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 mod_chat;

use core_external\external_api;

use externallib_advanced_testcase;

use mod_chat_external;

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

global $CFG;

require_once($CFG->dirroot . '/webservice/tests/helpers.php');

/**

 * External mod_chat functions unit tests

 *

 * @package    mod_chat

 * @category   external

 * @copyright  2015 Juan Leyva <juan@moodle.com>

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

 * @since      Moodle 3.0

 */

class externallib_test extends externallib_advanced_testcase {

    /**

     * Setup testcase.

     */

    public function setUp(): void {

        // Chat module is disabled by default, enable it for testing.

        $manager = \core_plugin_manager::resolve_plugininfo_class('mod');

        $manager::enable_plugin('chat', 1);

    }

    /**

     * Test login user

     */

    public function test_login_user(): void {

        global $DB;

        $this->resetAfterTest(true);

        // Setup test data.

        $this->setAdminUser();

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

        $chat = $this->getDataGenerator()->create_module('chat', array('course' => $course->id));

        $user = self::getDataGenerator()->create_user();

        $this->setUser($user);

        $studentrole = $DB->get_record('role', array('shortname' => 'student'));

        $this->getDataGenerator()->enrol_user($user->id, $course->id, $studentrole->id);

        $result = mod_chat_external::login_user($chat->id);

        $result = external_api::clean_returnvalue(mod_chat_external::login_user_returns(), $result);

        // Test session started.

        $sid = $DB->get_field('chat_users', 'sid', array('userid' => $user->id, 'chatid' => $chat->id));

        $this->assertEquals($result['chatsid'], $sid);

    }

    /**

     * Test get chat users

     */

    public function test_get_chat_users(): void {

        global $DB;

        $this->resetAfterTest(true);

        // Setup test data.

        $this->setAdminUser();

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

        $chat = $this->getDataGenerator()->create_module('chat', array('course' => $course->id));

        $user1 = self::getDataGenerator()->create_user();

        $user2 = self::getDataGenerator()->create_user();

        $this->setUser($user1);

        $studentrole = $DB->get_record('role', array('shortname' => 'student'));

        $this->getDataGenerator()->enrol_user($user1->id, $course->id, $studentrole->id);

        $this->getDataGenerator()->enrol_user($user2->id, $course->id, $studentrole->id);

        $result = mod_chat_external::login_user($chat->id);

        $result = external_api::clean_returnvalue(mod_chat_external::login_user_returns(), $result);

        $this->setUser($user2);

        $result = mod_chat_external::login_user($chat->id);

        $result = external_api::clean_returnvalue(mod_chat_external::login_user_returns(), $result);

        // Get users.

        $result = mod_chat_external::get_chat_users($result['chatsid']);

        $result = external_api::clean_returnvalue(mod_chat_external::get_chat_users_returns(), $result);

        // Check correct users.

        $this->assertCount(2, $result['users']);

        $found = 0;

        foreach ($result['users'] as $user) {

            if ($user['id'] == $user1->id or $user['id'] == $user2->id) {

                $found++;

            }

        }

        $this->assertEquals(2, $found);

    }

    /**

     * Test send and get chat messages

     */

    public function test_send_get_chat_message(): void {

        global $DB;

        $this->resetAfterTest(true);

        // Setup test data.

        $this->setAdminUser();

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

        $chat = $this->getDataGenerator()->create_module('chat', array('course' => $course->id));

        $user = self::getDataGenerator()->create_user();

        $this->setUser($user);

        $studentrole = $DB->get_record('role', array('shortname' => 'student'));

        $this->getDataGenerator()->enrol_user($user->id, $course->id, $studentrole->id);

        $result = mod_chat_external::login_user($chat->id);

        $result = external_api::clean_returnvalue(mod_chat_external::login_user_returns(), $result);

        $chatsid = $result['chatsid'];

        $result = mod_chat_external::send_chat_message($chatsid, 'hello!');

        $result = external_api::clean_returnvalue(mod_chat_external::send_chat_message_returns(), $result);

        // Test messages received.

        $result = mod_chat_external::get_chat_latest_messages($chatsid, 0);

        $result = external_api::clean_returnvalue(mod_chat_external::get_chat_latest_messages_returns(), $result);

        foreach ($result['messages'] as $message) {

            // Ommit system messages, like user just joined in.

            if ($message['system']) {

                continue;

            }

            $this->assertEquals('hello!', $message['message']);

        }

    }

    /**

     * Test view_chat

     */

    public function test_view_chat(): void {

        global $DB;

        $this->resetAfterTest(true);

        // Setup test data.

