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_availability;

/**

 * Unit tests for info and subclasses.

 *

 * @package core_availability

 * @copyright 2014 The Open University

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

 */

final class info_test extends \advanced_testcase {

    public function setUp(): void {

        // Load the mock condition so that it can be used.

        require_once(__DIR__ . '/fixtures/mock_condition.php');

        parent::setUp();

    }

    /**

     * Tests the info_module class (is_available, get_full_information).

     */

    public function test_info_module(): void {

        global $DB, $CFG;

        // Create a course and pages.

        $CFG->enableavailability = 0;

        $this->setAdminUser();

        $this->resetAfterTest();

        $generator = $this->getDataGenerator();

        $course = $generator->create_course();

        $rec = array('course' => $course);

        $page1 = $generator->get_plugin_generator('mod_page')->create_instance($rec);

        $page2 = $generator->get_plugin_generator('mod_page')->create_instance($rec);

        $page3 = $generator->get_plugin_generator('mod_page')->create_instance($rec);

        $page4 = $generator->get_plugin_generator('mod_page')->create_instance($rec);

        // Set up the availability option for the pages to mock options.

        $DB->set_field('course_modules', 'availability', '{"op":"|","show":true,"c":[' .

                '{"type":"mock","a":false,"m":"grandmaster flash"}]}', array('id' => $page1->cmid));

        $DB->set_field('course_modules', 'availability', '{"op":"|","show":true,"c":[' .

                '{"type":"mock","a":true,"m":"the furious five"}]}', array('id' => $page2->cmid));

        // Third page is invalid. (Fourth has no availability settings.)

        $DB->set_field('course_modules', 'availability', '{{{', array('id' => $page3->cmid));

        $modinfo = get_fast_modinfo($course);

        $cm1 = $modinfo->get_cm($page1->cmid);

        $cm2 = $modinfo->get_cm($page2->cmid);

        $cm3 = $modinfo->get_cm($page3->cmid);

        $cm4 = $modinfo->get_cm($page4->cmid);

        // Do availability and full information checks.

        $info = new info_module($cm1);

        $information = '';

        $this->assertFalse($info->is_available($information));

        $this->assertEquals('SA: grandmaster flash', $information);

        $this->assertEquals('SA: [FULL]grandmaster flash', $info->get_full_information());

        $info = new info_module($cm2);

        $this->assertTrue($info->is_available($information));

        $this->assertEquals('', $information);

        $this->assertEquals('SA: [FULL]the furious five', $info->get_full_information());

        // Check invalid one.

        $info = new info_module($cm3);

        $this->assertFalse($info->is_available($information));

        $debugging = $this->getDebuggingMessages();

        $this->resetDebugging();

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

        $this->assertStringContainsString('Invalid availability', $debugging[0]->message);

        // Check empty one.

        $info = new info_module($cm4);

        $this->assertTrue($info->is_available($information));

        $this->assertEquals('', $information);

        $this->assertEquals('', $info->get_full_information());

    }

    /**

     * Tests the info_section class (is_available, get_full_information).

     */

    public function test_info_section(): void {

        global $DB;

        // Create a course.

        $this->setAdminUser();

        $this->resetAfterTest();

        $generator = $this->getDataGenerator();

        $course = $generator->create_course(

                array('numsections' => 4), array('createsections' => true));

        // Set up the availability option for the sections to mock options.

        $DB->set_field('course_sections', 'availability', '{"op":"|","show":true,"c":[' .

                '{"type":"mock","a":false,"m":"public"}]}',

                array('course' => $course->id, 'section' => 1));

        $DB->set_field('course_sections', 'availability', '{"op":"|","show":true,"c":[' .

                '{"type":"mock","a":true,"m":"enemy"}]}',

                array('course' => $course->id, 'section' => 2));

        // Third section is invalid. (Fourth has no availability setting.)

        $DB->set_field('course_sections', 'availability', '{{{',

                array('course' => $course->id, 'section' => 3));

        $modinfo = get_fast_modinfo($course);

        $sections = $modinfo->get_section_info_all();

        // Do availability and full information checks.

