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See Release Notes

  • Bug fixes for general core bugs in 3.10.x will end 8 November 2021 (12 months).
  • Bug fixes for security issues in 3.10.x will end 9 May 2022 (18 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.

Differences Between: [Versions 310 and 311] [Versions 310 and 400] [Versions 310 and 401] [Versions 310 and 402] [Versions 310 and 403] [Versions 39 and 310]

   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   * Tests groups subsystems.
  19   *
  20   * @package    core_group
  21   * @category   phpunit
  22   * @copyright  2007 onwards Martin Dougiamas (http://dougiamas.com)
  23   * @author     Andrew Nicols
  24   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25   */
  26  
  27  defined('MOODLE_INTERNAL') || die();
  28  
  29  /**
  30   * Unit tests for lib/grouplib.php
  31   * @group core_group
  32   */
  33  class core_grouplib_testcase extends advanced_testcase {
  34  
  35      public function test_groups_get_group_by_idnumber() {
  36          $this->resetAfterTest(true);
  37  
  38          $generator = $this->getDataGenerator();
  39  
  40          // Create a course category and course.
  41          $cat = $generator->create_category(array('parent' => 0));
  42          $course = $generator->create_course(array('category' => $cat->id));
  43  
  44          $idnumber1 = 'idnumber1';
  45          $idnumber2 = 'idnumber2';
  46  
  47          /*
  48           * Test with an empty and a null idnumber.
  49           */
  50          // An empty idnumber should always return a false value.
  51          $this->assertFalse(groups_get_group_by_idnumber($course->id, ''));
  52          $this->assertFalse(groups_get_group_by_idnumber($course->id, null));
  53  
  54          // Even when a group exists which also has an empty idnumber.
  55          $generator->create_group(array('courseid' => $course->id));
  56          $this->assertFalse(groups_get_group_by_idnumber($course->id, ''));
  57          $this->assertFalse(groups_get_group_by_idnumber($course->id, null));
  58  
  59          /*
  60           * Test with a valid idnumber.
  61           */
  62          // There is no matching idnumber at present.
  63          $this->assertFalse(groups_get_group_by_idnumber($course->id, $idnumber1));
  64  
  65          // We should now have a valid group returned by the idnumber search.
  66          $group = $generator->create_group(array('courseid' => $course->id, 'idnumber' => $idnumber1));
  67          $this->assertEquals($group, groups_get_group_by_idnumber($course->id, $idnumber1));
  68  
  69          // An empty idnumber should still return false.
  70          $this->assertFalse(groups_get_group_by_idnumber($course->id, ''));
  71          $this->assertFalse(groups_get_group_by_idnumber($course->id, null));
  72  
  73          /*
  74           * Test with another idnumber.
  75           */
  76          // There is no matching idnumber at present.
  77          $this->assertFalse(groups_get_group_by_idnumber($course->id, $idnumber2));
  78  
  79          // We should now have a valid group returned by the idnumber search.
  80          $group = $generator->create_group(array('courseid' => $course->id, 'idnumber' => $idnumber2));
  81          $this->assertEquals($group, groups_get_group_by_idnumber($course->id, $idnumber2));
  82  
  83          /*
  84           * Group idnumbers are unique within a course so test that we don't
  85           * retrieve groups for the first course.
  86           */
  87  
  88          // Create a second course.
  89          $course = $generator->create_course(array('category' => $cat->id));
  90  
  91          // An empty idnumber should always return a false value.
  92          $this->assertFalse(groups_get_group_by_idnumber($course->id, ''));
  93          $this->assertFalse(groups_get_group_by_idnumber($course->id, null));
  94  
  95          // Our existing idnumbers shouldn't be returned here as we're in a different course.
  96          $this->assertFalse(groups_get_group_by_idnumber($course->id, $idnumber1));
  97          $this->assertFalse(groups_get_group_by_idnumber($course->id, $idnumber2));
  98  
  99          // We should be able to reuse the idnumbers again since this is a different course.
 100          $group = $generator->create_group(array('courseid' => $course->id, 'idnumber' => $idnumber1));
 101          $this->assertEquals($group, groups_get_group_by_idnumber($course->id, $idnumber1));
 102  
 103          $group = $generator->create_group(array('courseid' => $course->id, 'idnumber' => $idnumber2));
 104          $this->assertEquals($group, groups_get_group_by_idnumber($course->id, $idnumber2));
 105      }
 106  
 107      public function test_groups_get_grouping_by_idnumber() {
 108          $this->resetAfterTest(true);
 109  
 110          $generator = $this->getDataGenerator();
 111  
 112          // Create a course category and course.
 113          $cat = $generator->create_category(array('parent' => 0));
 114          $course = $generator->create_course(array('category' => $cat->id));
 115  
 116          $idnumber1 = 'idnumber1';
 117          $idnumber2 = 'idnumber2';
 118  
 119          /*
 120           * Test with an empty and a null idnumber.
 121           */
 122          // An empty idnumber should always return a false value.
 123          $this->assertFalse(groups_get_grouping_by_idnumber($course->id, ''));
 124          $this->assertFalse(groups_get_grouping_by_idnumber($course->id, null));
 125  
 126          // Even when a grouping exists which also has an empty idnumber.
 127          $generator->create_grouping(array('courseid' => $course->id));
 128          $this->assertFalse(groups_get_grouping_by_idnumber($course->id, ''));
 129          $this->assertFalse(groups_get_grouping_by_idnumber($course->id, null));
 130  
 131          /*
 132           * Test with a valid idnumber
 133           */
 134          // There is no matching idnumber at present.
 135          $this->assertFalse(groups_get_grouping_by_idnumber($course->id, $idnumber1));
 136  
 137          // We should now have a valid group returned by the idnumber search.
 138          $grouping = $generator->create_grouping(array('courseid' => $course->id, 'idnumber' => $idnumber1));
 139          $this->assertEquals($grouping, groups_get_grouping_by_idnumber($course->id, $idnumber1));
 140  
 141          // An empty idnumber should still return false.
 142          $this->assertFalse(groups_get_grouping_by_idnumber($course->id, ''));
 143          $this->assertFalse(groups_get_grouping_by_idnumber($course->id, null));
 144  
 145          /*
 146           * Test with another idnumber.
 147           */
 148          // There is no matching idnumber at present.
 149          $this->assertFalse(groups_get_grouping_by_idnumber($course->id, $idnumber2));
 150  
 151          // We should now have a valid grouping returned by the idnumber search.
 152          $grouping = $generator->create_grouping(array('courseid' => $course->id, 'idnumber' => $idnumber2));
 153          $this->assertEquals($grouping, groups_get_grouping_by_idnumber($course->id, $idnumber2));
 154  
 155          /*
 156           * Grouping idnumbers are unique within a course so test that we don't
 157           * retrieve groupings for the first course.
 158           */
 159  
 160          // Create a second course.
 161          $course = $generator->create_course(array('category' => $cat->id));
 162  
 163          // An empty idnumber should always return a false value.
 164          $this->assertFalse(groups_get_grouping_by_idnumber($course->id, ''));
 165          $this->assertFalse(groups_get_grouping_by_idnumber($course->id, null));
 166  
 167          // Our existing idnumbers shouldn't be returned here as we're in a different course.
 168          $this->assertFalse(groups_get_grouping_by_idnumber($course->id, $idnumber1));
 169          $this->assertFalse(groups_get_grouping_by_idnumber($course->id, $idnumber2));
 170  
 171          // We should be able to reuse the idnumbers again since this is a different course.
 172          $grouping = $generator->create_grouping(array('courseid' => $course->id, 'idnumber' => $idnumber1));
 173          $this->assertEquals($grouping, groups_get_grouping_by_idnumber($course->id, $idnumber1));
 174  
 175          $grouping = $generator->create_grouping(array('courseid' => $course->id, 'idnumber' => $idnumber2));
 176          $this->assertEquals($grouping, groups_get_grouping_by_idnumber($course->id, $idnumber2));
 177      }
 178  
 179      public function test_groups_get_members_ids_sql() {
 180          global $DB;
 181  
 182          $this->resetAfterTest(true);
 183  
 184          $generator = $this->getDataGenerator();
 185  
 186          $course = $generator->create_course();
 187          $coursecontext = context_course::instance($course->id);
 188          $student1 = $generator->create_user();
 189          $student2 = $generator->create_user();
 190          $plugin = enrol_get_plugin('manual');
 191          $role = $DB->get_record('role', array('shortname' => 'student'));
 192          $group = $generator->create_group(array('courseid' => $course->id));
 193          $instance = $DB->get_record('enrol', array(
 194                  'courseid' => $course->id,
 195                  'enrol' => 'manual',
 196          ));
 197  
 198          $this->assertNotEquals($instance, false);
 199  
 200          // Enrol users in the course.
 201          $plugin->enrol_user($instance, $student1->id, $role->id);
 202          $plugin->enrol_user($instance, $student2->id, $role->id);
 203  
 204          list($sql, $params) = groups_get_members_ids_sql($group->id);
 205  
 206          // Test an empty group.
 207          $users = $DB->get_records_sql($sql, $params);
 208          $this->assertFalse(array_key_exists($student1->id, $users));
 209  
 210          // Test with a group member.
 211          groups_add_member($group->id, $student1->id);
 212          $users = $DB->get_records_sql($sql, $params);
 213          $this->assertTrue(array_key_exists($student1->id, $users));
 214      }
 215  
 216      public function test_groups_get_members_ids_sql_multiple_groups() {
 217          global $DB;
 218  
 219          $this->resetAfterTest(true);
 220  
 221          $generator = $this->getDataGenerator();
 222  
 223          $course = $generator->create_course();
 224          $student1 = $generator->create_user();
 225          $student2 = $generator->create_user();
 226          $plugin = enrol_get_plugin('manual');
 227          $role = $DB->get_record('role', array('shortname' => 'student'));
 228          $group1 = $generator->create_group(array('courseid' => $course->id));
 229          $group2 = $generator->create_group(array('courseid' => $course->id));
 230          $groupids = [
 231              $group1->id,
 232              $group2->id,
 233          ];
 234          $instance = $DB->get_record('enrol', array(
 235                  'courseid' => $course->id,
 236                  'enrol' => 'manual',
 237          ));
 238  
 239          $this->assertNotEquals($instance, false);
 240  
 241          // Enrol users in the course.
 242          $plugin->enrol_user($instance, $student1->id, $role->id);
 243          $plugin->enrol_user($instance, $student2->id, $role->id);
 244  
 245          list($sql, $params) = groups_get_members_ids_sql($groupids);
 246  
 247          // Test an empty group.
 248          $users = $DB->get_records_sql($sql, $params);
 249          $this->assertFalse(array_key_exists($student1->id, $users));
 250  
 251          // Test with a member of one of the two group.
 252          groups_add_member($group1->id, $student1->id);
 253          $users = $DB->get_records_sql($sql, $params);
 254          $this->assertTrue(array_key_exists($student1->id, $users));
 255  
 256          // Test with members of two groups.
