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Differences Between: [Versions 310 and 401] [Versions 311 and 401] [Versions 39 and 401] [Versions 401 and 402] [Versions 401 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 (some of) mod/quiz/locallib.php.
  19   *
  20   * @package    mod_quiz
  21   * @category   test
  22   * @copyright  2008 Tim Hunt
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  namespace mod_quiz;
  26  
  27  use quiz_attempt;
  28  use mod_quiz_display_options;
  29  
  30  defined('MOODLE_INTERNAL') || die();
  31  
  32  global $CFG;
  33  require_once($CFG->dirroot . '/mod/quiz/locallib.php');
  34  
  35  
  36  /**
  37   * Unit tests for (some of) mod/quiz/locallib.php.
  38   *
  39   * @copyright  2008 Tim Hunt
  40   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  41   */
  42  class locallib_test extends \advanced_testcase {
  43  
  44      public function test_quiz_rescale_grade() {
  45          $quiz = new \stdClass();
  46          $quiz->decimalpoints = 2;
  47          $quiz->questiondecimalpoints = 3;
  48          $quiz->grade = 10;
  49          $quiz->sumgrades = 10;
  50          $this->assertEquals(quiz_rescale_grade(0.12345678, $quiz, false), 0.12345678);
  51          $this->assertEquals(quiz_rescale_grade(0.12345678, $quiz, true), format_float(0.12, 2));
  52          $this->assertEquals(quiz_rescale_grade(0.12345678, $quiz, 'question'),
  53              format_float(0.123, 3));
  54          $quiz->sumgrades = 5;
  55          $this->assertEquals(quiz_rescale_grade(0.12345678, $quiz, false), 0.24691356);
  56          $this->assertEquals(quiz_rescale_grade(0.12345678, $quiz, true), format_float(0.25, 2));
  57          $this->assertEquals(quiz_rescale_grade(0.12345678, $quiz, 'question'),
  58              format_float(0.247, 3));
  59      }
  60  
  61      public function quiz_attempt_state_data_provider() {
  62          return [
  63              [quiz_attempt::IN_PROGRESS, null, null, mod_quiz_display_options::DURING],
  64              [quiz_attempt::FINISHED, -90, null, mod_quiz_display_options::IMMEDIATELY_AFTER],
  65              [quiz_attempt::FINISHED, -7200, null, mod_quiz_display_options::LATER_WHILE_OPEN],
  66              [quiz_attempt::FINISHED, -7200, 3600, mod_quiz_display_options::LATER_WHILE_OPEN],
  67              [quiz_attempt::FINISHED, -30, 30, mod_quiz_display_options::IMMEDIATELY_AFTER],
  68              [quiz_attempt::FINISHED, -90, -30, mod_quiz_display_options::AFTER_CLOSE],
  69              [quiz_attempt::FINISHED, -7200, -3600, mod_quiz_display_options::AFTER_CLOSE],
  70              [quiz_attempt::FINISHED, -90, -3600, mod_quiz_display_options::AFTER_CLOSE],
  71              [quiz_attempt::ABANDONED, -10000000, null, mod_quiz_display_options::LATER_WHILE_OPEN],
  72              [quiz_attempt::ABANDONED, -7200, 3600, mod_quiz_display_options::LATER_WHILE_OPEN],
  73              [quiz_attempt::ABANDONED, -7200, -3600, mod_quiz_display_options::AFTER_CLOSE],
  74          ];
  75      }
  76  
  77      /**
  78       * @dataProvider quiz_attempt_state_data_provider
  79       *
  80       * @param unknown $attemptstate as in the quiz_attempts.state DB column.
  81       * @param unknown $relativetimefinish time relative to now when the attempt finished, or null for 0.
  82       * @param unknown $relativetimeclose time relative to now when the quiz closes, or null for 0.
