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/>.

/**

 * Unit tests for (some of) mod/assign/lib.php.

 *

 * @package    mod_assign

 * @category   phpunit

 * @copyright  1999 onwards Martin Dougiamas  {@link http://moodle.com}

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

 */

namespace mod_assign;

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

global $CFG;

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

require_once($CFG->dirroot . '/mod/assign/locallib.php');

require_once($CFG->dirroot . '/mod/assign/tests/generator.php');

use core_calendar\local\api as calendar_local_api;

use core_calendar\local\event\container as calendar_event_container;

use mod_assign_test_generator;

/**

 * Unit tests for (some of) mod/assign/lib.php.

 *

 * @copyright  1999 onwards Martin Dougiamas  {@link http://moodle.com}

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

 */

class lib_test extends \advanced_testcase {

    // Use the generator helper.

    use mod_assign_test_generator;

    /**

     * Test that assign_print_recent_activity shows ungraded submitted assignments.

     */

    public function test_print_recent_activity(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $assign = $this->create_instance($course);

        $this->submit_for_grading($student, $assign);

        $this->setUser($teacher);

        $this->expectOutputRegex('/submitted:/');

        assign_print_recent_activity($course, true, time() - 3600);

    }

    /**

     * Test that assign_print_recent_activity does not display any warnings when a custom fullname has been configured.

     */

    public function test_print_recent_activity_fullname(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $assign = $this->create_instance($course);

        $this->submit_for_grading($student, $assign);

        $this->setUser($teacher);

        $this->expectOutputRegex('/submitted:/');

        set_config('fullnamedisplay', 'firstname, lastnamephonetic');

        assign_print_recent_activity($course, false, time() - 3600);

    }

    /**

     * Test that assign_print_recent_activity shows the blind marking ID.

     */

    public function test_print_recent_activity_fullname_blind_marking(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $assign = $this->create_instance($course, [

                'blindmarking' => 1,

            ]);

        $this->add_submission($student, $assign);

        $this->submit_for_grading($student, $assign);

        $this->setUser($teacher);

        $uniqueid = $assign->get_uniqueid_for_user($student->id);

        $expectedstr = preg_quote(get_string('participant', 'mod_assign'), '/') . '.*' . $uniqueid;

        $this->expectOutputRegex("/{$expectedstr}/");

        assign_print_recent_activity($course, false, time() - 3600);

    }

    /**

     * Test that assign_get_recent_mod_activity fetches the assignment correctly.

     */

    public function test_assign_get_recent_mod_activity(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $assign = $this->create_instance($course);

        $this->add_submission($student, $assign);

        $this->submit_for_grading($student, $assign);

        $index = 1;

        $activities = [

            $index => (object) [

                'type' => 'assign',

                'cmid' => $assign->get_course_module()->id,

            ],

        ];

        $this->setUser($teacher);

        assign_get_recent_mod_activity($activities, $index, time() - HOURSECS, $course->id, $assign->get_course_module()->id);

        $activity = $activities[1];

        $this->assertEquals("assign", $activity->type);

        $this->assertEquals($student->id, $activity->user->id);

    }

    /**

     * Ensure that assign_user_complete displays information about drafts.

     */

    public function test_assign_user_complete(): void {

        global $PAGE, $DB;

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $assign = $this->create_instance($course, ['submissiondrafts' => 1]);

        $this->add_submission($student, $assign);

        $PAGE->set_url(new \moodle_url('/mod/assign/view.php', array('id' => $assign->get_course_module()->id)));

        $submission = $assign->get_user_submission($student->id, true);

        $submission->status = ASSIGN_SUBMISSION_STATUS_DRAFT;

        $DB->update_record('assign_submission', $submission);

        $this->expectOutputRegex('/Draft/');

        assign_user_complete($course, $student, $assign->get_course_module(), $assign->get_instance());

    }

    /**

     * Ensure that assign_user_outline fetches updated grades.

     */

    public function test_assign_user_outline(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $assign = $this->create_instance($course);

        $this->add_submission($student, $assign);

        $this->submit_for_grading($student, $assign);

        $this->mark_submission($teacher, $assign, $student, 50.0);

        $this->setUser($teacher);

        $data = $assign->get_user_grade($student->id, true);

        $data->grade = '50.5';

        $assign->update_grade($data);

        $result = assign_user_outline($course, $student, $assign->get_course_module(), $assign->get_instance());

        $this->assertMatchesRegularExpression('/50.5/', $result->info);

    }

    /**

     * Tests for mod_assign_refresh_events.