 257          groups_add_member($group2->id, $student2->id);
 258          $users = $DB->get_records_sql($sql, $params);
 259          $this->assertTrue(array_key_exists($student1->id, $users));
 260          $this->assertTrue(array_key_exists($student2->id, $users));
 261      }
 262  
 263      public function test_groups_get_members_ids_sql_multiple_groups_join_types() {
 264          global $DB;
 265  
 266          $this->resetAfterTest(true);
 267  
 268          $generator = $this->getDataGenerator();
 269  
 270          $course = $generator->create_course();
 271          $student1 = $generator->create_user();
 272          $student2 = $generator->create_user();
 273          $student3 = $generator->create_user();
 274          $student4 = $generator->create_user();
 275          $student5 = $generator->create_user();
 276          $student6 = $generator->create_user();
 277          $plugin = enrol_get_plugin('manual');
 278          $role = $DB->get_record('role', array('shortname' => 'student'));
 279          $group1 = $generator->create_group(array('courseid' => $course->id));
 280          $group2 = $generator->create_group(array('courseid' => $course->id));
 281          $group3 = $generator->create_group(array('courseid' => $course->id));
 282          // Only groups 1 and 2 specified in SQL (group 3 helps cover the None case).
 283          $groupids = [
 284              $group1->id,
 285              $group2->id,
 286          ];
 287          $instance = $DB->get_record('enrol', array(
 288                  'courseid' => $course->id,
 289                  'enrol' => 'manual',
 290          ));
 291  
 292          $this->assertNotEquals($instance, false);
 293  
 294          // Enrol users in the course.
 295          $plugin->enrol_user($instance, $student1->id, $role->id);
 296          $plugin->enrol_user($instance, $student2->id, $role->id);
 297          $plugin->enrol_user($instance, $student3->id, $role->id);
 298          $plugin->enrol_user($instance, $student4->id, $role->id);
 299          $plugin->enrol_user($instance, $student5->id, $role->id);
 300          $plugin->enrol_user($instance, $student6->id, $role->id);
 301  
 302          // Generate SQL with the different groups join types for members of group1 and group2.
 303          list($sqlany, $paramsany) = groups_get_members_ids_sql($groupids, null, GROUPS_JOIN_ANY);
 304          list($sqlall, $paramsall) = groups_get_members_ids_sql($groupids, null, GROUPS_JOIN_ALL);
 305          list($sqlnone, $paramsnone) = groups_get_members_ids_sql($groupids, null, GROUPS_JOIN_NONE);
 306  
 307          // Any - Test empty groups, no matches.
 308          $users = $DB->get_records_sql($sqlany, $paramsany);
 309          $this->assertFalse(array_key_exists($student1->id, $users));
 310          $this->assertFalse(array_key_exists($student2->id, $users));
 311          $this->assertFalse(array_key_exists($student3->id, $users));
 312          $this->assertFalse(array_key_exists($student4->id, $users));
 313          $this->assertFalse(array_key_exists($student5->id, $users));
 314          $this->assertFalse(array_key_exists($student6->id, $users));
 315  
 316          // All - Test empty groups, no matches.
 317          $users = $DB->get_records_sql($sqlall, $paramsall);
 318          $this->assertFalse(array_key_exists($student1->id, $users));
 319          $this->assertFalse(array_key_exists($student2->id, $users));
 320          $this->assertFalse(array_key_exists($student3->id, $users));
 321          $this->assertFalse(array_key_exists($student4->id, $users));
 322          $this->assertFalse(array_key_exists($student5->id, $users));
 323          $this->assertFalse(array_key_exists($student6->id, $users));
 324  
 325          // None - Test empty groups, all match.
 326          $users = $DB->get_records_sql($sqlnone, $paramsnone);
 327          $this->assertTrue(array_key_exists($student1->id, $users));
 328          $this->assertTrue(array_key_exists($student2->id, $users));
 329          $this->assertTrue(array_key_exists($student3->id, $users));
 330          $this->assertTrue(array_key_exists($student4->id, $users));
 331          $this->assertTrue(array_key_exists($student5->id, $users));
 332          $this->assertTrue(array_key_exists($student6->id, $users));
 333  
 334          // Assign various group member combinations.
 335          groups_add_member($group1->id, $student1->id);
 336          groups_add_member($group1->id, $student2->id);
 337          groups_add_member($group1->id, $student3->id);
 338          groups_add_member($group2->id, $student2->id);
 339          groups_add_member($group2->id, $student3->id);
 340          groups_add_member($group2->id, $student4->id);
 341          groups_add_member($group3->id, $student5->id);
 342  
 343          // Any - Test students in one or both of groups 1 and 2 matched.
 344          $users = $DB->get_records_sql($sqlany, $paramsany);
 345          $this->assertTrue(array_key_exists($student1->id, $users));
 346          $this->assertTrue(array_key_exists($student2->id, $users));
 347          $this->assertTrue(array_key_exists($student3->id, $users));
 348          $this->assertTrue(array_key_exists($student4->id, $users));
 349          $this->assertFalse(array_key_exists($student5->id, $users));
 350          $this->assertFalse(array_key_exists($student6->id, $users));
 351  
 352          // All - Test only students in both groups 1 and 2 matched.
 353          $users = $DB->get_records_sql($sqlall, $paramsall);
 354          $this->assertTrue(array_key_exists($student2->id, $users));
 355          $this->assertTrue(array_key_exists($student3->id, $users));
 356          $this->assertFalse(array_key_exists($student1->id, $users));
 357          $this->assertFalse(array_key_exists($student4->id, $users));
 358          $this->assertFalse(array_key_exists($student5->id, $users));
 359          $this->assertFalse(array_key_exists($student6->id, $users));
 360  
 361          // None - Test only students not in group 1 or 2 matched.
 362          $users = $DB->get_records_sql($sqlnone, $paramsnone);
 363          $this->assertTrue(array_key_exists($student5->id, $users));
 364          $this->assertTrue(array_key_exists($student6->id, $users));
 365          $this->assertFalse(array_key_exists($student1->id, $users));
 366          $this->assertFalse(array_key_exists($student2->id, $users));
 367          $this->assertFalse(array_key_exists($student3->id, $users));
 368          $this->assertFalse(array_key_exists($student4->id, $users));
 369      }
 370  
 371      public function test_groups_get_members_ids_sql_valid_context() {
 372          global $DB;
 373  
 374          $this->resetAfterTest(true);
 375  
 376          $generator = $this->getDataGenerator();
 377  
 378          $course = $generator->create_course();
 379          $coursecontext = context_course::instance($course->id);
 380          $student1 = $generator->create_user();
 381          $student2 = $generator->create_user();
 382          $plugin = enrol_get_plugin('manual');
 383          $role = $DB->get_record('role', array('shortname' => 'student'));
 384          $group = $generator->create_group(array('courseid' => $course->id));
 385          $instance = $DB->get_record('enrol', array(
 386                  'courseid' => $course->id,
 387                  'enrol' => 'manual',
 388          ));
 389  
 390          $this->assertNotEquals($instance, false);
 391  
 392          // Enrol users in the course.
 393          $plugin->enrol_user($instance, $student1->id, $role->id);
 394          $plugin->enrol_user($instance, $student2->id, $role->id);
 395  
 396          // Add student1 to the group.
 397          groups_add_member($group->id, $student1->id);
 398  
 399          // Test with members at any group and with a valid $context.
 400          list($sql, $params) = groups_get_members_ids_sql(USERSWITHOUTGROUP, $coursecontext);
 401          $users = $DB->get_records_sql($sql, $params);
 402          $this->assertFalse(array_key_exists($student1->id, $users));
 403          $this->assertTrue(array_key_exists($student2->id, $users));
 404      }
 405  
 406      public function test_groups_get_members_ids_sql_empty_context() {
 407          global $DB;
 408  
 409          $this->resetAfterTest(true);
 410  
 411          $generator = $this->getDataGenerator();
 412  
 413          $course = $generator->create_course();
 414          $coursecontext = context_course::instance($course->id);
 415          $student1 = $generator->create_user();
 416          $student2 = $generator->create_user();
 417          $plugin = enrol_get_plugin('manual');
 418          $role = $DB->get_record('role', array('shortname' => 'student'));
 419          $group = $generator->create_group(array('courseid' => $course->id));
 420          $instance = $DB->get_record('enrol', array(
 421                  'courseid' => $course->id,
 422                  'enrol' => 'manual',
 423          ));
 424  
 425          $this->assertNotEquals($instance, false);
 426  
 427          // Enrol users in the course.
 428          $plugin->enrol_user($instance, $student1->id, $role->id);
 429          $plugin->enrol_user($instance, $student2->id, $role->id);
 430  
 431          // Add student1 to the group.
 432          groups_add_member($group->id, $student1->id);
 433  
 434          // Test with members at any group and without the $context.
 435          $this->expectException('coding_exception');
 436          list($sql, $params) = groups_get_members_ids_sql(USERSWITHOUTGROUP);
 437      }
 438  
 439      public function test_groups_get_members_ids_sql_invalid_context() {
 440          global $DB;
 441  
 442          $this->resetAfterTest(true);
 443  
 444          $generator = $this->getDataGenerator();
 445  
 446          $course = $generator->create_course();
 447          $coursecontext = context_course::instance($course->id);
 448          $student1 = $generator->create_user();
 449          $student2 = $generator->create_user();
 450          $plugin = enrol_get_plugin('manual');
 451          $role = $DB->get_record('role', array('shortname' => 'student'));
 452          $group = $generator->create_group(array('courseid' => $course->id));
 453          $instance = $DB->get_record('enrol', array(
 454                  'courseid' => $course->id,
 455                  'enrol' => 'manual',
 456          ));
 457  
 458          $this->assertNotEquals($instance, false);
 459  
 460          // Enrol users in the course.
 461          $plugin->enrol_user($instance, $student1->id, $role->id);
 462          $plugin->enrol_user($instance, $student2->id, $role->id);
 463  
 464          // Add student1 to the group.
 465          groups_add_member($group->id, $student1->id);
 466  
 467          // Test with members at any group and with an invalid $context.
 468          $syscontext = context_system::instance();
 469          $this->expectException('coding_exception');
 470          list($sql, $params) = groups_get_members_ids_sql(USERSWITHOUTGROUP, $syscontext);
 471      }
 472  
 473      public function test_groups_get_group_by_name() {
 474          $this->resetAfterTest(true);
 475  
 476          $generator = $this->getDataGenerator();
 477  
 478          // Create a course category and course.
 479          $cat = $generator->create_category(array('parent' => 0));
 480          $course = $generator->create_course(array('category' => $cat->id));
 481  
 482          $name1 = 'Name 1';
 483          $name2 = 'Name 2';
 484  
 485          // Test with an empty and a null idnumber.
 486          $this->assertFalse(groups_get_group_by_name($course->id, ''));
 487          $this->assertFalse(groups_get_group_by_name($course->id, null));
 488  
 489          // Even when a group exists.
 490          $generator->create_group(array('courseid' => $course->id));
 491          $this->assertFalse(groups_get_group_by_name($course->id, ''));
 492          $this->assertFalse(groups_get_group_by_name($course->id, null));
 493  
 494          // Test with a valid name, but one that doesn't exist yet.
 495          $this->assertFalse(groups_get_group_by_name($course->id, $name1));
 496          $this->assertFalse(groups_get_group_by_name($course->id, $name2));
 497  
 498          // We should now have a valid group returned by the name search.
 499          $group1 = $generator->create_group(array('courseid' => $course->id, 'name' => $name1));
 500          $this->assertEquals($group1->id, groups_get_group_by_name($course->id, $name1));
 501          $this->assertFalse(groups_get_group_by_name($course->id, $name2));
 502  
 503          // We should now have a two valid groups returned by the name search.