  83       * @param unknown $expectedstate expected result. One of the mod_quiz_display_options constants/
  84       */
  85      public function test_quiz_attempt_state($attemptstate,
  86              $relativetimefinish, $relativetimeclose, $expectedstate) {
  87  
  88          $attempt = new \stdClass();
  89          $attempt->state = $attemptstate;
  90          if ($relativetimefinish === null) {
  91              $attempt->timefinish = 0;
  92          } else {
  93              $attempt->timefinish = time() + $relativetimefinish;
  94          }
  95  
  96          $quiz = new \stdClass();
  97          if ($relativetimeclose === null) {
  98              $quiz->timeclose = 0;
  99          } else {
 100              $quiz->timeclose = time() + $relativetimeclose;
 101          }
 102  
 103          $this->assertEquals($expectedstate, quiz_attempt_state($quiz, $attempt));
 104      }
 105  
 106      /**
 107       * @covers ::quiz_question_tostring
 108       */
 109      public function test_quiz_question_tostring() {
 110          $question = new \stdClass();
 111          $question->qtype = 'multichoice';
 112          $question->name = 'The question name';
 113          $question->questiontext = '<p>What sort of <b>inequality</b> is x &lt; y<img alt="?" src="..."></p>';
 114          $question->questiontextformat = FORMAT_HTML;
 115  
 116          $summary = quiz_question_tostring($question);
 117          $this->assertEquals('<span class="questionname">The question name</span> ' .
 118                  '<span class="questiontext">What sort of INEQUALITY is x &lt; y[?]' . "\n" . '</span>', $summary);
 119      }
 120  
 121      /**
 122       * @covers ::quiz_question_tostring
 123       */
 124      public function test_quiz_question_tostring_does_not_filter() {
 125          $question = new \stdClass();
 126          $question->qtype = 'multichoice';
 127          $question->name = 'The question name';
 128          $question->questiontext = '<p>No emoticons here :-)</p>';
 129          $question->questiontextformat = FORMAT_HTML;
 130  
 131          $summary = quiz_question_tostring($question);
 132          $this->assertEquals('<span class="questionname">The question name</span> ' .
 133                  '<span class="questiontext">No emoticons here :-)' . "\n</span>", $summary);
 134      }
 135  
 136      /**
 137       * Test quiz_view
 138       * @return void
 139       */
 140      public function test_quiz_view() {
 141          global $CFG;
 142  
 143          $CFG->enablecompletion = 1;
 144          $this->resetAfterTest();
 145  
 146          $this->setAdminUser();
 147          // Setup test data.
 148          $course = $this->getDataGenerator()->create_course(array('enablecompletion' => 1));
 149          $quiz = $this->getDataGenerator()->create_module('quiz', array('course' => $course->id),
 150                                                              array('completion' => 2, 'completionview' => 1));
 151          $context = \context_module::instance($quiz->cmid);
 152          $cm = get_coursemodule_from_instance('quiz', $quiz->id);
 153  
 154          // Trigger and capture the event.
 155          $sink = $this->redirectEvents();
 156  
 157          quiz_view($quiz, $course, $cm, $context);
 158  
 159          $events = $sink->get_events();
 160          // 2 additional events thanks to completion.
 161          $this->assertCount(3, $events);
 162          $event = array_shift($events);
 163  
 164          // Checking that the event contains the expected values.
 165          $this->assertInstanceOf('\mod_quiz\event\course_module_viewed', $event);
 166          $this->assertEquals($context, $event->get_context());
 167          $moodleurl = new \moodle_url('/mod/quiz/view.php', array('id' => $cm->id));
 168          $this->assertEquals($moodleurl, $event->get_url());
 169          $this->assertEventContextNotUsed($event);
 170          $this->assertNotEmpty($event->get_name());
 171          // Check completion status.
 172          $completion = new \completion_info($course);
 173          $completiondata = $completion->get_data($cm);
 174          $this->assertEquals(1, $completiondata->completionstate);
 175      }
 176  
 177      /**
 178       * Return false when there are not overrides for this quiz instance.
