<?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/>.

/**
 * Course related unit tests
 *
 * @package    core_course
 * @copyright  2014 Marina Glancy
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 * @coversDefaultClass \core_courseformat\base
 */
class base_test extends advanced_testcase {

    /**
     * Setup to ensure that fixtures are loaded.
     */
    public static function setupBeforeClass(): void {
        global $CFG;
        require_once($CFG->dirroot . '/course/lib.php');
        require_once($CFG->dirroot . '/course/format/tests/fixtures/format_theunittest.php');
        require_once($CFG->dirroot . '/course/format/tests/fixtures/format_theunittest_output_course_format_state.php');
        require_once($CFG->dirroot . '/course/format/tests/fixtures/format_theunittest_output_course_format_invalidoutput.php');
    }

    /**
     * Tests the save and load functionality.
     *
     * @author Jason den Dulk
     * @covers \core_courseformat
     */
    public function test_courseformat_saveandload() {
        $this->resetAfterTest();

        $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
            ]
        ];
        $generator = $this->getDataGenerator();
        $course1 = $generator->create_course(array('format' => 'theunittest'));
        $this->assertEquals('theunittest', $course1->format);
        course_create_sections_if_missing($course1, array(0, 1));

        $courseformat = course_get_format($course1);
        $courseformat->update_course_format_options($courseformatoptiondata);

        $savedcourseformatoptiondata = $courseformat->get_format_options();

        $this->assertEqualsCanonicalizing($courseformatoptiondata, (object) $savedcourseformatoptiondata);
    }

    public function test_available_hook() {
        global $DB;
        $this->resetAfterTest();

        // Generate a course with two sections (0 and 1) and two modules. Course format is set to 'theunittest'.
        $generator = $this->getDataGenerator();
        $course1 = $generator->create_course(array('format' => 'theunittest'));
        $this->assertEquals('theunittest', $course1->format);
        course_create_sections_if_missing($course1, array(0, 1));
        $assign0 = $generator->create_module('assign', array('course' => $course1, 'section' => 0));
        $assign1 = $generator->create_module('assign', array('course' => $course1, 'section' => 1));
        $assign2 = $generator->create_module('assign', array('course' => $course1, 'section' => 0, 'visible' => 0));

        // Create a courseoverview role based on the student role.
        $roleattr = array('name' => 'courseoverview', 'shortname' => 'courseoverview', 'archetype' => 'student');
        $generator->create_role($roleattr);

        // Create user student, editingteacher, teacher and courseoverview.
        $student = $generator->create_user();
        $teacher = $generator->create_user();
        $editingteacher = $generator->create_user();
        $courseoverviewuser = $generator->create_user();

        // Enrol users into their roles.
        $roleids = $DB->get_records_menu('role', null, '', 'shortname, id');
        $generator->enrol_user($student->id, $course1->id, $roleids['student']);
        $generator->enrol_user($teacher->id, $course1->id, $roleids['teacher']);
        $generator->enrol_user($editingteacher->id, $course1->id, $roleids['editingteacher']);
        $generator->enrol_user($courseoverviewuser->id, $course1->id, $roleids['courseoverview']);

        // Remove the ignoreavailabilityrestrictions from the teacher role.
        role_change_permission($roleids['teacher'], context_system::instance(0),
                'moodle/course:ignoreavailabilityrestrictions', CAP_PREVENT);

        // Allow the courseoverview role to ingore available restriction.
        role_change_permission($roleids['courseoverview'], context_system::instance(0),
                'moodle/course:ignoreavailabilityrestrictions', CAP_ALLOW);

        // Make sure that initially both sections and both modules are available and visible for a student.
        $modinfostudent = get_fast_modinfo($course1, $student->id);
        $this->assertTrue($modinfostudent->get_section_info(1)->available);
        $this->assertTrue($modinfostudent->get_cm($assign0->cmid)->available);
        $this->assertTrue($modinfostudent->get_cm($assign0->cmid)->uservisible);
        $this->assertTrue($modinfostudent->get_cm($assign1->cmid)->available);
        $this->assertTrue($modinfostudent->get_cm($assign1->cmid)->uservisible);
        $this->assertFalse($modinfostudent->get_cm($assign2->cmid)->uservisible);

