Proyectos de Subversion Moodle

<?php

// This file is part of Moodle - http://moodle.org/

//

// Moodle is free software: you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

//

// Moodle is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

namespace core_course\backup;

use backup;

use backup_controller;

use restore_controller;

use restore_dbops;

defined('MOODLE_INTERNAL') || die();

global $CFG;

require_once($CFG->dirroot . '/backup/util/includes/backup_includes.php');

require_once($CFG->dirroot . '/backup/util/includes/restore_includes.php');

require_once($CFG->dirroot . '/course/format/tests/fixtures/format_theunittest.php');

/**

 * Course restore testcase.

 *

 * @package    core_course

 * @copyright  2016 Frédéric Massart - FMCorz.net

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

class restore_test extends \advanced_testcase {

    /**

     * Backup a course and return its backup ID.

     *

     * @param int $courseid The course ID.

     * @param int $userid The user doing the backup.

     * @return string

     */

    protected function backup_course($courseid, $userid = 2) {

        $backuptempdir = make_backup_temp_directory('');

        $packer = get_file_packer('application/vnd.moodle.backup');

        $bc = new backup_controller(backup::TYPE_1COURSE, $courseid, backup::FORMAT_MOODLE, backup::INTERACTIVE_NO,

            backup::MODE_GENERAL, $userid);

        $bc->execute_plan();

        $results = $bc->get_results();

        $results['backup_destination']->extract_to_pathname($packer, "$backuptempdir/core_course_testcase");

        $bc->destroy();

        unset($bc);

        return 'core_course_testcase';

    }

    /**

     * Create a role with capabilities and permissions.

     *

     * @param string|array $caps Capability names.

     * @param int $perm Constant CAP_* to apply to the capabilities.

     * @return int The new role ID.

     */

    protected function create_role_with_caps($caps, $perm) {

        $caps = (array) $caps;

        $dg = $this->getDataGenerator();

        $roleid = $dg->create_role();

        foreach ($caps as $cap) {

            assign_capability($cap, $perm, $roleid, \context_system::instance()->id, true);

        }

        accesslib_clear_all_caches_for_unit_testing();

        return $roleid;

    }

    /**

     * Restore a course.

     *

     * @param int $backupid The backup ID.

     * @param int $courseid The course ID to restore in, or 0.

     * @param int $userid The ID of the user performing the restore.

     * @return stdClass The updated course object.

     */

    protected function restore_course($backupid, $courseid, $userid) {

        global $DB;

        $target = backup::TARGET_CURRENT_ADDING;

        if (!$courseid) {

            $target = backup::TARGET_NEW_COURSE;

            $categoryid = $DB->get_field_sql("SELECT MIN(id) FROM {course_categories}");

            $courseid = restore_dbops::create_new_course('Tmp', 'tmp', $categoryid);

        }

        $rc = new restore_controller($backupid, $courseid, backup::INTERACTIVE_NO, backup::MODE_GENERAL, $userid, $target);

        $target == backup::TARGET_NEW_COURSE ?: $rc->get_plan()->get_setting('overwrite_conf')->set_value(true);

        $this->assertTrue($rc->execute_precheck());

        $rc->execute_plan();

        $course = $DB->get_record('course', array('id' => $rc->get_courseid()));

        $rc->destroy();

        unset($rc);

        return $course;

    }

    /**

     * Restore a course to an existing course.

     *

     * @param int $backupid The backup ID.

     * @param int $courseid The course ID to restore in.

     * @param int $userid The ID of the user performing the restore.

     * @return stdClass The updated course object.

     */

    protected function restore_to_existing_course($backupid, $courseid, $userid = 2) {

        return $this->restore_course($backupid, $courseid, $userid);

    }

    /**

     * Restore a course to a new course.

     *

     * @param int $backupid The backup ID.

     * @param int $userid The ID of the user performing the restore.

     * @return stdClass The new course object.

     */

    protected function restore_to_new_course($backupid, $userid = 2) {

        return $this->restore_course($backupid, 0, $userid);

    }

    /**

     * Restore a course.