 179       */
 180      public function test_quiz_is_overriden_calendar_event_no_override() {
 181          global $CFG, $DB;
 182  
 183          $this->resetAfterTest();
 184          $this->setAdminUser();
 185  
 186          $generator = $this->getDataGenerator();
 187          $user = $generator->create_user();
 188          $course = $generator->create_course();
 189          $quizgenerator = $generator->get_plugin_generator('mod_quiz');
 190          $quiz = $quizgenerator->create_instance(['course' => $course->id]);
 191  
 192          $event = new \calendar_event((object)[
 193              'modulename' => 'quiz',
 194              'instance' => $quiz->id,
 195              'userid' => $user->id
 196          ]);
 197  
 198          $this->assertFalse(quiz_is_overriden_calendar_event($event));
 199      }
 200  
 201      /**
 202       * Return false if the given event isn't an quiz module event.
 203       */
 204      public function test_quiz_is_overriden_calendar_event_no_module_event() {
 205          global $CFG, $DB;
 206  
 207          $this->resetAfterTest();
 208          $this->setAdminUser();
 209  
 210          $generator = $this->getDataGenerator();
 211          $user = $generator->create_user();
 212          $course = $generator->create_course();
 213          $quizgenerator = $generator->get_plugin_generator('mod_quiz');
 214          $quiz = $quizgenerator->create_instance(['course' => $course->id]);
 215  
 216          $event = new \calendar_event((object)[
 217              'userid' => $user->id
 218          ]);
 219  
 220          $this->assertFalse(quiz_is_overriden_calendar_event($event));
 221      }
 222  
 223      /**
 224       * Return false if there is overrides for this use but they belong to another quiz
 225       * instance.
 226       */
 227      public function test_quiz_is_overriden_calendar_event_different_quiz_instance() {
 228          global $CFG, $DB;
 229  
 230          $this->resetAfterTest();
 231          $this->setAdminUser();
 232  
 233          $generator = $this->getDataGenerator();
 234          $user = $generator->create_user();
 235          $course = $generator->create_course();
 236          $quizgenerator = $generator->get_plugin_generator('mod_quiz');
 237          $quiz = $quizgenerator->create_instance(['course' => $course->id]);
 238          $quiz2 = $quizgenerator->create_instance(['course' => $course->id]);
 239  
 240          $event = new \calendar_event((object) [
 241              'modulename' => 'quiz',
 242              'instance' => $quiz->id,
 243              'userid' => $user->id
 244          ]);
 245  
 246          $record = (object) [
 247              'quiz' => $quiz2->id,
 248              'userid' => $user->id
 249          ];
 250  
 251          $DB->insert_record('quiz_overrides', $record);
 252  
 253          $this->assertFalse(quiz_is_overriden_calendar_event($event));
 254      }
 255  
 256      /**
 257       * Return true if there is a user override for this event and quiz instance.
 258       */
 259      public function test_quiz_is_overriden_calendar_event_user_override() {
 260          global $CFG, $DB;
 261  
 262          $this->resetAfterTest();
 263          $this->setAdminUser();
 264  
 265          $generator = $this->getDataGenerator();
 266          $user = $generator->create_user();
 267          $course = $generator->create_course();
 268          $quizgenerator = $generator->get_plugin_generator('mod_quiz');
 269          $quiz = $quizgenerator->create_instance(['course' => $course->id]);
 270  
 271          $event = new \calendar_event((object) [
 272              'modulename' => 'quiz',
 273              'instance' => $quiz->id,
 274              'userid' => $user->id
 275          ]);
 276  
 277          $record = (object) [
 278              'quiz' => $quiz->id,
 279              'userid' => $user->id
 280          ];
 281  
 282          $DB->insert_record('quiz_overrides', $record);
 283  
 284          $this->assertTrue(quiz_is_overriden_calendar_event($event));
 285      }
 286  
 287      /**
 288       * Return true if there is a group override for the event and quiz instance.