 504          $group2 = $generator->create_group(array('courseid' => $course->id, 'name' => $name2));
 505          $this->assertEquals($group1->id, groups_get_group_by_name($course->id, $name1));
 506          $this->assertEquals($group2->id, groups_get_group_by_name($course->id, $name2));
 507  
 508          // Delete a group.
 509          $this->assertTrue(groups_delete_group($group1));
 510          $this->assertFalse(groups_get_group_by_name($course->id, $name1));
 511          $this->assertEquals($group2->id, groups_get_group_by_name($course->id, $name2));
 512  
 513          /*
 514           * Group idnumbers are unique within a course so test that we don't
 515           * retrieve groups for the first course.
 516           */
 517  
 518          // Create a second course.
 519          $course = $generator->create_course(array('category' => $cat->id));
 520  
 521          // An empty name should always return a false value.
 522          $this->assertFalse(groups_get_group_by_name($course->id, ''));
 523          $this->assertFalse(groups_get_group_by_name($course->id, null));
 524  
 525          // Our existing names shouldn't be returned here as we're in a different course.
 526          $this->assertFalse(groups_get_group_by_name($course->id, $name1));
 527          $this->assertFalse(groups_get_group_by_name($course->id, $name2));
 528  
 529          // We should be able to reuse the idnumbers again since this is a different course.
 530          $group1 = $generator->create_group(array('courseid' => $course->id, 'name' => $name1));
 531          $this->assertEquals($group1->id, groups_get_group_by_name($course->id, $name1));
 532  
 533          $group2 = $generator->create_group(array('courseid' => $course->id, 'name' => $name2));
 534          $this->assertEquals($group2->id, groups_get_group_by_name($course->id, $name2));
 535      }
 536  
 537      public function test_groups_get_grouping() {
 538          $this->resetAfterTest(true);
 539  
 540          $generator = $this->getDataGenerator();
 541  
 542          // Create a course category and course.
 543          $cat = $generator->create_category(array('parent' => 0));
 544          $course = $generator->create_course(array('category' => $cat->id));
 545  
 546          $name1 = 'Grouping 1';
 547          $name2 = 'Grouping 2';
 548  
 549          // Test with an empty and a null idnumber.
 550          $this->assertFalse(groups_get_grouping_by_name($course->id, ''));
 551          $this->assertFalse(groups_get_grouping_by_name($course->id, null));
 552  
 553          // Even when a group exists.
 554          $generator->create_group(array('courseid' => $course->id));
 555          $this->assertFalse(groups_get_grouping_by_name($course->id, ''));
 556          $this->assertFalse(groups_get_grouping_by_name($course->id, null));
 557  
 558          // Test with a valid name, but one that doesn't exist yet.
 559          $this->assertFalse(groups_get_grouping_by_name($course->id, $name1));
 560          $this->assertFalse(groups_get_grouping_by_name($course->id, $name2));
 561  
 562          // We should now have a valid group returned by the name search.
 563          $group1 = $generator->create_grouping(array('courseid' => $course->id, 'name' => $name1));
 564          $this->assertEquals($group1->id, groups_get_grouping_by_name($course->id, $name1));
 565          $this->assertFalse(groups_get_grouping_by_name($course->id, $name2));
 566  
 567          // We should now have a two valid groups returned by the name search.
 568          $group2 = $generator->create_grouping(array('courseid' => $course->id, 'name' => $name2));
 569          $this->assertEquals($group1->id, groups_get_grouping_by_name($course->id, $name1));
 570          $this->assertEquals($group2->id, groups_get_grouping_by_name($course->id, $name2));
 571  
 572          // Delete a group.
 573          $this->assertTrue(groups_delete_grouping($group1));
 574          $this->assertFalse(groups_get_grouping_by_name($course->id, $name1));
 575          $this->assertEquals($group2->id, groups_get_grouping_by_name($course->id, $name2));
 576  
 577          /*
 578           * Group idnumbers are unique within a course so test that we don't
 579           * retrieve groups for the first course.
 580           */
 581  
 582          // Create a second course.
 583          $course = $generator->create_course(array('category' => $cat->id));
 584  
 585          // An empty name should always return a false value.
 586          $this->assertFalse(groups_get_grouping_by_name($course->id, ''));
 587          $this->assertFalse(groups_get_grouping_by_name($course->id, null));
 588  
 589          // Our existing names shouldn't be returned here as we're in a different course.
 590          $this->assertFalse(groups_get_grouping_by_name($course->id, $name1));
 591          $this->assertFalse(groups_get_grouping_by_name($course->id, $name2));
 592  
 593          // We should be able to reuse the idnumbers again since this is a different course.
 594          $group1 = $generator->create_grouping(array('courseid' => $course->id, 'name' => $name1));
 595          $this->assertEquals($group1->id, groups_get_grouping_by_name($course->id, $name1));
 596  
 597          $group2 = $generator->create_grouping(array('courseid' => $course->id, 'name' => $name2));
 598          $this->assertEquals($group2->id, groups_get_grouping_by_name($course->id, $name2));
 599      }
 600  
 601      public function test_groups_get_course_data() {
 602          $this->resetAfterTest(true);
 603  
 604          $generator = $this->getDataGenerator();
 605  
 606          // Create a course category and course.
 607          $cat = $generator->create_category(array('parent' => 0));
 608          $course = $generator->create_course(array('category' => $cat->id));
 609          $grouping1 = $generator->create_grouping(array('courseid' => $course->id, 'name' => 'Grouping 1'));
 610          $grouping2 = $generator->create_grouping(array('courseid' => $course->id, 'name' => 'Grouping 2'));
 611          $group1 = $generator->create_group(array('courseid' => $course->id, 'name' => 'Group 1'));
 612          $group2 = $generator->create_group(array('courseid' => $course->id, 'name' => 'Group 2'));
 613          $group3 = $generator->create_group(array('courseid' => $course->id, 'name' => 'Group 3'));
 614          $group4 = $generator->create_group(array('courseid' => $course->id, 'name' => 'Group 4'));
 615  
 616          // Assign the groups to groupings.
 617          $this->assertTrue(groups_assign_grouping($grouping1->id, $group1->id));
 618          $this->assertTrue(groups_assign_grouping($grouping1->id, $group2->id));
 619          $this->assertTrue(groups_assign_grouping($grouping2->id, $group3->id));
 620          $this->assertTrue(groups_assign_grouping($grouping2->id, $group4->id));
 621  
 622          // Get the data.
 623          $data = groups_get_course_data($course->id);
 624          $this->assertInstanceOf('stdClass', $data);
 625          $this->assertObjectHasAttribute('groups', $data);
 626          $this->assertObjectHasAttribute('groupings', $data);
 627          $this->assertObjectHasAttribute('mappings', $data);
 628  
 629          // Test we have the expected items returns.
 630          $this->assertCount(4, $data->groups);
 631          $this->assertCount(2, $data->groupings);
 632          $this->assertCount(4, $data->mappings);
 633  
 634          // Check we have the expected groups.
 635          $this->assertArrayHasKey($group1->id, $data->groups);
 636          $this->assertArrayHasKey($group2->id, $data->groups);
 637          $this->assertArrayHasKey($group3->id, $data->groups);
 638          $this->assertArrayHasKey($group4->id, $data->groups);
 639  
 640          // Test a group-id is mapped correctly.
 641          $this->assertSame($group3->name, $data->groups[$group3->id]->name);
 642  
 643          // Check we have the expected number of groupings.
 644          $this->assertContains($grouping1->id, array_keys($data->groupings));
 645          $this->assertContains($grouping2->id, array_keys($data->groupings));
 646  
 647          // Test a grouping-id is mapped correctly.
 648          $this->assertEquals($grouping2->name, $data->groupings[$grouping2->id]->name);
 649  
 650          // Test that all of the mappings are correct.
 651          $grouping1maps = 0;
 652          $grouping2maps = 0;
 653          $group1maps = 0;
 654          $group2maps = 0;
 655          $group3maps = 0;
 656          $group4maps = 0;
 657          foreach ($data->mappings as $mapping) {
 658              if ($mapping->groupingid === $grouping1->id) {
 659                  $grouping1maps++;
 660                  $this->assertContains($mapping->groupid, array($group1->id, $group2->id));
 661              } else if ($mapping->groupingid === $grouping2->id) {
 662                  $grouping2maps++;
 663                  $this->assertContains($mapping->groupid, array($group3->id, $group4->id));
 664              } else {
 665                  $this->fail('Unexpected groupingid');
 666              }
 667              switch ($mapping->groupid) {
 668                  case $group1->id : $group1maps++; break;
 669                  case $group2->id : $group2maps++; break;
 670                  case $group3->id : $group3maps++; break;
 671                  case $group4->id : $group4maps++; break;
 672              }
 673          }
 674          $this->assertEquals(2, $grouping1maps);
 675          $this->assertEquals(2, $grouping2maps);
 676          $this->assertEquals(1, $group1maps);
 677          $this->assertEquals(1, $group2maps);
 678          $this->assertEquals(1, $group3maps);
 679          $this->assertEquals(1, $group4maps);
 680  
 681          // Test the groups_get_all_groups which uses this functionality.
 682          $groups  = groups_get_all_groups($course->id);
 683          $groupkeys = array_keys($groups);
 684          $this->assertCount(4, $groups);
 685          $this->assertContains($group1->id, $groupkeys);
 686          $this->assertContains($group2->id, $groupkeys);
 687          $this->assertContains($group3->id, $groupkeys);
 688          $this->assertContains($group4->id, $groupkeys);
 689  
 690          $groups  = groups_get_all_groups($course->id, null, $grouping1->id);
 691          $groupkeys = array_keys($groups);
 692          $this->assertCount(2, $groups);
 693          $this->assertContains($group1->id, $groupkeys);
 694          $this->assertContains($group2->id, $groupkeys);
 695          $this->assertNotContains($group3->id, $groupkeys);
 696          $this->assertNotContains($group4->id, $groupkeys);
 697  
 698          $groups  = groups_get_all_groups($course->id, null, $grouping2->id);
 699          $groupkeys = array_keys($groups);
 700          $this->assertCount(2, $groups);
 701          $this->assertNotContains($group1->id, $groupkeys);
 702          $this->assertNotContains($group2->id, $groupkeys);
 703          $this->assertContains($group3->id, $groupkeys);
 704          $this->assertContains($group4->id, $groupkeys);
 705  
 706          // Test this function using an alternate column for the result index
 707          $groups  = groups_get_all_groups($course->id, null, $grouping2->id, 'g.name, g.id');
 708          $groupkeys = array_keys($groups);
 709          $this->assertCount(2, $groups);
 710          $this->assertNotContains($group3->id, $groupkeys);
 711          $this->assertContains($group3->name, $groupkeys);
 712          $this->assertEquals($group3->id, $groups[$group3->name]->id);
 713      }
 714  
 715      /**
 716       * Tests for groups_group_visible.
 717       */
 718      public function test_groups_group_visible() {
 719          global $CFG, $DB;
 720  
 721          $generator = $this->getDataGenerator();
 722          $this->resetAfterTest();
 723          $this->setAdminUser();
 724  
 725          // Create a course category, course and groups.
