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✏️ Editing: userlib_test.php

<?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_user;

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

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

/**
 * Unit tests for user lib api.
 *
 * @package    core_user
 * @category   test
 * @copyright  2013 Rajesh Taneja <rajesh@moodle.com>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class userlib_test extends \advanced_testcase {
    /**
     * Test user_get_user_details_courses
     */
    public function test_user_get_user_details_courses() {
        global $DB;

$this->resetAfterTest();

// Create user and modify user profile.
        $user1 = $this->getDataGenerator()->create_user();
        $user2 = $this->getDataGenerator()->create_user();
        $user3 = $this->getDataGenerator()->create_user();

$course1 = $this->getDataGenerator()->create_course();
        $coursecontext = \context_course::instance($course1->id);
        $teacherrole = $DB->get_record('role', array('shortname' => 'teacher'));
        $this->getDataGenerator()->enrol_user($user1->id, $course1->id);
        $this->getDataGenerator()->enrol_user($user2->id, $course1->id);
        role_assign($teacherrole->id, $user1->id, $coursecontext->id);
        role_assign($teacherrole->id, $user2->id, $coursecontext->id);

accesslib_clear_all_caches_for_unit_testing();

// Get user2 details as a user with super system capabilities.
        $result = user_get_user_details_courses($user2);
        $this->assertEquals($user2->id, $result['id']);
        $this->assertEquals(fullname($user2), $result['fullname']);
        $this->assertEquals($course1->id, $result['enrolledcourses'][0]['id']);

$this->setUser($user1);
        // Get user2 details as a user who can only see this user in a course.
        $result = user_get_user_details_courses($user2);
        $this->assertEquals($user2->id, $result['id']);
        $this->assertEquals(fullname($user2), $result['fullname']);
        $this->assertEquals($course1->id, $result['enrolledcourses'][0]['id']);

// Get user2 details as a user who doesn't share any course with user2.
        $this->setUser($user3);
        $result = user_get_user_details_courses($user2);
        $this->assertNull($result);
    }

/**
     * Verify return when course groupmode set to 'no groups'.
     */
    public function test_user_get_user_details_courses_groupmode_nogroups() {
        $this->resetAfterTest();

// Enrol 2 users into a course with groupmode set to 'no groups'.
        // Profiles should be visible.
        $user1 = $this->getDataGenerator()->create_user();
        $user2 = $this->getDataGenerator()->create_user();
        $course = $this->getDataGenerator()->create_course((object) ['groupmode' => 0]);
        $this->getDataGenerator()->enrol_user($user1->id, $course->id);
        $this->getDataGenerator()->enrol_user($user2->id, $course->id);

$this->setUser($user1);
        $userdetails = user_get_user_details_courses($user2);
        $this->assertIsArray($userdetails);
        $this->assertEquals($user2->id, $userdetails['id']);
    }

/**
     * Verify return when course groupmode set to 'separate groups'.
     */
    public function test_user_get_user_details_courses_groupmode_separate() {
        $this->resetAfterTest();

// Enrol 2 users into a course with groupmode set to 'separate groups'.
        // The users are not in any groups, so profiles should be hidden (same as if they were in separate groups).
        $user1 = $this->getDataGenerator()->create_user();
        $user2 = $this->getDataGenerator()->create_user();
        $course = $this->getDataGenerator()->create_course((object) ['groupmode' => 1]);
        $this->getDataGenerator()->enrol_user($user1->id, $course->id);
        $this->getDataGenerator()->enrol_user($user2->id, $course->id);

$this->setUser($user1);
        $this->assertNull(user_get_user_details_courses($user2));
    }

/**
     * Verify return when course groupmode set to 'visible groups'.
     */
    public function test_user_get_user_details_courses_groupmode_visible() {
        $this->resetAfterTest();

// Enrol 2 users into a course with groupmode set to 'visible groups'.
        // The users are not in any groups, and profiles should be visible because of the groupmode.
        $user1 = $this->getDataGenerator()->create_user();
        $user2 = $this->getDataGenerator()->create_user();
        $course = $this->getDataGenerator()->create_course((object) ['groupmode' => 2]);
        $this->getDataGenerator()->enrol_user($user1->id, $course->id);
        $this->getDataGenerator()->enrol_user($user2->id, $course->id);

$this->setUser($user1);
        $userdetails = user_get_user_details_courses($user2);
        $this->assertIsArray($userdetails);
        $this->assertEquals($user2->id, $userdetails['id']);
    }

/**
     * Tests that the user fields returned by the method can be limited.
     *
     * @covers ::user_get_user_details_courses
     */
    public function test_user_get_user_details_courses_limit_return() {
        $this->resetAfterTest();

// Setup some data.
        $user1 = $this->getDataGenerator()->create_user();
        $user2 = $this->getDataGenerator()->create_user();
        $course = $this->getDataGenerator()->create_course();
        $this->getDataGenerator()->enrol_user($user1->id, $course->id);
        $this->getDataGenerator()->enrol_user($user2->id, $course->id);

// Calculate the minimum fields that can be returned.
        $namefields = \core_user\fields::for_name()->get_required_fields();
        $fields = array_intersect($namefields, user_get_default_fields());

