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Differences Between: [Versions 311 and 400] [Versions 311 and 401] [Versions 311 and 402] [Versions 311 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  namespace qtype_multichoice;
  18  
  19  use qtype_multichoice;
  20  use qtype_multichoice_edit_form;
  21  use question_possible_response;
  22  
  23  defined('MOODLE_INTERNAL') || die();
  24  
  25  global $CFG;
  26  require_once($CFG->dirroot . '/question/engine/tests/helpers.php');
  27  require_once($CFG->dirroot . '/question/type/multichoice/questiontype.php');
  28  require_once($CFG->dirroot . '/question/type/edit_question_form.php');
  29  require_once($CFG->dirroot . '/question/type/multichoice/edit_multichoice_form.php');
  30  
  31  /**
  32   * Unit tests for the multiple choice question definition class.
  33   *
  34   * @package    qtype_multichoice
  35   * @copyright  2009 The Open University
  36   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  37   */
  38  class question_type_test extends \advanced_testcase {
  39      protected $qtype;
  40  
  41      protected function setUp(): void {
  42          $this->qtype = new qtype_multichoice();
  43      }
  44  
  45      protected function tearDown(): void {
  46          $this->qtype = null;
  47      }
  48  
  49      public function test_name() {
  50          $this->assertEquals($this->qtype->name(), 'multichoice');
  51      }
  52  
  53      protected function get_test_question_data() {
  54          $q = new \stdClass();
  55          $q->id = 1;
  56          $q->options = new \stdClass();
  57          $q->options->single = true;
  58          $q->options->answers[1] = (object) array('answer' => 'frog',
  59                  'answerformat' => FORMAT_HTML, 'fraction' => 1);
  60          $q->options->answers[2] = (object) array('answer' => 'toad',
  61                  'answerformat' => FORMAT_HTML, 'fraction' => 0);
  62  
  63          return $q;
  64      }
  65  
  66      public function test_can_analyse_responses() {
  67          $this->assertTrue($this->qtype->can_analyse_responses());
  68      }
  69  
  70      public function test_get_random_guess_score() {
  71          $q = $this->get_test_question_data();
  72          $this->assertEquals(0.5, $this->qtype->get_random_guess_score($q));
  73      }
  74  
  75      public function test_get_random_guess_score_multi() {
  76          $q = $this->get_test_question_data();
  77          $q->options->single = false;
  78          $this->assertNull($this->qtype->get_random_guess_score($q));
  79      }
  80  
  81      public function test_get_possible_responses_single() {
  82          $q = $this->get_test_question_data();
  83          $responses = $this->qtype->get_possible_responses($q);
  84  
  85          $this->assertEquals(array(
  86              $q->id => array(
  87                  1 => new question_possible_response('frog', 1),
  88                  2 => new question_possible_response('toad', 0),
  89                  null => question_possible_response::no_response(),
  90              )), $this->qtype->get_possible_responses($q));
  91      }
  92  
  93      public function test_get_possible_responses_multi() {
  94          $q = $this->get_test_question_data();
  95          $q->options->single = false;
  96  
  97          $this->assertEquals(array(
  98              1 => array(1 => new question_possible_response('frog', 1)),
  99              2 => array(2 => new question_possible_response('toad', 0)),
 100          ), $this->qtype->get_possible_responses($q));
 101      }
 102  
 103      public function get_question_saving_which() {
 104          return array(array('two_of_four'), array('one_of_four'));
 105      }
 106  
 107      /**
 108       * @dataProvider get_question_saving_which
 109       */
 110      public function test_question_saving_two_of_four($which) {
 111          $this->resetAfterTest(true);
 112          $this->setAdminUser();
 113  
 114          $questiondata = \test_question_maker::get_question_data('multichoice', $which);
 115          $formdata = \test_question_maker::get_question_form_data('multichoice', $which);
 116  
 117          $generator = $this->getDataGenerator()->get_plugin_generator('core_question');
 118          $cat = $generator->create_question_category(array());
 119  
 120          $formdata->category = "{$cat->id},{$cat->contextid}";
 121          qtype_multichoice_edit_form::mock_submit((array)$formdata);
 122  
 123          $form = \qtype_multichoice_test_helper::get_question_editing_form($cat, $questiondata);
 124  
 125          $this->assertTrue($form->is_validated());
 126  
 127          $fromform = $form->get_data();
 128  
 129          $returnedfromsave = $this->qtype->save_question($questiondata, $fromform);
 130          $actualquestionsdata = question_load_questions(array($returnedfromsave->id));
 131          $actualquestiondata = end($actualquestionsdata);
 132  
 133          foreach ($questiondata as $property => $value) {
 134              if (!in_array($property, array('id', 'version', 'timemodified', 'timecreated', 'options', 'hints', 'stamp'))) {
 135                  $this->assertEquals($value, $actualquestiondata->$property);
 136              }
 137          }
 138  
 139          foreach ($questiondata->options as $optionname => $value) {
 140              if ($optionname != 'answers') {
 141                  $this->assertEquals($value, $actualquestiondata->options->$optionname);
 142              }
 143          }
 144  
 145          foreach ($questiondata->hints as $hint) {
 146              $actualhint = array_shift($actualquestiondata->hints);
 147              foreach ($hint as $property => $value) {
 148                  if (!in_array($property, array('id', 'questionid', 'options'))) {
 149                      $this->assertEquals($value, $actualhint->$property);
 150                  }
 151              }
 152          }
 153  
 154          foreach ($questiondata->options->answers as $answer) {
 155              $actualanswer = array_shift($actualquestiondata->options->answers);
 156              foreach ($answer as $ansproperty => $ansvalue) {
 157                  // This question does not use 'answerformat', will ignore it.