     *

     * @param int $backupid The backup ID.

     * @param int $courseid The course ID to restore in, or 0.

     * @param int $userid The ID of the user performing the restore.

     * @param int $target THe target of the restore.

     *

     * @return stdClass The updated course object.

     */

    protected function async_restore_course($backupid, $courseid, $userid, $target) {

        global $DB;

        if (!$courseid) {

            $target = backup::TARGET_NEW_COURSE;

            $categoryid = $DB->get_field_sql("SELECT MIN(id) FROM {course_categories}");

            $courseid = restore_dbops::create_new_course('Tmp', 'tmp', $categoryid);

        }

        $rc = new restore_controller($backupid, $courseid, backup::INTERACTIVE_NO, backup::MODE_ASYNC, $userid, $target);

        $target == backup::TARGET_NEW_COURSE ?: $rc->get_plan()->get_setting('overwrite_conf')->set_value(true);

        $this->assertTrue($rc->execute_precheck());

        $restoreid = $rc->get_restoreid();

        $rc->destroy();

        // Create the adhoc task.

        $asynctask = new \core\task\asynchronous_restore_task();

        $asynctask->set_custom_data(array('backupid' => $restoreid));

        \core\task\manager::queue_adhoc_task($asynctask);

        // We are expecting trace output during this test.

        $this->expectOutputRegex("/$restoreid/");

        // Execute adhoc task.

        $now = time();

        $task = \core\task\manager::get_next_adhoc_task($now);

        $this->assertInstanceOf('\\core\\task\\asynchronous_restore_task', $task);

        $task->execute();

        \core\task\manager::adhoc_task_complete($task);

        $course = $DB->get_record('course', array('id' => $rc->get_courseid()));

        return $course;

    }

    /**

     * Restore a course to an existing course.

     *

     * @param int $backupid The backup ID.

     * @param int $courseid The course ID to restore in.

     * @param int $userid The ID of the user performing the restore.

     * @param int $target The type of restore we are performing.

     * @return stdClass The updated course object.

     */

    protected function async_restore_to_existing_course($backupid, $courseid,

        $userid = 2, $target = backup::TARGET_CURRENT_ADDING) {

        return $this->async_restore_course($backupid, $courseid, $userid, $target);

    }

    /**

     * Restore a course to a new course.

     *

     * @param int $backupid The backup ID.

     * @param int $userid The ID of the user performing the restore.

     * @return stdClass The new course object.

     */

    protected function async_restore_to_new_course($backupid, $userid = 2) {

        return $this->async_restore_course($backupid, 0, $userid, 0);

    }

    public function test_async_restore_existing_idnumber_in_new_course(): void {

        $this->resetAfterTest();

        $dg = $this->getDataGenerator();

        $c1 = $dg->create_course(['idnumber' => 'ABC']);

        $backupid = $this->backup_course($c1->id);

        $c2 = $this->async_restore_to_new_course($backupid);

        // The ID number is set empty.

        $this->assertEquals('', $c2->idnumber);

    }

    public function test_async_restore_course_info_in_existing_course(): void {

        global $DB;

        $this->resetAfterTest();

        $dg = $this->getDataGenerator();

        $this->assertEquals(1, get_config('restore', 'restore_merge_course_shortname'));

        $this->assertEquals(1, get_config('restore', 'restore_merge_course_fullname'));

        $this->assertEquals(1, get_config('restore', 'restore_merge_course_startdate'));

        $startdate = mktime(12, 0, 0, 7, 1, 2016); // 01-Jul-2016.

        // Create two courses with different start dates,in each course create a chat that opens 1 week after the course start date.