$minimaluser = (object) [
            'id' => $user2->id,
            'deleted' => $user2->deleted,
        ];

foreach ($namefields as $field) {
            $minimaluser->$field = $user2->$field;
        }

$this->setUser($user1);
        $fulldetails = user_get_user_details_courses($user2);
        $limiteddetails = user_get_user_details_courses($minimaluser, $fields);
        $this->assertIsArray($fulldetails);
        $this->assertIsArray($limiteddetails);
        $this->assertEquals($user2->id, $fulldetails['id']);
        $this->assertEquals($user2->id, $limiteddetails['id']);

// Test that less data was returned when using a filter.
        $fullcount = count($fulldetails);
        $limitedcount = count($limiteddetails);
        $this->assertLessThan($fullcount, $limitedcount);
        $this->assertNotEquals($fulldetails, $limiteddetails);
    }

/**
     * Test user_update_user.
     */
    public function test_user_update_user() {
        global $DB;

$this->resetAfterTest();

// Create user and modify user profile.
        $user = $this->getDataGenerator()->create_user();
        $user->firstname = 'Test';
        $user->password = 'M00dLe@T';

// Update user and capture event.
        $sink = $this->redirectEvents();
        user_update_user($user);
        $events = $sink->get_events();
        $sink->close();
        $event = array_pop($events);

// Test updated value.
        $dbuser = $DB->get_record('user', array('id' => $user->id));
        $this->assertSame($user->firstname, $dbuser->firstname);
        $this->assertNotSame('M00dLe@T', $dbuser->password);

// Test event.
        $this->assertInstanceOf('\core\event\user_updated', $event);
        $this->assertSame($user->id, $event->objectid);
        $this->assertEquals(\context_user::instance($user->id), $event->get_context());

// Update user with no password update.
        $password = $user->password = hash_internal_user_password('M00dLe@T');
        user_update_user($user, false);
        $dbuser = $DB->get_record('user', array('id' => $user->id));
        $this->assertSame($password, $dbuser->password);

// Verify event is not triggred by user_update_user when needed.
        $sink = $this->redirectEvents();
        user_update_user($user, false, false);
        $events = $sink->get_events();
        $sink->close();
        $this->assertCount(0, $events);

// With password, there should be 1 event.
        $sink = $this->redirectEvents();
        user_update_user($user, true, false);
        $events = $sink->get_events();
        $sink->close();
        $this->assertCount(1, $events);
        $event = array_pop($events);
        $this->assertInstanceOf('\core\event\user_password_updated', $event);

// Test user data validation.
        $user->username = 'johndoe123';
        $user->auth = 'shibolth';
        $user->country = 'WW';
        $user->lang = 'xy';
        $user->theme = 'somewrongthemename';
        $user->timezone = '30.5';
        $debugmessages = $this->getDebuggingMessages();
        user_update_user($user, true, false);
        $this->assertDebuggingCalledCount(5, $debugmessages);

// Now, with valid user data.
        $user->username = 'johndoe321';
        $user->auth = 'shibboleth';
        $user->country = 'AU';
        $user->lang = 'en';
        $user->theme = 'classic';
        $user->timezone = 'Australia/Perth';
        user_update_user($user, true, false);
        $this->assertDebuggingNotCalled();
    }

/**
     * Test create_users.
     */
    public function test_create_users() {
        global $DB;

$this->resetAfterTest();

$user = array(
            'username' => 'usernametest1',
            'password' => 'Moodle2012!',
            'idnumber' => 'idnumbertest1',
            'firstname' => 'First Name User Test 1',
            'lastname' => 'Last Name User Test 1',
            'middlename' => 'Middle Name User Test 1',
            'lastnamephonetic' => '最後のお名前のテスト一号',
            'firstnamephonetic' => 'お名前のテスト一号',
            'alternatename' => 'Alternate Name User Test 1',
            'email' => 'usertest1@example.com',
            'description' => 'This is a description for user 1',
            'city' => 'Perth',
            'country' => 'AU'
            );

// Create user and capture event.
        $sink = $this->redirectEvents();
        $user['id'] = user_create_user($user);
        $events = $sink->get_events();
        $sink->close();
        $event = array_pop($events);

// Test user info in DB.
        $dbuser = $DB->get_record('user', array('id' => $user['id']));
        $this->assertEquals($dbuser->username, $user['username']);
        $this->assertEquals($dbuser->idnumber, $user['idnumber']);
        $this->assertEquals($dbuser->firstname, $user['firstname']);
        $this->assertEquals($dbuser->lastname, $user['lastname']);
        $this->assertEquals($dbuser->email, $user['email']);
        $this->assertEquals($dbuser->description, $user['description']);
        $this->assertEquals($dbuser->city, $user['city']);
        $this->assertEquals($dbuser->country, $user['country']);

// Test event.
        $this->assertInstanceOf('\core\event\user_created', $event);
        $this->assertEquals($user['id'], $event->objectid);
        $this->assertEquals(\context_user::instance($user['id']), $event->get_context());

