<?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/>.

/**
 * Tests for auth_plugin_userkey class.
 *
 * @package    auth_userkey
 * @copyright  2016 Dmitrii Metelkin (dmitriim@catalyst-au.net)
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

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

/**
 * Tests for auth_plugin_userkey class.
 *
 * @copyright  2016 Dmitrii Metelkin (dmitriim@catalyst-au.net)
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class auth_plugin_userkey_testcase extends advanced_testcase {
    /**
     * An instance of auth_plugin_userkey class.
     * @var auth_plugin_userkey
     */
    protected $auth;

    /**
     * Initial set up.
     */
    public function setUp() {
        global $CFG;
        require_once($CFG->dirroot . '/auth/userkey/auth.php');

        $this->auth = new auth_plugin_userkey();
        $this->resetAfterTest();
    }

    /**
     * Test that users can't login using login form.
     */
    public function test_users_can_not_login_using_login_form() {
        $user = new stdClass();
        $user->auth = 'userkey';
        $user->username = 'username';
        $user->password = 'correctpassword';

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

        $this->assertFalse($this->auth->user_login('username', 'correctpassword'));
        $this->assertFalse($this->auth->user_login('username', 'incorrectpassword'));
    }

    /**
     * Test that the plugin doesn't allow to store users passwords.
     */
    public function test_auth_plugin_does_not_allow_to_store_passwords() {
        $this->assertTrue($this->auth->prevent_local_passwords());
    }

    /**
     * Test that the plugin is external.
     */
    public function test_auth_plugin_is_external() {
        $this->assertFalse($this->auth->is_internal());
    }

    /**
     * Test that the plugin doesn't allow users to change the passwords.
     */
    public function test_auth_plugin_does_not_allow_to_change_passwords() {
        $this->assertFalse($this->auth->can_change_password());
    }
}