 289       */
 290      public function test_quiz_is_overriden_calendar_event_group_override() {
 291          global $CFG, $DB;
 292  
 293          $this->resetAfterTest();
 294          $this->setAdminUser();
 295  
 296          $generator = $this->getDataGenerator();
 297          $user = $generator->create_user();
 298          $course = $generator->create_course();
 299          $quizgenerator = $generator->get_plugin_generator('mod_quiz');
 300          $quiz = $quizgenerator->create_instance(['course' => $course->id]);
 301          $group = $this->getDataGenerator()->create_group(array('courseid' => $quiz->course));
 302          $groupid = $group->id;
 303          $userid = $user->id;
 304  
 305          $event = new \calendar_event((object) [
 306              'modulename' => 'quiz',
 307              'instance' => $quiz->id,
 308              'groupid' => $groupid
 309          ]);
 310  
 311          $record = (object) [
 312              'quiz' => $quiz->id,
 313              'groupid' => $groupid
 314          ];
 315  
 316          $DB->insert_record('quiz_overrides', $record);
 317  
 318          $this->assertTrue(quiz_is_overriden_calendar_event($event));
 319      }
 320  
 321      /**
 322       * Test test_quiz_get_user_timeclose().
 323       */
 324      public function test_quiz_get_user_timeclose() {
 325          global $DB;
 326  
 327          $this->resetAfterTest();
 328          $this->setAdminUser();
 329  
 330          $basetimestamp = time(); // The timestamp we will base the enddates on.
 331  
 332          // Create generator, course and quizzes.
 333          $student1 = $this->getDataGenerator()->create_user();
 334          $student2 = $this->getDataGenerator()->create_user();
 335          $student3 = $this->getDataGenerator()->create_user();
 336          $teacher = $this->getDataGenerator()->create_user();
 337          $course = $this->getDataGenerator()->create_course();
 338          $quizgenerator = $this->getDataGenerator()->get_plugin_generator('mod_quiz');
 339  
 340          // Both quizzes close in two hours.
 341          $quiz1 = $quizgenerator->create_instance(array('course' => $course->id, 'timeclose' => $basetimestamp + 7200));
 342          $quiz2 = $quizgenerator->create_instance(array('course' => $course->id, 'timeclose' => $basetimestamp + 7200));
 343          $group1 = $this->getDataGenerator()->create_group(array('courseid' => $course->id));
 344          $group2 = $this->getDataGenerator()->create_group(array('courseid' => $course->id));
 345  
 346          $student1id = $student1->id;
 347          $student2id = $student2->id;
 348          $student3id = $student3->id;
 349          $teacherid = $teacher->id;
 350  
 351          // Users enrolments.
 352          $studentrole = $DB->get_record('role', array('shortname' => 'student'));
 353          $teacherrole = $DB->get_record('role', array('shortname' => 'editingteacher'));
 354          $this->getDataGenerator()->enrol_user($student1id, $course->id, $studentrole->id, 'manual');
 355          $this->getDataGenerator()->enrol_user($student2id, $course->id, $studentrole->id, 'manual');
 356          $this->getDataGenerator()->enrol_user($student3id, $course->id, $studentrole->id, 'manual');
 357          $this->getDataGenerator()->enrol_user($teacherid, $course->id, $teacherrole->id, 'manual');
 358  
 359          // Create groups.
 360          $group1 = $this->getDataGenerator()->create_group(array('courseid' => $course->id));
 361          $group2 = $this->getDataGenerator()->create_group(array('courseid' => $course->id));
 362          $group1id = $group1->id;
 363          $group2id = $group2->id;
 364          $this->getDataGenerator()->create_group_member(array('userid' => $student1id, 'groupid' => $group1id));
 365          $this->getDataGenerator()->create_group_member(array('userid' => $student2id, 'groupid' => $group2id));
 366  
 367          // Group 1 gets an group override for quiz 1 to close in three hours.
 368          $record1 = (object) [
 369              'quiz' => $quiz1->id,
 370              'groupid' => $group1id,
 371              'timeclose' => $basetimestamp + 10800 // In three hours.