// Verify event is not triggred by user_create_user when needed.
        $user = array('username' => 'usernametest2'); // Create another user.
        $sink = $this->redirectEvents();
        user_create_user($user, true, false);
        $events = $sink->get_events();
        $sink->close();
        $this->assertCount(0, $events);

// Test user data validation, first some invalid data.
        $user['username'] = 'johndoe123';
        $user['auth'] = 'shibolth';
        $user['country'] = 'WW';
        $user['lang'] = 'xy';
        $user['theme'] = 'somewrongthemename';
        $user['timezone'] = '-30.5';
        $debugmessages = $this->getDebuggingMessages();
        $user['id'] = user_create_user($user, true, false);
        $this->assertDebuggingCalledCount(5, $debugmessages);
        $dbuser = $DB->get_record('user', array('id' => $user['id']));
        $this->assertEquals($dbuser->country, 0);
        $this->assertEquals($dbuser->lang, 'en');
        $this->assertEquals($dbuser->timezone, '');

// Now, with valid user data.
        $user['username'] = 'johndoe321';
        $user['auth'] = 'shibboleth';
        $user['country'] = 'AU';
        $user['lang'] = 'en';
        $user['theme'] = 'classic';
        $user['timezone'] = 'Australia/Perth';
        user_create_user($user, true, false);
        $this->assertDebuggingNotCalled();
    }

/**
     * Test that creating users populates default values
     *
     * @covers ::user_create_user
     */
    public function test_user_create_user_default_values(): void {
        global $CFG;

$this->resetAfterTest();

// Update default values for city/country (both initially empty).
        set_config('defaultcity', 'Nadi');
        set_config('country', 'FJ');

$userid = user_create_user((object) [
            'username' => 'newuser',
        ], false, false);

$user = \core_user::get_user($userid);
        $this->assertEquals($CFG->calendartype, $user->calendartype);
        $this->assertEquals($CFG->defaultpreference_maildisplay, $user->maildisplay);
        $this->assertEquals($CFG->defaultpreference_mailformat, $user->mailformat);
        $this->assertEquals($CFG->defaultpreference_maildigest, $user->maildigest);
        $this->assertEquals($CFG->defaultpreference_autosubscribe, $user->autosubscribe);
        $this->assertEquals($CFG->defaultpreference_trackforums, $user->trackforums);
        $this->assertEquals($CFG->lang, $user->lang);
        $this->assertEquals($CFG->defaultcity, $user->city);
        $this->assertEquals($CFG->country, $user->country);
    }

/**
     * Test that {@link user_create_user()} throws exception when invalid username is provided.
     *
     * @dataProvider data_create_user_invalid_username
     * @param string $username Invalid username
     * @param string $expectmessage Expected exception message
     */
    public function test_create_user_invalid_username($username, $expectmessage) {
        global $CFG;

$this->resetAfterTest();
        $CFG->extendedusernamechars = false;

$user = [
            'username' => $username,
        ];

$this->expectException('moodle_exception');
        $this->expectExceptionMessage($expectmessage);

user_create_user($user);
    }

/**
     * Data provider for {@link self::test_create_user_invalid_username()}.
     *
     * @return array
     */
    public function data_create_user_invalid_username() {
        return [
            'empty_string' => [
                '',
                'The username cannot be blank',
            ],
            'only_whitespace' => [
                "\t\t  \t\n ",
                'The username cannot be blank',
            ],
            'lower_case' => [
                'Mudrd8mz',
                'The username must be in lower case',
            ],
            'extended_chars' => [
                'dmudrák',
                'The given username contains invalid characters',
            ],
        ];
    }

/**
     * Test function user_count_login_failures().
     */
    public function test_user_count_login_failures() {
        $this->resetAfterTest();
        $user = $this->getDataGenerator()->create_user();
        $this->assertEquals(0, get_user_preferences('login_failed_count_since_success', 0, $user));
        for ($i = 0; $i < 10; $i++) {
            login_attempt_failed($user);
        }
        $this->assertEquals(10, get_user_preferences('login_failed_count_since_success', 0, $user));
        $count = user_count_login_failures($user); // Reset count.
        $this->assertEquals(10, $count);
        $this->assertEquals(0, get_user_preferences('login_failed_count_since_success', 0, $user));

for ($i = 0; $i < 10; $i++) {
            login_attempt_failed($user);
        }
        $this->assertEquals(10, get_user_preferences('login_failed_count_since_success', 0, $user));
        $count = user_count_login_failures($user, false); // Do not reset count.
        $this->assertEquals(10, $count);
        $this->assertEquals(10, get_user_preferences('login_failed_count_since_success', 0, $user));
    }

/**
     * Test function user_add_password_history().
     */
    public function test_user_add_password_history() {
        global $DB;

$this->resetAfterTest();

$user1 = $this->getDataGenerator()->create_user();
        $user2 = $this->getDataGenerator()->create_user();
        $user3 = $this->getDataGenerator()->create_user();
        $DB->delete_records('user_password_history', array());

set_config('passwordreuselimit', 0);

user_add_password_history($user1->id, 'pokus');
        $this->assertEquals(0, $DB->count_records('user_password_history'));