 726          $cat = $generator->create_category(array('parent' => 0));
 727          $course = $generator->create_course(array('category' => $cat->id));
 728          $coursecontext = context_course::instance($course->id);
 729          $group1 = $generator->create_group(array('courseid' => $course->id, 'name' => 'Group 1'));
 730          $group2 = $generator->create_group(array('courseid' => $course->id, 'name' => 'Group 2'));
 731          $group3 = $generator->create_group(array('courseid' => $course->id, 'name' => 'Group 3'));
 732          $group4 = $generator->create_group(array('courseid' => $course->id, 'name' => 'Group 4'));
 733  
 734          // Create cm.
 735          $assign = $generator->create_module("assign", array('course' => $course->id));
 736          $cm = get_coursemodule_from_instance("assign", $assign->id);
 737  
 738          // Create users.
 739          $user1 = $generator->create_user();
 740          $user2 = $generator->create_user();
 741          $user3 = $generator->create_user();
 742  
 743          // Enrol users into the course.
 744          $generator->enrol_user($user1->id, $course->id);
 745          $generator->enrol_user($user2->id, $course->id);
 746  
 747          // Assign groups.
 748          groups_add_member($group1, $user2);
 749  
 750          // Give capability at course level to the user to access all groups.
 751          $role = $DB->get_field("role", "id", array("shortname" => "manager"));
 752          $generator->enrol_user($user3->id, $course->id, $role);
 753          // Make sure the user has the capability.
 754          assign_capability('moodle/site:accessallgroups', CAP_ALLOW, $role, $coursecontext->id);
 755  
 756          // No groups , not forced.
 757          $result = groups_group_visible($group1->id, $course, null, $user1->id);
 758          $this->assertTrue($result);
 759          $result = groups_group_visible(0, $course, null, $user1->id);
 760          $this->assertTrue($result); // Requesting all groups.
 761  
 762          $result = groups_group_visible($group1->id, $course, $cm, $user1->id);
 763          $this->assertTrue($result); // Cm with no groups.
 764  
 765          $cm->groupmode = SEPARATEGROUPS;
 766          $result = groups_group_visible($group1->id, $course, $cm, $user1->id);
 767          $this->assertFalse($result); // Cm with separate groups.
 768          $result = groups_group_visible($group1->id, $course, $cm, $user2->id);
 769          $this->assertTrue($result); // Cm with separate groups.
 770  
 771          $cm->groupmode = VISIBLEGROUPS;
 772          $result = groups_group_visible($group1->id, $course, $cm, $user1->id);
 773          $this->assertTrue($result); // Cm with visible groups.
 774  
 775          // No groups, forced.
 776          $course->groupmode = NOGROUPS;
 777          $course->groupmodeforce = true;
 778          update_course($course);
 779          $result = groups_group_visible($group1->id, $course, null, $user1->id);
 780          $this->assertTrue($result);
 781          $result = groups_group_visible(0, $course, null, $user1->id);
 782          $this->assertTrue($result); // Requesting all groups.
 783  
 784          $result = groups_group_visible($group1->id, $course, $cm, $user1->id);
 785          $this->assertTrue($result); // Cm with no groups.
 786  
 787          $cm->groupmode = SEPARATEGROUPS;
 788          $result = groups_group_visible($group1->id, $course, $cm, $user1->id);
 789          $this->assertTrue($result); // Cm with separate groups.
 790          $result = groups_group_visible($group1->id, $course, $cm, $user2->id);
 791          $this->assertTrue($result); // Cm with separate groups.
 792  
 793          $cm->groupmode = SEPARATEGROUPS;
 794          $result = groups_group_visible($group1->id, $course, $cm, $user1->id);
 795          $this->assertTrue($result); // Cm with visible groups.
 796  
 797          // Visible groups, forced.
 798          $course->groupmode = VISIBLEGROUPS;
 799          $course->groupmodeforce = true;
 800          update_course($course);
 801          $result = groups_group_visible($group1->id, $course, null, $user1->id);
 802          $this->assertTrue($result);
 803          $result = groups_group_visible(0, $course, null, $user1->id);
 804          $this->assertTrue($result); // Requesting all groups.
 805  
 806          $cm->groupmode = NOGROUPS;
 807          $result = groups_group_visible($group1->id, $course, $cm, $user1->id);
 808          $this->assertTrue($result); // Cm with no groups.
 809  
 810          $cm->groupmode = SEPARATEGROUPS;
 811          $result = groups_group_visible($group1->id, $course, $cm, $user1->id);
 812          $this->assertTrue($result); // Cm with separate groups.
 813          $result = groups_group_visible($group1->id, $course, $cm, $user2->id);
 814          $this->assertTrue($result); // Cm with separate groups.
 815  
 816          $cm->groupmode = VISIBLEGROUPS;
 817          $result = groups_group_visible($group1->id, $course, $cm, $user1->id);
 818          $this->assertTrue($result); // Cm with visible groups.
 819  
 820          // Visible groups, not forced.
 821          $course->groupmode = VISIBLEGROUPS;
 822          $course->groupmodeforce = false;
 823          update_course($course);
 824          $result = groups_group_visible($group1->id, $course, null, $user1->id);
 825          $this->assertTrue($result);
 826          $result = groups_group_visible(0, $course, null, $user1->id);
 827          $this->assertTrue($result); // Requesting all groups.
 828  
 829          $cm->groupmode = NOGROUPS;
 830          $result = groups_group_visible($group1->id, $course, $cm, $user1->id);
 831          $this->assertTrue($result); // Cm with no groups.
 832  
 833          $cm->groupmode = SEPARATEGROUPS;
 834          $result = groups_group_visible($group1->id, $course, $cm, $user1->id);
 835          $this->assertFalse($result); // Cm with separate groups.
 836          $result = groups_group_visible($group1->id, $course, $cm, $user2->id);
 837          $this->assertTrue($result); // Cm with separate groups.
 838  
 839          $cm->groupmode = VISIBLEGROUPS;
 840          $result = groups_group_visible($group1->id, $course, $cm, $user1->id);
 841          $this->assertTrue($result); // Cm with visible groups.
 842  
 843          // Separate groups, forced.
 844          $course->groupmode = SEPARATEGROUPS;
 845          $course->groupmodeforce = true;
 846          update_course($course);
 847          $result = groups_group_visible($group1->id, $course, null, $user1->id);
 848          $this->assertFalse($result);
 849          $result = groups_group_visible($group1->id, $course, null, $user2->id);
 850          $this->assertTrue($result);
 851          $result = groups_group_visible(0, $course, null, $user2->id);
 852          $this->assertFalse($result); // Requesting all groups.
 853          $result = groups_group_visible(0, $course, null, $user3->id);
 854          $this->assertTrue($result); // Requesting all groups.
 855          $result = groups_group_visible($group1->id, $course, null, $user3->id);
 856          $this->assertTrue($result); // Make sure user with access to all groups can see any group.
 857  
 858          $cm->groupmode = NOGROUPS;
 859          $result = groups_group_visible($group1->id, $course, $cm, $user1->id);
 860          $this->assertFalse($result); // Cm with no groups.
 861  
 862          $cm->groupmode = SEPARATEGROUPS;
 863          $result = groups_group_visible($group1->id, $course, $cm, $user1->id);
 864          $this->assertFalse($result); // Cm with separate groups.
 865          $result = groups_group_visible($group1->id, $course, $cm, $user2->id);
 866          $this->assertTrue($result); // Cm with separate groups.
 867          $result = groups_group_visible($group1->id, $course, $cm, $user3->id);
 868          $this->assertTrue($result); // Make sure user with access to all groups can see any group.
 869  
 870          $cm->groupmode = VISIBLEGROUPS;
 871          $result = groups_group_visible($group1->id, $course, $cm, $user1->id);
 872          $this->assertFalse($result); // Cm with visible groups.
 873  
 874          // Separate groups, not forced.
 875          $course->groupmode = SEPARATEGROUPS;
 876          $course->groupmodeforce = false;
 877          update_course($course);
 878          $result = groups_group_visible($group1->id, $course, null, $user1->id);
 879          $this->assertFalse($result);
 880          $result = groups_group_visible($group1->id, $course, null, $user2->id);
 881          $this->assertTrue($result);
 882          $result = groups_group_visible(0, $course, null, $user2->id);
 883          $this->assertFalse($result); // Requesting all groups.
 884          $result = groups_group_visible(0, $course, null, $user3->id);
 885          $this->assertTrue($result); // Requesting all groups.
 886  
 887          $cm->groupmode = NOGROUPS;
 888          $result = groups_group_visible($group1->id, $course, $cm, $user1->id);
 889          $this->assertTrue($result); // Cm with no groups.
 890  
 891          $cm->groupmode = SEPARATEGROUPS;
 892          $result = groups_group_visible($group1->id, $course, $cm, $user1->id);
 893          $this->assertFalse($result); // Cm with separate groups.
 894          $result = groups_group_visible($group1->id, $course, $cm, $user2->id);
 895          $this->assertTrue($result); // Cm with separate groups.
 896  
 897          $cm->groupmode = VISIBLEGROUPS;
 898          $result = groups_group_visible($group1->id, $course, $cm, $user1->id);
 899          $this->assertTrue($result); // Cm with visible groups.
 900      }
 901  
 902      function test_groups_get_groupmode() {
 903          global $DB;
 904          $generator = $this->getDataGenerator();
 905          $this->resetAfterTest();
 906          $this->setAdminUser();
 907  
 908          // Create a course with no groups forcing.
 909          $course1 = $generator->create_course();
 910  
 911          // Create cm1 with no groups, cm1 with visible groups, cm2 with separate groups and cm3 with visible groups.
 912          $assign1 = $generator->create_module("assign", array('course' => $course1->id));
 913          $assign2 = $generator->create_module("assign", array('course' => $course1->id),
 914                  array('groupmode' => SEPARATEGROUPS));
 915          $assign3 = $generator->create_module("assign", array('course' => $course1->id),
 916                  array('groupmode' => VISIBLEGROUPS));
 917  
 918          // Request data for tests.
 919          $cm1 = get_coursemodule_from_instance("assign", $assign1->id);
 920          $cm2 = get_coursemodule_from_instance("assign", $assign2->id);
 921          $cm3 = get_coursemodule_from_instance("assign", $assign3->id);
 922          $modinfo = get_fast_modinfo($course1->id);
 923  
 924          // Assert that any method of getting activity groupmode returns the correct result.
 925          $this->assertEquals(NOGROUPS, groups_get_activity_groupmode($cm1));
 926          $this->assertEquals(NOGROUPS, groups_get_activity_groupmode($cm1, $course1));
 927          $this->assertEquals(NOGROUPS, groups_get_activity_groupmode($modinfo->cms[$cm1->id]));
 928          $this->assertEquals(SEPARATEGROUPS, groups_get_activity_groupmode($cm2));
 929          $this->assertEquals(SEPARATEGROUPS, groups_get_activity_groupmode($cm2, $course1));
 930          $this->assertEquals(SEPARATEGROUPS, groups_get_activity_groupmode($modinfo->cms[$cm2->id]));
 931          $this->assertEquals(VISIBLEGROUPS, groups_get_activity_groupmode($cm3));
 932          $this->assertEquals(VISIBLEGROUPS, groups_get_activity_groupmode($cm3, $course1));
 933          $this->assertEquals(VISIBLEGROUPS, groups_get_activity_groupmode($modinfo->cms[$cm3->id]));
 934  
 935          // Update the course set the groupmode SEPARATEGROUPS but not forced.
 936          update_course((object)array('id' => $course1->id, 'groupmode' => SEPARATEGROUPS));
 937          // Re-request the data from DB.