 372          ];
 373          $DB->insert_record('quiz_overrides', $record1);
 374  
 375          // Let's test quiz 1 closes in three hours for user student 1 since member of group 1.
 376          // Quiz 2 closes in two hours.
 377          $this->setUser($student1id);
 378          $params = new \stdClass();
 379  
 380          $comparearray = array();
 381          $object = new \stdClass();
 382          $object->id = $quiz1->id;
 383          $object->usertimeclose = $basetimestamp + 10800; // The overriden timeclose for quiz 1.
 384  
 385          $comparearray[$quiz1->id] = $object;
 386  
 387          $object = new \stdClass();
 388          $object->id = $quiz2->id;
 389          $object->usertimeclose = $basetimestamp + 7200; // The unchanged timeclose for quiz 2.
 390  
 391          $comparearray[$quiz2->id] = $object;
 392  
 393          $this->assertEquals($comparearray, quiz_get_user_timeclose($course->id));
 394  
 395          // Let's test quiz 1 closes in two hours (the original value) for user student 3 since member of no group.
 396          $this->setUser($student3id);
 397          $params = new \stdClass();
 398  
 399          $comparearray = array();
 400          $object = new \stdClass();
 401          $object->id = $quiz1->id;
 402          $object->usertimeclose = $basetimestamp + 7200; // The original timeclose for quiz 1.
 403  
 404          $comparearray[$quiz1->id] = $object;
 405  
 406          $object = new \stdClass();
 407          $object->id = $quiz2->id;
 408          $object->usertimeclose = $basetimestamp + 7200; // The original timeclose for quiz 2.
 409  
 410          $comparearray[$quiz2->id] = $object;
 411  
 412          $this->assertEquals($comparearray, quiz_get_user_timeclose($course->id));
 413  
 414          // User 2 gets an user override for quiz 1 to close in four hours.
 415          $record2 = (object) [
 416              'quiz' => $quiz1->id,
 417              'userid' => $student2id,
 418              'timeclose' => $basetimestamp + 14400 // In four hours.
 419          ];
 420          $DB->insert_record('quiz_overrides', $record2);
 421  
 422          // Let's test quiz 1 closes in four hours for user student 2 since personally overriden.
 423          // Quiz 2 closes in two hours.
 424          $this->setUser($student2id);
 425  
 426          $comparearray = array();
 427          $object = new \stdClass();
 428          $object->id = $quiz1->id;
 429          $object->usertimeclose = $basetimestamp + 14400; // The overriden timeclose for quiz 1.
 430  
 431          $comparearray[$quiz1->id] = $object;
 432  
 433          $object = new \stdClass();
 434          $object->id = $quiz2->id;
 435          $object->usertimeclose = $basetimestamp + 7200; // The unchanged timeclose for quiz 2.
 436  
 437          $comparearray[$quiz2->id] = $object;
 438  
 439          $this->assertEquals($comparearray, quiz_get_user_timeclose($course->id));
 440  
 441          // Let's test a teacher sees the original times.
 442          // Quiz 1 and quiz 2 close in two hours.
 443          $this->setUser($teacherid);
 444  
 445          $comparearray = array();
 446          $object = new \stdClass();
 447          $object->id = $quiz1->id;
 448          $object->usertimeclose = $basetimestamp + 7200; // The unchanged timeclose for quiz 1.
 449  
 450          $comparearray[$quiz1->id] = $object;
 451  
 452          $object = new \stdClass();
 453          $object->id = $quiz2->id;
 454          $object->usertimeclose = $basetimestamp + 7200; // The unchanged timeclose for quiz 2.
 455  
 456          $comparearray[$quiz2->id] = $object;
 457  
 458          $this->assertEquals($comparearray, quiz_get_user_timeclose($course->id));
 459      }
 460  
 461      /**
 462       * This function creates a quiz with some standard (non-random) and some random questions.
 463       * The standard questions are created first and then random questions follow them.
 464       * So in a quiz with 3 standard question and 2 random question, the first random question is at slot 4.
 465       *
 466       * @param int $qnum Number of standard questions that should be created in the quiz.