        // Set 'hideoddsections' for the course to 1.
        // Section1 and assign1 will be unavailable, uservisible will be false for student and true for teacher.
        $data = (object)array('id' => $course1->id, 'hideoddsections' => 1);
        course_get_format($course1)->update_course_format_options($data);
        $modinfostudent = get_fast_modinfo($course1, $student->id);
        $this->assertFalse($modinfostudent->get_section_info(1)->available);
        $this->assertEmpty($modinfostudent->get_section_info(1)->availableinfo);
        $this->assertFalse($modinfostudent->get_section_info(1)->uservisible);
        $this->assertTrue($modinfostudent->get_cm($assign0->cmid)->available);
        $this->assertTrue($modinfostudent->get_cm($assign0->cmid)->uservisible);
        $this->assertFalse($modinfostudent->get_cm($assign1->cmid)->available);
        $this->assertFalse($modinfostudent->get_cm($assign1->cmid)->uservisible);
        $this->assertFalse($modinfostudent->get_cm($assign2->cmid)->uservisible);

        $modinfoteacher = get_fast_modinfo($course1, $teacher->id);
        $this->assertFalse($modinfoteacher->get_section_info(1)->available);
        $this->assertEmpty($modinfoteacher->get_section_info(1)->availableinfo);
        $this->assertFalse($modinfoteacher->get_section_info(1)->uservisible);
        $this->assertTrue($modinfoteacher->get_cm($assign0->cmid)->available);
        $this->assertTrue($modinfoteacher->get_cm($assign0->cmid)->uservisible);
        $this->assertFalse($modinfoteacher->get_cm($assign1->cmid)->available);
        $this->assertFalse($modinfoteacher->get_cm($assign1->cmid)->uservisible);
        $this->assertTrue($modinfoteacher->get_cm($assign2->cmid)->available);
        $this->assertTrue($modinfoteacher->get_cm($assign2->cmid)->uservisible);

        $modinfoteacher = get_fast_modinfo($course1, $editingteacher->id);
        $this->assertFalse($modinfoteacher->get_section_info(1)->available);
        $this->assertEmpty($modinfoteacher->get_section_info(1)->availableinfo);
        $this->assertTrue($modinfoteacher->get_section_info(1)->uservisible);
        $this->assertTrue($modinfoteacher->get_cm($assign0->cmid)->available);
        $this->assertTrue($modinfoteacher->get_cm($assign0->cmid)->uservisible);
        $this->assertFalse($modinfoteacher->get_cm($assign1->cmid)->available);
        $this->assertTrue($modinfoteacher->get_cm($assign1->cmid)->uservisible);
        $this->assertTrue($modinfoteacher->get_cm($assign2->cmid)->uservisible);

        $modinfocourseoverview = get_fast_modinfo($course1, $courseoverviewuser->id);
        $this->assertFalse($modinfocourseoverview->get_section_info(1)->available);
        $this->assertEmpty($modinfocourseoverview->get_section_info(1)->availableinfo);
        $this->assertTrue($modinfocourseoverview->get_section_info(1)->uservisible);
        $this->assertTrue($modinfocourseoverview->get_cm($assign0->cmid)->available);
        $this->assertTrue($modinfocourseoverview->get_cm($assign0->cmid)->uservisible);
        $this->assertFalse($modinfocourseoverview->get_cm($assign1->cmid)->available);
        $this->assertTrue($modinfocourseoverview->get_cm($assign1->cmid)->uservisible);
        $this->assertFalse($modinfocourseoverview->get_cm($assign2->cmid)->uservisible);