// Test adding and discarding of old.

set_config('passwordreuselimit', 3);

user_add_password_history($user1->id, 'pokus');
        $this->assertEquals(1, $DB->count_records('user_password_history'));
        $this->assertEquals(1, $DB->count_records('user_password_history', array('userid' => $user1->id)));

user_add_password_history($user1->id, 'pokus2');
        user_add_password_history($user1->id, 'pokus3');
        user_add_password_history($user1->id, 'pokus4');
        $this->assertEquals(3, $DB->count_records('user_password_history'));
        $this->assertEquals(3, $DB->count_records('user_password_history', array('userid' => $user1->id)));

user_add_password_history($user2->id, 'pokus1');
        $this->assertEquals(4, $DB->count_records('user_password_history'));
        $this->assertEquals(3, $DB->count_records('user_password_history', array('userid' => $user1->id)));
        $this->assertEquals(1, $DB->count_records('user_password_history', array('userid' => $user2->id)));

user_add_password_history($user2->id, 'pokus2');
        user_add_password_history($user2->id, 'pokus3');
        $this->assertEquals(3, $DB->count_records('user_password_history', array('userid' => $user2->id)));

$ids = array_keys($DB->get_records('user_password_history', array('userid' => $user2->id), 'timecreated ASC, id ASC'));
        user_add_password_history($user2->id, 'pokus4');
        $this->assertEquals(3, $DB->count_records('user_password_history', array('userid' => $user2->id)));
        $newids = array_keys($DB->get_records('user_password_history', array('userid' => $user2->id), 'timecreated ASC, id ASC'));

$removed = array_shift($ids);
        $added = array_pop($newids);
        $this->assertSame($ids, $newids);
        $this->assertGreaterThan($removed, $added);

// Test disabling prevents changes.

set_config('passwordreuselimit', 0);

$this->assertEquals(6, $DB->count_records('user_password_history'));

$ids = array_keys($DB->get_records('user_password_history', array('userid' => $user2->id), 'timecreated ASC, id ASC'));
        user_add_password_history($user2->id, 'pokus5');
        user_add_password_history($user3->id, 'pokus1');
        $newids = array_keys($DB->get_records('user_password_history', array('userid' => $user2->id), 'timecreated ASC, id ASC'));
        $this->assertSame($ids, $newids);
        $this->assertEquals(6, $DB->count_records('user_password_history'));

set_config('passwordreuselimit', -1);

$ids = array_keys($DB->get_records('user_password_history', array('userid' => $user2->id), 'timecreated ASC, id ASC'));
        user_add_password_history($user2->id, 'pokus6');
        user_add_password_history($user3->id, 'pokus6');
        $newids = array_keys($DB->get_records('user_password_history', array('userid' => $user2->id), 'timecreated ASC, id ASC'));
        $this->assertSame($ids, $newids);
        $this->assertEquals(6, $DB->count_records('user_password_history'));
    }

/**
     * Test function user_add_password_history().
     */
    public function test_user_is_previously_used_password() {
        global $DB;

$this->resetAfterTest();

$user1 = $this->getDataGenerator()->create_user();
        $user2 = $this->getDataGenerator()->create_user();
        $DB->delete_records('user_password_history', array());

set_config('passwordreuselimit', 0);

user_add_password_history($user1->id, 'pokus');
        $this->assertFalse(user_is_previously_used_password($user1->id, 'pokus'));

set_config('passwordreuselimit', 3);

user_add_password_history($user2->id, 'pokus1');
        user_add_password_history($user2->id, 'pokus2');

user_add_password_history($user1->id, 'pokus1');
        $this->assertTrue(user_is_previously_used_password($user1->id, 'pokus1'));
        $this->assertFalse(user_is_previously_used_password($user1->id, 'pokus2'));
        $this->assertFalse(user_is_previously_used_password($user1->id, 'pokus3'));
        $this->assertFalse(user_is_previously_used_password($user1->id, 'pokus4'));

user_add_password_history($user1->id, 'pokus2');
        $this->assertTrue(user_is_previously_used_password($user1->id, 'pokus1'));
        $this->assertTrue(user_is_previously_used_password($user1->id, 'pokus2'));
        $this->assertFalse(user_is_previously_used_password($user1->id, 'pokus3'));
        $this->assertFalse(user_is_previously_used_password($user1->id, 'pokus4'));

user_add_password_history($user1->id, 'pokus3');
        $this->assertTrue(user_is_previously_used_password($user1->id, 'pokus1'));
        $this->assertTrue(user_is_previously_used_password($user1->id, 'pokus2'));
        $this->assertTrue(user_is_previously_used_password($user1->id, 'pokus3'));
        $this->assertFalse(user_is_previously_used_password($user1->id, 'pokus4'));

user_add_password_history($user1->id, 'pokus4');
        $this->assertFalse(user_is_previously_used_password($user1->id, 'pokus1'));
        $this->assertTrue(user_is_previously_used_password($user1->id, 'pokus2'));
        $this->assertTrue(user_is_previously_used_password($user1->id, 'pokus3'));
        $this->assertTrue(user_is_previously_used_password($user1->id, 'pokus4'));

set_config('passwordreuselimit', 2);