        $c1 = $dg->create_course(['shortname' => 'SN', 'fullname' => 'FN', 'summary' => 'DESC', 'summaryformat' => FORMAT_MOODLE,

            'startdate' => $startdate]);

        $chat1 = $dg->create_module('chat', ['name' => 'First', 'course' => $c1->id, 'chattime' => $c1->startdate + 1 * WEEKSECS]);

        $c2 = $dg->create_course(['shortname' => 'A', 'fullname' => 'B', 'summary' => 'C', 'summaryformat' => FORMAT_PLAIN,

            'startdate' => $startdate + 2 * WEEKSECS]);

        $chat2 = $dg->create_module('chat', ['name' => 'Second', 'course' => $c2->id, 'chattime' => $c2->startdate + 1 * WEEKSECS]);

        $backupid = $this->backup_course($c1->id);

        // The information is restored but adapted because names are already taken.

        $c2 = $this->async_restore_to_existing_course($backupid, $c2->id);

        $this->assertEquals('SN_1', $c2->shortname);

        $this->assertEquals('FN copy 1', $c2->fullname);

        $this->assertEquals('DESC', $c2->summary);

        $this->assertEquals(FORMAT_MOODLE, $c2->summaryformat);

        $this->assertEquals($startdate, $c2->startdate);

        // Now course c2 has two chats - one ('Second') was already there and one ('First') was restored from the backup.

        // Their dates are exactly the same as they were in the original modules.

        $restoredchat1 = $DB->get_record('chat', ['name' => 'First', 'course' => $c2->id]);

        $restoredchat2 = $DB->get_record('chat', ['name' => 'Second', 'course' => $c2->id]);

        $this->assertEquals($chat1->chattime, $restoredchat1->chattime);

        $this->assertEquals($chat2->chattime, $restoredchat2->chattime);

    }

    public function test_async_restore_course_info_in_existing_course_delete_first(): void {

        global $DB;

        $this->resetAfterTest();

        $dg = $this->getDataGenerator();

        $this->assertEquals(1, get_config('restore', 'restore_merge_course_shortname'));

        $this->assertEquals(1, get_config('restore', 'restore_merge_course_fullname'));

        $this->assertEquals(1, get_config('restore', 'restore_merge_course_startdate'));

        $startdate = mktime(12, 0, 0, 7, 1, 2016); // 01-Jul-2016.

        // Create two courses with different start dates,in each course create a chat that opens 1 week after the course start date.

        $c1 = $dg->create_course(['shortname' => 'SN', 'fullname' => 'FN', 'summary' => 'DESC', 'summaryformat' => FORMAT_MOODLE,

            'startdate' => $startdate]);

        $chat1 = $dg->create_module('chat', ['name' => 'First', 'course' => $c1->id, 'chattime' => $c1->startdate + 1 * WEEKSECS]);

        $c2 = $dg->create_course(['shortname' => 'A', 'fullname' => 'B', 'summary' => 'C', 'summaryformat' => FORMAT_PLAIN,

            'startdate' => $startdate + 2 * WEEKSECS]);

        $chat2 = $dg->create_module('chat', ['name' => 'Second', 'course' => $c2->id, 'chattime' => $c2->startdate + 1 * WEEKSECS]);

        $backupid = $this->backup_course($c1->id);

        // The information is restored and the existing course settings is modified.

        $c2 = $this->async_restore_to_existing_course($backupid, $c2->id, 2, backup::TARGET_CURRENT_DELETING);

        $this->assertEquals(FORMAT_MOODLE, $c2->summaryformat);

        // Now course2 should have a new forum with the original forum deleted.

        $restoredchat1 = $DB->get_record('chat', ['name' => 'First', 'course' => $c2->id]);

        $restoredchat2 = $DB->get_record('chat', ['name' => 'Second', 'course' => $c2->id]);

        $this->assertEquals($chat1->chattime, $restoredchat1->chattime);

        $this->assertEmpty($restoredchat2);

    }

    public function test_restore_existing_idnumber_in_new_course(): void {

        $this->resetAfterTest();

        $dg = $this->getDataGenerator();

        $c1 = $dg->create_course(['idnumber' => 'ABC']);

        $backupid = $this->backup_course($c1->id);

        $c2 = $this->restore_to_new_course($backupid);

        // The ID number is set empty.

