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MDL-65636 filter_multilang: add some basic unit tests

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This commit includes suggestions from Jun Pataleta on how to improve the
unit tests.
This commit is contained in:
Tim Hunt 2019-05-17 12:22:19 +01:00
parent 49f2581ef8
commit 173377e529
2 changed files with 144 additions and 2 deletions
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3
filter/multilang/filter.php
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@ -16,8 +16,7 @@
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* @package filter
* @subpackage multilang
* @package filter_multilang
* @copyright Gaetan Frenoy <gaetan@frenoy.net>
* @copyright 2004 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

143
filter/multilang/tests/filter_test.php Normal file
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<?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',
'<span lang="en" class="multilang">English</span><span lang="fr" class="multilang">Français</span>',
'en',
],
'Basic case FR' => [
'Français',
'<span lang="en" class="multilang">English</span><span lang="fr" class="multilang">Français</span>',
'fr',
],
'Reversed input order EN' => [
'English',
'<span lang="fr" class="multilang">Français</span><span class="multilang" lang="en">English</span>',
'en',
],
'Reversed input order EN' => [
'Français',
'<span lang="fr" class="multilang">Français</span><span class="multilang" lang="en">English</span>',
'fr',
],
'Fallback to parent when child not present' => [
'Français',
'<span lang="en" class="multilang">English</span><span lang="fr" class="multilang">Français</span>',
'fr_ca', ['fr_ca' => 'fr']
],
'Both parent and child language present, using child' => [
'Québécois',
'<span lang="fr_ca" class="multilang">Québécois</span>
<span lang="fr" class="multilang">Français</span>
<span lang="en" class="multilang">English</span>',
'fr_ca', ['fr_ca' => 'fr'],
],
'Both parent and child language present, using parent' => [
'Français',
'<span lang="fr_ca" class="multilang">Québécois</span>
<span lang="fr" class="multilang">Français</span>
<span lang="en" class="multilang">English</span>',
'fr', ['fr_ca' => 'fr'],
],
'Both parent and child language present - reverse order, using child' => [
'Québécois',
'<span lang="en" class="multilang">English</span>
<span lang="fr" class="multilang">Français</span>
<span lang="fr_ca" class="multilang">Québécois</span>',
'fr_ca', ['fr_ca' => 'fr'],
],
'Both parent and child language present - reverse order, using parent' => [
'Français',
'<span lang="en" class="multilang">English</span>
<span lang="fr" class="multilang">Français</span>
<span lang="fr_ca" class="multilang">Québécois</span>',
'fr', ['fr_ca' => 'fr'],
],
];
}
/**
* 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);
}
}