$this->assertFalse(user_is_previously_used_password($user1->id, 'pokus1'));
        $this->assertFalse(user_is_previously_used_password($user1->id, 'pokus2'));
        $this->assertTrue(user_is_previously_used_password($user1->id, 'pokus3'));
        $this->assertTrue(user_is_previously_used_password($user1->id, 'pokus4'));

set_config('passwordreuselimit', 3);

set_config('passwordreuselimit', 0);

$this->assertFalse(user_is_previously_used_password($user1->id, 'pokus1'));
        $this->assertFalse(user_is_previously_used_password($user1->id, 'pokus2'));
        $this->assertFalse(user_is_previously_used_password($user1->id, 'pokus3'));
        $this->assertFalse(user_is_previously_used_password($user1->id, 'pokus4'));
    }

/**
     * Test that password history is deleted together with user.
     */
    public function test_delete_of_hashes_on_user_delete() {
        global $DB;

$this->resetAfterTest();

$user1 = $this->getDataGenerator()->create_user();
        $user2 = $this->getDataGenerator()->create_user();
        $DB->delete_records('user_password_history', array());

set_config('passwordreuselimit', 3);

user_add_password_history($user1->id, 'pokus');
        user_add_password_history($user2->id, 'pokus1');
        user_add_password_history($user2->id, 'pokus2');

$this->assertEquals(3, $DB->count_records('user_password_history'));
        $this->assertEquals(1, $DB->count_records('user_password_history', array('userid' => $user1->id)));
        $this->assertEquals(2, $DB->count_records('user_password_history', array('userid' => $user2->id)));

delete_user($user2);
        $this->assertEquals(1, $DB->count_records('user_password_history'));
        $this->assertEquals(1, $DB->count_records('user_password_history', array('userid' => $user1->id)));
        $this->assertEquals(0, $DB->count_records('user_password_history', array('userid' => $user2->id)));
    }

/**
     * Test user_list_view function
     */
    public function test_user_list_view() {

$this->resetAfterTest();

// Course without sections.
        $course = $this->getDataGenerator()->create_course();
        $context = \context_course::instance($course->id);

$this->setAdminUser();

// Redirect events to the sink, so we can recover them later.
        $sink = $this->redirectEvents();

user_list_view($course, $context);
        $events = $sink->get_events();
        $this->assertCount(1, $events);
        $event = reset($events);

// Check the event details are correct.
        $this->assertInstanceOf('\core\event\user_list_viewed', $event);
        $this->assertEquals($context, $event->get_context());
        $this->assertEquals($course->shortname, $event->other['courseshortname']);
        $this->assertEquals($course->fullname, $event->other['coursefullname']);

}

/**
     * Test setting the user menu avatar size.
     */
    public function test_user_menu_custom_avatar_size() {
        global $PAGE;
        $this->resetAfterTest(true);

$testsize = 100;

$PAGE->set_url('/');
        $user = $this->getDataGenerator()->create_user();
        $this->setUser($user);
        $opts = user_get_user_navigation_info($user, $PAGE, array('avatarsize' => $testsize));
        $avatarhtml = $opts->metadata['useravatar'];

$matches = [];
        preg_match('/size-100/', $avatarhtml, $matches);
        $this->assertCount(1, $matches);
    }

/**
     * Test user_can_view_profile
     */
    public function test_user_can_view_profile() {
        global $DB, $CFG;

$this->resetAfterTest();

// Create five users.
        $user1 = $this->getDataGenerator()->create_user();
        $user2 = $this->getDataGenerator()->create_user();
        $user3 = $this->getDataGenerator()->create_user();
        $user4 = $this->getDataGenerator()->create_user();
        $user5 = $this->getDataGenerator()->create_user();
        $user6 = $this->getDataGenerator()->create_user(array('deleted' => 1));
        $user7 = $this->getDataGenerator()->create_user();
        $user8 = $this->getDataGenerator()->create_user();
        $user8->id = 0; // Visitor.

$studentrole = $DB->get_record('role', array('shortname' => 'student'));
        // Add the course creator role to the course contact and assign a user to that role.
        $CFG->coursecontact = '2';
        $coursecreatorrole = $DB->get_record('role', array('shortname' => 'coursecreator'));
        $this->getDataGenerator()->role_assign($coursecreatorrole->id, $user7->id);

// Create two courses.
        $course1 = $this->getDataGenerator()->create_course();
        $course2 = $this->getDataGenerator()->create_course();
        $coursecontext = \context_course::instance($course2->id);
        // Prepare another course with separate groups and groupmodeforce set to true.
        $record = new \stdClass();
        $record->groupmode = 1;
        $record->groupmodeforce = 1;
        $course3 = $this->getDataGenerator()->create_course($record);
        // Enrol users 1 and 2 in first course.
        $this->getDataGenerator()->enrol_user($user1->id, $course1->id);
        $this->getDataGenerator()->enrol_user($user2->id, $course1->id);
        // Enrol users 2 and 3 in second course.
        $this->getDataGenerator()->enrol_user($user2->id, $course2->id);
        $this->getDataGenerator()->enrol_user($user3->id, $course2->id);
        // Enrol users 1, 4, and 5 into course 3.
        $this->getDataGenerator()->enrol_user($user1->id, $course3->id);
        $this->getDataGenerator()->enrol_user($user4->id, $course3->id);
        $this->getDataGenerator()->enrol_user($user5->id, $course3->id);