        $this->assertEquals('', $c2->idnumber);

    }

    public function test_restore_non_existing_idnumber_in_new_course(): void {

        global $DB;

        $this->resetAfterTest();

        $dg = $this->getDataGenerator();

        $c1 = $dg->create_course(['idnumber' => 'ABC']);

        $backupid = $this->backup_course($c1->id);

        $c1->idnumber = 'BCD';

        $DB->update_record('course', $c1);

        // The ID number changed.

        $c2 = $this->restore_to_new_course($backupid);

        $this->assertEquals('ABC', $c2->idnumber);

    }

    public function test_restore_existing_idnumber_in_existing_course(): void {

        global $DB;

        $this->resetAfterTest();

        $dg = $this->getDataGenerator();

        $c1 = $dg->create_course(['idnumber' => 'ABC']);

        $c2 = $dg->create_course(['idnumber' => 'DEF']);

        $backupid = $this->backup_course($c1->id);

        // The ID number does not change.

        $c2 = $this->restore_to_existing_course($backupid, $c2->id);

        $this->assertEquals('DEF', $c2->idnumber);

        $c1 = $DB->get_record('course', array('id' => $c1->id));

        $this->assertEquals('ABC', $c1->idnumber);

    }

    public function test_restore_non_existing_idnumber_in_existing_course(): void {

        global $DB;

        $this->resetAfterTest();

        $dg = $this->getDataGenerator();

        $c1 = $dg->create_course(['idnumber' => 'ABC']);

        $c2 = $dg->create_course(['idnumber' => 'DEF']);

        $backupid = $this->backup_course($c1->id);

        $c1->idnumber = 'XXX';

        $DB->update_record('course', $c1);

        // The ID number has changed.

        $c2 = $this->restore_to_existing_course($backupid, $c2->id);

        $this->assertEquals('ABC', $c2->idnumber);

    }

    public function test_restore_idnumber_in_existing_course_without_permissions(): void {

        global $DB;

        $this->resetAfterTest();

        $dg = $this->getDataGenerator();

        $u1 = $dg->create_user();

        $managers = get_archetype_roles('manager');

        $manager = array_shift($managers);

        $roleid = $this->create_role_with_caps('moodle/course:changeidnumber', CAP_PROHIBIT);

        $dg->role_assign($manager->id, $u1->id);

        $dg->role_assign($roleid, $u1->id);

        $c1 = $dg->create_course(['idnumber' => 'ABC']);

        $c2 = $dg->create_course(['idnumber' => 'DEF']);

        $backupid = $this->backup_course($c1->id);

        $c1->idnumber = 'XXX';

        $DB->update_record('course', $c1);

        // The ID number does not change.

        $c2 = $this->restore_to_existing_course($backupid, $c2->id, $u1->id);

        $this->assertEquals('DEF', $c2->idnumber);

    }

    public function test_restore_course_info_in_new_course(): void {

        global $DB;

        $this->resetAfterTest();

        $dg = $this->getDataGenerator();

        $startdate = mktime(12, 0, 0, 7, 1, 2016); // 01-Jul-2016.

        $c1 = $dg->create_course(['shortname' => 'SN', 'fullname' => 'FN', 'startdate' => $startdate,

            'summary' => 'DESC', 'summaryformat' => FORMAT_MOODLE]);

        $backupid = $this->backup_course($c1->id);

        // The information is restored but adapted because names are already taken.

        $c2 = $this->restore_to_new_course($backupid);

        $this->assertEquals('SN_1', $c2->shortname);

        $this->assertEquals('FN copy 1', $c2->fullname);

        $this->assertEquals('DESC', $c2->summary);

        $this->assertEquals(FORMAT_MOODLE, $c2->summaryformat);

        $this->assertEquals($startdate, $c2->startdate);

    }

    public function test_restore_course_with_users(): void {

        global $DB;

        $this->resetAfterTest();

        $this->setAdminUser();

        $dg = $this->getDataGenerator();

        // Create a user and a course, enrol user in the course. Backup this course.

