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   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * Quiz events tests.
  19   *
  20   * @package    mod_quiz
  21   * @category   phpunit
  22   * @copyright  2013 Adrian Greeve
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  defined('MOODLE_INTERNAL') || die();
  27  
  28  global $CFG;
  29  require_once($CFG->dirroot . '/question/previewlib.php');
  30  
  31  /**
  32   * Unit tests for question preview.
  33   *
  34   * @package    question
  35   * @category   phpunit
  36   * @copyright  2016 Andrew Nicols
  37   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  38   */
  39  class question_previewlib_testcase extends advanced_testcase {
  40  
  41      /**
  42       * Setup some convenience test data with a single attempt.
  43       *
  44       * @return question_usage_by_activity
  45       */
  46      protected function prepare_question_data() {
  47          $this->resetAfterTest(true);
  48  
  49          $questiongenerator = $this->getDataGenerator()->get_plugin_generator('core_question');
  50  
  51          // Create a questions and start the preview.
  52          $cat = $questiongenerator->create_question_category();
  53  
  54          $quba = question_engine::make_questions_usage_by_activity('core_question_preview', context_system::instance());
  55          $quba->set_preferred_behaviour('deferredfeedback');
  56          $questiondata = $questiongenerator->create_question('numerical', null, array('category' => $cat->id));
  57          $question = question_bank::load_question($questiondata->id);
  58          $quba->add_question($question);
  59          $quba->start_all_questions();
  60          question_engine::save_questions_usage_by_activity($quba);
  61  
  62          return $quba;
  63      }
  64  
  65      /**
  66       * Test the attempt deleted event.
  67       */
  68      public function test_question_preview_cron() {
  69          global $DB;
  70  
  71          // Create some quiz data.
  72          // This will create two questions.
  73          $quba1 = $this->prepare_question_data();
  74  
  75          // Run the cron.
  76          ob_start();
  77          question_preview_cron();
  78          $output = ob_get_clean();
  79          $this->assertEquals("\n  Cleaning up old question previews...done.\n", $output);
  80  
  81          // The attempt should not have been removed.
  82          // There should be one question usage with two question attempts.
  83          $this->assertEquals(1, $DB->count_records('question_usages', array('id' => $quba1->get_id())));
  84          $this->assertEquals(1, $DB->count_records('question_attempts', array('questionusageid' => $quba1->get_id())));
  85          $this->assertEquals(1, $DB->count_records('question_attempt_steps'));
  86          $this->assertEquals(1, $DB->count_records('question_attempt_step_data'));
  87  
  88          // Update the timemodified and timecreated to be in the past.
  89          $DB->set_field('question_attempts', 'timemodified', time() - WEEKSECS);
  90          $DB->set_field('question_attempt_steps', 'timecreated', time() - WEEKSECS);
  91  
  92          // Create some quiz data.
  93          // This will create two questions.
  94          $quba2 = $this->prepare_question_data();
  95  
  96          // There will now be 2 usages, etc.
  97          $this->assertEquals(2, $DB->count_records('question_usages'));
  98          $this->assertEquals(2, $DB->count_records('question_attempts'));
  99          $this->assertEquals(2, $DB->count_records('question_attempt_steps'));
 100          $this->assertEquals(2, $DB->count_records('question_attempt_step_data'));
 101  
 102          // Run the cron again.
 103          // $quba1 will be removed, but $quba2 should still be present.
 104          ob_start();
 105          question_preview_cron();
 106          $output = ob_get_clean();
 107          $this->assertEquals("\n  Cleaning up old question previews...done.\n", $output);
 108  
 109          $this->assertEquals(0, $DB->count_records('question_usages', array('id' => $quba1->get_id())));
 110          $this->assertEquals(0, $DB->count_records('question_attempts', array('questionusageid' => $quba1->get_id())));
 111          $this->assertEquals(1, $DB->count_records('question_usages', array('id' => $quba2->get_id())));
 112          $this->assertEquals(1, $DB->count_records('question_attempts', array('questionusageid' => $quba2->get_id())));
 113          $this->assertEquals(1, $DB->count_records('question_attempt_steps'));
 114          $this->assertEquals(1, $DB->count_records('question_attempt_step_data'));
 115      }
 116  }