        // Set 'hideoddsections' for the course to 2.
        // Section1 and assign1 will be unavailable, uservisible will be false for student and true for teacher.
        // Property availableinfo will be not empty.
        $data = (object)array('id' => $course1->id, 'hideoddsections' => 2);
        course_get_format($course1)->update_course_format_options($data);
        $modinfostudent = get_fast_modinfo($course1, $student->id);
        $this->assertFalse($modinfostudent->get_section_info(1)->available);
        $this->assertNotEmpty($modinfostudent->get_section_info(1)->availableinfo);
        $this->assertFalse($modinfostudent->get_section_info(1)->uservisible);
        $this->assertTrue($modinfostudent->get_cm($assign0->cmid)->available);
        $this->assertTrue($modinfostudent->get_cm($assign0->cmid)->uservisible);
        $this->assertFalse($modinfostudent->get_cm($assign1->cmid)->available);
        $this->assertFalse($modinfostudent->get_cm($assign1->cmid)->uservisible);

        $modinfoteacher = get_fast_modinfo($course1, $editingteacher->id);
        $this->assertFalse($modinfoteacher->get_section_info(1)->available);
        $this->assertNotEmpty($modinfoteacher->get_section_info(1)->availableinfo);
        $this->assertTrue($modinfoteacher->get_section_info(1)->uservisible);
        $this->assertTrue($modinfoteacher->get_cm($assign0->cmid)->available);
        $this->assertTrue($modinfoteacher->get_cm($assign0->cmid)->uservisible);
        $this->assertFalse($modinfoteacher->get_cm($assign1->cmid)->available);
        $this->assertTrue($modinfoteacher->get_cm($assign1->cmid)->uservisible);
    }

    /**
     * Test for supports_news() with a course format plugin that doesn't define 'news_items' in default blocks.
     */
    public function test_supports_news() {
        $this->resetAfterTest();
        $format = course_get_format((object)['format' => 'testformat']);
        $this->assertFalse($format->supports_news());
    }

    /**
     * Test for supports_news() for old course format plugins that defines 'news_items' in default blocks.
     */
    public function test_supports_news_legacy() {
        $this->resetAfterTest();
        $format = course_get_format((object)['format' => 'testlegacy']);
        $this->assertTrue($format->supports_news());
    }

    /**
     * Test for get_view_url() to ensure that the url is only given for the correct cases
     */
    public function test_get_view_url() {
        global $CFG;
        $this->resetAfterTest();

        $linkcoursesections = $CFG->linkcoursesections;

        // Generate a course with two sections (0 and 1) and two modules. Course format is set to 'testformat'.
        // This will allow us to test the default implementation of get_view_url.
        $generator = $this->getDataGenerator();
        $course1 = $generator->create_course(array('format' => 'testformat'));
        course_create_sections_if_missing($course1, array(0, 1));

        $data = (object)['id' => $course1->id];
        $format = course_get_format($course1);
        $format->update_course_format_options($data);

        // In page.
        $CFG->linkcoursesections = 0;
        $this->assertNotEmpty($format->get_view_url(null));
        $this->assertNotEmpty($format->get_view_url(0));
        $this->assertNotEmpty($format->get_view_url(1));
        $CFG->linkcoursesections = 1;
        $this->assertNotEmpty($format->get_view_url(null));
        $this->assertNotEmpty($format->get_view_url(0));
        $this->assertNotEmpty($format->get_view_url(1));

        // Navigation.
        $CFG->linkcoursesections = 0;
        $this->assertNull($format->get_view_url(1, ['navigation' => 1]));
        $this->assertNull($format->get_view_url(0, ['navigation' => 1]));
        $CFG->linkcoursesections = 1;
        $this->assertNotEmpty($format->get_view_url(1, ['navigation' => 1]));
        $this->assertNotEmpty($format->get_view_url(0, ['navigation' => 1]));

> 
    }
>         // Expand section.