        $startdate = mktime(12, 0, 0, 7, 1, 2016); // 01-Jul-2016.

        $u1 = $dg->create_user(['firstname' => 'Olivia']);

        $c1 = $dg->create_course(['shortname' => 'SN', 'fullname' => 'FN', 'startdate' => $startdate,

            'summary' => 'DESC', 'summaryformat' => FORMAT_MOODLE]);

        $dg->enrol_user($u1->id, $c1->id, 'student');

        $backupid = $this->backup_course($c1->id);

        // Delete the course and the user completely.

        delete_course($c1, false);

        delete_user($u1);

        $DB->delete_records('user', ['id' => $u1->id]);

        // Now restore this course, the user will be created and event user_created event will be triggered.

        $sink = $this->redirectEvents();

        $c2 = $this->restore_to_new_course($backupid);

        $events = $sink->get_events();

        $sink->close();

        $user = $DB->get_record('user', ['firstname' => 'Olivia'], '*', MUST_EXIST);

        $events = array_values(array_filter($events, function(\core\event\base $event) {

            return is_a($event, \core\event\user_created::class);

        }));

        $this->assertEquals(1, count($events));

        $this->assertEquals($user->id, $events[0]->relateduserid);

        $this->assertEquals($c2->id, $events[0]->other['courseid']);

        $this->assertStringContainsString("during restore of the course with id '{$c2->id}'",

            $events[0]->get_description());

    }

    public function test_restore_course_info_in_existing_course(): void {

        global $DB;

        $this->resetAfterTest();

        $dg = $this->getDataGenerator();

        $this->assertEquals(1, get_config('restore', 'restore_merge_course_shortname'));

        $this->assertEquals(1, get_config('restore', 'restore_merge_course_fullname'));

        $this->assertEquals(1, get_config('restore', 'restore_merge_course_startdate'));

        $startdate = mktime(12, 0, 0, 7, 1, 2016); // 01-Jul-2016.

        // Create two courses with different start dates,in each course create a chat that opens 1 week after the course start date.

        $c1 = $dg->create_course(['shortname' => 'SN', 'fullname' => 'FN', 'summary' => 'DESC', 'summaryformat' => FORMAT_MOODLE,

            'startdate' => $startdate]);

        $chat1 = $dg->create_module('chat', ['name' => 'First', 'course' => $c1->id, 'chattime' => $c1->startdate + 1 * WEEKSECS]);

        $c2 = $dg->create_course(['shortname' => 'A', 'fullname' => 'B', 'summary' => 'C', 'summaryformat' => FORMAT_PLAIN,

            'startdate' => $startdate + 2 * WEEKSECS]);

        $chat2 = $dg->create_module('chat', ['name' => 'Second', 'course' => $c2->id, 'chattime' => $c2->startdate + 1 * WEEKSECS]);

        $backupid = $this->backup_course($c1->id);

        // The information is restored but adapted because names are already taken.

        $c2 = $this->restore_to_existing_course($backupid, $c2->id);

        $this->assertEquals('SN_1', $c2->shortname);

        $this->assertEquals('FN copy 1', $c2->fullname);

        $this->assertEquals('DESC', $c2->summary);

        $this->assertEquals(FORMAT_MOODLE, $c2->summaryformat);

        $this->assertEquals($startdate, $c2->startdate);

        // Now course c2 has two chats - one ('Second') was already there and one ('First') was restored from the backup.

        // Their dates are exactly the same as they were in the original modules.