     */

    public function test_assign_refresh_events(): void {

        global $DB;

        $this->resetAfterTest();

        $duedate = time();

        $newduedate = $duedate + DAYSECS;

        $this->setAdminUser();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $assign = $this->create_instance($course, [

                'duedate' => $duedate,

            ]);

        $instance = $assign->get_instance();

        $eventparams = [

            'modulename' => 'assign',

            'instance' => $instance->id,

            'eventtype' => ASSIGN_EVENT_TYPE_DUE,

            'groupid' => 0

        ];

        // Make sure the calendar event for assignment 1 matches the initial due date.

        $eventtime = $DB->get_field('event', 'timestart', $eventparams, MUST_EXIST);

        $this->assertEquals($eventtime, $duedate);

        // Manually update assignment 1's due date.

        $DB->update_record('assign', (object) [

            'id' => $instance->id,

            'duedate' => $newduedate,

            'course' => $course->id

        ]);

        // Then refresh the assignment events of assignment 1's course.

        $this->assertTrue(assign_refresh_events($course->id));

        // Confirm that the assignment 1's due date event now has the new due date after refresh.

        $eventtime = $DB->get_field('event', 'timestart', $eventparams, MUST_EXIST);

        $this->assertEquals($eventtime, $newduedate);

        // Create a second course and assignment.

        $othercourse = $this->getDataGenerator()->create_course();;

        $otherassign = $this->create_instance($othercourse, [

            'duedate' => $duedate,

        ]);

        $otherinstance = $otherassign->get_instance();

        // Manually update assignment 1 and 2's due dates.

        $newduedate += DAYSECS;

        $DB->update_record('assign', (object)[

            'id' => $instance->id,

            'duedate' => $newduedate,

            'course' => $course->id

        ]);

        $DB->update_record('assign', (object)[

            'id' => $otherinstance->id,

            'duedate' => $newduedate,

            'course' => $othercourse->id

        ]);

        // Refresh events of all courses and check the calendar events matches the new date.

        $this->assertTrue(assign_refresh_events());

        // Check the due date calendar event for assignment 1.

        $eventtime = $DB->get_field('event', 'timestart', $eventparams, MUST_EXIST);

        $this->assertEquals($eventtime, $newduedate);

        // Check the due date calendar event for assignment 2.

        $eventparams['instance'] = $otherinstance->id;

        $eventtime = $DB->get_field('event', 'timestart', $eventparams, MUST_EXIST);

        $this->assertEquals($eventtime, $newduedate);

        // In case the course ID is passed as a numeric string.

        $this->assertTrue(assign_refresh_events('' . $course->id));

        // Non-existing course ID.

        $this->assertFalse(assign_refresh_events(-1));

        // Invalid course ID.

        $this->assertFalse(assign_refresh_events('aaa'));

    }

    public function test_assign_core_calendar_is_event_visible_duedate_event_as_teacher(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $assign = $this->create_instance($course);

        $this->setAdminUser();

        // Create a calendar event.

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_DUE);

        // The teacher should see the due date event.

        $this->setUser($teacher);

        $this->assertTrue(mod_assign_core_calendar_is_event_visible($event));

    }

    public function test_assign_core_calendar_is_event_visible_duedate_event_for_teacher(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $assign = $this->create_instance($course);

        $this->setAdminUser();

        // Create a calendar event.

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_DUE);

        // Now, log out.

        $this->setUser();

        // The teacher should see the due date event.

        $this->assertTrue(mod_assign_core_calendar_is_event_visible($event, $teacher->id));

    }

    public function test_assign_core_calendar_is_event_visible_duedate_event_as_student(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $assign = $this->create_instance($course, ['assignsubmission_onlinetext_enabled' => 1]);

        $this->setAdminUser();

        // Create a calendar event.

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_DUE);

        // The student should care about the due date event.

        $this->setUser($student);

        $this->assertTrue(mod_assign_core_calendar_is_event_visible($event));

    }

    public function test_assign_core_calendar_is_event_visible_duedate_event_for_student(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $assign = $this->create_instance($course, ['assignsubmission_onlinetext_enabled' => 1]);

        $this->setAdminUser();

        // Create a calendar event.

