public function QuizGradingTestCase::testManualWeightedScore in Quiz 7.5

Test question weights.

File

tests/QuizGradingTestCase.test, line 78

Unit tests for the quiz question Module.

Class

QuizGradingTestCase

Base test class for Quiz questions.

Code

public function testManualWeightedScore() {
  $question_node1 = $this
    ->drupalCreateNode(array(
    'type' => 'short_answer',
    'correct_answer_evaluation' => ShortAnswerQuestion::ANSWER_MANUAL,
    'correct_answer' => 'the Zero One Infinity rule',
  ));
  $quiz_node = $this
    ->linkQuestionToQuiz($question_node1);
  $question_node2 = $this
    ->drupalCreateNode(array(
    'type' => 'truefalse',
    'correct_answer' => 1,
  ));
  $this
    ->linkQuestionToQuiz($question_node2, $quiz_node);

  // Link the question. Make a 10 point quiz with a 7 point SA and 3 point TF.
  db_update('quiz_node_relationship')
    ->condition('child_nid', $question_node1->nid)
    ->fields(array(
    'max_score' => 7,
  ))
    ->execute();
  db_update('quiz_node_relationship')
    ->condition('child_nid', $question_node2->nid)
    ->fields(array(
    'max_score' => 3,
  ))
    ->execute();

  // Login as non-admin.
  $this
    ->drupalLogin($this->user);

  // Test correct question.
  $this
    ->drupalGet("node/{$quiz_node->nid}/take");
  $result_id = _quiz_active_result_id($this->user->uid, $quiz_node->nid, $quiz_node->vid);
  $this
    ->drupalPost(NULL, array(
    "question[{$question_node1->nid}][answer]" => 'blah blah',
  ), t('Next'));
  $this
    ->drupalPost(NULL, array(
    "question[{$question_node2->nid}][answer]" => 1,
  ), t('Finish'));
  $this
    ->assertText('You got 3 of 10 possible points.');
  $url_of_result = $this
    ->getUrl();
  $admin_url_of_result = preg_replace('#quiz-results/(\\d+)#', 'quiz/results/$1', $this
    ->getUrl());

  // Test grading the question.
  $this
    ->drupalLogin($this->admin);
  $this
    ->drupalGet($admin_url_of_result);
  $this
    ->drupalPost(NULL, array(
    "question[0][score]" => 3,
  ), t('Save score'));

  // Make sure the values in the database are correct. We scored 3 points, but
  // this is out of the weighted maximum. So make sure that gets calculated
  // correctly. The score should be be x out of 5 points, but the weighted is

  //7 points. Weighted by a ratio of 1.4 the question score should be 2.14.
  $qra1 = _quiz_question_response_get_instance($result_id, $question_node1);
  $this
    ->assertEqual($qra1->points_awarded, 3);
  $score = db_select('quiz_short_answer_user_answers', 'qs')
    ->condition('result_answer_id', $qra1->result_answer_id)
    ->fields('qs', array(
    'score',
  ))
    ->execute()
    ->fetchField();
  $this
    ->assertEqual(round($score, 2), 2.14);
  $qra2 = _quiz_question_response_get_instance($result_id, $question_node2);
  $this
    ->assertEqual($qra2->points_awarded, 3);

  // We got 3 + 3 points out of 10.
  // Unweighted we would have received 2.14 + 1 point.
  $quiz_result = quiz_result_load($result_id);
  $this
    ->assertEqual($quiz_result->score, 60);
}