        $this->setAdminUser();

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

        $chat = $this->getDataGenerator()->create_module('chat', array('course' => $course->id));

        $context = \context_module::instance($chat->cmid);

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

        // Test invalid instance id.

        try {

            mod_chat_external::view_chat(0);

            $this->fail('Exception expected due to invalid mod_chat instance id.');

        } catch (\moodle_exception $e) {

            $this->assertEquals('invalidrecord', $e->errorcode);

        }

        // Test not-enrolled user.

        $user = self::getDataGenerator()->create_user();

        $this->setUser($user);

        try {

            mod_chat_external::view_chat($chat->id);

            $this->fail('Exception expected due to not enrolled user.');

        } catch (\moodle_exception $e) {

            $this->assertEquals('requireloginerror', $e->errorcode);

        }

        // Test user with full capabilities.

        $studentrole = $DB->get_record('role', array('shortname' => 'student'));

        $this->getDataGenerator()->enrol_user($user->id, $course->id, $studentrole->id);

        // Trigger and capture the event.

        $sink = $this->redirectEvents();

        $result = mod_chat_external::view_chat($chat->id);

        $result = external_api::clean_returnvalue(mod_chat_external::view_chat_returns(), $result);

        $events = $sink->get_events();

        $this->assertCount(1, $events);

        $event = array_shift($events);

        // Checking that the event contains the expected values.

        $this->assertInstanceOf('\mod_chat\event\course_module_viewed', $event);

        $this->assertEquals($context, $event->get_context());

        $moodlechat = new \moodle_url('/mod/chat/view.php', array('id' => $cm->id));

        $this->assertEquals($moodlechat, $event->get_url());

        $this->assertEventContextNotUsed($event);

        $this->assertNotEmpty($event->get_name());

        // Test user with no capabilities.

        // We need a explicit prohibit since this capability is only defined in authenticated user and guest roles.

        assign_capability('mod/chat:chat', CAP_PROHIBIT, $studentrole->id, $context->id);

        accesslib_clear_all_caches_for_unit_testing();

        try {

            mod_chat_external::view_chat($chat->id);

            $this->fail('Exception expected due to missing capability.');

        } catch (\moodle_exception $e) {

            $this->assertEquals('nopermissions', $e->errorcode);

        }

    }

    /**

     * Test get_chats_by_courses

     */

    public function test_get_chats_by_courses(): void {

        global $DB, $CFG;

        $this->resetAfterTest(true);

        $this->setAdminUser();

        // Set global chat method.

        $CFG->chat_method = 'header_js';

        $course1 = self::getDataGenerator()->create_course();

        $chatoptions1 = array(

                              'course' => $course1->id,

                              'name' => 'First Chat'

                             );

        $chat1 = self::getDataGenerator()->create_module('chat', $chatoptions1);

        $course2 = self::getDataGenerator()->create_course();

        $chatoptions2 = array(

                              'course' => $course2->id,

                              'name' => 'Second Chat'

                             );

        $chat2 = self::getDataGenerator()->create_module('chat', $chatoptions2);

        $student1 = $this->getDataGenerator()->create_user();

        $studentrole = $DB->get_record('role', array('shortname' => 'student'));

        // Enroll Student1 in Course1.

        self::getDataGenerator()->enrol_user($student1->id,  $course1->id, $studentrole->id);

        $this->setUser($student1);

        $chats = mod_chat_external::get_chats_by_courses();

        // We need to execute the return values cleaning process to simulate the web service server.

        $chats = external_api::clean_returnvalue(mod_chat_external::get_chats_by_courses_returns(), $chats);

        $this->assertCount(1, $chats['chats']);

        $this->assertEquals('First Chat', $chats['chats'][0]['name']);

        // We see 12 fields.

        $this->assertCount(13, $chats['chats'][0]);

        // As Student you cannot see some chat properties like 'section'.

        $this->assertFalse(isset($chats['chats'][0]['section']));

        // Student1 is not enrolled in course2. The webservice will return a warning!

        $chats = mod_chat_external::get_chats_by_courses(array($course2->id));

        // We need to execute the return values cleaning process to simulate the web service server.

        $chats = external_api::clean_returnvalue(mod_chat_external::get_chats_by_courses_returns(), $chats);

        $this->assertCount(0, $chats['chats']);

        $this->assertEquals(1, $chats['warnings'][0]['warningcode']);

        // Now as admin.

        $this->setAdminUser();

        // As Admin we can see this chat.

        $chats = mod_chat_external::get_chats_by_courses(array($course2->id));

        // We need to execute the return values cleaning process to simulate the web service server.

        $chats = external_api::clean_returnvalue(mod_chat_external::get_chats_by_courses_returns(), $chats);

        $this->assertCount(1, $chats['chats']);

        $this->assertEquals('Second Chat', $chats['chats'][0]['name']);

        $this->assertEquals('header_js', $chats['chats'][0]['chatmethod']);

        // We see 17 fields.