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_DUE);

        // Now, log out.

        $this->setUser();

        // The student should care about the due date event.

        $this->assertTrue(mod_assign_core_calendar_is_event_visible($event, $student->id));

    }

    public function test_assign_core_calendar_is_event_visible_gradingduedate_event_as_teacher(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $assign = $this->create_instance($course);

        // Create a calendar event.

        $this->setAdminUser();

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_GRADINGDUE);

        // The teacher should see the due date event.

        $this->setUser($teacher);

        $this->assertTrue(mod_assign_core_calendar_is_event_visible($event));

    }

    public function test_assign_core_calendar_is_event_visible_gradingduedate_event_for_teacher(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $assign = $this->create_instance($course);

        // Create a calendar event.

        $this->setAdminUser();

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_GRADINGDUE);

        // Now, log out.

        $this->setUser();

        // The teacher should see the due date event.

        $this->assertTrue(mod_assign_core_calendar_is_event_visible($event, $teacher->id));

    }

    public function test_assign_core_calendar_is_event_visible_gradingduedate_event_as_student(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $assign = $this->create_instance($course);

        // Create a calendar event.

        $this->setAdminUser();

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_GRADINGDUE);

        // The student should not see the due date event.

        $this->setUser($student);

        $this->assertFalse(mod_assign_core_calendar_is_event_visible($event));

    }

    public function test_assign_core_calendar_is_event_visible_gradingduedate_event_for_student(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $assign = $this->create_instance($course);

        // Create a calendar event.

        $this->setAdminUser();

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_GRADINGDUE);

        // Now, log out.

        $this->setUser();

        // The student should not see the due date event.

        $this->assertFalse(mod_assign_core_calendar_is_event_visible($event, $student->id));

    }

    public function test_assign_core_calendar_provide_event_action_duedate_as_teacher(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $assign = $this->create_instance($course);

        // Create a calendar event.

        $this->setAdminUser();

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_DUE);

        // The teacher should see the event.

        $this->setUser($teacher);

        $factory = new \core_calendar\action_factory();

        $actionevent = mod_assign_core_calendar_provide_event_action($event, $factory);

        // The teacher should not have an action for a due date event.

        $this->assertNull($actionevent);

    }

    public function test_assign_core_calendar_provide_event_action_duedate_for_teacher(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $assign = $this->create_instance($course);

        // Create a calendar event.

        $this->setAdminUser();

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_DUE);

        // Now, log out.

        $this->setUser();

        // Decorate action event for a teacher.

        $factory = new \core_calendar\action_factory();

        $actionevent = mod_assign_core_calendar_provide_event_action($event, $factory, $teacher->id);

        // The teacher should not have an action for a due date event.

        $this->assertNull($actionevent);

    }

    public function test_assign_core_calendar_provide_event_action_duedate_as_student(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $assign = $this->create_instance($course, ['assignsubmission_onlinetext_enabled' => 1]);

        // Create a calendar event.

        $this->setAdminUser();

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_DUE);

        // The student should see the event.

        $this->setUser($student);

        $factory = new \core_calendar\action_factory();

        $actionevent = mod_assign_core_calendar_provide_event_action($event, $factory);

        // Confirm the event was decorated.

        $this->assertInstanceOf('\core_calendar\local\event\value_objects\action', $actionevent);

        $this->assertEquals(get_string('addsubmission', 'assign'), $actionevent->get_name());

        $this->assertInstanceOf('moodle_url', $actionevent->get_url());

        $this->assertEquals(1, $actionevent->get_item_count());

        $this->assertTrue($actionevent->is_actionable());

    }

    public function test_assign_core_calendar_provide_event_action_duedate_for_student(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $assign = $this->create_instance($course, ['assignsubmission_onlinetext_enabled' => 1]);

        // Create a calendar event.

        $this->setAdminUser();

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_DUE);

        // Now, log out.

        $this->setUser();

        // Decorate action event for a student.

        $factory = new \core_calendar\action_factory();

        $actionevent = mod_assign_core_calendar_provide_event_action($event, $factory, $student->id);

        // Confirm the event was decorated.

