOutcomeDeclaration(new OutcomeDeclaration('var1', BaseType::INTEGER, Cardinality::SINGLE));
$assessmentItemRef->addOutcomeDeclaration(new OutcomeDeclaration('var2', BaseType::FLOAT, Cardinality::MULTIPLE));
$assessmentItemRefs = new AssessmentItemRefCollection(array($assessmentItemRef));
$assessmentTest = new AssessmentTest('A01', 'An assessmentTest');
$assessmentSection = new AssessmentSection('S01', 'An assessmentSection', true);
$assessmentSection->setSectionParts($assessmentItemRefs);
$assessmentSections = new AssessmentSectionCollection(array($assessmentSection));
$testPart = new TestPart('P01', $assessmentSections);
$assessmentTest->setTestParts(new TestPartCollection(array($testPart)));
$sessionManager = new SessionManager();
$assessmentTestSession = $sessionManager->createAssessmentTestSession($assessmentTest);
$assessmentTestSession->beginTestSession();
$assessmentTestSession['Q01.var1'] = new Integer(1337);
$variableExpr = $this->createComponentFromXml('<variable identifier="Q01.var1" weightIdentifier="weight1" />');
$variableProcessor = new VariableProcessor($variableExpr);
$variableProcessor->setState($assessmentTestSession);
// -- single cardinality test.
$result = $variableProcessor->process();
$this->assertInstanceOf('qtism\\common\\datatypes\\Float', $result);
$this->assertEquals(1470.7, $result->getValue());
// The value in the state must be intact.
$this->assertEquals(1337, $assessmentTestSession['Q01.var1']->getValue());
// What if the indicated weight is not found?
$variableExpr = $this->createComponentFromXml('<variable identifier="Q01.var1" weightIdentifier="weight2" />');
$variableProcessor->setExpression($variableExpr);
$result = $variableProcessor->process();
$this->assertEquals(1337, $result->getValue());
// -- multiple cardinality test.
$assessmentTestSession['Q01.var2'] = new MultipleContainer(BaseType::FLOAT, array(new Float(10.1), new Float(12.1)));
$variableExpr = $this->createComponentFromXml('<variable identifier="Q01.var2" weightIdentifier="weight1"/>');
$variableProcessor->setExpression($variableExpr);
$result = $variableProcessor->process();
$this->assertEquals(11.11, $result[0]->getValue());
$this->assertEquals(13.31, $result[1]->getValue());
// The value in the state must be unchanged.
$stateVal = $assessmentTestSession['Q01.var2'];
$this->assertEquals(10.1, $stateVal[0]->getValue());
$this->assertEquals(12.1, $stateVal[1]->getValue());
}
public function testMarshallModerate()
{
$factory = new CompactMarshallerFactory();
$component = new ExtendedAssessmentItemRef('Q01', './q01.xml');
$weights = new WeightCollection();
// some noise
$weights[] = new Weight('W01', 1.0);
$weights[] = new Weight('W02', 2.0);
$responseDeclarations = new ResponseDeclarationCollection();
$responseDeclarations[] = new ResponseDeclaration('R01', BaseType::INTEGER, Cardinality::SINGLE);
$responseDeclarations[] = new ResponseDeclaration('R02', BaseType::BOOLEAN, Cardinality::SINGLE);
$outcomeDeclarations = new OutcomeDeclarationCollection();
$outcomeDeclarations[] = new OutcomeDeclaration('O01', BaseType::FLOAT, Cardinality::SINGLE);
$outcomeDeclarations[] = new OutcomeDeclaration('O02', BaseType::FLOAT, Cardinality::SINGLE);
$component->setWeights($weights);
$component->setResponseDeclarations($responseDeclarations);
$component->setOutcomeDeclarations($outcomeDeclarations);
$marshaller = $factory->createMarshaller($component);
$element = $marshaller->marshall($component);
$this->assertInstanceOf('\\DOMElement', $element);
$this->assertEquals('assessmentItemRef', $element->nodeName);
$this->assertEquals('Q01', $element->getAttribute('identifier'));
$this->assertEquals('./q01.xml', $element->getAttribute('href'));
$weightElts = $element->getElementsByTagName('weight');
$this->assertEquals(2, $weightElts->length);
$this->assertEquals('W01', $weightElts->item(0)->getAttribute('identifier'));
$this->assertEquals('W02', $weightElts->item(1)->getAttribute('identifier'));
$responseDeclarationElts = $element->getElementsByTagName('responseDeclaration');
$this->assertEquals(2, $responseDeclarationElts->length);
$this->assertEquals('R01', $responseDeclarationElts->item(0)->getAttribute('identifier'));
$this->assertEquals('R02', $responseDeclarationElts->item(1)->getAttribute('identifier'));
$outcomeDeclarationElts = $element->getElementsByTagName('outcomeDeclaration');
$this->assertEquals(2, $outcomeDeclarationElts->length);
$this->assertEquals('O01', $outcomeDeclarationElts->item(0)->getAttribute('identifier'));
$this->assertEquals('O02', $outcomeDeclarationElts->item(1)->getAttribute('identifier'));
}
/**
* Get the TAO Uri of the Test Definition from an ExtendedAssessmentItemRef object.