        $info = new info_section($sections[1]);

        $information = '';

        $this->assertFalse($info->is_available($information));

        $this->assertEquals('SA: public', $information);

        $this->assertEquals('SA: [FULL]public', $info->get_full_information());

        $info = new info_section($sections[2]);

        $this->assertTrue($info->is_available($information));

        $this->assertEquals('', $information);

        $this->assertEquals('SA: [FULL]enemy', $info->get_full_information());

        // Check invalid one.

        $info = new info_section($sections[3]);

        $this->assertFalse($info->is_available($information));

        $debugging = $this->getDebuggingMessages();

        $this->resetDebugging();

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

        $this->assertStringContainsString('Invalid availability', $debugging[0]->message);

        // Check empty one.

        $info = new info_section($sections[4]);

        $this->assertTrue($info->is_available($information));

        $this->assertEquals('', $information);

        $this->assertEquals('', $info->get_full_information());

    }

    /**

     * Tests the is_user_visible() static function in info_module.

     */

    public function test_is_user_visible(): void {

        global $CFG, $DB;

        require_once($CFG->dirroot . '/course/lib.php');

        $this->resetAfterTest();

        $CFG->enableavailability = 0;

        // Create a course and some pages:

        // 0. Invisible due to visible=0.

        // 1. Availability restriction (mock, set to fail).

        // 2. Availability restriction on section (mock, set to fail).

        // 3. Actually visible.

        $generator = $this->getDataGenerator();

        $course = $generator->create_course(

                array('numsections' => 1), array('createsections' => true));

        $rec = array('course' => $course, );

        $pages = array();

        $pagegen = $generator->get_plugin_generator('mod_page');

        $pages[0] = $pagegen->create_instance($rec, array('visible' => 0));

        $pages[1] = $pagegen->create_instance($rec);

        $pages[2] = $pagegen->create_instance($rec);

        $pages[3] = $pagegen->create_instance($rec);

        $modinfo = get_fast_modinfo($course);

        $section = $modinfo->get_section_info(1);

        $cm = $modinfo->get_cm($pages[2]->cmid);

        moveto_module($cm, $section);

        // Set the availability restrictions in database. The enableavailability

        // setting is off so these do not take effect yet.

        $notavailable = '{"op":"|","show":true,"c":[{"type":"mock","a":false}]}';

        $DB->set_field('course_sections', 'availability',

                $notavailable, array('id' => $section->id));

        $DB->set_field('course_modules', 'availability',

                $notavailable, array('id' => $pages[1]->cmid));

        get_fast_modinfo($course, 0, true);

        // Set up 4 users - a teacher and student plus somebody who isn't even

        // on the course. Also going to use admin user and a spare student to

        // avoid cache problems.

        $roleids = $DB->get_records_menu('role', null, '', 'shortname, id');

        $teacher = $generator->create_user();

        $student = $generator->create_user();

        $student2 = $generator->create_user();

        $other = $generator->create_user();

        $admin = $DB->get_record('user', array('username' => 'admin'));

        $generator->enrol_user($teacher->id, $course->id, $roleids['teacher']);

        $generator->enrol_user($student->id, $course->id, $roleids['student']);

        $generator->enrol_user($student2->id, $course->id, $roleids['student']);

        // Basic case when availability disabled, for visible item.

        $this->assertTrue(info_module::is_user_visible($pages[3]->cmid, $student->id, false));

        // Specifying as an object should not make any queries.

        $cm = $DB->get_record('course_modules', array('id' => $pages[3]->cmid));

        $beforequeries = $DB->perf_get_queries();

        $this->assertTrue(info_module::is_user_visible($cm, $student->id, false));

        $this->assertEquals($beforequeries, $DB->perf_get_queries());

        // Specifying as cm_info for correct user should not make any more queries

        // if we have already obtained dynamic data.

        $modinfo = get_fast_modinfo($course, $student->id);

        $cminfo = $modinfo->get_cm($cm->id);

        // This will obtain dynamic data.

        $name = $cminfo->name;

        $beforequeries = $DB->perf_get_queries();

        $this->assertTrue(info_module::is_user_visible($cminfo, $student->id, false));

        $this->assertEquals($beforequeries, $DB->perf_get_queries());

        // Function does not care if you are in the course (unless $checkcourse).

        $this->assertTrue(info_module::is_user_visible($cm, $other->id, false));

        // With $checkcourse, check for enrolled, not enrolled, and admin user.

