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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  namespace quiz_statistics;
  17  
  18  defined('MOODLE_INTERNAL') || die();
  19  
  20  global $CFG;
  21  require_once($CFG->dirroot . '/mod/quiz/tests/quiz_question_helper_test_trait.php');
  22  
  23  use core\task\manager;
  24  use quiz_statistics\task\recalculate;
  25  use quiz_statistics\tests\statistics_helper;
  26  use quiz_statistics\tests\statistics_test_trait;
  27  
  28  /**
  29   * Unit tests for attempt_deleted observer
  30   *
  31   * @package   quiz_statistics
  32   * @copyright 2023 onwards Catalyst IT EU {@link https://catalyst-eu.net}
  33   * @author    Mark Johnson <mark.johnson@catalyst-eu.net>
  34   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  35   * @covers    \quiz_statistics\quiz_attempt_deleted
  36   */
  37  class quiz_attempt_deleted_test extends \advanced_testcase {
  38      use \quiz_question_helper_test_trait;
  39      use statistics_test_trait;
  40  
  41      /**
  42       * Deleting an attempt should queue the recalculation task for that quiz in 1 hour's time.
  43       *
  44       * @return void
  45       */
  46      public function test_queue_task_on_deletion(): void {
  47          [$user, $quiz] = $this->create_test_data();
  48          $this->attempt_quiz($quiz, $user);
  49          [, , $attempt] = $this->attempt_quiz($quiz, $user, 2);
  50          statistics_helper::run_pending_recalculation_tasks(true);
  51  
  52          $tasks = manager::get_adhoc_tasks(recalculate::class);
  53          $this->assertEmpty($tasks);
  54  
  55          quiz_delete_attempt($attempt->get_attemptid(), $quiz);
  56  
  57          $tasks = manager::get_adhoc_tasks(recalculate::class);
  58          $this->assertCount(1, $tasks);
  59          $task = reset($tasks);
  60          $this->assert_task_is_queued_for_quiz($task, $quiz);
  61      }
  62  
  63      /**
  64       * Deleting multiple attempts of the same quiz should only queue one instance of the task.
  65       *
  66       * @return void
  67       */
  68      public function test_queue_single_task_for_multiple_deletions(): void {
  69          [$user1, $quiz] = $this->create_test_data();
  70          $user2 = $this->getDataGenerator()->create_user();
  71          $this->attempt_quiz($quiz, $user1);
  72          [, , $attempt1] = $this->attempt_quiz($quiz, $user1, 2);
  73          $this->attempt_quiz($quiz, $user2);
  74          [, , $attempt2] = $this->attempt_quiz($quiz, $user2, 2);
  75          statistics_helper::run_pending_recalculation_tasks(true);
  76  
  77          $tasks = manager::get_adhoc_tasks(recalculate::class);
  78          $this->assertEmpty($tasks);
  79  
  80          quiz_delete_attempt($attempt1->get_attemptid(), $quiz);
  81          quiz_delete_attempt($attempt2->get_attemptid(), $quiz);
  82  
  83          $tasks = manager::get_adhoc_tasks(recalculate::class);
  84          $this->assertCount(1, $tasks);
  85          $task = reset($tasks);
  86          $this->assert_task_is_queued_for_quiz($task, $quiz);
  87      }
  88  
  89      /**
  90       * Deleting another attempt after processing the task should queue a new task.
  91       *
  92       * @return void
  93       */
  94      public function test_queue_new_task_after_processing(): void {
  95          [$user1, $quiz, $course] = $this->create_test_data();
  96          $user2 = $this->getDataGenerator()->create_user();
  97          $this->attempt_quiz($quiz, $user1);
  98          [, , $attempt1] = $this->attempt_quiz($quiz, $user1, 2);
  99          $this->attempt_quiz($quiz, $user2);
 100          [, , $attempt2] = $this->attempt_quiz($quiz, $user2, 2);
 101          statistics_helper::run_pending_recalculation_tasks(true);
 102  
 103          $tasks = manager::get_adhoc_tasks(recalculate::class);
 104          $this->assertEmpty($tasks);
 105  
 106          quiz_delete_attempt($attempt1->get_attemptid(), $quiz);
 107  
 108          $tasks = manager::get_adhoc_tasks(recalculate::class);
 109          $this->assertCount(1, $tasks);
 110  
 111          $this->expectOutputRegex("~Re-calculating statistics for quiz {$quiz->name} \({$quiz->id}\) " .
 112              "from course {$course->shortname} \({$course->id}\) with 3 attempts~");
 113          statistics_helper::run_pending_recalculation_tasks();
 114  
 115          $tasks = manager::get_adhoc_tasks(recalculate::class);
 116          $this->assertEmpty($tasks);
 117  
 118          quiz_delete_attempt($attempt2->get_attemptid(), $quiz);
 119  
 120          $tasks = manager::get_adhoc_tasks(recalculate::class);
 121          $this->assertCount(1, $tasks);
 122  
 123          $task = reset($tasks);
 124          $this->assert_task_is_queued_for_quiz($task, $quiz);
 125      }
 126  
 127      /**
 128       * Deleting attempts from different quizzes will queue a task for each.
 129       *
 130       * @return void
 131       */
 132      public function test_queue_separate_tasks_for_multiple_quizzes(): void {
 133          [$user1, $quiz1] = $this->create_test_data();
 134          [$user2, $quiz2] = $this->create_test_data();
 135          $this->attempt_quiz($quiz1, $user1);
 136          [, , $attempt1] = $this->attempt_quiz($quiz1, $user1, 2);
 137          $this->attempt_quiz($quiz2, $user2);
 138          [, , $attempt2] = $this->attempt_quiz($quiz2, $user2, 2);
 139          statistics_helper::run_pending_recalculation_tasks(true);
 140  
 141          $tasks = manager::get_adhoc_tasks(recalculate::class);
 142          $this->assertEmpty($tasks);
 143  
 144          quiz_delete_attempt($attempt1->get_attemptid(), $quiz1);
 145          quiz_delete_attempt($attempt2->get_attemptid(), $quiz2);
 146  
 147          $tasks = manager::get_adhoc_tasks(recalculate::class);
 148          $this->assertCount(2, $tasks);
 149          $task1 = array_shift($tasks);
 150          $this->assert_task_is_queued_for_quiz($task1, $quiz1);
 151          $task2 = array_shift($tasks);
 152          $this->assert_task_is_queued_for_quiz($task2, $quiz2);
 153      }
 154  }