 938          $course1 = $DB->get_record('course', array('id' => $course1->id));
 939          $modinfo = get_fast_modinfo($course1->id);
 940  
 941          // Existing activities are not changed.
 942          $this->assertEquals(NOGROUPS, groups_get_activity_groupmode($cm1));
 943          $this->assertEquals(NOGROUPS, groups_get_activity_groupmode($cm1, $course1));
 944          $this->assertEquals(NOGROUPS, groups_get_activity_groupmode($modinfo->cms[$cm1->id]));
 945          $this->assertEquals(SEPARATEGROUPS, groups_get_activity_groupmode($cm2));
 946          $this->assertEquals(SEPARATEGROUPS, groups_get_activity_groupmode($cm2, $course1));
 947          $this->assertEquals(SEPARATEGROUPS, groups_get_activity_groupmode($modinfo->cms[$cm2->id]));
 948          $this->assertEquals(VISIBLEGROUPS, groups_get_activity_groupmode($cm3));
 949          $this->assertEquals(VISIBLEGROUPS, groups_get_activity_groupmode($cm3, $course1));
 950          $this->assertEquals(VISIBLEGROUPS, groups_get_activity_groupmode($modinfo->cms[$cm3->id]));
 951  
 952          // Update the course set the groupmode SEPARATEGROUPS and forced.
 953          update_course((object)array('id' => $course1->id, 'groupmode' => SEPARATEGROUPS, 'groupmodeforce' => true));
 954          // Re-request the data from DB.
 955          $course1 = $DB->get_record('course', array('id' => $course1->id));
 956          $modinfo = get_fast_modinfo($course1->id);
 957  
 958          // Make sure all activities have separate groups mode now.
 959          $this->assertEquals(SEPARATEGROUPS, groups_get_activity_groupmode($cm1));
 960          $this->assertEquals(SEPARATEGROUPS, groups_get_activity_groupmode($cm1, $course1));
 961          $this->assertEquals(SEPARATEGROUPS, groups_get_activity_groupmode($modinfo->cms[$cm1->id]));
 962          $this->assertEquals(SEPARATEGROUPS, groups_get_activity_groupmode($cm2));
 963          $this->assertEquals(SEPARATEGROUPS, groups_get_activity_groupmode($cm2, $course1));
 964          $this->assertEquals(SEPARATEGROUPS, groups_get_activity_groupmode($modinfo->cms[$cm2->id]));
 965          $this->assertEquals(SEPARATEGROUPS, groups_get_activity_groupmode($cm3));
 966          $this->assertEquals(SEPARATEGROUPS, groups_get_activity_groupmode($cm3, $course1));
 967          $this->assertEquals(SEPARATEGROUPS, groups_get_activity_groupmode($modinfo->cms[$cm3->id]));
 968      }
 969  
 970      /**
 971       * Tests for groups_allgroups_course_menu() .
 972       */
 973      public function test_groups_allgroups_course_menu() {
 974          global $SESSION;
 975  
 976          $this->resetAfterTest();
 977  
 978          // Generate data.
 979          $course = $this->getDataGenerator()->create_course();
 980          $record = new stdClass();
 981          $record->courseid = $course->id;
 982          $group1 = $this->getDataGenerator()->create_group($record);
 983          $group2 = $this->getDataGenerator()->create_group($record);
 984          $user = $this->getDataGenerator()->create_user();
 985          $this->getDataGenerator()->enrol_user($user->id, $course->id);
 986          $this->setUser($user);
 987  
 988          $html = groups_allgroups_course_menu($course, 'someurl.php');
 989          // Since user is not a part of this group and doesn't have accessallgroups permission,
 990          // the html should be empty.
 991          $this->assertEmpty($html);
 992  
 993          groups_add_member($group1->id, $user);
 994          // Now user can access one of the group. We can't assert an exact match here because of random ids generated by yui. So do
 995          // partial match to see if all groups are listed or not.
 996          $html = groups_allgroups_course_menu($course, 'someurl.php');
 997          $this->assertStringContainsString(format_string($group1->name), $html);
 998          $this->assertStringNotContainsString(format_string($group2->name), $html);
 999  
1000          $this->setAdminUser();
1001  
1002          // Now user can access everything.
1003          $html = groups_allgroups_course_menu($course, 'someurl.php');
1004          $this->assertStringContainsString(format_string($group1->name), $html);
1005          $this->assertStringContainsString(format_string($group2->name), $html);
1006  
1007          // Make sure separate groups mode, doesn't change anything.
1008          $course->groupmode = SEPARATEGROUPS;
1009          update_course($course);
1010          $html = groups_allgroups_course_menu($course, 'someurl.php');
1011          $this->assertStringContainsString(format_string($group1->name), $html);
1012          $this->assertStringContainsString(format_string($group2->name), $html);
1013  
1014          // Make sure Visible groups mode, doesn't change anything.
1015          $course->groupmode = VISIBLEGROUPS;
1016          update_course($course);
1017          $html = groups_allgroups_course_menu($course, 'someurl.php');
1018          $this->assertStringContainsString(format_string($group1->name), $html);
1019          $this->assertStringContainsString(format_string($group2->name), $html);
1020  
1021          // Let us test activegroup changes now.
1022          $this->setUser($user);
1023          $SESSION->activegroup[$course->id][VISIBLEGROUPS][$course->defaultgroupingid] = 5;
1024          groups_allgroups_course_menu($course, 'someurl.php', false); // Do not update session.
1025          $this->assertSame(5, $SESSION->activegroup[$course->id][VISIBLEGROUPS][$course->defaultgroupingid]);
1026          groups_allgroups_course_menu($course, 'someurl.php', true, $group1->id); // Update session.
1027          $this->assertSame($group1->id, $SESSION->activegroup[$course->id][VISIBLEGROUPS][$course->defaultgroupingid]);
1028          // Try to update session with an invalid groupid. It should not accept the invalid id.
1029          groups_allgroups_course_menu($course, 'someurl.php', true, 256);
1030          $this->assertEquals($group1->id, $SESSION->activegroup[$course->id][VISIBLEGROUPS][$course->defaultgroupingid]);
1031      }
1032  
1033      /**
1034       * This unit test checks that groups_get_all_groups returns groups in
1035       * alphabetical order even if they are in a grouping.
1036       */
1037      public function test_groups_ordering() {
1038          $generator = $this->getDataGenerator();
1039          $this->resetAfterTest();
1040  
1041          // Create a course category and course.
1042          $cat = $generator->create_category(array('parent' => 0));
1043          $course = $generator->create_course(array('category' => $cat->id));
1044          $grouping = $generator->create_grouping(array('courseid' => $course->id, 'name' => 'Grouping'));
1045  
1046          // Create groups in reverse order.
1047          $group2 = $generator->create_group(array('courseid' => $course->id, 'name' => 'Group 2'));
1048          $group1 = $generator->create_group(array('courseid' => $course->id, 'name' => 'Group 1'));
1049  
1050          // Assign the groups to the grouping in reverse order.
1051          $this->assertTrue(groups_assign_grouping($grouping->id, $group2->id));
1052          $this->assertTrue(groups_assign_grouping($grouping->id, $group1->id));
1053  
1054          // Get all groups and check they are alphabetical.
1055          $groups = array_values(groups_get_all_groups($course->id, 0));
1056          $this->assertEquals('Group 1', $groups[0]->name);
1057          $this->assertEquals('Group 2', $groups[1]->name);
1058  
1059          // Now check the same is true when accessed by grouping.
1060          $groups = array_values(groups_get_all_groups($course->id, 0, $grouping->id));
1061          $this->assertEquals('Group 1', $groups[0]->name);
1062          $this->assertEquals('Group 2', $groups[1]->name);
1063      }
1064  
1065      /**
1066       * Tests for groups_get_all_groups when grouping is set and we want members as well.
1067       */
1068      public function test_groups_get_all_groups_in_grouping_with_members() {
1069          $generator = $this->getDataGenerator();
1070          $this->resetAfterTest();
1071  
1072          // Create courses.
1073          $course1 = $generator->create_course();
1074          $course2 = $generator->create_course();
1075  
1076          // Create users.
1077          $c1user1 = $generator->create_user();
1078          $c12user1 = $generator->create_user();
1079          $c12user2 = $generator->create_user();
1080  
1081          // Enrol users.
1082          $generator->enrol_user($c1user1->id, $course1->id);
1083          $generator->enrol_user($c12user1->id, $course1->id);
1084          $generator->enrol_user($c12user1->id, $course2->id);
1085          $generator->enrol_user($c12user2->id, $course1->id);
1086          $generator->enrol_user($c12user2->id, $course2->id);
1087  
1088          // Create groupings and groups for course1.
1089          $c1grouping1 = $generator->create_grouping(array('courseid' => $course1->id));
1090          $c1grouping2 = $generator->create_grouping(array('courseid' => $course1->id));
1091          $c1group1 = $generator->create_group(array('courseid' => $course1->id));
1092          $c1group2 = $generator->create_group(array('courseid' => $course1->id));
1093          $c1group3 = $generator->create_group(array('courseid' => $course1->id));
1094          groups_assign_grouping($c1grouping1->id, $c1group1->id);
1095          groups_assign_grouping($c1grouping1->id, $c1group2->id);
1096          groups_assign_grouping($c1grouping2->id, $c1group3->id);
1097  
1098          // Create groupings and groups for course2.
1099          $c2grouping1 = $generator->create_grouping(array('courseid' => $course2->id));
1100          $c2group1 = $generator->create_group(array('courseid' => $course1->id));
1101          groups_assign_grouping($c2grouping1->id, $c2group1->id);
1102  
1103          // Assign users to groups.
1104          $generator->create_group_member(array('groupid' => $c1group1->id, 'userid' => $c1user1->id));
1105          $generator->create_group_member(array('groupid' => $c1group1->id, 'userid' => $c12user1->id));
1106          $generator->create_group_member(array('groupid' => $c1group2->id, 'userid' => $c12user2->id));
1107          $generator->create_group_member(array('groupid' => $c2group1->id, 'userid' => $c12user2->id));
1108  
1109          // Test without userid.
1110          $groups = groups_get_all_groups($course1->id, null, $c1grouping1->id, 'g.*', true);
1111  
1112          $this->assertEqualsCanonicalizing(
1113                  [$c1group1->id, $c1group2->id],
1114                  array_keys($groups)
1115          );
1116          $this->assertEquals(
1117                  [$c1user1->id => $c1user1->id, $c12user1->id => $c12user1->id],
1118                  $groups[$c1group1->id]->members
1119          );
1120          $this->assertEquals(
1121                  [$c12user2->id => $c12user2->id],
1122                  $groups[$c1group2->id]->members
1123          );
1124  
1125          // Test with userid.
1126          $groups = groups_get_all_groups($course1->id, $c1user1->id, $c1grouping1->id, 'g.*', true);
1127  
1128          $this->assertEquals([$c1group1->id], array_keys($groups));
1129          $this->assertEqualsCanonicalizing(
1130                  [$c1user1->id, $c12user1->id],
1131                  $groups[$c1group1->id]->members
1132          );
1133      }
1134  
1135      /**
1136       * Tests for groups_get_user_groups() method.
1137       */
1138      public function test_groups_get_user_groups() {
1139          $this->resetAfterTest(true);
1140          $generator = $this->getDataGenerator();
1141  
1142          // Create courses.
1143          $course1 = $generator->create_course();
1144          $course2 = $generator->create_course();
1145  
1146          // Create users.