        $this->assertInstanceOf('\core_calendar\local\event\value_objects\action', $actionevent);

        $this->assertEquals(get_string('addsubmission', 'assign'), $actionevent->get_name());

        $this->assertInstanceOf('moodle_url', $actionevent->get_url());

        $this->assertEquals(1, $actionevent->get_item_count());

        $this->assertTrue($actionevent->is_actionable());

    }

    /**

     * Test group submissions.

     * @covers \assign::mod_assign_core_calendar_provide_event_action

     */

    public function test_assign_core_calendar_provide_event_action_duedate_for_group_assignment(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $student1 = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $student2 = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $group = $this->getDataGenerator()->create_group([

            'courseid' => $course->id,

        ]);

        groups_add_member($group->id, $student1->id);

        groups_add_member($group->id, $student2->id);

        $assign = $this->create_instance($course, [

            'assignsubmission_onlinetext_enabled' => 1,

            'requiresubmissionstatement' => 1,

            'teamsubmission' => 1,

            'completion' => 0,

            'completionsubmit' => 1,

        ]);

        // Create a calendar event.

        $this->setAdminUser();

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_DUE);

        $this->setUser();

        $factory = new \core_calendar\action_factory();

        $actionevent1 = mod_assign_core_calendar_provide_event_action($event, $factory, $student1->id);

        $actionevent2 = mod_assign_core_calendar_provide_event_action($event, $factory, $student2->id);

        // Confirm the events were decorated.

        $this->assertInstanceOf('\core_calendar\local\event\value_objects\action', $actionevent1);

        $this->assertEquals(get_string('addsubmission', 'assign'), $actionevent1->get_name());

        $this->assertInstanceOf('moodle_url', $actionevent1->get_url());

        $this->assertEquals(1, $actionevent1->get_item_count());

        $this->assertTrue($actionevent1->is_actionable());

        $this->assertInstanceOf('\core_calendar\local\event\value_objects\action', $actionevent2);

        $this->assertEquals(get_string('addsubmission', 'assign'), $actionevent2->get_name());

        $this->assertInstanceOf('moodle_url', $actionevent2->get_url());

        $this->assertEquals(1, $actionevent2->get_item_count());

        $this->assertTrue($actionevent2->is_actionable());

        // Submit as the student.

        $this->add_submission($student1, $assign);

        $this->submit_for_grading($student1, $assign, ['submissionstatement' => 'Hello, world!']);

        // Create a new calendar event.

        $this->setAdminUser();

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_DUE);

        $this->setUser();

        // Confirm there were no events to action.

        $actionevent1 = mod_assign_core_calendar_provide_event_action($event, $factory, $student1->id);

        $this->assertNull($actionevent1);

        $actionevent2 = mod_assign_core_calendar_provide_event_action($event, $factory, $student2->id);

        $this->assertNull($actionevent2);

    }

    public function test_assign_core_calendar_provide_event_action_gradingduedate_as_teacher(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $assign = $this->create_instance($course);

        // Create a calendar event.

        $this->setAdminUser();

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_GRADINGDUE);

        $this->setUser($teacher);

        $factory = new \core_calendar\action_factory();

        $actionevent = mod_assign_core_calendar_provide_event_action($event, $factory);

        // Confirm the event was decorated.

        $this->assertInstanceOf('\core_calendar\local\event\value_objects\action', $actionevent);

        $this->assertEquals(get_string('gradenoun'), $actionevent->get_name());

        $this->assertInstanceOf('moodle_url', $actionevent->get_url());

        $this->assertEquals(0, $actionevent->get_item_count());

        $this->assertTrue($actionevent->is_actionable());

    }

    public function test_assign_core_calendar_provide_event_action_gradingduedate_for_teacher(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $assign = $this->create_instance($course);

        // Create a calendar event.

        $this->setAdminUser();

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_GRADINGDUE);

        // Now, log out.

        $this->setUser();

        // Decorate action event for a teacher.

        $factory = new \core_calendar\action_factory();

        $actionevent = mod_assign_core_calendar_provide_event_action($event, $factory, $teacher->id);

        // Confirm the event was decorated.