*
* @param ExtendedAssessmentItemRef $itemRef
* @return string A URI.
*/
protected static function getTestDefinitionUri(ExtendedAssessmentItemRef $itemRef)
{
$parts = explode('|', $itemRef->getHref());
return $parts[2];
}
/**
* Unmarshall an extended version of an assessmentItemRef DOMElement into
* a ExtendedAssessmentItemRef object.
*
* @return ExtendedAssessmentItemRef A ExtendedAssessmentItemRef object.
*/
protected function unmarshall(DOMElement $element)
{
$baseComponent = parent::unmarshall($element);
$identifier = $baseComponent->getIdentifier();
$href = $baseComponent->getHref();
$compactAssessmentItemRef = new ExtendedAssessmentItemRef($identifier, $href);
$compactAssessmentItemRef->setRequired($baseComponent->isRequired());
$compactAssessmentItemRef->setFixed($baseComponent->isFixed());
$compactAssessmentItemRef->setPreConditions($baseComponent->getPreConditions());
$compactAssessmentItemRef->setBranchRules($baseComponent->getBranchRules());
$compactAssessmentItemRef->setItemSessionControl($baseComponent->getItemSessionControl());
$compactAssessmentItemRef->setTimeLimits($baseComponent->getTimeLimits());
$compactAssessmentItemRef->setTemplateDefaults($baseComponent->getTemplateDefaults());
$compactAssessmentItemRef->setWeights($baseComponent->getWeights());
$compactAssessmentItemRef->setVariableMappings($baseComponent->getVariableMappings());
$compactAssessmentItemRef->setCategories($baseComponent->getCategories());
$responseDeclarationElts = self::getChildElementsByTagName($element, 'responseDeclaration');
$responseDeclarations = new ResponseDeclarationCollection();
foreach ($responseDeclarationElts as $responseDeclarationElt) {
$marshaller = $this->getMarshallerFactory()->createMarshaller($responseDeclarationElt);
$responseDeclarations[] = $marshaller->unmarshall($responseDeclarationElt);
}
$compactAssessmentItemRef->setResponseDeclarations($responseDeclarations);
$outcomeDeclarationElts = self::getChildElementsByTagName($element, 'outcomeDeclaration');
$outcomeDeclarations = new OutcomeDeclarationCollection();
foreach ($outcomeDeclarationElts as $outcomeDeclarationElt) {
$marshaller = $this->getMarshallerFactory()->createMarshaller($outcomeDeclarationElt);
$outcomeDeclarations[] = $marshaller->unmarshall($outcomeDeclarationElt);
}
$compactAssessmentItemRef->setOutcomeDeclarations($outcomeDeclarations);
$responseProcessingElts = self::getChildElementsByTagName($element, 'responseProcessing');
if (count($responseProcessingElts) === 1) {
$marshaller = $this->getMarshallerFactory()->createMarshaller($responseProcessingElts[0]);
$compactAssessmentItemRef->setResponseProcessing($marshaller->unmarshall($responseProcessingElts[0]));
}
if (($adaptive = static::getDOMElementAttributeAs($element, 'adaptive', 'boolean')) !== null) {
$compactAssessmentItemRef->setAdaptive($adaptive);
}
if (($timeDependent = static::getDOMElementAttributeAs($element, 'timeDependent', 'boolean')) !== null) {
$compactAssessmentItemRef->setTimeDependent($timeDependent);
} else {
$msg = "The mandatory attribute 'timeDependent' is missing from element '" . $element->localName . "'.";
throw new UnmarshallingException($msg, $element);
}
return $compactAssessmentItemRef;
}
/**
* @depends testMarshallMinimal
*/
public function testMarshallShufflingGroups()
{
$factory = new CompactMarshallerFactory();
$component = new ExtendedAssessmentItemRef('Q01', './q01.xml');
$group1 = new ShufflingGroup(new IdentifierCollection(array('id1', 'id2', 'id3')));
$group2 = new ShufflingGroup(new IdentifierCollection(array('id4', 'id5', 'id6')));
$shufflingGroups = new ShufflingGroupCollection(array($group1, $group2));
$shufflings = new ShufflingCollection(array(new Shuffling('RESPONSE', $shufflingGroups)));
$component->setShufflings($shufflings);
$marshaller = $factory->createMarshaller($component);
$element = $marshaller->marshall($component);
$this->assertInstanceOf('\\DOMElement', $element);
$this->assertEquals('assessmentItemRef', $element->nodeName);
$this->assertEquals('Q01', $element->getAttribute('identifier'));
$this->assertEquals('./q01.xml', $element->getAttribute('href'));
$shufflingElts = $element->getElementsByTagName('shuffling');
$this->assertEquals(1, $shufflingElts->length);
$this->assertEquals('RESPONSE', $shufflingElts->item(0)->getAttribute('responseIdentifier'));
$shufflingGroupElts = $shufflingElts->item(0)->getElementsByTagName('shufflingGroup');
$this->assertEquals(2, $shufflingGroupElts->length);
$this->assertEquals('id1 id2 id3', $shufflingGroupElts->item(0)->getAttribute('identifiers'));
$this->assertEquals('id4 id5 id6', $shufflingGroupElts->item(1)->getAttribute('identifiers'));
}
/**
* Dereference the file referenced by an assessmentItemRef and add
* outcome/responseDeclarations to the compact one.