        $this->assertTrue(info_module::is_user_visible($cm, $student->id, true));

        $this->assertFalse(info_module::is_user_visible($cm, $other->id, true));

        $this->assertTrue(info_module::is_user_visible($cm, $admin->id, true));

        // With availability off, the student can access all except the

        // visible=0 one.

        $this->assertFalse(info_module::is_user_visible($pages[0]->cmid, $student->id, false));

        $this->assertTrue(info_module::is_user_visible($pages[1]->cmid, $student->id, false));

        $this->assertTrue(info_module::is_user_visible($pages[2]->cmid, $student->id, false));

        // Teacher and admin can even access the visible=0 one.

        $this->assertTrue(info_module::is_user_visible($pages[0]->cmid, $teacher->id, false));

        $this->assertTrue(info_module::is_user_visible($pages[0]->cmid, $admin->id, false));

        // Now enable availability (and clear cache).

        $CFG->enableavailability = true;

        get_fast_modinfo($course, 0, true);

        // Student cannot access the activity restricted by its own or by the

        // section's availability.

        $this->assertFalse(info_module::is_user_visible($pages[1]->cmid, $student->id, false));

        $this->assertFalse(info_module::is_user_visible($pages[2]->cmid, $student->id, false));

    }

    /**

     * Tests the convert_legacy_fields function used in restore.

     */

    public function test_convert_legacy_fields(): void {

        // Check with no availability conditions first.

        $rec = (object)array('availablefrom' => 0, 'availableuntil' => 0,

                'groupingid' => 7, 'showavailability' => 1);

        $this->assertNull(info::convert_legacy_fields($rec, false));

        // Check same list for a section.

        $this->assertEquals(

                '{"op":"&","showc":[false],"c":[{"type":"grouping","id":7}]}',

                info::convert_legacy_fields($rec, true));

        // Check groupmembersonly with grouping.

        $rec->groupmembersonly = 1;

        $this->assertEquals(

                '{"op":"&","showc":[false],"c":[{"type":"grouping","id":7}]}',

                info::convert_legacy_fields($rec, false));

        // Check groupmembersonly without grouping.

        $rec->groupingid = 0;

        $this->assertEquals(

                '{"op":"&","showc":[false],"c":[{"type":"group"}]}',

                info::convert_legacy_fields($rec, false));

        // Check start date.

        $rec->groupmembersonly = 0;

        $rec->availablefrom = 123;

        $this->assertEquals(

                '{"op":"&","showc":[true],"c":[{"type":"date","d":">=","t":123}]}',

                info::convert_legacy_fields($rec, false));

        // Start date with show = false.

        $rec->showavailability = 0;

        $this->assertEquals(

                '{"op":"&","showc":[false],"c":[{"type":"date","d":">=","t":123}]}',

                info::convert_legacy_fields($rec, false));

        // End date.

        $rec->showavailability = 1;

        $rec->availablefrom = 0;

        $rec->availableuntil = 456;

        $this->assertEquals(

                '{"op":"&","showc":[false],"c":[{"type":"date","d":"<","t":456}]}',

                info::convert_legacy_fields($rec, false));

        // All together now.

        $rec->groupingid = 7;

        $rec->groupmembersonly = 1;

        $rec->availablefrom = 123;

        $this->assertEquals(

                '{"op":"&","showc":[false,true,false],"c":[' .

                '{"type":"grouping","id":7},' .

                '{"type":"date","d":">=","t":123},' .

                '{"type":"date","d":"<","t":456}' .

                ']}',

                info::convert_legacy_fields($rec, false));

        $this->assertEquals(

                '{"op":"&","showc":[false,true,false],"c":[' .

                '{"type":"grouping","id":7},' .

                '{"type":"date","d":">=","t":123},' .

                '{"type":"date","d":"<","t":456}' .

                ']}',

                info::convert_legacy_fields($rec, false, true));

    }

    /**

     * Tests the add_legacy_availability_condition function used in restore.

     */

    public function test_add_legacy_availability_condition(): void {

        // Completion condition tests.

        $rec = (object)array('sourcecmid' => 7, 'requiredcompletion' => 1);

        // No previous availability, show = true.