        $this->assertInstanceOf('\core_calendar\local\event\value_objects\action', $actionevent);

        $this->assertEquals(get_string('gradenoun'), $actionevent->get_name());

        $this->assertInstanceOf('moodle_url', $actionevent->get_url());

        $this->assertEquals(0, $actionevent->get_item_count());

        $this->assertTrue($actionevent->is_actionable());

    }

    public function test_assign_core_calendar_provide_event_action_gradingduedate_as_student(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $assign = $this->create_instance($course);

        // Create a calendar event.

        $this->setAdminUser();

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_GRADINGDUE);

        $this->setUser($student);

        $factory = new \core_calendar\action_factory();

        $actionevent = mod_assign_core_calendar_provide_event_action($event, $factory);

        // Confirm the event was decorated.

        $this->assertInstanceOf('\core_calendar\local\event\value_objects\action', $actionevent);

        $this->assertEquals(get_string('gradenoun'), $actionevent->get_name());

        $this->assertInstanceOf('moodle_url', $actionevent->get_url());

        $this->assertEquals(0, $actionevent->get_item_count());

        $this->assertFalse($actionevent->is_actionable());

    }

    public function test_assign_core_calendar_provide_event_action_gradingduedate_for_student(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $assign = $this->create_instance($course);

        // Create a calendar event.

        $this->setAdminUser();

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_GRADINGDUE);

        // Now, log out.

        $this->setUser();

        // Decorate action event for a student.

        $factory = new \core_calendar\action_factory();

        $actionevent = mod_assign_core_calendar_provide_event_action($event, $factory, $student->id);

        // Confirm the event was decorated.

        $this->assertInstanceOf('\core_calendar\local\event\value_objects\action', $actionevent);

        $this->assertEquals(get_string('gradenoun'), $actionevent->get_name());

        $this->assertInstanceOf('moodle_url', $actionevent->get_url());

        $this->assertEquals(0, $actionevent->get_item_count());

        $this->assertFalse($actionevent->is_actionable());

    }

    public function test_assign_core_calendar_provide_event_action_duedate_as_student_submitted(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $assign = $this->create_instance($course, ['assignsubmission_onlinetext_enabled' => 1]);

        $this->setAdminUser();

        // Create a calendar event.

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_DUE);

        // Create an action factory.

        $factory = new \core_calendar\action_factory();

        // Submit as the student.

        $this->add_submission($student, $assign);

        $this->submit_for_grading($student, $assign);

        // Confirm there was no event to action.

        $factory = new \core_calendar\action_factory();

        $actionevent = mod_assign_core_calendar_provide_event_action($event, $factory);

        $this->assertNull($actionevent);

    }

    public function test_assign_core_calendar_provide_event_action_duedate_for_student_submitted(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $assign = $this->create_instance($course, ['assignsubmission_onlinetext_enabled' => 1]);

        $this->setAdminUser();

        // Create a calendar event.

        $event = $this->create_action_event($course, $assign, ASSIGN_EVENT_TYPE_DUE);

        // Create an action factory.

        $factory = new \core_calendar\action_factory();

        // Submit as the student.

        $this->add_submission($student, $assign);

        $this->submit_for_grading($student, $assign);

        // Now, log out.

        $this->setUser();

        // Confirm there was no event to action.

        $factory = new \core_calendar\action_factory();

        $actionevent = mod_assign_core_calendar_provide_event_action($event, $factory, $student->id);

        $this->assertNull($actionevent);

    }

    public function test_assign_core_calendar_provide_event_action_already_completed(): void {

        $this->resetAfterTest();

        set_config('enablecompletion', 1);

        $this->setAdminUser();

        // Create the activity.

        $course = $this->getDataGenerator()->create_course(array('enablecompletion' => 1));

        $assign = $this->create_instance($course,

         ['completion' => 2, 'completionview' => 1, 'completionexpected' => time() + DAYSECS]);

        // Get some additional data.

        $cm = get_coursemodule_from_instance('assign', $assign->get_instance()->id);

        // Create a calendar event.

        $event = $this->create_action_event($course, $assign,

            \core_completion\api::COMPLETION_EVENT_TYPE_DATE_COMPLETION_EXPECTED);

        // Mark the activity as completed.

        $completion = new \completion_info($course);

        $completion->set_module_viewed($cm);

        // Create an action factory.

        $factory = new \core_calendar\action_factory();

        // Decorate action event.

        $actionevent = mod_assign_core_calendar_provide_event_action($event, $factory);

        // Ensure result was null.

