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Differences Between: [Versions 39 and 311] [Versions 39 and 400] [Versions 39 and 401] [Versions 39 and 402] [Versions 39 and 403]

   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   * Unit tests for the calculated_random_question_summary class.
  19   *
  20   * @package    core_question
  21   * @category   test
  22   * @copyright  2018 Shamim Rezaie <shamim@moodle.com>
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  defined('MOODLE_INTERNAL') || die();
  27  
  28  use core_question\statistics\questions\calculated_question_summary;
  29  
  30  /**
  31   * Class core_question_calculated_question_summary_testcase
  32   *
  33   * @copyright  2018 Shamim Rezaie <shamim@moodle.com>
  34   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  35   */
  36  class core_question_calculated_question_summary_testcase extends advanced_testcase {
  37  
  38      /**
  39       * Provider for test_get_min_max_of.
  40       *
  41       * @return array
  42       */
  43      public function get_min_max_provider() {
  44          return [
  45              'negative number and null' => [
  46                  [
  47                      (object)['questionid' => 1, 'index' => 2],
  48                      (object)['questionid' => 2, 'index' => -7],
  49                      (object)['questionid' => 3, 'index' => null],
  50                      (object)['questionid' => 4, 'index' => 12],
  51                  ],
  52                  [-7, 12]
  53              ],
  54              'null and negative number' => [
  55                  [
  56                      (object)['questionid' => 1, 'index' => 2],
  57                      (object)['questionid' => 2, 'index' => null],
  58                      (object)['questionid' => 3, 'index' => -7],
  59                      (object)['questionid' => 4, 'index' => 12],
  60                  ],
  61                  [-7, 12]
  62              ],
  63              'negative number and null as maximum' => [
  64                  [
  65                      (object)['questionid' => 1, 'index' => -2],
  66                      (object)['questionid' => 2, 'index' => null],
  67                      (object)['questionid' => 3, 'index' => -7],
  68                  ],
  69                  [-7, null]
  70              ],
  71              'zero and null' => [
  72                  [
  73                      (object)['questionid' => 1, 'index' => 2],
  74                      (object)['questionid' => 2, 'index' => 0],
  75                      (object)['questionid' => 3, 'index' => null],
  76                      (object)['questionid' => 4, 'index' => 12],
  77                  ],
  78                  [0, 12]
  79              ],
  80              'null as minimum' => [
  81                  [
  82                      (object)['questionid' => 1, 'index' => 2],
  83                      (object)['questionid' => 2, 'index' => null],
  84                      (object)['questionid' => 3, 'index' => 12],
  85                  ],
  86                  [null, 12]
  87              ],
  88              'null and null' => [
  89                  [
  90                      (object)['questionid' => 1, 'index' => 2],
  91                      (object)['questionid' => 2, 'index' => null],
  92                      (object)['questionid' => 3, 'index' => null],
  93                  ],
  94                  [null, 2]
  95              ],
  96          ];
  97      }
  98  
  99      /**
 100       * Unit test for get_min_max_of() method.
 101       *
 102       * @dataProvider get_min_max_provider
 103       */
 104      public function test_get_min_max_of($subqstats, $expected) {
 105          $calculatedsummary = new calculated_question_summary(null, null, $subqstats);
 106          $res = $calculatedsummary->get_min_max_of('index');
 107          $this->assertEquals($expected, $res);
 108      }
 109  
 110      /**
 111       * Provider for test_get_min_max_of.
 112       *
 113       * @return array
 114       */
 115      public function get_sd_min_max_provider() {
 116          return [
 117              'null and number' => [
 118                  [
 119                      (object)['questionid' => 1, 'sd' => 0.2, 'maxmark' => 0.5],
 120                      (object)['questionid' => 2, 'sd' => null, 'maxmark' => 1],
 121                      (object)['questionid' => 3, 'sd' => 0.1049, 'maxmark' => 1],
 122                      (object)['questionid' => 4, 'sd' => 0.12, 'maxmark' => 1],
 123                  ],
 124                  [null, 0.4]
 125              ],
 126              'null and zero' => [
 127                  [
 128                      (object)['questionid' => 1, 'sd' => 0.2, 'maxmark' => 0.5],
 129                      (object)['questionid' => 2, 'sd' => null, 'maxmark' => 1],
 130                      (object)['questionid' => 3, 'sd' => 0, 'maxmark' => 1],
 131                      (object)['questionid' => 4, 'sd' => 0.12, 'maxmark' => 1],
 132                  ],
 133                  [0, 0.4]
 134              ],
 135              'zero mark' => [
 136                  [
 137                      (object)['questionid' => 1, 'sd' => 0.2, 'maxmark' => 0],
 138                      (object)['questionid' => 2, 'sd' => 0.1049, 'maxmark' => 1],
 139                  ],
 140                  [null, 0.1049]
 141              ],
 142              'nonzero and nonzero' => [
 143                  [
 144                      (object)['questionid' => 1, 'sd' => 0.2, 'maxmark' => 0.5],
 145                      (object)['questionid' => 2, 'sd' => 0.7, 'maxmark' => 2],
 146                  ],
 147                  [0.35, 0.4]
 148              ],
 149          ];
 150      }
 151  
 152      /**
 153       * Unit test for get_min_max_of_sd() method.
 154       *
 155       * @dataProvider get_sd_min_max_provider
 156       */
 157      public function test_get_min_max_of_sd($subqstats, $expected) {
 158          $calculatedsummary = new calculated_question_summary(null, null, $subqstats);
 159          $res = $calculatedsummary->get_min_max_of('sd');
 160          $this->assertEquals($expected, $res);
 161      }
 162  }