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());
}
/**
* 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);
}
}
