lib/tests/content_test.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * Unit tests for core\content class.
  19  *
  20  * @package     core
  21  * @category    test
  22  * @copyright   2020 Michael Hawkins <michaelh@moodle.com>
  23  * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24  */
  25
  26 namespace core;
  27
  28 /**
  29  * Unit tests for core\content class.
  30  *
  31  * @package     core
  32  * @category    test
  33  * @copyright   2020 Michael Hawkins <michaelh@moodle.com>
  34  * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  35  */
  36 class content_test extends \advanced_testcase {
  37
  38     /**
  39      * A test to confirm only valid cases allow exporting of course content.
  40      */
  41     public function test_can_export_context_course() {
  42         global $DB;
  43
  44         $this->resetAfterTest();
  45
  46         $course1 = $this->getDataGenerator()->create_course();
  47         $course2 = $this->getDataGenerator()->create_course();
  48         $course1context = \context_course::instance($course1->id);
  49         $course2context = \context_course::instance($course2->id);
  50
  51         // Enrol user as student in course1 only.
  52         $user = $this->getDataGenerator()->create_and_enrol($course1, 'student');
  53
  54         // Confirm by default enrolled user does not have permission to export in course1.
  55         $this->assertFalse(content::can_export_context($course1context, $user));
  56
  57         // Make course download available on site, but not enabled in course1 or by default.
  58         set_config('downloadcoursecontentallowed', true);
  59
  60         // Confirm user still does not have permission to export (disabled in courses by default).
  61         $this->assertFalse(content::can_export_context($course1context, $user));
  62
  63         // Enable export in courses by default.
  64         set_config('downloadcontentsitedefault', DOWNLOAD_COURSE_CONTENT_ENABLED, 'moodlecourse');
  65
  66         // Confirm user now has permission to export in course1 only.
  67         $this->assertTrue(content::can_export_context($course1context, $user));
  68
  69         // Disable course downloads in course1.
  70         $course1->downloadcontent = DOWNLOAD_COURSE_CONTENT_DISABLED;
  71         $DB->update_record('course', $course1);
  72         rebuild_course_cache($course1->id);
  73
  74         // Confirm user does not have permission to export in course1.
  75         $this->assertFalse(content::can_export_context($course1context, $user));
  76
  77         // Enable course downloads in course1.
  78         $course1->downloadcontent = DOWNLOAD_COURSE_CONTENT_ENABLED;
  79         $DB->update_record('course', $course1);
  80         rebuild_course_cache($course1->id);
  81
  82         // Confirm user has permission to export in course1.
  83         $this->assertTrue(content::can_export_context($course1context, $user));
  84
  85         // Confirm user does not have permission to export in course they are not enrolled in (course2).
  86         $this->assertFalse(content::can_export_context($course2context, $user));
  87
  88         // Disable export in courses by default.
  89         set_config('downloadcontentsitedefault', DOWNLOAD_COURSE_CONTENT_DISABLED, 'moodlecourse');
  90
  91         // Confirm user still has permission to export in course1 (still enabled at the course level).
  92         $this->assertTrue(content::can_export_context($course1context, $user));
  93
  94         // Disable the course downloads feature.
  95         set_config('downloadcoursecontentallowed', false);
  96
  97         // Confirm user no longer has permission to export in course1.
  98         $this->assertFalse(content::can_export_context($course1context, $user));
  99     }
 100
 101     /**
 102      * A test to confirm unsupported contexts will return false when checking whether content can be exported.
 103      */
 104     public function test_can_export_context_unsupported_context() {
 105         $this->resetAfterTest();
 106
 107         $course1 = $this->getDataGenerator()->create_course();
 108         $systemcontext = \context_system::instance();
 109
 110         // Enrol user as student in course1 only.
 111         $user = $this->getDataGenerator()->create_and_enrol($course1, 'student');
 112
 113         // Make course download available on site (course context).
 114         set_config('downloadcoursecontentallowed', true);
 115
 116         // Confirm system context does not gain permission to export content.
 117         $this->assertFalse(content::can_export_context($systemcontext, $user));
 118     }
 119 }