1147          $user1 = $generator->create_user();
1148          $user2 = $generator->create_user();
1149          $user3 = $generator->create_user();
1150  
1151          // Enrol users.
1152          $generator->enrol_user($user1->id, $course1->id);
1153          $generator->enrol_user($user1->id, $course2->id);
1154          $generator->enrol_user($user2->id, $course2->id);
1155          $generator->enrol_user($user3->id, $course2->id);
1156  
1157          // Create groups.
1158          $group1 = $generator->create_group(array('courseid' => $course1->id));
1159          $group2 = $generator->create_group(array('courseid' => $course2->id));
1160          $group3 = $generator->create_group(array('courseid' => $course2->id));
1161  
1162          // Assign users to groups.
1163          $this->assertTrue($generator->create_group_member(array('groupid' => $group1->id, 'userid' => $user1->id)));
1164          $this->assertTrue($generator->create_group_member(array('groupid' => $group2->id, 'userid' => $user2->id)));
1165  
1166          // Get user groups.
1167          $usergroups1 = groups_get_user_groups($course1->id, $user1->id);
1168          $usergroups2 = groups_get_user_groups($course2->id, $user2->id);;
1169  
1170          // Assert return data.
1171          $this->assertEquals($group1->id, $usergroups1[0][0]);
1172          $this->assertEquals($group2->id, $usergroups2[0][0]);
1173  
1174          // Now, test with groupings.
1175          $grouping1 = $generator->create_grouping(array('courseid' => $course1->id));
1176          $grouping2 = $generator->create_grouping(array('courseid' => $course2->id));
1177  
1178          // Assign the groups to grouping.
1179          groups_assign_grouping($grouping1->id, $group1->id);
1180          groups_assign_grouping($grouping2->id, $group2->id);
1181          groups_assign_grouping($grouping2->id, $group3->id);
1182  
1183          // Test with grouping.
1184          $usergroups1 = groups_get_user_groups($course1->id, $user1->id);
1185          $usergroups2 = groups_get_user_groups($course2->id, $user2->id);
1186          $this->assertArrayHasKey($grouping1->id, $usergroups1);
1187          $this->assertArrayHasKey($grouping2->id, $usergroups2);
1188  
1189          // Test user without a group.
1190          $usergroups1 = groups_get_user_groups($course2->id, $user3->id);
1191          $this->assertCount(0, $usergroups1[0]);
1192  
1193          // Test with userid = 0.
1194          $usergroups1 = groups_get_user_groups($course1->id, 0);
1195          $usergroups2 = groups_get_user_groups($course2->id, 0);
1196          $this->assertCount(0, $usergroups1[0]);
1197          $this->assertCount(0, $usergroups2[0]);
1198  
1199          // Test with courseid = 0.
1200          $usergroups1 = groups_get_user_groups(0, $user1->id);
1201          $usergroups2 = groups_get_user_groups(0, $user2->id);
1202          $this->assertCount(0, $usergroups1[0]);
1203          $this->assertCount(0, $usergroups2[0]);
1204      }
1205  
1206      /**
1207       * Create dummy groups array for use in menu tests
1208       * @param int $number
1209       * @return array
1210       */
1211      protected function make_group_list($number) {
1212          $testgroups = array();
1213          for ($a = 0; $a < $number; $a++) {
1214              $grp = new stdClass();
1215              $grp->id = 100 + $a;
1216              $grp->name = 'test group ' . $grp->id;
1217              $testgroups[$grp->id] = $grp;
1218          }
1219          return $testgroups;
1220      }
1221  
1222      public function test_groups_sort_menu_options_empty() {
1223          $this->assertEquals(array(), groups_sort_menu_options(array(), array()));
1224      }
1225  
1226      public function test_groups_sort_menu_options_allowed_goups_only() {
1227          $this->assertEquals(array(
1228              100 => 'test group 100',
1229              101 => 'test group 101',
1230          ), groups_sort_menu_options($this->make_group_list(2), array()));
1231      }
1232  
1233      public function test_groups_sort_menu_options_user_goups_only() {
1234          $this->assertEquals(array(
1235              100 => 'test group 100',
1236              101 => 'test group 101',
1237          ), groups_sort_menu_options(array(), $this->make_group_list(2)));
1238      }
1239  
1240      public function test_groups_sort_menu_options_user_both() {
1241          $this->assertEquals(array(
1242              1 => array(get_string('mygroups', 'group') => array(
1243                  100 => 'test group 100',
1244                  101 => 'test group 101',
1245              )),
1246              2 => array(get_string('othergroups', 'group') => array(
1247                  102 => 'test group 102',
1248                  103 => 'test group 103',
1249              )),
1250          ), groups_sort_menu_options($this->make_group_list(4), $this->make_group_list(2)));
1251      }
1252  
1253      public function test_groups_sort_menu_options_user_both_many_groups() {
1254          $this->assertEquals(array(
1255              1 => array(get_string('mygroups', 'group') => array(
1256                  100 => 'test group 100',
1257                  101 => 'test group 101',
1258              )),
1259              2 => array (get_string('othergroups', 'group') => array(
1260                  102 => 'test group 102',
1261                  103 => 'test group 103',
1262                  104 => 'test group 104',
1263                  105 => 'test group 105',
1264                  106 => 'test group 106',
1265                  107 => 'test group 107',
1266                  108 => 'test group 108',
1267                  109 => 'test group 109',
1268                  110 => 'test group 110',
1269                  111 => 'test group 111',
1270                  112 => 'test group 112',
1271              )),
1272          ), groups_sort_menu_options($this->make_group_list(13), $this->make_group_list(2)));
1273      }
1274  
1275      /**
1276       * Tests for groups_user_groups_visible.
1277       */
1278      public function test_groups_user_groups_visible() {
1279          global $DB;
1280  
1281          $generator = $this->getDataGenerator();
1282          $this->resetAfterTest();
1283          $this->setAdminUser();
1284  
1285          // Create a course category, course and groups.
1286          $cat = $generator->create_category(array('parent' => 0));
1287          $course = $generator->create_course(array('category' => $cat->id));
1288          $coursecontext = context_course::instance($course->id);
1289          $group1 = $generator->create_group(array('courseid' => $course->id, 'name' => 'Group 1'));
1290          $group2 = $generator->create_group(array('courseid' => $course->id, 'name' => 'Group 2'));
1291          $group3 = $generator->create_group(array('courseid' => $course->id, 'name' => 'Group 3'));
1292          $group4 = $generator->create_group(array('courseid' => $course->id, 'name' => 'Group 4'));
1293  
1294          // Create cm.
1295          $assign = $generator->create_module("assign", array('course' => $course->id));
1296          $cm = get_coursemodule_from_instance("assign", $assign->id);
1297  
1298          // Create users.
1299          $user1 = $generator->create_user(); // Normal user.
1300          $user2 = $generator->create_user(); // Normal user.
1301          $user3 = $generator->create_user(); // Teacher, access all groups.
1302          $user4 = $generator->create_user(); // Normal user.
1303  
1304          // Enrol users into the course.
1305          $generator->enrol_user($user1->id, $course->id);
1306          $generator->enrol_user($user2->id, $course->id);
1307          $generator->enrol_user($user4->id, $course->id);
1308  
1309          // Assign groups.
1310          // User1 and User4 share groups.
1311          groups_add_member($group1, $user1);
1312          groups_add_member($group2, $user2);
1313          groups_add_member($group1, $user4);
1314  
1315          // Give capability at course level to the user to access all groups.
1316          $role = $DB->get_field("role", "id", array("shortname" => "manager"));
1317          $generator->enrol_user($user3->id, $course->id, $role);
1318          // Make sure the user has the capability.
1319          assign_capability('moodle/site:accessallgroups', CAP_ALLOW, $role, $coursecontext->id);
1320  
1321          // Normal users in different groups.
1322          $this->setUser($user1);
1323  
1324          // No groups , not forced.
1325          $result = groups_user_groups_visible($course, $user2->id);
1326          $this->assertTrue($result);
1327  
1328          $cm->groupmode = NOGROUPS;
1329          $result = groups_user_groups_visible($course, $user2->id, $cm);
1330          $this->assertTrue($result); // Cm with no groups.
1331  
1332          $cm->groupmode = SEPARATEGROUPS;
1333          $result = groups_user_groups_visible($course, $user2->id, $cm);
1334          $this->assertFalse($result); // Cm with separate groups.
1335  
1336          $cm->groupmode = VISIBLEGROUPS;
1337          $result = groups_user_groups_visible($course, $user2->id, $cm);
1338          $this->assertTrue($result); // Cm with visible groups.
1339  
1340          // No groups, forced.
1341          $course->groupmode = NOGROUPS;
1342          $course->groupmodeforce = true;
1343          update_course($course);
1344          $result = groups_user_groups_visible($course, $user2->id);
1345          $this->assertTrue($result);
1346  
1347          $cm->groupmode = NOGROUPS;
1348          $result = groups_user_groups_visible($course, $user2->id, $cm);
1349          $this->assertTrue($result); // Cm with no groups.
1350  
1351          $cm->groupmode = SEPARATEGROUPS;
1352          $result = groups_user_groups_visible($course, $user2->id, $cm);
1353          $this->assertTrue($result); // Cm with separate groups.
1354  
1355          $cm->groupmode = SEPARATEGROUPS;
1356          $result = groups_user_groups_visible($course, $user2->id);
1357          $this->assertTrue($result); // Cm with visible groups.
1358  
1359          // Visible groups, forced.
1360          $course->groupmode = VISIBLEGROUPS;
1361          $course->groupmodeforce = true;
1362          update_course($course);
1363          $result = groups_user_groups_visible($course, $user2->id);
1364          $this->assertTrue($result);
1365  
1366          $cm->groupmode = NOGROUPS;
1367          $result = groups_user_groups_visible($course, $user2->id, $cm);
1368          $this->assertTrue($result); // Cm with no groups.
1369  
1370          $cm->groupmode = SEPARATEGROUPS;
1371          $result = groups_user_groups_visible($course, $user2->id, $cm);
1372          $this->assertTrue($result); // Cm with separate groups.
1373  
1374          $cm->groupmode = VISIBLEGROUPS;
1375          $result = groups_user_groups_visible($course, $user2->id, $cm);
1376          $this->assertTrue($result); // Cm with visible groups.
1377  
1378          // Visible groups, not forced.
1379          $course->groupmode = VISIBLEGROUPS;
1380          $course->groupmodeforce = false;
1381          update_course($course);
1382          $result = groups_user_groups_visible($course, $user2->id);
1383          $this->assertTrue($result);
1384  
1385          $cm->groupmode = NOGROUPS;
1386          $result = groups_user_groups_visible($course, $user2->id, $cm);
1387          $this->assertTrue($result); // Cm with no groups.
1388  
1389          $cm->groupmode = SEPARATEGROUPS;
1390          $result = groups_user_groups_visible($course, $user2->id, $cm);
1391          $this->assertFalse($result); // Cm with separate groups.
1392  
1393          $cm->groupmode = VISIBLEGROUPS;
1394          $result = groups_user_groups_visible($course, $user2->id, $cm);
1395          $this->assertTrue($result); // Cm with visible groups.
1396  
1397          // Separate groups, forced.
