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/>.

/**

 * Setting tests (all).

 *

 * @package   core_backup

 * @category  test

 * @copyright 2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}

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

 */

namespace core_backup;

use activity_backup_setting;

use backup_setting;

use backup_setting_exception;

use base_setting;

use base_setting_exception;

use course_backup_setting;

use section_backup_setting;

use setting_dependency;

use setting_dependency_disabledif_empty;

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

// Include all the needed stuff

global $CFG;

require_once($CFG->dirroot . '/backup/util/interfaces/checksumable.class.php');

require_once($CFG->dirroot . '/backup/backup.class.php');

require_once($CFG->dirroot . '/backup/util/settings/base_setting.class.php');

require_once($CFG->dirroot . '/backup/util/settings/backup_setting.class.php');

require_once($CFG->dirroot . '/backup/util/settings/setting_dependency.class.php');

require_once($CFG->dirroot . '/backup/util/settings/root/root_backup_setting.class.php');

require_once($CFG->dirroot . '/backup/util/settings/activity/activity_backup_setting.class.php');

require_once($CFG->dirroot . '/backup/util/settings/section/section_backup_setting.class.php');

require_once($CFG->dirroot . '/backup/util/settings/course/course_backup_setting.class.php');

require_once($CFG->dirroot . '/backup/util/ui/backup_ui_setting.class.php');

/**

 * Setting tests (all).

 *

 * @package   core_backup

 * @category  test

 * @copyright 2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}

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

 */

class settings_test extends \basic_testcase {

    /**

     * test base_setting class

     */

    public function test_base_setting(): void {

        // Instantiate base_setting and check everything

        $bs = new mock_base_setting('test', base_setting::IS_BOOLEAN);

        $this->assertTrue($bs instanceof base_setting);

        $this->assertEquals($bs->get_name(), 'test');

        $this->assertEquals($bs->get_vtype(), base_setting::IS_BOOLEAN);

        $this->assertTrue(is_null($bs->get_value()));

        $this->assertEquals($bs->get_visibility(), base_setting::VISIBLE);

        $this->assertEquals($bs->get_status(), base_setting::NOT_LOCKED);

        // Instantiate base_setting with explicit nulls

        $bs = new mock_base_setting('test', base_setting::IS_FILENAME, 'filename.txt', null, null);

        $this->assertEquals($bs->get_value() , 'filename.txt');

        $this->assertEquals($bs->get_visibility(), base_setting::VISIBLE);

        $this->assertEquals($bs->get_status(), base_setting::NOT_LOCKED);

        // Instantiate base_setting and set value, visibility and status

        $bs = new mock_base_setting('test', base_setting::IS_BOOLEAN);

        $bs->set_value(true);

        $this->assertNotEmpty($bs->get_value());

        $bs->set_visibility(base_setting::HIDDEN);

        $this->assertEquals($bs->get_visibility(), base_setting::HIDDEN);

        $bs->set_status(base_setting::LOCKED_BY_HIERARCHY);

        $this->assertEquals($bs->get_status(), base_setting::LOCKED_BY_HIERARCHY);

        // Instantiate with wrong vtype

        try {

            $bs = new mock_base_setting('test', 'one_wrong_type');

            $this->assertTrue(false, 'base_setting_exception expected');

        } catch (\Exception $e) {

            $this->assertTrue($e instanceof base_setting_exception);

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

        }

        // Instantiate with wrong integer value

        try {

            $bs = new mock_base_setting('test', base_setting::IS_INTEGER, 99.99);

            $this->assertTrue(false, 'base_setting_exception expected');

        } catch (\Exception $e) {

            $this->assertTrue($e instanceof base_setting_exception);

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

        }

        // Instantiate with wrong filename value

        try {

            $bs = new mock_base_setting('test', base_setting::IS_FILENAME, '../../filename.txt');

            $this->assertTrue(false, 'base_setting_exception expected');

        } catch (\Exception $e) {

            $this->assertTrue($e instanceof base_setting_exception);

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

        }

        // Instantiate with wrong visibility

        try {

            $bs = new mock_base_setting('test', base_setting::IS_BOOLEAN, null, 'one_wrong_visibility');

            $this->assertTrue(false, 'base_setting_exception expected');

        } catch (\Exception $e) {

            $this->assertTrue($e instanceof base_setting_exception);

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

        }

        // Instantiate with wrong status

        try {

            $bs = new mock_base_setting('test', base_setting::IS_BOOLEAN, null, null, 'one_wrong_status');