        $this->assertCount(18, $chats['chats'][0]);

        // As an Admin you can see some chat properties like 'section'.

        $this->assertEquals(0, $chats['chats'][0]['section']);

        // Enrol student in the second course.

        self::getDataGenerator()->enrol_user($student1->id,  $course2->id, $studentrole->id);

        $this->setUser($student1);

        $chats = mod_chat_external::get_chats_by_courses();

        $chats = external_api::clean_returnvalue(mod_chat_external::get_chats_by_courses_returns(), $chats);

        $this->assertCount(2, $chats['chats']);

    }

    /**

     * Test get_sessions_empty_chat

     */

    public function test_get_sessions_empty_chat(): void {

        global $DB;

        $this->resetAfterTest(true);

        // Setup test data.

        $this->setAdminUser();

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

        $chat = $this->getDataGenerator()->create_module('chat', array('course' => $course->id));

        $result = mod_chat_external::get_sessions($chat->id);

        $result = external_api::clean_returnvalue(mod_chat_external::get_sessions_returns(), $result);

        $this->assertEmpty($result['sessions']);

        $this->assertEmpty($result['warnings']);

    }

    /**

     * Test get_sessions_no_permissions_for_student

     */

    public function test_get_sessions_no_permissions_for_student(): void {

        global $DB;

        $this->resetAfterTest(true);

        // Setup test data.

        $this->setAdminUser();

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

        // Disable logs for students.

        $chat = $this->getDataGenerator()->create_module('chat', array('course' => $course->id, 'studentlogs' => 0));

        // The admin has permissions to check logs.

        $result = mod_chat_external::get_sessions($chat->id);

        $result = external_api::clean_returnvalue(mod_chat_external::get_sessions_returns(), $result);

        $this->assertEmpty($result['sessions']);

        $this->assertEmpty($result['warnings']);

        $user = self::getDataGenerator()->create_user();

        $studentrole = $DB->get_record('role', array('shortname' => 'student'));

        unassign_capability('mod/chat:readlog', $studentrole->id);

        accesslib_clear_all_caches_for_unit_testing();

        $this->getDataGenerator()->enrol_user($user->id, $course->id, $studentrole->id);

        $this->setUser($user);

        // Students don't have permissions.

        $this->expectException('moodle_exception');

        mod_chat_external::get_sessions($chat->id);

    }

    /**

     * Test get_sessions_not_completed_session

     */

    public function test_get_sessions_not_completed_session(): void {

        global $DB;

        $this->resetAfterTest(true);

        // Setup test data.

        $this->setAdminUser();

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

        $chat = $this->getDataGenerator()->create_module('chat', array('course' => $course->id));

        $user = self::getDataGenerator()->create_user();

        $this->setUser($user);

        $studentrole = $DB->get_record('role', array('shortname' => 'student'));

        $this->getDataGenerator()->enrol_user($user->id, $course->id, $studentrole->id);

        // Start a chat and send just one message.

        $result = mod_chat_external::login_user($chat->id);

        $result = external_api::clean_returnvalue(mod_chat_external::login_user_returns(), $result);

        $chatsid = $result['chatsid'];

        $result = mod_chat_external::send_chat_message($chatsid, 'hello!');

        $result = external_api::clean_returnvalue(mod_chat_external::send_chat_message_returns(), $result);

        // Check session is not marked as completed so it is not returned.

        $result = mod_chat_external::get_sessions($chat->id);

        $result = external_api::clean_returnvalue(mod_chat_external::get_sessions_returns(), $result);

        $this->assertEmpty($result['sessions']);

        $this->assertEmpty($result['warnings']);

        // Pass showall parameter to indicate that we want not completed sessions.

        $result = mod_chat_external::get_sessions($chat->id, 0, true);

        $result = external_api::clean_returnvalue(mod_chat_external::get_sessions_returns(), $result);

        $this->assertCount(1, $result['sessions']); // One session.

        $this->assertFalse($result['sessions'][0]['iscomplete']); // Session not complete.

        $this->assertEmpty($result['warnings']);

    }

    /**

     * Test get_sessions_completed_session

     */

    public function test_get_sessions_completed_session(): void {

        global $DB;

        $this->resetAfterTest(true);

        // Setup test data.

        $this->setAdminUser();

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

        $chat = $this->getDataGenerator()->create_module('chat', array('course' => $course->id));

        $user1 = self::getDataGenerator()->create_user();

        $user2 = self::getDataGenerator()->create_user();

        $studentrole = $DB->get_record('role', array('shortname' => 'student'));

        $this->getDataGenerator()->enrol_user($user1->id, $course->id, $studentrole->id);

        $this->getDataGenerator()->enrol_user($user2->id, $course->id, $studentrole->id);

        // Start a chat and completeit.

