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Code Editor : filter_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/>.

/**
 * Unit tests.
 *
 * @package filter_multilang
 * @category test
 * @copyright 2019 The Open University
 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

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

/**
 * Tests for filter_multilang.
 *
 * @copyright 2019 The Open University
 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class filter_multilang_filter_testcase extends advanced_testcase {

public function setUp() {
        parent::setUp();

$this->resetAfterTest(true);

// Enable glossary filter at top level.
        filter_set_global_state('multilang', TEXTFILTER_ON);
    }

/**
     * Setup parent language relationship.
     *
     * @param string $child the child language, e.g. 'fr_ca'.
     * @param string $parent the parent language, e.g. 'fr'.
     */
    protected function setup_parent_language(string $child, string $parent) {
        global $CFG;

$langfolder = $CFG->dataroot . '/lang/' . $child;
 check_dir_exists($langfolder);
 $langconfig = "<?php\n\$string['parentlanguage'] = '$parent';";
 file_put_contents($langfolder . '/langconfig.php', $langconfig);
 }

/**
 * Data provider for multi-language filtering tests.
 */
 public function multilang_testcases() {
 return [
 'Basic case EN' => [
 'English',
 'EnglishFrançais',
 'en',
 ],
 'Basic case FR' => [
 'Français',
 'EnglishFrançais',
 'fr',
 ],
 'Reversed input order EN' => [
 'English',
 'FrançaisEnglish',
 'en',
 ],
 'Reversed input order EN' => [
 'Français',
 'FrançaisEnglish',
 'fr',
 ],
 'Fallback to parent when child not present' => [
 'Français',
 'EnglishFrançais',
 'fr_ca', ['fr_ca' => 'fr']
 ],
 'Both parent and child language present, using child' => [
 'Québécois',
 'Québécois
 Français
 English',
 'fr_ca', ['fr_ca' => 'fr'],
 ],
 'Both parent and child language present, using parent' => [
 'Français',
 'Québécois
 Français
 English',
 'fr', ['fr_ca' => 'fr'],
 ],
 'Both parent and child language present - reverse order, using child' => [
 'Québécois',
 'English
 Français
 Québécois',
 'fr_ca', ['fr_ca' => 'fr'],
 ],
 'Both parent and child language present - reverse order, using parent' => [
 'Français',
 'English
 Français
 Québécois',
 'fr', ['fr_ca' => 'fr'],
 ],
 'Fallback to parent when child not present when parent is en' => [
 'English',
 'DeutschEnglish',
 'en_us',
 ],
 ];
 }

/**
     * Tests the filtering of multi-language strings.
     *
     * @dataProvider multilang_testcases
     *
     * @param string $expectedoutput The expected filter output.
     * @param string $input the input that is filtererd.
     * @param string $targetlang the laguage to set as the current languge .
     * @param array $parentlangs Array child lang => parent lang. E.g. ['es_co' => 'es', 'es_mx' => 'es'].
     */
    public function test_filtering($expectedoutput, $input, $targetlang, $parentlangs = []) {
        global $SESSION;
        $SESSION->forcelang = $targetlang;

foreach ($parentlangs as $child => $parent) {
            $this->setup_parent_language($child, $parent);
        }

$filtered = format_text($input, FORMAT_HTML, array('context' => context_system::instance()));
        $this->assertEquals($expectedoutput, $filtered);
    }
}

${this.title}

Code Editor : filter_test.php