            $this->assertTrue(false, 'base_setting_exception expected');

        } catch (\Exception $e) {

            $this->assertTrue($e instanceof base_setting_exception);

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

        }

        // Instantiate base_setting and try to set wrong ui_type

        // We need a custom error handler to catch the type hinting error

        // that should return incorrect_object_passed

        $bs = new mock_base_setting('test', base_setting::IS_BOOLEAN);

        set_error_handler('\core_backup\backup_setting_error_handler', E_RECOVERABLE_ERROR);

        try {

            $bs->set_ui('one_wrong_ui_type', 'label', array(), array());

            $this->assertTrue(false, 'base_setting_exception expected');

        } catch (\Exception $e) {

            $this->assertTrue($e instanceof base_setting_exception);

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

        } catch (\TypeError $e) {

            // On PHP7+ we get a TypeError raised, lets check we've the right error.

            $this->assertMatchesRegularExpression('/must be (of type|an instance of) backup_setting_ui/', $e->getMessage());

        }

        restore_error_handler();

        // Instantiate base_setting and try to set wrong ui_label

        // We need a custom error handler to catch the type hinting error

        // that should return incorrect_object_passed

        $bs = new mock_base_setting('test', base_setting::IS_BOOLEAN);

        set_error_handler('\core_backup\backup_setting_error_handler', E_RECOVERABLE_ERROR);

        try {

            $bs->set_ui(base_setting::UI_HTML_CHECKBOX, 'one/wrong/label', array(), array());

            $this->assertTrue(false, 'base_setting_exception expected');

        } catch (\Exception $e) {

            $this->assertTrue($e instanceof base_setting_exception);

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

        } catch (\TypeError $e) {

            // On PHP7+ we get a TypeError raised, lets check we've the right error.

            $this->assertMatchesRegularExpression('/must be (of type|an instance of) backup_setting_ui/', $e->getMessage());

        }

        restore_error_handler();

        // Try to change value of locked setting by permission

        $bs = new mock_base_setting('test', base_setting::IS_BOOLEAN, null, null, base_setting::LOCKED_BY_PERMISSION);

        try {

            $bs->set_value(true);

            $this->assertTrue(false, 'base_setting_exception expected');

        } catch (\Exception $e) {

            $this->assertTrue($e instanceof base_setting_exception);

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

        }

        // Try to change value of locked setting by config

        $bs = new mock_base_setting('test', base_setting::IS_BOOLEAN, null, null, base_setting::LOCKED_BY_CONFIG);

        try {

            $bs->set_value(true);

            $this->assertTrue(false, 'base_setting_exception expected');

        } catch (\Exception $e) {

            $this->assertTrue($e instanceof base_setting_exception);

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

        }

        // Try to add same setting twice

        $bs1 = new mock_base_setting('test1', base_setting::IS_INTEGER, null);

        $bs2 = new mock_base_setting('test2', base_setting::IS_INTEGER, null);

        $bs1->add_dependency($bs2, null, array('value'=>0));

        try {

            $bs1->add_dependency($bs2);

            $this->assertTrue(false, 'base_setting_exception expected');

        } catch (\Exception $e) {

            $this->assertTrue($e instanceof base_setting_exception);

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

        }

        // Try to create one circular reference

        $bs1 = new mock_base_setting('test1', base_setting::IS_INTEGER, null);

        try {

            $bs1->add_dependency($bs1); // self

            $this->assertTrue(false, 'base_setting_exception expected');

        } catch (\Exception $e) {

            $this->assertTrue($e instanceof base_setting_exception);

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

            $this->assertTrue($e->a instanceof \stdClass);

            $this->assertEquals($e->a->main, 'test1');

            $this->assertEquals($e->a->alreadydependent, 'test1');

        }

        $bs1 = new mock_base_setting('test1', base_setting::IS_INTEGER, null);

        $bs2 = new mock_base_setting('test2', base_setting::IS_INTEGER, null);

        $bs3 = new mock_base_setting('test3', base_setting::IS_INTEGER, null);

        $bs4 = new mock_base_setting('test4', base_setting::IS_INTEGER, null);

        $bs1->add_dependency($bs2, null, array('value'=>0));

        $bs2->add_dependency($bs3, null, array('value'=>0));

        $bs3->add_dependency($bs4, null, array('value'=>0));

        try {

            $bs4->add_dependency($bs1, null, array('value'=>0));

