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Differences Between: [Versions 310 and 401] [Versions 39 and 401]

   1  <?php
   2  // This file is part of Moodle - https://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  namespace core_analytics;
  18  
  19  defined('MOODLE_INTERNAL') || die();
  20  
  21  require_once (__DIR__ . '/fixtures/test_indicator_fullname.php');
  22  require_once (__DIR__ . '/fixtures/test_target_shortname.php');
  23  
  24  /**
  25   * Unit tests for the analytics stats.
  26   *
  27   * @package     core_analytics
  28   * @category    test
  29   * @copyright 2019 David Mudrák <david@moodle.com>
  30   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  31   */
  32  class stats_test extends \advanced_testcase {
  33  
  34      /**
  35       * Set up the test environment.
  36       */
  37      public function setUp(): void {
  38  
  39          $this->setAdminUser();
  40      }
  41  
  42      /**
  43       * Test the {@link \core_analytics\stats::enabled_models()} implementation.
  44       */
  45      public function test_enabled_models() {
  46  
  47          $this->resetAfterTest(true);
  48  
  49          // By default, sites have {@link \core_course\analytics\target\no_teaching} and
  50          // {@link \core_user\analytics\target\upcoming_activities_due} enabled.
  51          $this->assertEquals(4, \core_analytics\stats::enabled_models());
  52  
  53          $model = \core_analytics\model::create(
  54              \core_analytics\manager::get_target('\core_course\analytics\target\course_dropout'),
  55              [
  56                  \core_analytics\manager::get_indicator('\core\analytics\indicator\any_write_action'),
  57              ]
  58          );
  59  
  60          // Purely adding a new model does not make it included in the stats.
  61          $this->assertEquals(4, \core_analytics\stats::enabled_models());
  62  
  63          // New models must be enabled to have them counted.
  64          $model->enable('\core\analytics\time_splitting\quarters');
  65          $this->assertEquals(5, \core_analytics\stats::enabled_models());
  66      }
  67  
  68      /**
  69       * Test the {@link \core_analytics\stats::predictions()} implementation.
  70       */
  71      public function test_predictions() {
  72  
  73          $this->resetAfterTest(true);
  74  
  75          $model = \core_analytics\model::create(
  76              \core_analytics\manager::get_target('test_target_shortname'),
  77              [
  78                  \core_analytics\manager::get_indicator('test_indicator_fullname'),
  79              ]
  80          );
  81  
  82          $model->enable('\core\analytics\time_splitting\no_splitting');
  83  
  84          // Train the model.
  85          $this->getDataGenerator()->create_course(['shortname' => 'a', 'fullname' => 'a', 'visible' => 1]);
  86          $this->getDataGenerator()->create_course(['shortname' => 'b', 'fullname' => 'b', 'visible' => 1]);
  87          $model->train();
  88  
  89          // No predictions yet.
  90          $this->assertEquals(0, \core_analytics\stats::predictions());
  91  
  92          // Get one new prediction.
  93          $this->getDataGenerator()->create_course(['shortname' => 'aa', 'fullname' => 'aa', 'visible' => 0]);
  94          $result = $model->predict();
  95  
  96          $this->assertEquals(1, count($result->predictions));
  97          $this->assertEquals(1, \core_analytics\stats::predictions());
  98  
  99          // Nothing changes if there is no new prediction.
 100          $result = $model->predict();
 101          $this->assertFalse(isset($result->predictions));
 102          $this->assertEquals(1, \core_analytics\stats::predictions());
 103  
 104          // Get two more predictions, we have three in total now.
 105          $this->getDataGenerator()->create_course(['shortname' => 'bb', 'fullname' => 'bb', 'visible' => 0]);
 106          $this->getDataGenerator()->create_course(['shortname' => 'cc', 'fullname' => 'cc', 'visible' => 0]);
 107  
 108          $result = $model->predict();
 109          $this->assertEquals(2, count($result->predictions));
 110          $this->assertEquals(3, \core_analytics\stats::predictions());
 111      }
 112  
 113      /**
 114       * Test the {@link \core_analytics\stats::actions()} and {@link \core_analytics\stats::actions_not_useful()} implementation.
 115       */
 116      public function test_actions() {
 117          global $DB;
 118          $this->resetAfterTest(true);
 119  
 120          $model = \core_analytics\model::create(
 121              \core_analytics\manager::get_target('test_target_shortname'),
 122              [
 123                  \core_analytics\manager::get_indicator('test_indicator_fullname'),
 124              ]
 125          );
 126  
 127          $model->enable('\core\analytics\time_splitting\no_splitting');
 128  
 129          // Train the model.
 130          $this->getDataGenerator()->create_course(['shortname' => 'a', 'fullname' => 'a', 'visible' => 1]);
 131          $this->getDataGenerator()->create_course(['shortname' => 'b', 'fullname' => 'b', 'visible' => 1]);
 132          $model->train();
 133  
 134          // Generate two predictions.
 135          $this->getDataGenerator()->create_course(['shortname' => 'aa', 'fullname' => 'aa', 'visible' => 0]);
 136          $this->getDataGenerator()->create_course(['shortname' => 'bb', 'fullname' => 'bb', 'visible' => 0]);
 137          $model->predict();
 138  
 139          list($p1, $p2) = array_values($DB->get_records('analytics_predictions'));
 140  
 141          $p1 = new \core_analytics\prediction($p1, []);
 142          $p2 = new \core_analytics\prediction($p2, []);
 143  
 144          // No actions executed at the start.
 145          $this->assertEquals(0, \core_analytics\stats::actions());
 146          $this->assertEquals(0, \core_analytics\stats::actions_not_useful());
 147  
 148          // The user has acknowledged the first prediction.
 149          $p1->action_executed(\core_analytics\prediction::ACTION_FIXED, $model->get_target());
 150          $this->assertEquals(1, \core_analytics\stats::actions());
 151          $this->assertEquals(0, \core_analytics\stats::actions_not_useful());
 152  
 153          // The user has marked the other prediction as not useful.
 154          $p2->action_executed(\core_analytics\prediction::ACTION_INCORRECTLY_FLAGGED, $model->get_target());
 155          $this->assertEquals(2, \core_analytics\stats::actions());
 156          $this->assertEquals(1, \core_analytics\stats::actions_not_useful());
 157      }
 158  }