        $restoredchat1 = $DB->get_record('chat', ['name' => 'First', 'course' => $c2->id]);

        $restoredchat2 = $DB->get_record('chat', ['name' => 'Second', 'course' => $c2->id]);

        $this->assertEquals($chat1->chattime, $restoredchat1->chattime);

        $this->assertEquals($chat2->chattime, $restoredchat2->chattime);

    }

    public function test_restore_course_shortname_in_existing_course_without_permissions(): void {

        global $DB;

        $this->resetAfterTest();

        $dg = $this->getDataGenerator();

        $u1 = $dg->create_user();

        $managers = get_archetype_roles('manager');

        $manager = array_shift($managers);

        $roleid = $this->create_role_with_caps('moodle/course:changeshortname', CAP_PROHIBIT);

        $dg->role_assign($manager->id, $u1->id);

        $dg->role_assign($roleid, $u1->id);

        $c1 = $dg->create_course(['shortname' => 'SN', 'fullname' => 'FN', 'summary' => 'DESC', 'summaryformat' => FORMAT_MOODLE]);

        $c2 = $dg->create_course(['shortname' => 'A1', 'fullname' => 'B1', 'summary' => 'C1', 'summaryformat' => FORMAT_PLAIN]);

        // The shortname does not change.

        $backupid = $this->backup_course($c1->id);

        $restored = $this->restore_to_existing_course($backupid, $c2->id, $u1->id);

        $this->assertEquals($c2->shortname, $restored->shortname);

        $this->assertEquals('FN copy 1', $restored->fullname);

        $this->assertEquals('DESC', $restored->summary);

        $this->assertEquals(FORMAT_MOODLE, $restored->summaryformat);

    }

    public function test_restore_course_fullname_in_existing_course_without_permissions(): void {

        global $DB;

        $this->resetAfterTest();

        $dg = $this->getDataGenerator();

        $u1 = $dg->create_user();

        $managers = get_archetype_roles('manager');

        $manager = array_shift($managers);

        $roleid = $this->create_role_with_caps('moodle/course:changefullname', CAP_PROHIBIT);

        $dg->role_assign($manager->id, $u1->id);

        $dg->role_assign($roleid, $u1->id);

        $c1 = $dg->create_course(['shortname' => 'SN', 'fullname' => 'FN', 'summary' => 'DESC', 'summaryformat' => FORMAT_MOODLE]);

        $c2 = $dg->create_course(['shortname' => 'A1', 'fullname' => 'B1', 'summary' => 'C1', 'summaryformat' => FORMAT_PLAIN]);

        // The fullname does not change.

        $backupid = $this->backup_course($c1->id);

        $restored = $this->restore_to_existing_course($backupid, $c2->id, $u1->id);

        $this->assertEquals('SN_1', $restored->shortname);

        $this->assertEquals($c2->fullname, $restored->fullname);

        $this->assertEquals('DESC', $restored->summary);

        $this->assertEquals(FORMAT_MOODLE, $restored->summaryformat);

    }

    public function test_restore_course_summary_in_existing_course_without_permissions(): void {

        global $DB;

        $this->resetAfterTest();

        $dg = $this->getDataGenerator();

        $u1 = $dg->create_user();

        $managers = get_archetype_roles('manager');

        $manager = array_shift($managers);

        $roleid = $this->create_role_with_caps('moodle/course:changesummary', CAP_PROHIBIT);

        $dg->role_assign($manager->id, $u1->id);

        $dg->role_assign($roleid, $u1->id);

        $c1 = $dg->create_course(['shortname' => 'SN', 'fullname' => 'FN', 'summary' => 'DESC', 'summaryformat' => FORMAT_MOODLE]);

        $c2 = $dg->create_course(['shortname' => 'A1', 'fullname' => 'B1', 'summary' => 'C1', 'summaryformat' => FORMAT_PLAIN]);

        // The summary and format do not change.

        $backupid = $this->backup_course($c1->id);

        $restored = $this->restore_to_existing_course($backupid, $c2->id, $u1->id);

        $this->assertEquals('SN_1', $restored->shortname);

        $this->assertEquals('FN copy 1', $restored->fullname);

        $this->assertEquals($c2->summary, $restored->summary);

        $this->assertEquals($c2->summaryformat, $restored->summaryformat);

    }

    public function test_restore_course_startdate_in_existing_course_without_permissions(): void {

        global $DB;

        $this->resetAfterTest();

        $dg = $this->getDataGenerator();

        $u1 = $dg->create_user();

        $managers = get_archetype_roles('manager');

        $manager = array_shift($managers);

        $roleid = $this->create_role_with_caps('moodle/restore:rolldates', CAP_PROHIBIT);

        $dg->role_assign($manager->id, $u1->id);

        $dg->role_assign($roleid, $u1->id);

        // Create two courses with different start dates,in each course create a chat that opens 1 week after the course start date.