// User 3 should not be able to see user 1, either by passing their own course (course 2) or user 1's course (course 1).
        $this->setUser($user3);
        $this->assertFalse(user_can_view_profile($user1, $course2));
        $this->assertFalse(user_can_view_profile($user1, $course1));

// Remove capability moodle/user:viewdetails in course 2.
        assign_capability('moodle/user:viewdetails', CAP_PROHIBIT, $studentrole->id, $coursecontext);
        // Set current user to user 1.
        $this->setUser($user1);
        // User 1 can see User 1's profile.
        $this->assertTrue(user_can_view_profile($user1));

$tempcfg = $CFG->forceloginforprofiles;
        $CFG->forceloginforprofiles = 0;
        // Not forced to log in to view profiles, should be able to see all profiles besides user 6.
        $users = array($user1, $user2, $user3, $user4, $user5, $user7);
        foreach ($users as $user) {
            $this->assertTrue(user_can_view_profile($user));
        }
        // Restore setting.
        $CFG->forceloginforprofiles = $tempcfg;

// User 1 can not see user 6 as they have been deleted.
        $this->assertFalse(user_can_view_profile($user6));
        // User 1 can see User 7 as they are a course contact.
        $this->assertTrue(user_can_view_profile($user7));
        // User 1 is in a course with user 2 and has the right capability - return true.
        $this->assertTrue(user_can_view_profile($user2));
        // User 1 is not in a course with user 3 - return false.
        $this->assertFalse(user_can_view_profile($user3));

// Set current user to user 2.
        $this->setUser($user2);
        // User 2 is in a course with user 3 but does not have the right capability - return false.
        $this->assertFalse(user_can_view_profile($user3));

// Set user 1 in one group and users 4 and 5 in another group.
        $group1 = $this->getDataGenerator()->create_group(array('courseid' => $course3->id));
        $group2 = $this->getDataGenerator()->create_group(array('courseid' => $course3->id));
        groups_add_member($group1->id, $user1->id);
        groups_add_member($group2->id, $user4->id);
        groups_add_member($group2->id, $user5->id);
        $this->setUser($user1);
        // Check that user 1 can not see user 4.
        $this->assertFalse(user_can_view_profile($user4));
        // Check that user 5 can see user 4.
        $this->setUser($user5);
        $this->assertTrue(user_can_view_profile($user4));

// Test the user:viewalldetails cap check using the course creator role which, by default, can't see student profiles.
        $this->setUser($user7);
        $this->assertFalse(user_can_view_profile($user4));
        assign_capability('moodle/user:viewalldetails', CAP_ALLOW, $coursecreatorrole->id, \context_system::instance()->id, true);
        reload_all_capabilities();
        $this->assertTrue(user_can_view_profile($user4));
        unassign_capability('moodle/user:viewalldetails', $coursecreatorrole->id, $coursecontext->id);
        reload_all_capabilities();

$CFG->coursecontact = null;

// Visitor (Not a guest user, userid=0).
        $CFG->forceloginforprofiles = 1;
        $this->setUser($user8);
        $this->assertFalse(user_can_view_profile($user1));

// Let us test with guest user.
        $this->setGuestUser();
        $CFG->forceloginforprofiles = 1;
        foreach ($users as $user) {
            $this->assertFalse(user_can_view_profile($user));
        }

// Even with cap, still guests should not be allowed in.
        $guestrole = $DB->get_records_menu('role', array('shortname' => 'guest'), 'id', 'archetype, id');
        assign_capability('moodle/user:viewdetails', CAP_ALLOW, $guestrole['guest'], \context_system::instance()->id, true);
        reload_all_capabilities();
        foreach ($users as $user) {
            $this->assertFalse(user_can_view_profile($user));
        }

$CFG->forceloginforprofiles = 0;
        foreach ($users as $user) {
            $this->assertTrue(user_can_view_profile($user));
        }

// Let us test with Visitor user.
        $this->setUser($user8);
        $CFG->forceloginforprofiles = 1;
        foreach ($users as $user) {
            $this->assertFalse(user_can_view_profile($user));
        }

$CFG->forceloginforprofiles = 0;
        foreach ($users as $user) {
            $this->assertTrue(user_can_view_profile($user));
        }

// Testing non-shared courses where capabilities are met, using system role overrides.
        $CFG->forceloginforprofiles = $tempcfg;
        $course4 = $this->getDataGenerator()->create_course();
        $this->getDataGenerator()->enrol_user($user1->id, $course4->id);

// Assign a manager role at the system context.
        $managerrole = $DB->get_record('role', array('shortname' => 'manager'));
        $user9 = $this->getDataGenerator()->create_user();
        $this->getDataGenerator()->role_assign($managerrole->id, $user9->id);