 467       * @param int $randomqnum Number of random questions that should be created in the quiz.
 468       * @param array $questiontags Tags to be used for random questions.
 469       *      This is an array in the following format:
 470       *      [
 471       *          0 => ['foo', 'bar'],
 472       *          1 => ['baz', 'qux']
 473       *      ]
 474       * @param string[] $unusedtags Some additional tags to be created.
 475       * @return array An array of 2 elements: $quiz and $tagobjects.
 476       *      $tagobjects is an associative array of all created tag objects with its key being tag names.
 477       */
 478      private function setup_quiz_and_tags($qnum, $randomqnum, $questiontags = [], $unusedtags = []) {
 479          global $SITE;
 480  
 481          $tagobjects = [];
 482  
 483          // Get all the tags that need to be created.
 484          $alltags = [];
 485          foreach ($questiontags as $questiontag) {
 486              $alltags = array_merge($alltags, $questiontag);
 487          }
 488          $alltags = array_merge($alltags, $unusedtags);
 489          $alltags = array_unique($alltags);
 490  
 491          // Create tags.
 492          foreach ($alltags as $tagname) {
 493              $tagrecord = array(
 494                  'isstandard' => 1,
 495                  'flag' => 0,
 496                  'rawname' => $tagname,
 497                  'description' => $tagname . ' desc'
 498              );
 499              $tagobjects[$tagname] = $this->getDataGenerator()->create_tag($tagrecord);
 500          }
 501  
 502          // Create a quiz.
 503          $quizgenerator = $this->getDataGenerator()->get_plugin_generator('mod_quiz');
 504          $quiz = $quizgenerator->create_instance(array('course' => $SITE->id, 'questionsperpage' => 3, 'grade' => 100.0));
 505  
 506          // Create a question category in the system context.
 507          $questiongenerator = $this->getDataGenerator()->get_plugin_generator('core_question');
 508          $cat = $questiongenerator->create_question_category();
 509  
 510          // Setup standard questions.
 511          for ($i = 0; $i < $qnum; $i++) {
 512              $question = $questiongenerator->create_question('shortanswer', null, array('category' => $cat->id));
 513              quiz_add_quiz_question($question->id, $quiz);
 514          }
 515          // Setup random questions.
 516          for ($i = 0; $i < $randomqnum; $i++) {
 517              // Just create a standard question first, so there would be enough questions to pick a random question from.
 518              $question = $questiongenerator->create_question('shortanswer', null, array('category' => $cat->id));
 519              $tagids = [];
 520              if (!empty($questiontags[$i])) {
 521                  foreach ($questiontags[$i] as $tagname) {
 522                      $tagids[] = $tagobjects[$tagname]->id;
 523                  }
 524              }
 525              quiz_add_random_questions($quiz, 0, $cat->id, 1, false, $tagids);
 526          }
 527  
 528          return array($quiz, $tagobjects);
 529      }
 530  
 531      public function test_quiz_override_summary() {
 532          global $DB, $PAGE;
 533          $this->resetAfterTest();
 534          $generator = $this->getDataGenerator();
 535          /** @var mod_quiz_generator $quizgenerator */
 536          $quizgenerator = $generator->get_plugin_generator('mod_quiz');
 537          /** @var mod_quiz_renderer $renderer */
 538          $renderer = $PAGE->get_renderer('mod_quiz');
 539  
 540          // Course with quiz and a group - plus some others, to verify they don't get counted.
 541          $course = $generator->create_course();
 542          $quiz = $quizgenerator->create_instance(['course' => $course->id, 'groupmode' => SEPARATEGROUPS]);
 543          $cm = get_coursemodule_from_id('quiz', $quiz->cmid, $course->id);
 544          $group = $generator->create_group(['courseid' => $course->id]);
 545          $othergroup = $generator->create_group(['courseid' => $course->id]);
 546          $otherquiz = $quizgenerator->create_instance(['course' => $course->id]);
 547  
 548          // Initial test (as admin) with no data.