        $startdate1 = mktime(12, 0, 0, 7, 1, 2016); // 01-Jul-2016.

        $startdate2 = mktime(12, 0, 0, 1, 13, 2000); // 13-Jan-2000.

        $c1 = $dg->create_course(['shortname' => 'SN', 'fullname' => 'FN', 'summary' => 'DESC', 'summaryformat' => FORMAT_MOODLE,

            'startdate' => $startdate1]);

        $chat1 = $dg->create_module('chat', ['name' => 'First', 'course' => $c1->id, 'chattime' => $c1->startdate + 1 * WEEKSECS]);

        $c2 = $dg->create_course(['shortname' => 'A', 'fullname' => 'B', 'summary' => 'C', 'summaryformat' => FORMAT_PLAIN,

            'startdate' => $startdate2]);

        $chat2 = $dg->create_module('chat', ['name' => 'Second', 'course' => $c2->id, 'chattime' => $c2->startdate + 1 * WEEKSECS]);

        // The startdate does not change.

        $backupid = $this->backup_course($c1->id);

        $restored = $this->restore_to_existing_course($backupid, $c2->id, $u1->id);

        $this->assertEquals('SN_1', $restored->shortname);

        $this->assertEquals('FN copy 1', $restored->fullname);

        $this->assertEquals('DESC', $restored->summary);

        $this->assertEquals(FORMAT_MOODLE, $restored->summaryformat);

        $this->assertEquals($startdate2, $restored->startdate);

        // Now course c2 has two chats - one ('Second') was already there and one ('First') was restored from the backup.

        // Start date of the restored chat ('First') was changed to be 1 week after the c2 start date.

        $restoredchat1 = $DB->get_record('chat', ['name' => 'First', 'course' => $c2->id]);

        $restoredchat2 = $DB->get_record('chat', ['name' => 'Second', 'course' => $c2->id]);

        $this->assertNotEquals($chat1->chattime, $restoredchat1->chattime);

        $this->assertEquals($chat2->chattime, $restoredchat2->chattime);

        $this->assertEquals($c2->startdate + 1 * WEEKSECS, $restoredchat2->chattime);

    }

    /**

     * Tests course restore with editor in course format.

     *

     * @author Matthew Hilton

     * @covers \core_courseformat

     */

    public function test_restore_editor_courseformat(): void {

        $this->resetAfterTest();

        // Setup user with restore permissions.

        $dg = $this->getDataGenerator();

        $u1 = $dg->create_user();

        $managers = get_archetype_roles('manager');

        $manager = array_shift($managers);

        $dg->role_assign($manager->id, $u1->id);

        // Create a course with an editor item in the course format.

        $courseformatoptiondata = (object) [

            "hideoddsections" => 1,

            'summary_editor' => [

                'text' => '<p>Somewhere over the rainbow</p><p>The <b>quick</b> brown fox jumpos over the lazy dog.</p>',

                'format' => 1

            ]

        ];

        $course1 = $dg->create_course(['format' => 'theunittest']);

        $course2 = $dg->create_course(['format' => 'theunittest']);

        $this->assertEquals('theunittest', $course1->format);

        course_create_sections_if_missing($course1, array(0, 1));

        // Set the course format.

        $courseformat = course_get_format($course1);

        $courseformat->update_course_format_options($courseformatoptiondata);

        // Backup and restore the course.

        $backupid = $this->backup_course($course1->id);

        $this->restore_to_existing_course($backupid, $course2->id, $u1->id);

        // Get the restored course format.

        $restoredformat = course_get_format($course2);

        $restoredformatoptions = $restoredformat->get_format_options();

        $this->assertEqualsCanonicalizing($courseformatoptiondata, (object) $restoredformatoptions);

    }

}