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Differences Between: [Versions 401 and 402] [Versions 401 and 403]

   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  /**
  17   * Unit tests for the core_repository implementation of the privacy API.
  18   *
  19   * @package    core_repository
  20   * @category   test
  21   * @copyright  2018 Zig Tan <zig@moodle.com>
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  namespace core_repository\privacy;
  25  
  26  defined('MOODLE_INTERNAL') || die();
  27  
  28  use core_privacy\local\metadata\collection;
  29  use core_privacy\local\request\writer;
  30  use core_privacy\local\request\approved_contextlist;
  31  use core_repository\privacy\provider;
  32  use core_privacy\local\request\approved_userlist;
  33  
  34  /**
  35   * Unit tests for the core_repository implementation of the privacy API.
  36   *
  37   * @copyright  2018 Zig Tan <zig@moodle.com>
  38   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  39   */
  40  class provider_test extends \core_privacy\tests\provider_testcase {
  41  
  42      /**
  43       * Overriding setUp() function to always reset after tests.
  44       */
  45      public function setUp(): void {
  46          $this->resetAfterTest(true);
  47      }
  48  
  49      /**
  50       * Test for provider::get_contexts_for_userid().
  51       */
  52      public function test_get_contexts_for_userid() {
  53          // Test setup.
  54          $user = $this->getDataGenerator()->create_user();
  55          $this->setUser($user);
  56  
  57          // Test the User's retrieved contextlist is empty because no repository_instances have added for the User yet.
  58          $contextlist = provider::get_contexts_for_userid($user->id);
  59          $contexts = $contextlist->get_contexts();
  60          $this->assertCount(0, $contexts);
  61  
  62          // Create 3 repository_instances records for the User.
  63          $this->setup_test_scenario_data($user->id, 3);
  64  
  65          // Test the User's retrieved contextlist contains only one context.
  66          $contextlist = provider::get_contexts_for_userid($user->id);
  67          $contexts = $contextlist->get_contexts();
  68          $this->assertCount(1, $contexts);
  69  
  70          // Test the User's contexts equal the User's own context.
  71          $context = reset($contexts);
  72          $this->assertEquals(CONTEXT_USER, $context->contextlevel);
  73          $this->assertEquals($user->id, $context->instanceid);
  74      }
  75  
  76      /**
  77       * Test for provider::export_user_data().
  78       */
  79      public function test_export_user_data() {
  80          // Test setup.
  81          $user = $this->getDataGenerator()->create_user();
  82          $this->setUser($user);
  83  
  84          // Create 3 repository_instances records for the User.
  85          $this->setup_test_scenario_data($user->id, 3);
  86  
  87          // Test the User's retrieved contextlist contains only one context.
  88          $contextlist = provider::get_contexts_for_userid($user->id);
  89          $contexts = $contextlist->get_contexts();
  90          $this->assertCount(1, $contexts);
  91  
  92          // Test the User's contexts equal the User's own context.
  93          $context = reset($contexts);
  94          $this->assertEquals(CONTEXT_USER, $context->contextlevel);
  95          $this->assertEquals($user->id, $context->instanceid);
  96  
  97          // Retrieve repository_instances data only for this user.
  98          $approvedcontextlist = new approved_contextlist($user, 'core_repository', $contextlist->get_contextids());
  99          provider::export_user_data($approvedcontextlist);
 100  
 101          // Test the repository_instances data is exported at the User context level.
 102          $user = $approvedcontextlist->get_user();
 103          $contextuser = \context_user::instance($user->id);
 104          $writer = writer::with_context($contextuser);
 105          $this->assertTrue($writer->has_any_data());
 106      }
 107  
 108      /**
 109       * Test for provider::delete_data_for_all_users_in_context().
 110       */
 111      public function test_delete_data_for_all_users_in_context() {
 112          global $DB;
 113  
 114          // Test setup.
 115          $user = $this->getDataGenerator()->create_user();
 116          $this->setUser($user);
 117  
 118          // Create 3 repository_instances records for the User.
 119          $this->setup_test_scenario_data($user->id, 3);
 120  
 121          // Test the User's retrieved contextlist contains only one context.
 122          $contextlist = provider::get_contexts_for_userid($user->id);
 123          $contexts = $contextlist->get_contexts();
 124          $this->assertCount(1, $contexts);
 125  
 126          // Test the User's contexts equal the User's own context.
 127          $context = reset($contexts);
 128          $this->assertEquals(CONTEXT_USER, $context->contextlevel);
 129  
 130          // Delete all the User's records in mdl_repository_instances table by the specified User context.
 131          provider::delete_data_for_all_users_in_context($context);
 132  
 133          // Test the cohort roles records in mdl_repository_instances table is equals zero.
 134          $repositoryinstances = $DB->get_records('repository_instances', ['userid' => $user->id]);
 135          $this->assertCount(0, $repositoryinstances);
 136      }
 137  
 138      /**
 139       * Test for provider::delete_data_for_user().
 140       */
 141      public function test_delete_data_for_user() {
 142          global $DB;
 143  
 144          // Test setup.
 145          $user = $this->getDataGenerator()->create_user();
 146          $this->setUser($user);
 147  
 148          // Create 3 repository_instances records for the User.
 149          $this->setup_test_scenario_data($user->id, 3);
 150  
 151          // Test the User's retrieved contextlist contains only one context.
 152          $contextlist = provider::get_contexts_for_userid($user->id);
 153          $contexts = $contextlist->get_contexts();
 154          $this->assertCount(1, $contexts);
 155  
 156          // Test the User's contexts equal the User's own context.
 157          $context = reset($contexts);
 158          $this->assertEquals(CONTEXT_USER, $context->contextlevel);
 159  
 160          // Delete all the User's records in mdl_repository_instances table by the specified User approved context list.