        $this->assertEquals(

                '{"op":"&","showc":[true],"c":[{"type":"completion","cm":7,"e":1}]}',

                info::add_legacy_availability_condition(null, $rec, true));

        // No previous availability, show = false.

        $this->assertEquals(

                '{"op":"&","showc":[false],"c":[{"type":"completion","cm":7,"e":1}]}',

                info::add_legacy_availability_condition(null, $rec, false));

        // Existing availability.

        $before = '{"op":"&","showc":[true],"c":[{"type":"date","d":">=","t":70}]}';

        $this->assertEquals(

                '{"op":"&","showc":[true,true],"c":['.

                '{"type":"date","d":">=","t":70},' .

                '{"type":"completion","cm":7,"e":1}' .

                ']}',

                info::add_legacy_availability_condition($before, $rec, true));

        // Grade condition tests.

        $rec = (object)array('gradeitemid' => 3, 'grademin' => 7, 'grademax' => null);

        $this->assertEquals(

                '{"op":"&","showc":[true],"c":[{"type":"grade","id":3,"min":7.00000}]}',

                info::add_legacy_availability_condition(null, $rec, true));

        $rec->grademax = 8;

        $this->assertEquals(

                '{"op":"&","showc":[true],"c":[{"type":"grade","id":3,"min":7.00000,"max":8.00000}]}',

                info::add_legacy_availability_condition(null, $rec, true));

        unset($rec->grademax);

        unset($rec->grademin);

        $this->assertEquals(

                '{"op":"&","showc":[true],"c":[{"type":"grade","id":3}]}',

                info::add_legacy_availability_condition(null, $rec, true));

        // Note: There is no need to test the grade condition with show

        // true/false and existing availability, because this uses the same

        // function.

    }

    /**

     * Tests the add_legacy_availability_field_condition function used in restore.

     */

    public function test_add_legacy_availability_field_condition(): void {

        // User field, normal operator.

        $rec = (object)array('userfield' => 'email', 'shortname' => null,

                'operator' => 'contains', 'value' => '@');

        $this->assertEquals(

                '{"op":"&","showc":[true],"c":[' .

                '{"type":"profile","op":"contains","sf":"email","v":"@"}]}',

                info::add_legacy_availability_field_condition(null, $rec, true));

        // User field, non-value operator.

        $rec = (object)array('userfield' => 'email', 'shortname' => null,

                'operator' => 'isempty', 'value' => '');

        $this->assertEquals(

                '{"op":"&","showc":[true],"c":[' .

                '{"type":"profile","op":"isempty","sf":"email"}]}',

                info::add_legacy_availability_field_condition(null, $rec, true));

        // Custom field.

        $rec = (object)array('userfield' => null, 'shortname' => 'frogtype',

                'operator' => 'isempty', 'value' => '');

        $this->assertEquals(

                '{"op":"&","showc":[true],"c":[' .

                '{"type":"profile","op":"isempty","cf":"frogtype"}]}',

                info::add_legacy_availability_field_condition(null, $rec, true));

    }

    /**

     * Tests the filter_user_list() and get_user_list_sql() functions.

     */

    public function test_filter_user_list(): void {

        global $CFG, $DB;

        require_once($CFG->dirroot . '/course/lib.php');

        $this->resetAfterTest();

        $CFG->enableavailability = true;

        // Create a course with 2 sections and 2 pages and 3 users.

        // Availability is set up initially on the 'page/section 2' items.

        $generator = $this->getDataGenerator();

        $course = $generator->create_course(

                array('numsections' => 2), array('createsections' => true));

        $u1 = $generator->create_user();

        $u2 = $generator->create_user();

        $u3 = $generator->create_user();

        $studentroleid = $DB->get_field('role', 'id', array('shortname' => 'student'), MUST_EXIST);

        $allusers = array($u1->id => $u1, $u2->id => $u2, $u3->id => $u3);

        $generator->enrol_user($u1->id, $course->id, $studentroleid);

        $generator->enrol_user($u2->id, $course->id, $studentroleid);

        $generator->enrol_user($u3->id, $course->id, $studentroleid);

        // Page 2 allows access to users 2 and 3, while section 2 allows access

        // to users 1 and 2.

