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TranslationCompletenessTest.php
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TranslationCompletenessTest.php
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<?php
/**
* PHPMailer - language file tests.
*
* PHP version 5.5.
*
* @author Marcus Bointon <phpmailer@synchromedia.co.uk>
* @author Andy Prevost
* @copyright 2010 - 2020 Marcus Bointon
* @copyright 2004 - 2009 Andy Prevost
* @license https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
*/
namespace PHPMailer\Test\Language;
use PHPMailer\PHPMailer\PHPMailer;
use Yoast\PHPUnitPolyfills\TestCases\TestCase;
/**
* Check language files for missing or excess translations.
*
* @group languages
*
* @coversNothing
*/
final class TranslationCompletenessTest extends TestCase
{
/**
* Holds a PHPMailer instance.
*
* @var PHPMailer
*/
private $Mail;
/**
* Run before each test is started.
*/
protected function set_up()
{
$this->Mail = new PHPMailer();
}
/**
* Test language files for missing and excess translations.
* All languages are compared with English, which is built-in.
*/
public function testTranslations()
{
$this->Mail->setLanguage('en');
$definedStrings = $this->Mail->getTranslations();
$err = '';
foreach (new \DirectoryIterator(__DIR__ . '/../../language') as $fileInfo) {
if ($fileInfo->isDot()) {
continue;
}
$matches = [];
// Only look at language files, ignore anything else in there.
if (preg_match('/^phpmailer\.lang-([a-z_]{2,})\.php$/', $fileInfo->getFilename(), $matches)) {
$lang = $matches[1]; // Extract language code.
$PHPMAILER_LANG = []; // Language strings get put in here.
$lines = file($fileInfo->getPathname());
foreach ($lines as $line) {
// Translation file lines look like this:
// `$PHPMAILER_LANG['authenticate'] = 'SMTP-Fehler: Authentifizierung fehlgeschlagen.';`
// These files are parsed as text and not PHP so as to avoid the possibility of code injection.
$matches = [];
if (
preg_match(
'/^\$PHPMAILER_LANG\[\'([a-z\d_]+)\'\]\s*=\s*(["\'])(.+)*?\2;/',
$line,
$matches
)
) {
// Overwrite language-specific strings so we'll never have missing translation keys.
$PHPMAILER_LANG[$matches[1]] = (string)$matches[3];
}
}
}
include $fileInfo->getPathname(); // Get language strings.
$missing = array_diff(array_keys($definedStrings), array_keys($PHPMAILER_LANG));
$extra = array_diff(array_keys($PHPMAILER_LANG), array_keys($definedStrings));
if (!empty($missing)) {
$err .= "\nMissing translations in $lang: " . implode(', ', $missing);
}
if (!empty($extra)) {
$err .= "\nExtra translations in $lang: " . implode(', ', $extra);
}
}
// If we have no extra and no missing translations, $err will be empty.
self::assertEmpty($err, $err);
}
}