 161          $approvedcontextlist = new approved_contextlist($user, 'repository_instances', $contextlist->get_contextids());
 162          provider::delete_data_for_user($approvedcontextlist);
 163  
 164          // Test the cohort roles records in mdl_repository_instances table is equals zero.
 165          $repositoryinstances = $DB->get_records('repository_instances', ['userid' => $user->id]);
 166          $this->assertCount(0, $repositoryinstances);
 167      }
 168  
 169      /**
 170       * Test that only users with a user context are fetched.
 171       */
 172      public function test_get_users_in_context() {
 173          $this->resetAfterTest();
 174  
 175          $component = 'core_repository';
 176          // Create a user.
 177          $user = $this->getDataGenerator()->create_user();
 178          $usercontext = \context_user::instance($user->id);
 179          $userlist = new \core_privacy\local\request\userlist($usercontext, $component);
 180          // The list of users should not return anything yet (related data still haven't been created).
 181          provider::get_users_in_context($userlist);
 182          $this->assertCount(0, $userlist);
 183  
 184          // Create 3 repository_instances records for user.
 185          $this->setup_test_scenario_data($user->id, 3);
 186  
 187          // The list of users for user context should return the user.
 188          provider::get_users_in_context($userlist);
 189          $this->assertCount(1, $userlist);
 190          $expected = [$user->id];
 191          $actual = $userlist->get_userids();
 192          $this->assertEquals($expected, $actual);
 193  
 194          // The list of users for system context should not return any users.
 195          $systemcontext = \context_system::instance();
 196          $userlist = new \core_privacy\local\request\userlist($systemcontext, $component);
 197          provider::get_users_in_context($userlist);
 198          $this->assertCount(0, $userlist);
 199      }
 200  
 201      /**
 202       * Test that data for users in approved userlist is deleted.
 203       */
 204      public function test_delete_data_for_users() {
 205          $this->resetAfterTest();
 206  
 207          $component = 'core_repository';
 208          // Create user1.
 209          $user1 = $this->getDataGenerator()->create_user();
 210          $this->setUser($user1);
 211          $usercontext1 = \context_user::instance($user1->id);
 212          // Create list of users with a related user data in usercontext1.
 213          $userlist1 = new \core_privacy\local\request\userlist($usercontext1, $component);
 214  
 215          // Create a user2.
 216          $user2 = $this->getDataGenerator()->create_user();
 217          $this->setUser($user2);
 218          $usercontext2 = \context_user::instance($user2->id);
 219          // Create list of users with a related user data in usercontext2.
 220          $userlist2 = new \core_privacy\local\request\userlist($usercontext2, $component);
 221  
 222          // Create repository_instances record for user1.
 223          $this->setup_test_scenario_data($user1->id, 1);
 224          // Create repository_instances record for user2.
 225          $this->setup_test_scenario_data($user2->id, 1);
 226  
 227          // Ensure the user list for usercontext1 contains user1.
 228          provider::get_users_in_context($userlist1);
 229          $this->assertCount(1, $userlist1);
 230          // Ensure the user list for usercontext2 contains user2.
 231          provider::get_users_in_context($userlist2);
 232          $this->assertCount(1, $userlist2);
 233  
 234          // Convert $userlist1 into an approved_contextlist.
 235          $approvedlist = new approved_userlist($usercontext1, $component, $userlist1->get_userids());
 236  
 237          // Delete using delete_data_for_user.
 238          provider::delete_data_for_users($approvedlist);
 239  
 240          // Re-fetch users in the usercontext1 - The user list should now be empty.
 241          $userlist1 = new \core_privacy\local\request\userlist($usercontext1, $component);
 242          provider::get_users_in_context($userlist1);
 243          $this->assertCount(0, $userlist1);
 244          // Re-fetch users in the usercontext2 - The user list should not be empty.
 245          $userlist2 = new \core_privacy\local\request\userlist($usercontext2, $component);
 246          provider::get_users_in_context($userlist2);
 247          $this->assertCount(1, $userlist2);
 248  
 249          // User data should be only removed in the user context.
 250          $systemcontext = \context_system::instance();
 251          // Add userlist2 to the approved user list in the system context.
 252          $approvedlist = new approved_userlist($systemcontext, $component, $userlist2->get_userids());
 253          // Delete user1 data using delete_data_for_user.
 254          provider::delete_data_for_users($approvedlist);
 255          // Re-fetch users in usercontext2 - The user list should not be empty (user2).
 256          $userlist2 = new \core_privacy\local\request\userlist($usercontext2, $component);
 257          provider::get_users_in_context($userlist2);
 258          $this->assertCount(1, $userlist2);
 259      }
 260  
 261      /**
 262       * Helper function to setup repository_instances records for testing a specific user.
 263       *
 264       * @param int $userid       The Id of the User used for testing.
 265       * @param int $noscenarios  The number of repository_instance records to create for the User.
 266       * @throws dml_exception
 267       */
 268      private function setup_test_scenario_data($userid, $noscenarios) {
 269          global $DB;
 270  
 271          for ($i = 0; $i < $noscenarios; $i++) {
 272              $repositoryinstance = (object)[
 273                  'typeid' => ($i + 1),
 274                  'name' => 'My Test Repo',
 275                  'userid' => $userid,
 276                  'contextid' => 1,
 277                  'username' => 'some username',
 278                  'password' => 'some password',
 279                  'timecreated' => date('u'),
 280                  'timemodified' => date('u'),
 281                  'readonly' => 0
 282              ];
 283              $DB->insert_record('repository_instances', $repositoryinstance);
 284          }
 285      }
 286  
 287  }