        $pagegen = $generator->get_plugin_generator('mod_page');

        $page = $pagegen->create_instance(array('course' => $course));

        $page2 = $pagegen->create_instance(array('course' => $course,

                'availability' => '{"op":"|","show":true,"c":[{"type":"mock","filter":[' .

                $u2->id . ',' . $u3->id . ']}]}'));

        $modinfo = get_fast_modinfo($course);

        $section = $modinfo->get_section_info(1);

        $section2 = $modinfo->get_section_info(2);

        $DB->set_field('course_sections', 'availability',

                '{"op":"|","show":true,"c":[{"type":"mock","filter":[' . $u1->id . ',' . $u2->id .']}]}',

                array('id' => $section2->id));

        moveto_module($modinfo->get_cm($page2->cmid), $section2);

        // With no restrictions, returns full list.

        $info = new info_module($modinfo->get_cm($page->cmid));

        $this->assertEquals(array($u1->id, $u2->id, $u3->id),

                array_keys($info->filter_user_list($allusers)));

        $this->assertEquals(array('', array()), $info->get_user_list_sql(true));

        // Set an availability restriction in database for section 1.

        // For the section we set it so it doesn't support filters; for the

        // module we have a filter.

        $DB->set_field('course_sections', 'availability',

                '{"op":"|","show":true,"c":[{"type":"mock","a":false}]}',

                array('id' => $section->id));

        $DB->set_field('course_modules', 'availability',

                '{"op":"|","show":true,"c":[{"type":"mock","filter":[' . $u3->id .']}]}',

                array('id' => $page->cmid));

        rebuild_course_cache($course->id, true);

        $modinfo = get_fast_modinfo($course);

        // Now it should work (for the module).

        $info = new info_module($modinfo->get_cm($page->cmid));

        $expected = array($u3->id);

        $this->assertEquals($expected,

                array_keys($info->filter_user_list($allusers)));

        list ($sql, $params) = $info->get_user_list_sql();

        $result = $DB->get_fieldset_sql($sql, $params);

        sort($result);

        $this->assertEquals($expected, $result);

        $info = new info_section($modinfo->get_section_info(1));

        $this->assertEquals(array($u1->id, $u2->id, $u3->id),

                array_keys($info->filter_user_list($allusers)));

        $this->assertEquals(array('', array()), $info->get_user_list_sql(true));

        // With availability disabled, module returns full list too.

        $CFG->enableavailability = false;

        $info = new info_module($modinfo->get_cm($page->cmid));

        $this->assertEquals(array($u1->id, $u2->id, $u3->id),

                array_keys($info->filter_user_list($allusers)));

        $this->assertEquals(array('', array()), $info->get_user_list_sql(true));

        // Check the other section...

        $CFG->enableavailability = true;

        $info = new info_section($modinfo->get_section_info(2));

        $expected = array($u1->id, $u2->id);

        $this->assertEquals($expected, array_keys($info->filter_user_list($allusers)));

        list ($sql, $params) = $info->get_user_list_sql(true);

        $result = $DB->get_fieldset_sql($sql, $params);

        sort($result);

        $this->assertEquals($expected, $result);

        // And the module in that section - which has combined the section and

        // module restrictions.

        $info = new info_module($modinfo->get_cm($page2->cmid));

        $expected = array($u2->id);

        $this->assertEquals($expected, array_keys($info->filter_user_list($allusers)));

        list ($sql, $params) = $info->get_user_list_sql(true);

        $result = $DB->get_fieldset_sql($sql, $params);

        sort($result);

        $this->assertEquals($expected, $result);

        // If the students have viewhiddenactivities, they get past the module

        // restriction.

        role_change_permission($studentroleid, \context_module::instance($page2->cmid),

                'moodle/course:ignoreavailabilityrestrictions', CAP_ALLOW);

        $expected = array($u1->id, $u2->id);

        $this->assertEquals($expected, array_keys($info->filter_user_list($allusers)));

        list ($sql, $params) = $info->get_user_list_sql(true);

        $result = $DB->get_fieldset_sql($sql, $params);

        sort($result);

        $this->assertEquals($expected, $result);

        // If they have viewhiddensections, they also get past the section

        // restriction.

        role_change_permission($studentroleid, \context_course::instance($course->id),

                'moodle/course:ignoreavailabilityrestrictions', CAP_ALLOW);

        $expected = array($u1->id, $u2->id, $u3->id);

        $this->assertEquals($expected, array_keys($info->filter_user_list($allusers)));

        list ($sql, $params) = $info->get_user_list_sql(true);

        $result = $DB->get_fieldset_sql($sql, $params);

        sort($result);

        $this->assertEquals($expected, $result);

    }

    /**

     * Tests the info_module class when involved in a recursive call to $cm->name.