            $this->assertTrue(false, 'base_setting_exception expected');

        } catch (\Exception $e) {

            $this->assertTrue($e instanceof base_setting_exception);

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

            $this->assertTrue($e->a instanceof \stdClass);

            $this->assertEquals($e->a->main, 'test1');

            $this->assertEquals($e->a->alreadydependent, 'test4');

        }

        $bs1 = new mock_base_setting('test1', base_setting::IS_INTEGER, null);

        $bs2 = new mock_base_setting('test2', base_setting::IS_INTEGER, null);

        $bs1->register_dependency(new setting_dependency_disabledif_empty($bs1, $bs2));

        try {

            // $bs1 is already dependent on $bs2 so this should fail.

            $bs2->register_dependency(new setting_dependency_disabledif_empty($bs2, $bs1));

            $this->assertTrue(false, 'base_setting_exception expected');

        } catch (\Exception $e) {

            $this->assertTrue($e instanceof base_setting_exception);

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

            $this->assertTrue($e->a instanceof \stdClass);

            $this->assertEquals($e->a->main, 'test1');

            $this->assertEquals($e->a->alreadydependent, 'test2');

        }

        // Create 3 settings and observe between them, last one must

        // automatically inherit all the settings defined in the main one

        $bs1 = new mock_base_setting('test1', base_setting::IS_INTEGER, null);

        $bs2 = new mock_base_setting('test2', base_setting::IS_INTEGER, null);

        $bs3 = new mock_base_setting('test3', base_setting::IS_INTEGER, null);

        $bs1->add_dependency($bs2, setting_dependency::DISABLED_NOT_EMPTY);

        $bs2->add_dependency($bs3, setting_dependency::DISABLED_NOT_EMPTY);

        // Check values are spreaded ok

        $bs1->set_value(123);

        $this->assertEquals($bs1->get_value(), 123);

        $this->assertEquals($bs2->get_value(), $bs1->get_value());

        $this->assertEquals($bs3->get_value(), $bs1->get_value());

        // Add one more setting and set value again

        $bs4 = new mock_base_setting('test4', base_setting::IS_INTEGER, null);

        $bs2->add_dependency($bs4, setting_dependency::DISABLED_NOT_EMPTY);

        $bs2->set_value(321);

        // The above change should change

        $this->assertEquals($bs1->get_value(), 123);

        $this->assertEquals($bs2->get_value(), 321);

        $this->assertEquals($bs3->get_value(), 321);

        $this->assertEquals($bs4->get_value(), 321);

        // Check visibility is spreaded ok

        $bs1->set_visibility(base_setting::HIDDEN);

        $this->assertEquals($bs2->get_visibility(), $bs1->get_visibility());

        $this->assertEquals($bs3->get_visibility(), $bs1->get_visibility());

        // Check status is spreaded ok

        $bs1->set_status(base_setting::LOCKED_BY_HIERARCHY);

        $this->assertEquals($bs2->get_status(), $bs1->get_status());

        $this->assertEquals($bs3->get_status(), $bs1->get_status());

        // Create 3 settings and observe between them, put them in one array,

        // force serialize/deserialize to check the observable pattern continues

        // working after that

        $bs1 = new mock_base_setting('test1', base_setting::IS_INTEGER, null);

        $bs2 = new mock_base_setting('test2', base_setting::IS_INTEGER, null);

        $bs3 = new mock_base_setting('test3', base_setting::IS_INTEGER, null);

        $bs1->add_dependency($bs2, null, array('value'=>0));

        $bs2->add_dependency($bs3, null, array('value'=>0));

        // Serialize

        $arr = array($bs1, $bs2, $bs3);

        $ser = base64_encode(serialize($arr));

        // Unserialize and copy to new objects

        $newarr = unserialize(base64_decode($ser));

        $ubs1 = $newarr[0];

        $ubs2 = $newarr[1];

        $ubs3 = $newarr[2];

        // Must continue being base settings

        $this->assertTrue($ubs1 instanceof base_setting);

        $this->assertTrue($ubs2 instanceof base_setting);

        $this->assertTrue($ubs3 instanceof base_setting);

        // Set parent setting

        $ubs1->set_value(1234);

        $ubs1->set_visibility(base_setting::HIDDEN);

        $ubs1->set_status(base_setting::LOCKED_BY_HIERARCHY);

        // Check changes have been spreaded

        $this->assertEquals($ubs2->get_visibility(), $ubs1->get_visibility());

        $this->assertEquals($ubs3->get_visibility(), $ubs1->get_visibility());

        $this->assertEquals($ubs2->get_status(), $ubs1->get_status());

        $this->assertEquals($ubs3->get_status(), $ubs1->get_status());

    }

    /**

     * Test that locked and unlocked states on dependent backup settings at the same level

     * correctly do not flow from the parent to the child setting when the setting is locked by permissions.