>         // The current course format $format uses the format 'testformat' which does not use sections.
    /**
>         // Thus, the 'expanded' parameter does not do anything.
     * Test for get_output_classname method.
>         $viewurl = $format->get_view_url(1);
     *
>         $this->assertNull($viewurl->get_param('expandsection'));
     * @dataProvider get_output_classname_provider
>         $viewurl = $format->get_view_url(1, ['expanded' => 1]);
     * @param string $find the class to find
>         $this->assertNull($viewurl->get_param('expandsection'));
     * @param string $result the expected result classname
>         $viewurl = $format->get_view_url(1, ['expanded' => 0]);
     * @param bool $exception if the method will raise an exception
>         $this->assertNull($viewurl->get_param('expandsection'));
     */
>         // We now use a course format which uses sections.
    public function test_get_output_classname($find, $result, $exception) {
>         $course2 = $generator->create_course(['format' => 'testformatsections']);
        $this->resetAfterTest();
>         course_create_sections_if_missing($course1, [0, 2]);

>         $formatwithsections = course_get_format($course2);
        $course = $this->getDataGenerator()->create_course(['format' => 'theunittest']);
>         $viewurl = $formatwithsections->get_view_url(2);
        $courseformat = course_get_format($course);
>         $this->assertEquals(2, $viewurl->get_param('expandsection'));

>         $viewurl = $formatwithsections->get_view_url(2, ['expanded' => 1]);
        if ($exception) {
>         $this->assertEquals(2, $viewurl->get_param('expandsection'));
            $this->expectException(coding_exception::class);
>         $viewurl = $formatwithsections->get_view_url(2, ['expanded' => 0]);
        }
>         $this->assertNull($viewurl->get_param('expandsection'));



        $courseclass = $courseformat->get_output_classname($find);
        $this->assertEquals($result, $courseclass);
    }

    /**
     * Data provider for test_get_output_classname.
     *
     * @return array the testing scenarios
     */
    public function get_output_classname_provider(): array {
        return [
            'overridden class' => [
                'find' => 'state\\course',
                'result' => 'format_theunittest\\output\\courseformat\\state\\course',
                'exception' => false,
            ],
            'original class' => [
                'find' => 'state\\section',
                'result' => 'core_courseformat\\output\\local\\state\\section',
                'exception' => false,
            ],
            'invalid overridden class' => [
                'find' => 'state\\invalidoutput',
                'result' => '',
                'exception' => true,
            ],
        ];
    }

    /**
     * Test for the default delete format data behaviour.
     *
     * @covers ::get_sections_preferences
     */
    public function test_get_sections_preferences() {
        $this->resetAfterTest();
        $generator = $this->getDataGenerator();
        $course = $generator->create_course();
        $user = $generator->create_and_enrol($course, 'student');

        // Create fake preferences generated by the frontend js module.
        $data = (object)[
            'pref1' => [1,2],
            'pref2' => [1],
        ];
        set_user_preference('coursesectionspreferences_' . $course->id, json_encode($data), $user->id);

        $format = course_get_format($course);

        // Load data from user 1.
        $this->setUser($user);
        $preferences = $format->get_sections_preferences();

        $this->assertEquals(
            (object)['pref1' => true, 'pref2' => true],
            $preferences[1]
        );
        $this->assertEquals(
            (object)['pref1' => true],
            $preferences[2]
        );
    }

    /**
     * Test for the default delete format data behaviour.
     *
     * @covers ::set_sections_preference
     */
    public function test_set_sections_preference() {
        $this->resetAfterTest();
        $generator = $this->getDataGenerator();
        $course = $generator->create_course();
        $user = $generator->create_and_enrol($course, 'student');

        $format = course_get_format($course);
        $this->setUser($user);

        // Load data from user 1.
        $format->set_sections_preference('pref1', [1, 2]);
        $format->set_sections_preference('pref2', [1]);
        $format->set_sections_preference('pref3', []);

        $preferences = $format->get_sections_preferences();
        $this->assertEquals(
            (object)['pref1' => true, 'pref2' => true],
            $preferences[1]
        );
        $this->assertEquals(
            (object)['pref1' => true],
            $preferences[2]
        );
    }