        $this->assertNull($actionevent);

    }

    public function test_assign_core_calendar_provide_event_action_already_completed_for_user(): void {

        $this->resetAfterTest();

        set_config('enablecompletion', 1);

        $this->setAdminUser();

        // Create the activity.

        $course = $this->getDataGenerator()->create_course(array('enablecompletion' => 1));

        $assign = $this->create_instance($course,

         ['completion' => 2, 'completionview' => 1, 'completionexpected' => time() + DAYSECS]);

        // Enrol a student in the course.

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        // Get some additional data.

        $cm = get_coursemodule_from_instance('assign', $assign->get_instance()->id);

        // Create a calendar event.

        $event = $this->create_action_event($course, $assign,

            \core_completion\api::COMPLETION_EVENT_TYPE_DATE_COMPLETION_EXPECTED);

        // Mark the activity as completed for the student.

        $completion = new \completion_info($course);

        $completion->set_module_viewed($cm, $student->id);

        // Create an action factory.

        $factory = new \core_calendar\action_factory();

        // Decorate action event for the student.

        $actionevent = mod_assign_core_calendar_provide_event_action($event, $factory, $student->id);

        // Ensure result was null.

        $this->assertNull($actionevent);

    }

    /**

     * Creates an action event.

     *

     * @param \stdClass $course The course the assignment is in

     * @param assign $assign The assignment to create an event for

     * @param string $eventtype The event type. eg. ASSIGN_EVENT_TYPE_DUE.

     * @return bool|calendar_event

     */

    private function create_action_event($course, $assign, $eventtype) {

        $event = new \stdClass();

        $event->name = 'Calendar event';

        $event->modulename  = 'assign';

        $event->courseid = $course->id;

        $event->instance = $assign->get_instance()->id;

        $event->type = CALENDAR_EVENT_TYPE_ACTION;

        $event->eventtype = $eventtype;

        $event->timestart = time();

        return \calendar_event::create($event);

    }

    /**

     * Test the callback responsible for returning the completion rule descriptions.

     * This function should work given either an instance of the module (cm_info), such as when checking the active rules,

     * or if passed a stdClass of similar structure, such as when checking the the default completion settings for a mod type.

     */

    public function test_mod_assign_completion_get_active_rule_descriptions(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course(['enablecompletion' => 1]);

        $this->setAdminUser();

        // Two activities, both with automatic completion. One has the 'completionsubmit' rule, one doesn't.

        $cm1 = $this->create_instance($course, ['completion' => '2', 'completionsubmit' => '1'])->get_course_module();

        $cm2 = $this->create_instance($course, ['completion' => '2', 'completionsubmit' => '0'])->get_course_module();

        // Data for the stdClass input type.

        // This type of input would occur when checking the default completion rules for an activity type, where we don't have

        // any access to cm_info, rather the input is a stdClass containing completion and customdata attributes, just like cm_info.

        $moddefaults = (object) [

            'customdata' => [

                'customcompletionrules' => [

                    'completionsubmit' => '1',

                ],

            ],

            'completion' => 2,

        ];

        $activeruledescriptions = [get_string('completionsubmit', 'assign')];

        $this->assertEquals(mod_assign_get_completion_active_rule_descriptions($cm1), $activeruledescriptions);

        $this->assertEquals(mod_assign_get_completion_active_rule_descriptions($cm2), []);

        $this->assertEquals(mod_assign_get_completion_active_rule_descriptions($moddefaults), $activeruledescriptions);

        $this->assertEquals(mod_assign_get_completion_active_rule_descriptions(new \stdClass()), []);

    }

    /**

     * Test that if some grades are not set, they are left alone and not rescaled

     */

    public function test_assign_rescale_activity_grades_some_unset(): void {

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $teacher = $this->getDataGenerator()->create_and_enrol($course, 'teacher');

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $otherstudent = $this->getDataGenerator()->create_and_enrol($course, 'student');

        // As a teacher.

        $this->setUser($teacher);

        $assign = $this->create_instance($course);

        // Grade the student.

        $data = ['grade' => 50];

        $assign->testable_apply_grade_to_user((object)$data, $student->id, 0);

        // Try getting another students grade. This will give a grade of ASSIGN_GRADE_NOT_SET (-1).