     */

    public function test_dependency_empty_locked_by_permission_child_is_not_unlocked(): void {

        // Check dependencies are working ok.

        $bs1 = new mock_backup_setting('test1', base_setting::IS_INTEGER, 2);

        $bs1->set_level(1);

        $bs2 = new mock_backup_setting('test2', base_setting::IS_INTEGER, 2);

        $bs2->set_level(1); // Same level *must* work.

        $bs1->add_dependency($bs2, setting_dependency::DISABLED_EMPTY);

        $bs1->set_status(base_setting::LOCKED_BY_PERMISSION);

        $this->assertEquals(base_setting::LOCKED_BY_HIERARCHY, $bs2->get_status());

        $this->assertEquals(base_setting::LOCKED_BY_PERMISSION, $bs1->get_status());

        $bs2->set_status(base_setting::LOCKED_BY_PERMISSION);

        $this->assertEquals(base_setting::LOCKED_BY_PERMISSION, $bs1->get_status());

        // Unlocking the parent should NOT unlock the child.

        $bs1->set_status(base_setting::NOT_LOCKED);

        $this->assertEquals(base_setting::LOCKED_BY_PERMISSION, $bs2->get_status());

    }

    /**

     * Test that locked and unlocked states on dependent backup settings at the same level

     * correctly do flow from the parent to the child setting when the setting is locked by config.

     */

    public function test_dependency_not_empty_locked_by_config_parent_is_unlocked(): void {

        $bs1 = new mock_backup_setting('test1', base_setting::IS_INTEGER, 0);

        $bs1->set_level(1);

        $bs2 = new mock_backup_setting('test2', base_setting::IS_INTEGER, 0);

        $bs2->set_level(1); // Same level *must* work.

        $bs1->add_dependency($bs2, setting_dependency::DISABLED_NOT_EMPTY);

        $bs1->set_status(base_setting::LOCKED_BY_CONFIG);

        $this->assertEquals(base_setting::LOCKED_BY_HIERARCHY, $bs2->get_status());

        $this->assertEquals(base_setting::LOCKED_BY_CONFIG, $bs1->get_status());

        // Unlocking the parent should unlock the child.

        $bs1->set_status(base_setting::NOT_LOCKED);

        $this->assertEquals(base_setting::NOT_LOCKED, $bs2->get_status());

    }

    /**

     * test backup_setting class

     */

    public function test_backup_setting(): void {

        // Instantiate backup_setting class and set level

        $bs = new mock_backup_setting('test', base_setting::IS_INTEGER, null);

        $bs->set_level(1);

        $this->assertEquals($bs->get_level(), 1);

        // Instantiate backup setting class and try to add one non backup_setting dependency

        set_error_handler('\core_backup\backup_setting_error_handler', E_RECOVERABLE_ERROR);

        $bs = new mock_backup_setting('test', base_setting::IS_INTEGER, null);

        try {

            $bs->add_dependency(new \stdClass());

            $this->assertTrue(false, 'backup_setting_exception expected');

        } catch (\Exception $e) {

            $this->assertTrue($e instanceof backup_setting_exception);

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

        } catch (\TypeError $e) {

            // On PHP7+ we get a TypeError raised, lets check we've the right error.

            $this->assertMatchesRegularExpression('/must be (an instance of|of type) base_setting/', $e->getMessage());

        }

        restore_error_handler();

        // Try to assing upper level dependency

        $bs1 = new mock_backup_setting('test1', base_setting::IS_INTEGER, null);

        $bs1->set_level(1);

        $bs2 = new mock_backup_setting('test2', base_setting::IS_INTEGER, null);

        $bs2->set_level(2);

        try {

            $bs2->add_dependency($bs1);

            $this->assertTrue(false, 'backup_setting_exception expected');

        } catch (\Exception $e) {

            $this->assertTrue($e instanceof backup_setting_exception);

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

        }

        // Check dependencies are working ok

        $bs1 = new mock_backup_setting('test1', base_setting::IS_INTEGER, null);

        $bs1->set_level(1);