    /**
     * Test that retrieving last section number for a course
     *
     * @covers ::get_last_section_number
     */
    public function test_get_last_section_number(): void {
        global $DB;

        $this->resetAfterTest();

        // Course with two additional sections.
        $courseone = $this->getDataGenerator()->create_course(['numsections' => 2]);
        $this->assertEquals(2, course_get_format($courseone)->get_last_section_number());

        // Course without additional sections, section zero is the "default" section that always exists.
        $coursetwo = $this->getDataGenerator()->create_course(['numsections' => 0]);
        $this->assertEquals(0, course_get_format($coursetwo)->get_last_section_number());

        // Course without additional sections, manually remove section zero, as "course_delete_section" prevents that. This
        // simulates course data integrity issues that previously triggered errors.
        $coursethree = $this->getDataGenerator()->create_course(['numsections' => 0]);
        $DB->delete_records('course_sections', ['course' => $coursethree->id, 'section' => 0]);

        $this->assertEquals(-1, course_get_format($coursethree)->get_last_section_number());
    }

    /**
     * Test for the default delete format data behaviour.
     *
     * @covers ::delete_format_data
     * @dataProvider delete_format_data_provider
     * @param bool $usehook if it should use course_delete to trigger $format->delete_format_data as a hook
     */
    public function test_delete_format_data(bool $usehook) {
        global $DB;

        $this->resetAfterTest();

        $generator = $this->getDataGenerator();
        $course = $generator->create_course();
        course_create_sections_if_missing($course, [0, 1]);
        $user = $generator->create_and_enrol($course, 'student');

        // Create a coursesectionspreferences_XX preference.
        $key = 'coursesectionspreferences_' . $course->id;
        $fakevalue = 'No dark sarcasm in the classroom';
        set_user_preference($key, $fakevalue, $user->id);
        $this->assertEquals(
            $fakevalue,
            $DB->get_field('user_preferences', 'value', ['name' => $key, 'userid' => $user->id])
        );

        // Create another random user preference.
        $key2 = 'somepreference';
        $fakevalue2 = "All in all it's just another brick in the wall";
        set_user_preference($key2, $fakevalue2, $user->id);
        $this->assertEquals(
            $fakevalue2,
            $DB->get_field('user_preferences', 'value', ['name' => $key2, 'userid' => $user->id])
        );

        if ($usehook) {
            delete_course($course, false);
        } else {
            $format = course_get_format($course);
            $format->delete_format_data();
        }

        // Check which the preferences exists.
        $this->assertFalse(
            $DB->record_exists('user_preferences', ['name' => $key, 'userid' => $user->id])
        );
        set_user_preference($key2, $fakevalue2, $user->id);
        $this->assertEquals(
            $fakevalue2,
            $DB->get_field('user_preferences', 'value', ['name' => $key2, 'userid' => $user->id])
        );
    }

    /**
     * Data provider for test_delete_format_data.
     *
     * @return array the testing scenarios
     */
    public function delete_format_data_provider(): array {
        return [
            'direct call' => [
                'usehook' => false
            ],
            'use hook' => [
                'usehook' => true,
            ]
        ];
    }

