public function testOccurences()
{
$assessmentItemRefs = new AssessmentItemRefCollection();
$assessmentItemRefs[] = new AssessmentItemRef('Q1', 'Q1.xml');
$assessmentItemRefs[] = new AssessmentItemRef('Q2', 'Q2.xml');
$assessmentItemRefs[] = new AssessmentItemRef('Q3', 'Q3.xml');
$assessmentSections = new AssessmentSectionCollection();
$assessmentSections[] = new AssessmentSection('S1', 'Section 1', true);
$assessmentSections['S1']->setSectionParts($assessmentItemRefs);
$testParts = new TestPartCollection();
$testParts[] = new TestPart('T1', $assessmentSections);
$assessmentTest = new AssessmentTest('test', 'A Test', $testParts);
$route = new Route();
$route->addRouteItem($assessmentItemRefs['Q1'], $assessmentSections['S1'], $testParts['T1'], $assessmentTest);
$route->addRouteItem($assessmentItemRefs['Q2'], $assessmentSections['S1'], $testParts['T1'], $assessmentTest);
$route->addRouteItem($assessmentItemRefs['Q3'], $assessmentSections['S1'], $testParts['T1'], $assessmentTest);
$this->assertEquals(1, $route->getOccurenceCount($assessmentItemRefs['Q1']));
$this->assertEquals(1, $route->getOccurenceCount($assessmentItemRefs['Q2']));
$this->assertEquals(1, $route->getOccurenceCount($assessmentItemRefs['Q3']));
$route->addRouteItem($assessmentItemRefs['Q3'], $assessmentSections['S1'], $testParts['T1'], $assessmentTest);
$this->assertEquals(2, $route->getOccurenceCount($assessmentItemRefs['Q3']));
// Get the second route item in the route.
$routeItem2 = $route->getRouteItemAt(1);
$this->assertEquals('Q2', $routeItem2->getAssessmentItemRef()->getIdentifier());
$this->assertEquals(0, $routeItem2->getOccurence());
$routeItem3 = $route->getRouteItemAt(2);
$this->assertEquals('Q3', $routeItem3->getAssessmentItemRef()->getIdentifier());
$this->assertEquals(0, $routeItem3->getOccurence());
$routeItem4 = $route->getRouteItemAt(3);
$this->assertEquals('Q3', $routeItem4->getAssessmentItemRef()->getIdentifier());
$this->assertEquals(1, $routeItem4->getOccurence());
}