        $bs2 = new mock_backup_setting('test2', base_setting::IS_INTEGER, null);

        $bs2->set_level(1); // Same level *must* work

        $bs1->add_dependency($bs2, setting_dependency::DISABLED_NOT_EMPTY);

        $bs1->set_value(123456);

        $this->assertEquals($bs2->get_value(), $bs1->get_value());

    }

    /**

     * test activity_backup_setting class

     */

    public function test_activity_backup_setting(): void {

        $bs = new mock_activity_backup_setting('test', base_setting::IS_INTEGER, null);

        $this->assertEquals($bs->get_level(), backup_setting::ACTIVITY_LEVEL);

        // Check checksum implementation is working

        $bs1 = new mock_activity_backup_setting('test', base_setting::IS_INTEGER, null);

        $bs1->set_value(123);

        $checksum = $bs1->calculate_checksum();

        $this->assertNotEmpty($checksum);

        $this->assertTrue($bs1->is_checksum_correct($checksum));

    }

    /**

     * test section_backup_setting class

     */

    public function test_section_backup_setting(): void {

        $bs = new mock_section_backup_setting('test', base_setting::IS_INTEGER, null);

        $this->assertEquals($bs->get_level(), backup_setting::SECTION_LEVEL);

        // Check checksum implementation is working

        $bs1 = new mock_section_backup_setting('test', base_setting::IS_INTEGER, null);

        $bs1->set_value(123);

        $checksum = $bs1->calculate_checksum();

        $this->assertNotEmpty($checksum);

        $this->assertTrue($bs1->is_checksum_correct($checksum));

    }

    /**

     * test course_backup_setting class

     */

    public function test_course_backup_setting(): void {

        $bs = new mock_course_backup_setting('test', base_setting::IS_INTEGER, null);

        $this->assertEquals($bs->get_level(), backup_setting::COURSE_LEVEL);

        // Check checksum implementation is working

        $bs1 = new mock_course_backup_setting('test', base_setting::IS_INTEGER, null);

        $bs1->set_value(123);

        $checksum = $bs1->calculate_checksum();

        $this->assertNotEmpty($checksum);

        $this->assertTrue($bs1->is_checksum_correct($checksum));

    }

}

/**

 * helper extended base_setting class that makes some methods public for testing

 */

class mock_base_setting extends base_setting {

    public function get_vtype() {

        return $this->vtype;

    }

    public function process_change($setting, $ctype, $oldv) {

        // Simply, inherit from the main object

        $this->set_value($setting->get_value());

        $this->set_visibility($setting->get_visibility());

        $this->set_status($setting->get_status());

    }

}

/**

 * helper extended backup_setting class that makes some methods public for testing

 */

class mock_backup_setting extends backup_setting {

    public function set_level($level) {

        $this->level = $level;

    }

    public function process_change($setting, $ctype, $oldv) {

        // Simply, inherit from the main object

        $this->set_value($setting->get_value());

        $this->set_visibility($setting->get_visibility());

        $this->set_status($setting->get_status());

    }

}

/**

 * helper extended activity_backup_setting class that makes some methods public for testing

 */

class mock_activity_backup_setting extends activity_backup_setting {

    public function process_change($setting, $ctype, $oldv) {

        // Do nothing

    }

}

/**

 * helper extended section_backup_setting class that makes some methods public for testing

 */

class mock_section_backup_setting extends section_backup_setting {

    public function process_change($setting, $ctype, $oldv) {

        // Do nothing

    }

}

/**

 * helper extended course_backup_setting class that makes some methods public for testing

 */

class mock_course_backup_setting extends course_backup_setting {

    public function process_change($setting, $ctype, $oldv) {

        // Do nothing

    }

}

/**

 * This error handler is used to convert errors to excpetions so that simepltest can

 * catch them.

 *

 * This is required in order to catch type hint mismatches that result in a error

 * being thrown. It should only ever be used to catch E_RECOVERABLE_ERROR's.

 *

 * It throws a backup_setting_exception with 'incorrect_object_passed'

 *

 * @param int $errno E_RECOVERABLE_ERROR

 * @param string $errstr

 * @param string $errfile

 * @param int $errline

 * @return null

 */

function backup_setting_error_handler($errno, $errstr, $errfile, $errline) {

    if ($errno !== E_RECOVERABLE_ERROR) {

        // Currently we only want to deal with type hinting errors

        return false;

    }

    throw new backup_setting_exception('incorrect_object_passed');

}