*
* @param ExtendedAssessmentItemRef $compactAssessmentItemRef A previously instantiated ExtendedAssessmentItemRef object.
* @param FileResolver $resolver The Resolver to be used to resolver AssessmentItemRef's href attribute.
* @throws XmlStorageException If an error occurs (e.g. file not found at URI or unmarshalling issue) during the dereferencing.
*/
protected static function resolveAssessmentItemRef(ExtendedAssessmentItemRef $compactAssessmentItemRef, FileResolver $resolver)
{
try {
$href = $resolver->resolve($compactAssessmentItemRef->getHref());
$doc = new XmlDocument();
$doc->load($href);
foreach ($doc->getDocumentComponent()->getResponseDeclarations() as $resp) {
$compactAssessmentItemRef->addResponseDeclaration($resp);
}
foreach ($doc->getDocumentComponent()->getOutcomeDeclarations() as $out) {
$compactAssessmentItemRef->addOutcomeDeclaration($out);
}
if ($doc->getDocumentComponent()->hasResponseProcessing() === true) {
$compactAssessmentItemRef->setResponseProcessing($doc->getDocumentComponent()->getResponseProcessing());
}
$compactAssessmentItemRef->setAdaptive($doc->getDocumentComponent()->isAdaptive());
$compactAssessmentItemRef->setTimeDependent($doc->getDocumentComponent()->isTimeDependent());
} catch (Exception $e) {
$msg = "An error occured while unreferencing file '{$href}'.";
throw new XmlStorageException($msg, $e);
}
}
/**
* Dereference the file referenced by an assessmentItemRef and add
* outcome/responseDeclarations to the compact one.
*
* @param \qtism\data\ExtendedAssessmentItemRef $compactAssessmentItemRef A previously instantiated ExtendedAssessmentItemRef object.
* @param \qtism\data\storage\FileResolver $resolver The Resolver to be used to resolver AssessmentItemRef's href attribute.
* @throws \qtism\data\storage\xml\XmlStorageException If an error occurs (e.g. file not found at URI or unmarshalling issue) during the dereferencing.
*/
protected static function resolveAssessmentItemRef(ExtendedAssessmentItemRef $compactAssessmentItemRef, FileResolver $resolver)
{
try {
$href = $resolver->resolve($compactAssessmentItemRef->getHref());
$doc = new XmlDocument();
$doc->load($href);
$item = $doc->getDocumentComponent();
foreach ($item->getResponseDeclarations() as $resp) {
$compactAssessmentItemRef->addResponseDeclaration($resp);
}
foreach ($item->getOutcomeDeclarations() as $out) {
$compactAssessmentItemRef->addOutcomeDeclaration($out);
}
foreach ($item->getTemplateDeclarations() as $tpl) {
$compactAssessmentItemRef->addTemplateDeclaration($tpl);
}
foreach ($item->getModalFeedbackRules() as $modalFeedbackRule) {
$compactAssessmentItemRef->addModalFeedbackRule($modalFeedbackRule);
}
if ($item->hasResponseProcessing() === true) {
$compactAssessmentItemRef->setResponseProcessing($item->getResponseProcessing());
}
if ($item->hasTemplateProcessing() === true) {
$compactAssessmentItemRef->setTemplateProcessing($item->getTemplateProcessing());
}
$compactAssessmentItemRef->setShufflings($item->getShufflings());
$compactAssessmentItemRef->setAdaptive($item->isAdaptive());
$compactAssessmentItemRef->setTimeDependent($item->isTimeDependent());
$compactAssessmentItemRef->setEndAttemptIdentifiers($item->getEndAttemptIdentifiers());
} catch (Exception $e) {
$msg = "An error occured while unreferencing file '{$href}'.";
throw new XmlStorageException($msg, XmlStorageException::RESOLUTION, $e);
}
}