// Make sure viewalldetails and viewdetails are overridden to 'prevent' (i.e. can be overridden at a lower context).
        $systemcontext = \context_system::instance();
        assign_capability('moodle/user:viewdetails', CAP_PREVENT, $managerrole->id, $systemcontext, true);
        assign_capability('moodle/user:viewalldetails', CAP_PREVENT, $managerrole->id, $systemcontext, true);

// And override these to 'Allow' in a specific course.
        $course4context = \context_course::instance($course4->id);
        assign_capability('moodle/user:viewalldetails', CAP_ALLOW, $managerrole->id, $course4context, true);
        assign_capability('moodle/user:viewdetails', CAP_ALLOW, $managerrole->id, $course4context, true);

// The manager now shouldn't have viewdetails in the system or user context.
        $this->setUser($user9);
        $user1context = \context_user::instance($user1->id);
        $this->assertFalse(has_capability('moodle/user:viewdetails', $systemcontext));
        $this->assertFalse(has_capability('moodle/user:viewdetails', $user1context));

// Confirm that user_can_view_profile() returns true for $user1 when called without $course param. It should find $course1.
        $this->assertTrue(user_can_view_profile($user1));

// Confirm this also works when restricting scope to just that course.
        $this->assertTrue(user_can_view_profile($user1, $course4));
    }

/**
     * Test user_get_user_details
     */
    public function test_user_get_user_details() {
        global $DB;

$this->resetAfterTest();

// Create user and modify user profile.
        $teacher = $this->getDataGenerator()->create_user();
        $student = $this->getDataGenerator()->create_user();
        $studentfullname = fullname($student);

$course1 = $this->getDataGenerator()->create_course();
        $coursecontext = \context_course::instance($course1->id);
        $teacherrole = $DB->get_record('role', array('shortname' => 'teacher'));
        $studentrole = $DB->get_record('role', array('shortname' => 'student'));
        $this->getDataGenerator()->enrol_user($teacher->id, $course1->id);
        $this->getDataGenerator()->enrol_user($student->id, $course1->id);
        role_assign($teacherrole->id, $teacher->id, $coursecontext->id);
        role_assign($studentrole->id, $student->id, $coursecontext->id);

accesslib_clear_all_caches_for_unit_testing();

// Get student details as a user with super system capabilities.
        $result = user_get_user_details($student, $course1);
        $this->assertEquals($student->id, $result['id']);
        $this->assertEquals($studentfullname, $result['fullname']);
        $this->assertEquals($course1->id, $result['enrolledcourses'][0]['id']);

$this->setUser($teacher);
        // Get student details as a user who can only see this user in a course.
        $result = user_get_user_details($student, $course1);
        $this->assertEquals($student->id, $result['id']);
        $this->assertEquals($studentfullname, $result['fullname']);
        $this->assertEquals($course1->id, $result['enrolledcourses'][0]['id']);

// Get student details with required fields.
        $result = user_get_user_details($student, $course1, array('id', 'fullname'));
        $this->assertCount(2, $result);
        $this->assertEquals($student->id, $result['id']);
        $this->assertEquals($studentfullname, $result['fullname']);

// Get exception for invalid required fields.
        $this->expectException('moodle_exception');
        $result = user_get_user_details($student, $course1, array('wrongrequiredfield'));
    }

/**
     * Regression test for MDL-57840.
     *
     * Ensure the fields "auth, confirmed, idnumber, lang, theme, timezone and mailformat" are present when
     * calling user_get_user_details() function.
     */
    public function test_user_get_user_details_missing_fields() {
        global $CFG;

$this->resetAfterTest(true);
        $this->setAdminUser(); // We need capabilities to view the data.
        $user = self::getDataGenerator()->create_user([
                                                          'auth'       => 'email',
                                                          'confirmed'  => '0',
                                                          'idnumber'   => 'someidnumber',
                                                          'lang'       => 'en',
                                                          'theme'      => $CFG->theme,
                                                          'timezone'   => '5',
                                                          'mailformat' => '0',
                                                          'trackforums' => '1',
                                                      ]);

// Fields that should get by default.
        $got = user_get_user_details($user);
        self::assertSame('email', $got['auth']);
        self::assertSame('0', $got['confirmed']);
        self::assertSame('someidnumber', $got['idnumber']);
        self::assertSame('en', $got['lang']);
        self::assertSame($CFG->theme, $got['theme']);
        self::assertSame('5', $got['timezone']);
        self::assertSame('0', $got['mailformat']);
        self::assertSame('1', $got['trackforums']);
    }

/**
     * Test user_get_user_details_permissions.
     * @covers ::user_get_user_details
     */
    public function test_user_get_user_details_permissions() {
        global $CFG;

$this->resetAfterTest();

// Create user and modify user profile.
        $teacher = $this->getDataGenerator()->create_user();
        $student1 = $this->getDataGenerator()->create_user(['idnumber' => 'user1id', 'city' => 'Barcelona', 'address' => 'BCN 1B']);
        $student2 = $this->getDataGenerator()->create_user();
        $student1fullname = fullname($student1);

