question/tests/previewlib_test.php

   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 }