        $assign->get_user_grade($otherstudent->id, true);

        // Rescale.

        assign_rescale_activity_grades($course, $assign->get_course_module(), 0, 100, 0, 10);

        // Get the grades for both students.

        $studentgrade = $assign->get_user_grade($student->id, true);

        $otherstudentgrade = $assign->get_user_grade($otherstudent->id, true);

        // Make sure the real grade is scaled, but the ASSIGN_GRADE_NOT_SET stays the same.

        $this->assertEquals($studentgrade->grade, 5);

        $this->assertEquals($otherstudentgrade->grade, ASSIGN_GRADE_NOT_SET);

    }

    /**

     * Return false when there are not overrides for this assign instance.

     */

    public function test_assign_is_override_calendar_event_no_override(): void {

        global $CFG, $DB;

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

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $this->setAdminUser();

        $duedate = time();

        $assign = $this->create_instance($course, ['duedate' => $duedate]);

        $instance = $assign->get_instance();

        $event = new \calendar_event((object)[

            'modulename' => 'assign',

            'instance' => $instance->id,

            'userid' => $student->id,

        ]);

        $this->assertFalse($assign->is_override_calendar_event($event));

    }

    /**

     * Return false if the given event isn't an assign module event.

     */

    public function test_assign_is_override_calendar_event_no_nodule_event(): void {

        global $CFG, $DB;

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

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $this->setAdminUser();

        $userid = $student->id;

        $duedate = time();

        $assign = $this->create_instance($course, ['duedate' => $duedate]);

        $instance = $assign->get_instance();

        $event = new \calendar_event((object)[

            'userid' => $userid

        ]);

        $this->assertFalse($assign->is_override_calendar_event($event));

    }

    /**

     * Return false if there is overrides for this use but they belong to another assign

     * instance.

     */

    public function test_assign_is_override_calendar_event_different_assign_instance(): void {

        global $CFG, $DB;

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

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $this->setAdminUser();

        $duedate = time();

        $assign = $this->create_instance($course, ['duedate' => $duedate]);

        $instance = $assign->get_instance();

        $otherassign = $this->create_instance($course, ['duedate' => $duedate]);

        $otherinstance = $otherassign->get_instance();

        $event = new \calendar_event((object) [

            'modulename' => 'assign',

            'instance' => $instance->id,

            'userid' => $student->id,

        ]);

        $DB->insert_record('assign_overrides', (object) [

                'assignid' => $otherinstance->id,

                'userid' => $student->id,

            ]);

        $this->assertFalse($assign->is_override_calendar_event($event));

    }

    /**

     * Return true if there is a user override for this event and assign instance.

     */

    public function test_assign_is_override_calendar_event_user_override(): void {

        global $CFG, $DB;

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

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $student = $this->getDataGenerator()->create_and_enrol($course, 'student');

        $this->setAdminUser();

        $duedate = time();

        $assign = $this->create_instance($course, ['duedate' => $duedate]);

        $instance = $assign->get_instance();

        $event = new \calendar_event((object) [

            'modulename' => 'assign',

            'instance' => $instance->id,

            'userid' => $student->id,

        ]);

        $DB->insert_record('assign_overrides', (object) [

                'assignid' => $instance->id,

                'userid' => $student->id,

            ]);

        $this->assertTrue($assign->is_override_calendar_event($event));

    }

    /**

     * Return true if there is a group override for the event and assign instance.

     */

    public function test_assign_is_override_calendar_event_group_override(): void {

        global $CFG, $DB;

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

        $this->resetAfterTest();

        $course = $this->getDataGenerator()->create_course();

        $this->setAdminUser();

        $duedate = time();

        $assign = $this->create_instance($course, ['duedate' => $duedate]);

        $instance = $assign->get_instance();

        $group = $this->getDataGenerator()->create_group(array('courseid' => $instance->course));

        $event = new \calendar_event((object) [

            'modulename' => 'assign',

            'instance' => $instance->id,

            'groupid' => $group->id,

        ]);

        $DB->insert_record('assign_overrides', (object) [

                'assignid' => $instance->id,

                'groupid' => $group->id,

            ]);

        $this->assertTrue($assign->is_override_calendar_event($event));

    }

    /**

     * Unknown event types should not have any limit restrictions returned.