> 
}
>     /**

>      * Test duplicate_section()
/**
>      * @covers ::duplicate_section
 * Class format_testformat.
>      */
 *
>     public function test_duplicate_section() {
 * A test class that simulates a course format that doesn't define 'news_items' in default blocks.
>         global $DB;
 *
> 
 * @copyright 2016 Jun Pataleta <jun@moodle.com>
>         $this->setAdminUser();
 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
>         $this->resetAfterTest();
 */
> 
class format_testformat extends core_courseformat\base {
>         $generator = $this->getDataGenerator();
    /**
>         $course = $generator->create_course();
     * Returns the list of blocks to be automatically added for the newly created course.
>         $format = course_get_format($course);
     *
> 
     * @return array
>         $originalsection = $DB->get_record('course_sections', ['course' => $course->id, 'section' => 1], '*', MUST_EXIST);
     */
>         $generator->create_module('page', ['course' => $course, 'section' => $originalsection->section]);
    public function get_default_blocks() {
>         $generator->create_module('page', ['course' => $course, 'section' => $originalsection->section]);
        return [
>         $generator->create_module('page', ['course' => $course, 'section' => $originalsection->section]);
            BLOCK_POS_RIGHT => [],
> 
            BLOCK_POS_LEFT => []
>         $originalmodcount = $DB->count_records('course_modules', ['course' => $course->id, 'section' => $originalsection->id]);
        ];
>         $this->assertEquals(3, $originalmodcount);
    }
> 
}
>         $modinfo = get_fast_modinfo($course);