        $this->setUser($user1);

        $result = mod_chat_external::login_user($chat->id);

        $result = external_api::clean_returnvalue(mod_chat_external::login_user_returns(), $result);

        $chatsid = $result['chatsid'];

        $result = mod_chat_external::send_chat_message($chatsid, 'hello!');

        $result = external_api::clean_returnvalue(mod_chat_external::send_chat_message_returns(), $result);

        $this->setUser($user2);

        $result = mod_chat_external::login_user($chat->id);

        $result = external_api::clean_returnvalue(mod_chat_external::login_user_returns(), $result);

        $chatsid = $result['chatsid'];

        $result = mod_chat_external::send_chat_message($chatsid, 'hello to you!');

        $result = external_api::clean_returnvalue(mod_chat_external::send_chat_message_returns(), $result);

        // Need to change first messages and last message times to mark the session completed.

        // We receive 4 messages (2 system messages that indicates user joined and the 2 messages sent by the users).

        $messages = $DB->get_records('chat_messages', array('chatid' => $chat->id));

        // Messages just one hour ago and 70 seconds between them.

        $timegap = 0;

        $timenow = time();

        foreach ($messages as $message) {

            $DB->set_field('chat_messages', 'timestamp', $timenow - HOURSECS + $timegap, array('id' => $message->id));

            $timegap += 70;

        }

        // Check session is completed.

        $result = mod_chat_external::get_sessions($chat->id);

        $result = external_api::clean_returnvalue(mod_chat_external::get_sessions_returns(), $result);

        $this->assertCount(1, $result['sessions']); // One session.

        $this->assertTrue($result['sessions'][0]['iscomplete']); // Session complete.

        // The session started when user1 entered the chat.

        $this->assertEquals($timenow - HOURSECS, $result['sessions'][0]['sessionstart']);

        $this->assertEmpty($result['warnings']);

    }

    /**

     * Test get_session_messages

     */

    public function test_get_session_messages(): void {

        global $DB;

        $this->resetAfterTest(true);

        // Setup test data.

        $this->setAdminUser();

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

        $chat = $this->getDataGenerator()->create_module('chat', array('course' => $course->id));

        $user1 = self::getDataGenerator()->create_user();

        $user2 = self::getDataGenerator()->create_user();

        $studentrole = $DB->get_record('role', array('shortname' => 'student'));

        $this->getDataGenerator()->enrol_user($user1->id, $course->id, $studentrole->id);

        $this->getDataGenerator()->enrol_user($user2->id, $course->id, $studentrole->id);

        // Start a chat and send a few messages.

        $this->setUser($user1);

        $result = mod_chat_external::login_user($chat->id);

        $result = external_api::clean_returnvalue(mod_chat_external::login_user_returns(), $result);

        $chatsid = $result['chatsid'];

        mod_chat_external::send_chat_message($chatsid, 'hello!');

        mod_chat_external::send_chat_message($chatsid, 'bye bye!');

        $this->setUser($user2);

        $result = mod_chat_external::login_user($chat->id);

        $result = external_api::clean_returnvalue(mod_chat_external::login_user_returns(), $result);

        $chatsid = $result['chatsid'];

        mod_chat_external::send_chat_message($chatsid, 'greetings!');

        // Pass showall parameter to indicate that we want not completed sessions.

        $result = mod_chat_external::get_sessions($chat->id, 0, true);

        $result = external_api::clean_returnvalue(mod_chat_external::get_sessions_returns(), $result);

        $this->assertCount(1, $result['sessions']); // One session.

        $sessionstart = $result['sessions'][0]['sessionstart'];

        $sessionend = $result['sessions'][0]['sessionend'];

        $result = mod_chat_external::get_session_messages($chat->id, $sessionstart, $sessionend);

        $result = external_api::clean_returnvalue(mod_chat_external::get_session_messages_returns(), $result);

        $this->assertCount(5, $result['messages']); // 2 system + 3 personal messages.

        $found = 0;

        foreach ($result['messages'] as $message) {

            if (!$message['issystem']) {

                if ($message['userid'] == $user1->id) {

                    if ($message['message'] != 'hello!') {

                        $this->assertEquals('bye bye!', $message['message']);

                        $found++;

                    }

                } else {

                    $this->assertEquals($user2->id, $message['userid']);

                    $this->assertEquals('greetings!', $message['message']);

                    $found++;

                }

            }

        }

        $this->assertEquals(2, $found);

    }

}