$course = $this->getDataGenerator()->create_course();
        $coursecontext = \context_course::instance($course->id);
        $this->getDataGenerator()->enrol_user($teacher->id, $course->id);
        $this->getDataGenerator()->enrol_user($student1->id, $course->id);
        $this->getDataGenerator()->enrol_user($student2->id, $course->id);
        $this->getDataGenerator()->role_assign('teacher', $teacher->id, $coursecontext->id);
        $this->getDataGenerator()->role_assign('student', $student1->id, $coursecontext->id);
        $this->getDataGenerator()->role_assign('student', $student2->id, $coursecontext->id);

accesslib_clear_all_caches_for_unit_testing();

// Get student details as a user with super system capabilities.
        $result = user_get_user_details($student1, $course);
        $this->assertEquals($student1->id, $result['id']);
        $this->assertEquals($student1fullname, $result['fullname']);
        $this->assertEquals($course->id, $result['enrolledcourses'][0]['id']);

$this->setUser($student2);

// Get student details with required fields.
        $result = user_get_user_details($student1, $course, array('id', 'fullname', 'timezone', 'city', 'address', 'idnumber'));
        $this->assertCount(4, $result); // Ensure address (never returned), idnumber (identity field) are not returned here.
        $this->assertEquals($student1->id, $result['id']);
        $this->assertEquals($student1fullname, $result['fullname']);
        $this->assertEquals($student1->timezone, $result['timezone']);
        $this->assertEquals($student1->city, $result['city']);

// Set new identity fields and hidden fields and try to retrieve them without permission.
        $CFG->showuseridentity = $CFG->showuseridentity . ',idnumber';
        $CFG->hiddenuserfields = 'city';
        $result = user_get_user_details($student1, $course, array('id', 'fullname', 'timezone', 'city', 'address', 'idnumber'));
        $this->assertCount(3, $result); // Ensure address, city and idnumber are not returned here.
        $this->assertEquals($student1->id, $result['id']);
        $this->assertEquals($student1fullname, $result['fullname']);
        $this->assertEquals($student1->timezone, $result['timezone']);

// Now, teacher should have permission to see the idnumber and city fields.
        $this->setUser($teacher);
        $result = user_get_user_details($student1, $course, array('id', 'fullname', 'timezone', 'city', 'address', 'idnumber'));
        $this->assertCount(5, $result); // Ensure address is not returned here.
        $this->assertEquals($student1->id, $result['id']);
        $this->assertEquals($student1fullname, $result['fullname']);
        $this->assertEquals($student1->timezone, $result['timezone']);
        $this->assertEquals($student1->idnumber, $result['idnumber']);
        $this->assertEquals($student1->city, $result['city']);

// And admins can see anything.
        $this->setAdminUser();
        $result = user_get_user_details($student1, $course, array('id', 'fullname', 'timezone', 'city', 'address', 'idnumber'));
        $this->assertCount(6, $result);
        $this->assertEquals($student1->id, $result['id']);
        $this->assertEquals($student1fullname, $result['fullname']);
        $this->assertEquals($student1->timezone, $result['timezone']);
        $this->assertEquals($student1->idnumber, $result['idnumber']);
        $this->assertEquals($student1->city, $result['city']);
        $this->assertEquals($student1->address, $result['address']);
    }

/**
     * Test user_get_user_details_groups.
     * @covers ::user_get_user_details
     */
    public function test_user_get_user_details_groups() {
        $this->resetAfterTest();

$group1 = $this->getDataGenerator()->create_group(['courseid' => $course->id, 'name' => 'G1']);
        $group2 = $this->getDataGenerator()->create_group(['courseid' => $course->id, 'name' => 'G2']);

// Each student in one group but teacher in two.
        groups_add_member($group1->id, $student1->id);
        groups_add_member($group1->id, $teacher->id);
        groups_add_member($group2->id, $student2->id);
        groups_add_member($group2->id, $teacher->id);

accesslib_clear_all_caches_for_unit_testing();

// A student can see other users groups when separate groups are not forced.
        $this->setUser($student2);

// Get student details with groups.
        $result = user_get_user_details($student1, $course, array('id', 'fullname', 'groups'));
        $this->assertCount(3, $result);
        $this->assertEquals($group1->id, $result['groups'][0]['id']);

// Teacher is in two different groups.
        $result = user_get_user_details($teacher, $course, array('id', 'fullname', 'groups'));

// Order by group id.
        usort($result['groups'], function($a, $b) {
            return $a['id'] - $b['id'];
        });

$this->assertCount(3, $result);
        $this->assertCount(2, $result['groups']);
        $this->assertEquals($group1->id, $result['groups'][0]['id']);
        $this->assertEquals($group2->id, $result['groups'][1]['id']);

// Change to separate groups.
        $course->groupmode = SEPARATEGROUPS;
        $course->groupmodeforce = true;
        update_course($course);

// Teacher is in two groups but I can only see the one shared with me.
        $result = user_get_user_details($teacher, $course, array('id', 'fullname', 'groups'));

$this->assertCount(3, $result);
        $this->assertCount(1, $result['groups']);
        $this->assertEquals($group2->id, $result['groups'][0]['id']);
    }
}

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