>         $sectioninfo = $modinfo->get_section_info($originalsection->section, MUST_EXIST);
/**
> 
 * Class format_testlegacy.
>         $newsection = $format->duplicate_section($sectioninfo);
 *
> 
 * A test class that simulates old course formats that define 'news_items' in default blocks.
>         // Verify properties are the same.
 *
>         foreach ($originalsection as $prop => $value) {
 * @copyright 2016 Jun Pataleta <jun@moodle.com>
>             if ($prop == 'id' || $prop == 'sequence' || $prop == 'section' || $prop == 'timemodified') {
 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
>                 continue;
 */
>             }
class format_testlegacy extends core_courseformat\base {
>             $this->assertEquals($value, $newsection->$prop);
    /**
>         }
     * Returns the list of blocks to be automatically added for the newly created course.
> 
     *
>         $newmodcount = $DB->count_records('course_modules', ['course' => $course->id, 'section' => $newsection->id]);
     * @return array
>         $this->assertEquals($originalmodcount, $newmodcount);
     */
>     }
    public function get_default_blocks() {
> 
        return [
>     /**
            BLOCK_POS_RIGHT => ['news_items'],
>      * Test for the default delete format data behaviour.
            BLOCK_POS_LEFT => []
>      *
        ];
>      * @covers ::get_format_string
    }
>      * @dataProvider get_format_string_provider
}
>      * @param string $key the string key
>      * @param string|null $data any string data
>      * @param array|null $expectedstring the expected string (null for exception)
>      */
>     public function test_get_format_string(string $key, ?string $data, ?array $expectedstring) {
>         global $DB;
> 
>         $this->resetAfterTest();
> 
>         $generator = $this->getDataGenerator();
>         $course = $generator->create_course(['format' => 'topics']);
> 
>         if ($expectedstring) {
>             $expected = get_string($expectedstring[0], $expectedstring[1], $expectedstring[2]);
>         } else {
>             $this->expectException(\coding_exception::class);
>         }
>         $format = course_get_format($course);
>         $result = $format->get_format_string($key, $data);
>         $this->assertEquals($expected, $result);
>     }
> 
>     /**
>      * Data provider for test_get_format_string.
>      *
>      * @return array the testing scenarios
>      */
>     public function get_format_string_provider(): array {
>         return [
>             'Existing in format lang' => [
>                 'key' => 'sectionsdelete',
>                 'data' => null,
>                 'expectedstring' => ['sectionsdelete', 'format_topics', null],
>             ],
>             'Not existing in format lang' => [
>                 'key' => 'bulkedit',
>                 'data' => null,
>                 'expectedstring' => ['bulkedit', 'core_courseformat', null],
>             ],
>             'Existing in format lang with data' => [
>                 'key' => 'selectsection',
>                 'data' => 'Example',
>                 'expectedstring' => ['selectsection', 'format_topics', 'Example'],
>             ],
>             'Not existing in format lang with data' => [
>                 'key' => 'bulkselection',
>                 'data' => 'X',
>                 'expectedstring' => ['bulkselection', 'core_courseformat', 'X'],
>             ],
>             'Non existing string' => [
>                 'key' => '%&non_existing_string_in_lang_files$%@#',
>                 'data' => null,
>                 'expectedstring' => null,
>             ],
>         ];
>     }
> 
>     /**
>      * Test for the move_section_after method.
>      *
>      * @covers ::move_section_after
>      * @dataProvider move_section_after_provider
>      * @param string $movesection the reference of the section to move
>      * @param string $destination the reference of the destination section
>      * @param string[] $order the references of the final section order
>      */
>     public function test_move_section_after(string $movesection, string $destination, array $order) {
>         global $DB;
> 
>         $this->resetAfterTest();
> 
>         $generator = $this->getDataGenerator();
>         $course = $generator->create_course();
>         course_create_sections_if_missing($course, [0, 1, 2, 3, 4, 5]);
> 
>         $format = course_get_format($course);
>         $modinfo = $format->get_modinfo();
>         $sectionsinfo = $modinfo->get_section_info_all();
> 
>         $references = [];
>         foreach ($sectionsinfo as $section) {
>             $references["section{$section->section}"] = $section;
>         }
> 
>         $result = $format->move_section_after(
>             $references[$movesection],
>             $references[$destination]
>         );
>         $this->assertEquals(true, $result);
>         // Check the updated course section list.
>         $modinfo = $format->get_modinfo();
>         $sectionsinfo = $modinfo->get_section_info_all();
>         $this->assertCount(count($order), $sectionsinfo);
>         foreach ($sectionsinfo as $key => $section) {
>             $sectionreference = $order[$key];
>             $oldinfo = $references[$sectionreference];
>             $this->assertEquals($oldinfo->id, $section->id);
>         }
>     }
> 
>     /**
>      * Data provider for test_move_section_after.
>      *
>      * @return array the testing scenarios
>      */
>     public function move_section_after_provider(): array {
>         return [
>             'Move top' => [
>                 'movesection' => 'section3',
>                 'destination' => 'section0',
>                 'order' => [
>                     'section0',
>                     'section3',
>                     'section1',
>                     'section2',
>                     'section4',
>                     'section5',
>                 ],
>             ],
>             'Move up' => [
>                 'movesection' => 'section3',
>                 'destination' => 'section1',
>                 'order' => [
>                     'section0',
>                     'section1',
>                     'section3',
>                     'section2',
>                     'section4',
>                     'section5',
>                 ],
>             ],
>             'Do not move' => [
>                 'movesection' => 'section3',
>                 'destination' => 'section2',
>                 'order' => [
>                     'section0',
>                     'section1',
>                     'section2',
>                     'section3',
>                     'section4',
>                     'section5',
>                 ],
>             ],
>             'Same position' => [
>                 'movesection' => 'section3',
>                 'destination' => 'section3',
>                 'order' => [
>                     'section0',
>                     'section1',
>                     'section2',
>                     'section3',
>                     'section4',
>                     'section5',
>                 ],
>             ],
>             'Move down' => [
>                 'movesection' => 'section3',
>                 'destination' => 'section4',
>                 'order' => [
>                     'section0',
>                     'section1',
>                     'section2',
>                     'section4',
>                     'section3',
>                     'section5',
>                 ],
>             ],
>             'Move bottom' => [
>                 'movesection' => 'section3',
>                 'destination' => 'section5',
>                 'order' => [
>                     'section0',
>                     'section1',
>                     'section2',
>                     'section4',
>                     'section5',
>                     'section3',
>                 ],
>             ],
>         ];
>     }



>     }
> }
> 
> /**
>  * Class format_testformatsections.
>  *
>  * A test class that simulates a course format with sections.
>  *
>  * @package   core_courseformat
>  * @copyright 2023 ISB Bayern
>  * @author    Philipp Memmel
>  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
>  */
> class format_testformatsections extends core_courseformat\base {
>     /**
>      * Returns if this course format uses sections.
>      *
>      * @return true
>      */
>     public function uses_sections() {
>         return true;