 158                  if (!in_array($ansproperty, array('id', 'question', 'answerformat'))) {
 159                      $this->assertEquals($ansvalue, $actualanswer->$ansproperty);
 160                  }
 161              }
 162          }
 163      }
 164  
 165      /**
 166       * Test to make sure that loading of question options works, including in an error case.
 167       */
 168      public function test_get_question_options() {
 169          global $DB;
 170  
 171          $this->resetAfterTest(true);
 172          $this->setAdminUser();
 173  
 174          // Create a complete, in DB question to use.
 175          $questiondata = \test_question_maker::get_question_data('multichoice', 'two_of_four');
 176          $formdata = \test_question_maker::get_question_form_data('multichoice', 'two_of_four');
 177  
 178          $generator = $this->getDataGenerator()->get_plugin_generator('core_question');
 179          $cat = $generator->create_question_category(array());
 180  
 181          $formdata->category = "{$cat->id},{$cat->contextid}";
 182          qtype_multichoice_edit_form::mock_submit((array)$formdata);
 183  
 184          $form = \qtype_multichoice_test_helper::get_question_editing_form($cat, $questiondata);
 185  
 186          $this->assertTrue($form->is_validated());
 187  
 188          $fromform = $form->get_data();
 189  
 190          $returnedfromsave = $this->qtype->save_question($questiondata, $fromform);
 191  
 192          // Now get just the raw DB record.
 193          $question = $DB->get_record('question', ['id' => $returnedfromsave->id], '*', MUST_EXIST);
 194  
 195          // Load it.
 196          $this->qtype->get_question_options($question);
 197          $this->assertDebuggingNotCalled();
 198          $this->assertInstanceOf(\stdClass::class, $question->options);
 199  
 200          $options = $question->options;
 201          $this->assertEquals($question->id, $options->questionid);
 202          $this->assertEquals(0, $options->single);
 203  
 204          $this->assertCount(4, $options->answers);
 205  
 206          // Now we are going to delete the options record.
 207          $DB->delete_records('qtype_multichoice_options', ['questionid' => $question->id]);
 208  
 209          // Now see what happens.
 210          $question = $DB->get_record('question', ['id' => $returnedfromsave->id], '*', MUST_EXIST);
 211          $this->qtype->get_question_options($question);
 212  
 213          $this->assertDebuggingCalled('Question ID '.$question->id.' was missing an options record. Using default.');
 214          $this->assertInstanceOf(\stdClass::class, $question->options);
 215          $options = $question->options;
 216          $this->assertEquals($question->id, $options->questionid);
 217          $this->assertCount(4, $options->answers);
 218  
 219          $this->assertEquals(get_string('correctfeedbackdefault', 'question'), $options->correctfeedback);
 220          $this->assertEquals(FORMAT_HTML, $options->correctfeedbackformat);
 221  
 222          // We no longer know how many answers, so it just has to guess with the default value.
 223          $this->assertEquals(get_config('qtype_multichoice', 'answerhowmany'), $options->single);
 224  
 225          // And finally we try again with no answer either.
 226          $DB->delete_records('question_answers', ['question' => $question->id]);
 227  
 228          $question = $DB->get_record('question', ['id' => $returnedfromsave->id], '*', MUST_EXIST);
 229          $this->qtype->get_question_options($question);
 230  
 231          $this->assertDebuggingCalled('Question ID '.$question->id.' was missing an options record. Using default.');
 232          $this->assertInstanceOf(\stdClass::class, $question->options);
 233          $options = $question->options;
 234          $this->assertEquals($question->id, $options->questionid);
 235          $this->assertCount(0, $options->answers);
 236      }
 237  }