 549          $this->setAdminUser();
 550          $this->assertEquals(['group' => 0, 'user' => 0, 'mode' => 'allgroups'],
 551                  quiz_override_summary($quiz, $cm));
 552          $this->assertEquals(['group' => 0, 'user' => 0, 'mode' => 'onegroup'],
 553                  quiz_override_summary($quiz, $cm, $group->id));
 554  
 555          // Editing teacher.
 556          $teacher = $generator->create_user();
 557          $generator->enrol_user($teacher->id, $course->id, 'editingteacher');
 558  
 559          // Non-editing teacher.
 560          $tutor = $generator->create_user();
 561          $generator->enrol_user($tutor->id, $course->id, 'teacher');
 562          $generator->create_group_member(['userid' => $tutor->id, 'groupid' => $group->id]);
 563  
 564          // Three students.
 565          $student1 = $generator->create_user();
 566          $generator->enrol_user($student1->id, $course->id, 'student');
 567          $generator->create_group_member(['userid' => $student1->id, 'groupid' => $group->id]);
 568  
 569          $student2 = $generator->create_user();
 570          $generator->enrol_user($student2->id, $course->id, 'student');
 571          $generator->create_group_member(['userid' => $student2->id, 'groupid' => $othergroup->id]);
 572  
 573          $student3 = $generator->create_user();
 574          $generator->enrol_user($student3->id, $course->id, 'student');
 575  
 576          // Initial test now users exist, but before overrides.
 577          // Test as teacher.
 578          $this->setUser($teacher);
 579          $this->assertEquals(['group' => 0, 'user' => 0, 'mode' => 'allgroups'],
 580                  quiz_override_summary($quiz, $cm));
 581          $this->assertEquals(['group' => 0, 'user' => 0, 'mode' => 'onegroup'],
 582                  quiz_override_summary($quiz, $cm, $group->id));
 583  
 584          // Test as tutor.
 585          $this->setUser($tutor);
 586          $this->assertEquals(['group' => 0, 'user' => 0, 'mode' => 'somegroups'],
 587                  quiz_override_summary($quiz, $cm));
 588          $this->assertEquals(['group' => 0, 'user' => 0, 'mode' => 'onegroup'],
 589                  quiz_override_summary($quiz, $cm, $group->id));
 590          $this->assertEquals('', $renderer->quiz_override_summary_links($quiz, $cm));
 591  
 592          // Quiz setting overrides for students 1 and 3.
 593          $quizgenerator->create_override(['quiz' => $quiz->id, 'userid' => $student1->id, 'attempts' => 2]);
 594          $quizgenerator->create_override(['quiz' => $quiz->id, 'userid' => $student3->id, 'attempts' => 2]);
 595          $quizgenerator->create_override(['quiz' => $quiz->id, 'groupid' => $group->id, 'attempts' => 3]);
 596          $quizgenerator->create_override(['quiz' => $quiz->id, 'groupid' => $othergroup->id, 'attempts' => 3]);
 597          $quizgenerator->create_override(['quiz' => $otherquiz->id, 'userid' => $student2->id, 'attempts' => 2]);
 598  
 599          // Test as teacher.
 600          $this->setUser($teacher);
 601          $this->assertEquals(['group' => 2, 'user' => 2, 'mode' => 'allgroups'],
 602                  quiz_override_summary($quiz, $cm));
 603          $this->assertEquals('Settings overrides exist (Groups: 2, Users: 2)',
 604                  // Links checked by Behat, so strip them for these tests.
 605                  html_to_text($renderer->quiz_override_summary_links($quiz, $cm), 0, false));
 606          $this->assertEquals(['group' => 1, 'user' => 1, 'mode' => 'onegroup'],
 607                  quiz_override_summary($quiz, $cm, $group->id));
 608          $this->assertEquals('Settings overrides exist (Groups: 1, Users: 1) for this group',
 609                  html_to_text($renderer->quiz_override_summary_links($quiz, $cm, $group->id), 0, false));
 610  
 611          // Test as tutor.