     */

    public function test_info_recursive_name_call(): void {

        global $DB;

        $this->resetAfterTest();

        // Create a course and page.

        $generator = $this->getDataGenerator();

        $course = $generator->create_course();

        $page1 = $generator->create_module('page', ['course' => $course->id, 'name' => 'Page1']);

        // Set invalid availability.

        $DB->set_field('course_modules', 'availability', 'not valid', ['id' => $page1->cmid]);

        // Get the cm_info object.

        $this->setAdminUser();

        $modinfo = get_fast_modinfo($course);

        $cm1 = $modinfo->get_cm($page1->cmid);

        // At this point we will generate dynamic data for $cm1, which will cause the debugging

        // call below.

        $this->assertEquals('Page1', $cm1->name);

        $this->assertDebuggingCalled('Error processing availability data for ' .

                '‘Page1’: Invalid availability text');

    }

    /**

     * Test for the is_available_for_all() method of the info base class.

     * @covers \core_availability\info_module::is_available_for_all

     */

    public function test_is_available_for_all(): void {

        global $CFG, $DB;

        $this->resetAfterTest();

        $CFG->enableavailability = 0;

        $generator = $this->getDataGenerator();

        $course = $generator->create_course();

        $page = $generator->get_plugin_generator('mod_page')->create_instance(['course' => $course]);

        // Set an availability restriction and reset the modinfo cache.

        // The enableavailability setting is disabled so this does not take effect yet.

        $notavailable = '{"op":"|","show":true,"c":[{"type":"mock","a":false}]}';

        $DB->set_field('course_modules', 'availability', $notavailable, ['id' => $page->cmid]);

        get_fast_modinfo($course, 0, true);

        // Availability is disabled, so we expect this module to be available for everyone.

        $modinfo = get_fast_modinfo($course);

        $info = new info_module($modinfo->get_cm($page->cmid));

        $this->assertTrue($info->is_available_for_all());

        // Now, enable availability restrictions, and check again.

        // This time, we expect it to return false, because of the access restriction.

        $CFG->enableavailability = 1;

        $this->assertFalse($info->is_available_for_all());

    }

    /**

     * Test update_display_mode function.

     *

     * @covers \core\plugininfo\availability::update_display_mode

     * @dataProvider update_display_mode_provider

     *

     * @param string $plugin The plugin name.

     * @param string $expected The expected data.

     */

    public function test_update_display_mode(string $plugin, string $expected): void {

        global $DB;

        $this->resetAfterTest();

        // Get default value for default display mode.

        $availabilityvalue = $DB->get_field('config_plugins', 'value',

            ['name' => 'defaultdisplaymode', 'plugin' => "availability_$plugin"]);

        $updatedisplaymode = \core\plugininfo\availability::update_display_mode($plugin, true);

        // The default value is not inserted into the table.

        // Or the display is updated but the display mode is the same value as the default.

        $this->assertFalse($availabilityvalue);

        $this->assertFalse($updatedisplaymode);

        // Update display mode for plugins.

        $updatedisplaymode = \core\plugininfo\availability::update_display_mode($plugin, false);

        // The function should return true because the display mode value has changed.

        $this->assertTrue($updatedisplaymode);

        // Get the updated value for the default display mode.

        $availabilityvalue = $DB->get_field('config_plugins', 'value',

            ['name' => 'defaultdisplaymode', 'plugin' => "availability_$plugin"]);

        $this->assertEquals($expected, $availabilityvalue);

    }

    /**

     * Data provider for test_update_display_mode().

     *

     * @return array

     */

    public static function update_display_mode_provider(): array {

        return [

            'Update display mode for completion' => [

                'completion',

                '1',

            ],

            'Update display mode for grade' => [

                'grade',

                '1',

            ],

            'Update display mode for group' => [

                'group',

                '1',

            ],

        ];

    }

}