1398          $course->groupmode = SEPARATEGROUPS;
1399          $course->groupmodeforce = true;
1400          update_course($course);
1401          $result = groups_user_groups_visible($course, $user2->id);
1402          $this->assertFalse($result);
1403  
1404          $result = groups_user_groups_visible($course, $user3->id);
1405          $this->assertFalse($result); // Requesting all groups.
1406  
1407          $cm->groupmode = NOGROUPS;
1408          $result = groups_user_groups_visible($course, $user2->id, $cm);
1409          $this->assertFalse($result); // Cm with no groups.
1410  
1411          $cm->groupmode = SEPARATEGROUPS;
1412          $result = groups_user_groups_visible($course, $user2->id, $cm);
1413          $this->assertFalse($result); // Cm with separate groups.
1414  
1415          $result = groups_user_groups_visible($course, $user3->id, $cm);
1416          $this->assertTrue($result);
1417  
1418          $cm->groupmode = VISIBLEGROUPS;
1419          $result = groups_user_groups_visible($course, $user2->id, $cm);
1420          $this->assertFalse($result); // Cm with visible groups.
1421  
1422          // Separate groups, not forced.
1423          $course->groupmode = SEPARATEGROUPS;
1424          $course->groupmodeforce = false;
1425          update_course($course);
1426          $result = groups_user_groups_visible($course, $user2->id);
1427          $this->assertFalse($result);
1428  
1429          $result = groups_user_groups_visible($course, $user3->id);
1430          $this->assertFalse($result); // Requesting all groups.
1431  
1432          $cm->groupmode = NOGROUPS;
1433          $result = groups_user_groups_visible($course, $user2->id, $cm);
1434          $this->assertTrue($result); // Cm with no groups.
1435  
1436          $cm->groupmode = SEPARATEGROUPS;
1437          $result = groups_user_groups_visible($course, $user2->id, $cm);
1438          $this->assertFalse($result); // Cm with separate groups.
1439  
1440          $cm->groupmode = VISIBLEGROUPS;
1441          $result = groups_user_groups_visible($course, $user2->id, $cm);
1442          $this->assertTrue($result); // Cm with visible groups.
1443  
1444          // Users sharing groups.
1445  
1446          // No groups , not forced.
1447          $course->groupmode = NOGROUPS;
1448          $course->groupmodeforce = false;
1449          update_course($course);
1450  
1451          $result = groups_user_groups_visible($course, $user4->id);
1452          $this->assertTrue($result);
1453  
1454          $cm->groupmode = NOGROUPS;
1455          $result = groups_user_groups_visible($course, $user4->id, $cm);
1456          $this->assertTrue($result); // Cm with no groups.
1457  
1458          $cm->groupmode = SEPARATEGROUPS;
1459          $result = groups_user_groups_visible($course, $user4->id, $cm);
1460          $this->assertTrue($result); // Cm with separate groups.
1461  
1462          $cm->groupmode = VISIBLEGROUPS;
1463          $result = groups_user_groups_visible($course, $user4->id, $cm);
1464          $this->assertTrue($result); // Cm with visible groups.
1465  
1466          // No groups, forced.
1467          $course->groupmode = NOGROUPS;
1468          $course->groupmodeforce = true;
1469          update_course($course);
1470          $result = groups_user_groups_visible($course, $user4->id);
1471          $this->assertTrue($result);
1472  
1473          $cm->groupmode = NOGROUPS;
1474          $result = groups_user_groups_visible($course, $user4->id, $cm);
1475          $this->assertTrue($result); // Cm with no groups.
1476  
1477          $cm->groupmode = SEPARATEGROUPS;
1478          $result = groups_user_groups_visible($course, $user4->id, $cm);
1479          $this->assertTrue($result); // Cm with separate groups.
1480  
1481          $cm->groupmode = SEPARATEGROUPS;
1482          $result = groups_user_groups_visible($course, $user4->id, $cm);
1483          $this->assertTrue($result); // Cm with visible groups.
1484  
1485          // Visible groups, forced.
1486          $course->groupmode = VISIBLEGROUPS;
1487          $course->groupmodeforce = true;
1488          update_course($course);
1489          $result = groups_user_groups_visible($course, $user4->id);
1490          $this->assertTrue($result);
1491  
1492          $cm->groupmode = NOGROUPS;
1493          $result = groups_user_groups_visible($course, $user4->id, $cm);
1494          $this->assertTrue($result); // Cm with no groups.
1495  
1496          $cm->groupmode = SEPARATEGROUPS;
1497          $result = groups_user_groups_visible($course, $user4->id, $cm);
1498          $this->assertTrue($result); // Cm with separate groups.
1499  
1500          $cm->groupmode = VISIBLEGROUPS;
1501          $result = groups_user_groups_visible($course, $user4->id, $cm);
1502          $this->assertTrue($result); // Cm with visible groups.
1503  
1504          // Visible groups, not forced.
1505          $course->groupmode = VISIBLEGROUPS;
1506          $course->groupmodeforce = false;
1507          update_course($course);
1508          $result = groups_user_groups_visible($course, $user4->id);
1509          $this->assertTrue($result);
1510  
1511          $cm->groupmode = NOGROUPS;
1512          $result = groups_user_groups_visible($course, $user4->id, $cm);
1513          $this->assertTrue($result); // Cm with no groups.
1514  
1515          $cm->groupmode = SEPARATEGROUPS;
1516          $result = groups_user_groups_visible($course, $user4->id, $cm);
1517          $this->assertTrue($result); // Cm with separate groups.
1518  
1519          $cm->groupmode = VISIBLEGROUPS;
1520          $result = groups_user_groups_visible($course, $user4->id, $cm);
1521          $this->assertTrue($result); // Cm with visible groups.
1522  
1523          // Separate groups, forced.
1524          $course->groupmode = SEPARATEGROUPS;
1525          $course->groupmodeforce = true;
1526          update_course($course);
1527          $result = groups_user_groups_visible($course, $user4->id);
1528          $this->assertTrue($result);
1529  
1530          $result = groups_user_groups_visible($course, $user3->id);
1531          $this->assertFalse($result); // Requesting all groups.
1532  
1533          $cm->groupmode = NOGROUPS;
1534          $result = groups_user_groups_visible($course, $user4->id, $cm);
1535          $this->assertTrue($result); // Cm with no groups.
1536  
1537          $cm->groupmode = SEPARATEGROUPS;
1538          $result = groups_user_groups_visible($course, $user4->id, $cm);
1539          $this->assertTrue($result); // Cm with separate groups.
1540  
1541          $result = groups_user_groups_visible($course, $user3->id, $cm);
1542          $this->assertTrue($result);
1543  
1544          $cm->groupmode = VISIBLEGROUPS;
1545          $result = groups_user_groups_visible($course, $user4->id, $cm);
1546          $this->assertTrue($result); // Cm with visible groups.
1547  
1548          // Separate groups, not forced.
1549          $course->groupmode = SEPARATEGROUPS;
1550          $course->groupmodeforce = false;
1551          update_course($course);
1552          $result = groups_user_groups_visible($course, $user4->id);
1553          $this->assertTrue($result);
1554  
1555          $result = groups_user_groups_visible($course, $user3->id);
1556          $this->assertFalse($result); // Requesting all groups.
1557  
1558          $cm->groupmode = NOGROUPS;
1559          $result = groups_user_groups_visible($course, $user4->id, $cm);
1560          $this->assertTrue($result); // Cm with no groups.
1561  
1562          $cm->groupmode = SEPARATEGROUPS;
1563          $result = groups_user_groups_visible($course, $user4->id, $cm);
1564          $this->assertTrue($result); // Cm with separate groups.
1565  
1566          $cm->groupmode = VISIBLEGROUPS;
1567          $result = groups_user_groups_visible($course, $user4->id, $cm);
1568          $this->assertTrue($result); // Cm with visible groups.
1569  
1570          // For teacher with access all groups.
1571  
1572          // No groups , not forced.
1573          $course->groupmode = NOGROUPS;
1574          $course->groupmodeforce = false;
1575          update_course($course);
1576  
1577          $this->setUser($user3);
1578  
1579          $result = groups_user_groups_visible($course, $user1->id);
1580          $this->assertTrue($result);
1581          $result = groups_user_groups_visible($course, $user1->id);
1582          $this->assertTrue($result); // Requesting all groups.
1583  
1584          $cm->groupmode = NOGROUPS;
1585          $result = groups_user_groups_visible($course, $user1->id, $cm);
1586          $this->assertTrue($result); // Cm with no groups.
1587  
1588          $cm->groupmode = SEPARATEGROUPS;
1589          $result = groups_user_groups_visible($course, $user1->id, $cm);
1590          $this->assertTrue($result); // Cm with separate groups.
1591          $result = groups_user_groups_visible($course, $user2->id, $cm);
1592          $this->assertTrue($result); // Cm with separate groups.
1593  
1594          $cm->groupmode = VISIBLEGROUPS;
1595          $result = groups_user_groups_visible($course, $user1->id, $cm);
1596          $this->assertTrue($result); // Cm with visible groups.
1597  
1598          // No groups, forced.
1599          $course->groupmode = NOGROUPS;
1600          $course->groupmodeforce = true;
1601          update_course($course);
1602          $result = groups_user_groups_visible($course, $user1->id);
1603          $this->assertTrue($result);
1604          $result = groups_user_groups_visible($course, $user1->id);
1605          $this->assertTrue($result); // Requesting all groups.
1606  
1607          $cm->groupmode = NOGROUPS;
1608          $result = groups_user_groups_visible($course, $user1->id, $cm);
1609          $this->assertTrue($result); // Cm with no groups.
1610  
1611          $cm->groupmode = SEPARATEGROUPS;
1612          $result = groups_user_groups_visible($course, $user1->id, $cm);
1613          $this->assertTrue($result); // Cm with separate groups.
1614          $result = groups_user_groups_visible($course, $user2->id, $cm);
1615          $this->assertTrue($result); // Cm with separate groups.
1616  
1617          $cm->groupmode = SEPARATEGROUPS;
1618          $result = groups_user_groups_visible($course, $user1->id, $cm);
1619          $this->assertTrue($result); // Cm with visible groups.
1620  
1621          // Visible groups, forced.
1622          $course->groupmode = VISIBLEGROUPS;
1623          $course->groupmodeforce = true;
1624          update_course($course);
1625          $result = groups_user_groups_visible($course, $user1->id);
1626          $this->assertTrue($result);
1627          $result = groups_user_groups_visible($course, $user1->id);
1628          $this->assertTrue($result); // Requesting all groups.
1629  
1630          $cm->groupmode = NOGROUPS;
1631          $result = groups_user_groups_visible($course, $user1->id, $cm);
1632          $this->assertTrue($result); // Cm with no groups.
1633  
1634          $cm->groupmode = SEPARATEGROUPS;
1635          $result = groups_user_groups_visible($course, $user1->id, $cm);
1636          $this->assertTrue($result); // Cm with separate groups.
1637          $result = groups_user_groups_visible($course, $user2->id, $cm);
1638          $this->assertTrue($result); // Cm with separate groups.
1639  
1640          $cm->groupmode = VISIBLEGROUPS;
1641          $result = groups_user_groups_visible($course, $user1->id, $cm);
1642          $this->assertTrue($result); // Cm with visible groups.
1643  
1644          // Visible groups, not forced.
1645          $course->groupmode = VISIBLEGROUPS;
1646          $course->groupmodeforce = false;
1647          update_course($course);
1648          $result = groups_user_groups_visible($course, $user1->id);
1649          $this->assertTrue($result);
1650          $result = groups_user_groups_visible($course, $user1->id);
1651          $this->assertTrue($result); // Requesting all groups.