 612          $this->setUser($tutor);
 613          $this->assertEquals(['group' => 1, 'user' => 1, 'mode' => 'somegroups'],
 614                  quiz_override_summary($quiz, $cm));
 615          $this->assertEquals('Settings overrides exist (Groups: 1, Users: 1) for your groups',
 616                  html_to_text($renderer->quiz_override_summary_links($quiz, $cm), 0, false));
 617          $this->assertEquals(['group' => 1, 'user' => 1, 'mode' => 'onegroup'],
 618                  quiz_override_summary($quiz, $cm, $group->id));
 619          $this->assertEquals('Settings overrides exist (Groups: 1, Users: 1) for this group',
 620                  html_to_text($renderer->quiz_override_summary_links($quiz, $cm, $group->id), 0, false));
 621  
 622          // Now set the quiz to be group mode: no groups, and re-test as tutor.
 623          // In this case, the tutor should see all groups.
 624          $DB->set_field('course_modules', 'groupmode', NOGROUPS, ['id' => $cm->id]);
 625          $cm = get_coursemodule_from_id('quiz', $quiz->cmid, $course->id);
 626  
 627          $this->assertEquals(['group' => 2, 'user' => 2, 'mode' => 'allgroups'],
 628                  quiz_override_summary($quiz, $cm));
 629          $this->assertEquals('Settings overrides exist (Groups: 2, Users: 2)',
 630                  html_to_text($renderer->quiz_override_summary_links($quiz, $cm), 0, false));
 631      }
 632  
 633      /**
 634       *  Test quiz_send_confirmation function.
 635       */
 636      public function test_quiz_send_confirmation() {
 637          global $CFG, $DB;
 638  
 639          $this->resetAfterTest();
 640          $this->setAdminUser();
 641          $this->preventResetByRollback();
 642  
 643          $course = $this->getDataGenerator()->create_course();
 644          $quizgenerator = $this->getDataGenerator()->get_plugin_generator('mod_quiz');
 645          $quiz = $quizgenerator->create_instance(['course' => $course->id]);
 646          $cm = get_coursemodule_from_instance('quiz', $quiz->id);
 647  
 648          $recipient = $this->getDataGenerator()->create_user(['email' => 'student@example.com']);
 649  
 650          // Allow recipent to receive email confirm submission.
 651          $studentrole = $DB->get_record('role', array('shortname' => 'student'));
 652          assign_capability('mod/quiz:emailconfirmsubmission', CAP_ALLOW, $studentrole->id,
 653              \context_course::instance($course->id), true);
 654          $this->getDataGenerator()->enrol_user($recipient->id, $course->id, $studentrole->id, 'manual');
 655  
 656          $timenow = time();
 657          $data = new \stdClass();
 658          // Course info.
 659          $data->courseid        = $course->id;
 660          $data->coursename      = $course->fullname;
 661          // Quiz info.
 662          $data->quizname        = $quiz->name;
 663          $data->quizurl         = $CFG->wwwroot . '/mod/quiz/view.php?id=' . $cm->id;
 664          $data->quizid          = $quiz->id;
 665          $data->quizcmid        = $quiz->cmid;
 666          $data->attemptid       = 1;
 667          $data->submissiontime = userdate($timenow);
 668  
 669          $sink = $this->redirectEmails();
 670          quiz_send_confirmation($recipient, $data, true);
 671          $messages = $sink->get_messages();
 672          $message = reset($messages);
 673          $this->assertStringContainsString("Thank you for submitting your answers" ,
 674              quoted_printable_decode($message->body));
 675          $sink->close();
 676  
 677          $sink = $this->redirectEmails();
 678          quiz_send_confirmation($recipient, $data, false);
 679          $messages = $sink->get_messages();
 680          $message = reset($messages);
 681          $this->assertStringContainsString("Your answers were submitted automatically" ,
 682              quoted_printable_decode($message->body));
 683          $sink->close();
 684      }
 685  }