1652  
1653          $cm->groupmode = NOGROUPS;
1654          $result = groups_user_groups_visible($course, $user1->id, $cm);
1655          $this->assertTrue($result); // Cm with no groups.
1656  
1657          $cm->groupmode = SEPARATEGROUPS;
1658          $result = groups_user_groups_visible($course, $user1->id, $cm);
1659          $this->assertTrue($result); // Cm with separate groups.
1660          $result = groups_user_groups_visible($course, $user2->id, $cm);
1661          $this->assertTrue($result); // Cm with separate groups.
1662  
1663          $cm->groupmode = VISIBLEGROUPS;
1664          $result = groups_user_groups_visible($course, $user1->id, $cm);
1665          $this->assertTrue($result); // Cm with visible groups.
1666  
1667          // Separate groups, forced.
1668          $course->groupmode = SEPARATEGROUPS;
1669          $course->groupmodeforce = true;
1670          update_course($course);
1671          $result = groups_user_groups_visible($course, $user1->id);
1672          $this->assertTrue($result);
1673          $result = groups_user_groups_visible($course, $user2->id);
1674          $this->assertTrue($result);
1675          $result = groups_user_groups_visible($course, $user2->id);
1676          $this->assertTrue($result); // Requesting all groups.
1677          $result = groups_user_groups_visible($course, $user3->id);
1678          $this->assertTrue($result); // Requesting all groups.
1679          $result = groups_user_groups_visible($course, $user3->id);
1680          $this->assertTrue($result);
1681  
1682          $cm->groupmode = NOGROUPS;
1683          $result = groups_user_groups_visible($course, $user1->id, $cm);
1684          $this->assertTrue($result); // Cm with no groups.
1685  
1686          $cm->groupmode = SEPARATEGROUPS;
1687          $result = groups_user_groups_visible($course, $user1->id, $cm);
1688          $this->assertTrue($result); // Cm with separate groups.
1689          $result = groups_user_groups_visible($course, $user2->id, $cm);
1690          $this->assertTrue($result); // Cm with separate groups.
1691          $result = groups_user_groups_visible($course, $user3->id, $cm);
1692          $this->assertTrue($result);
1693  
1694          $cm->groupmode = VISIBLEGROUPS;
1695          $result = groups_user_groups_visible($course, $user1->id, $cm);
1696          $this->assertTrue($result); // Cm with visible groups.
1697  
1698          // Separate groups, not forced.
1699          $course->groupmode = SEPARATEGROUPS;
1700          $course->groupmodeforce = false;
1701          update_course($course);
1702          $result = groups_user_groups_visible($course, $user1->id);
1703          $this->assertTrue($result);
1704          $result = groups_user_groups_visible($course, $user2->id);
1705          $this->assertTrue($result);
1706          $result = groups_user_groups_visible($course, $user2->id);
1707          $this->assertTrue($result); // Requesting all groups.
1708          $result = groups_user_groups_visible($course, $user3->id);
1709          $this->assertTrue($result); // Requesting all groups.
1710  
1711          $cm->groupmode = NOGROUPS;
1712          $result = groups_user_groups_visible($course, $user1->id, $cm);
1713          $this->assertTrue($result); // Cm with no groups.
1714  
1715          $cm->groupmode = SEPARATEGROUPS;
1716          $result = groups_user_groups_visible($course, $user1->id, $cm);
1717          $this->assertTrue($result); // Cm with separate groups.
1718          $result = groups_user_groups_visible($course, $user2->id, $cm);
1719          $this->assertTrue($result); // Cm with separate groups.
1720  
1721          $cm->groupmode = VISIBLEGROUPS;
1722          $result = groups_user_groups_visible($course, $user1->id, $cm);
1723          $this->assertTrue($result); // Cm with visible groups.
1724      }
1725  
1726      /**
1727       * Tests for groups_get_groups_members() method.
1728       */
1729      public function test_groups_get_groups_members() {
1730          $this->resetAfterTest(true);
1731          $generator = $this->getDataGenerator();
1732  
1733          // Create courses.
1734          $course1 = $generator->create_course();
1735          $course2 = $generator->create_course();
1736  
1737          // Create users.
1738          $user1 = $generator->create_user();
1739          $user2 = $generator->create_user();
1740          $user3 = $generator->create_user();
1741  
1742          // Enrol users.
1743          $generator->enrol_user($user1->id, $course1->id);
1744          $generator->enrol_user($user1->id, $course2->id);
1745          $generator->enrol_user($user2->id, $course2->id);
1746          $generator->enrol_user($user3->id, $course2->id);
1747  
1748          // Create groups.
1749          $group1 = $generator->create_group(array('courseid' => $course1->id));
1750          $group2 = $generator->create_group(array('courseid' => $course2->id));
1751          $group3 = $generator->create_group(array('courseid' => $course2->id));
1752  
1753          // Assign users to groups.
1754          $this->assertTrue($generator->create_group_member(array('groupid' => $group1->id, 'userid' => $user1->id)));
1755          $this->assertTrue($generator->create_group_member(array('groupid' => $group2->id, 'userid' => $user1->id)));
1756          $this->assertTrue($generator->create_group_member(array('groupid' => $group2->id, 'userid' => $user2->id)));
1757  
1758          // Test get_groups_members (with extra field and ordering).
1759          $members = groups_get_groups_members([$group1->id, $group2->id], ['lastaccess'], 'u.id ASC');
1760          $this->assertCount(2, $members);
1761          $this->assertEquals([$user1->id, $user2->id], array_keys($members));
1762          $this->assertTrue(isset($members[$user1->id]->lastaccess));
1763          $this->assertTrue(isset($members[$user2->id]->lastaccess));
1764  
1765          // Group with just one.
1766          $members = groups_get_groups_members([$group1->id]);
1767          $this->assertCount(1, $members);
1768          $this->assertEquals($user1->id, $members[$user1->id]->id);
1769  
1770          // Test the info matches group membership for the entire course.
1771          $groups  = groups_get_all_groups($course1->id, 0, 0, 'g.*', true);
1772          $group1withmembers = array_pop($groups);
1773  
1774          // Compare the sorted keys of both arrays (should be list of user ids).
1775          $members = array_keys($members);
1776          sort($members);
1777          $group1members = array_keys($group1withmembers->members);
1778          sort($group1members);
1779          $this->assertEquals($members, $group1members);
1780  
1781          // Group with just one plus empty group.
1782          $members = groups_get_groups_members([$group1->id, $group3->id]);
1783          $this->assertCount(1, $members);
1784          $this->assertEquals($user1->id, $members[$user1->id]->id);
1785  
1786          // Empty group.
1787          $members = groups_get_groups_members([$group3->id]);
1788          $this->assertCount(0, $members);
1789  
1790          // Test groups_get_members.
1791          $members = groups_get_members($group2->id, 'u.*', 'u.id ASC');
1792          $this->assertCount(2, $members);
1793          $this->assertEquals([$user1->id, $user2->id], array_keys($members));
1794  
1795          // Test the info matches group membership for the entire course.
1796          $groups  = groups_get_all_groups($course2->id, 0, 0, 'g.*', true);
1797          $group2withmembers = $groups[$group2->id];
1798  
1799          // Compare the sorted keys of both arrays (should be list of user ids).
1800          $members = array_keys($members);
1801          sort($members);
1802          $group2members = array_keys($group2withmembers->members);
1803          sort($group2members);
1804          $this->assertEquals($members, $group2members);
1805  
1806      }
1807  
1808      /**
1809       * Tests for groups_get_activity_shared_group_members() method.
1810       */
1811      public function test_groups_get_activity_shared_group_members() {
1812          $this->resetAfterTest(true);
1813          $generator = $this->getDataGenerator();
1814  
1815          // Create courses.
1816          $course = $generator->create_course();
1817  
1818          // Create cm.
1819          $assign = $generator->create_module("assign", array('course' => $course->id));
1820          $cm = get_coursemodule_from_instance("assign", $assign->id);
1821  
1822          // Create users.
1823          $user1 = $generator->create_user();
1824          $user2 = $generator->create_user();
1825          $user3 = $generator->create_user();
1826          $user4 = $generator->create_user();
1827  
1828          // Enrol users.
1829          $generator->enrol_user($user1->id, $course->id);
1830          $generator->enrol_user($user2->id, $course->id);
1831          $generator->enrol_user($user3->id, $course->id);
1832          $generator->enrol_user($user4->id, $course->id);
1833  
1834          // Create groups.
1835          $group1 = $generator->create_group(array('courseid' => $course->id));
1836          $group2 = $generator->create_group(array('courseid' => $course->id));
1837          $group3 = $generator->create_group(array('courseid' => $course->id));
1838  
1839          // Assign users to groups.
1840          $generator->create_group_member(array('groupid' => $group1->id, 'userid' => $user1->id));
1841          $generator->create_group_member(array('groupid' => $group2->id, 'userid' => $user1->id));
1842          $generator->create_group_member(array('groupid' => $group2->id, 'userid' => $user2->id));
1843          $generator->create_group_member(array('groupid' => $group3->id, 'userid' => $user3->id));
1844  
1845          // Retrieve users sharing groups with user1.
1846          $members = groups_get_activity_shared_group_members($cm, $user1->id);
1847          $this->assertCount(2, $members);
1848          $this->assertEqualsCanonicalizing([$user1->id, $user2->id], array_keys($members));
1849  
1850          // Retrieve users sharing groups with user2.
1851          $members = groups_get_activity_shared_group_members($cm, $user2->id);
1852          $this->assertCount(2, $members);
1853          $this->assertEqualsCanonicalizing([$user1->id, $user2->id], array_keys($members));
1854  
1855          // Retrieve users sharing groups with user3.
1856          $members = groups_get_activity_shared_group_members($cm, $user3->id);
1857          $this->assertCount(1, $members);
1858          $this->assertEquals($user3->id, $members[$user3->id]->id);
1859  
1860          // Retrieve users sharing groups with user without groups (user4).
1861          $members = groups_get_activity_shared_group_members($cm, $user4->id);
1862          $this->assertCount(0, $members);
1863  
1864          // Now, create a different activity using groupings.
1865          $grouping = $generator->create_grouping(array('courseid' => $course->id, 'name' => 'Grouping 1'));
1866          // Skip group 2.
1867          groups_assign_grouping($grouping->id, $group1->id);
1868          groups_assign_grouping($grouping->id, $group3->id);
1869  
1870          $assign = $generator->create_module("assign", array('course' => $course->id, 'groupingid' => $grouping->id));
1871          $cm = get_coursemodule_from_instance("assign", $assign->id);
1872  
1873          // Since the activity is forced to groupings (groups 1 and 3), I don't see members of group 2.
1874          $members = groups_get_activity_shared_group_members($cm, $user1->id);
1875          $this->assertCount(1, $members);
1876          $this->assertEquals($user1->id, $members[$user1->id]->id);
1877  
1878          // Add user1 to group 3 (in the grouping).
1879          $generator->create_group_member(array('groupid' => $group3->id, 'userid' => $user1->id));
1880          $members = groups_get_activity_shared_group_members($cm, $user1->id);
1881          $this->assertCount(2, $members);    // Now I see members of group 3.
1882          $this->assertEqualsCanonicalizing([$user1->id, $user3->id], array_keys($members));
1883      }
1884  }