Pop\I18n\I18n::createXmlFromText PHP Method

    public static function createXmlFromText($source, $output, $target = null)
    {
        if (!file_exists($source)) {
            throw new Exception('Error: The source file does not exist.');
        }
        if (!file_exists($output)) {
            throw new Exception('Error: The output file does not exist.');
        }
        $sourceLines = explode(PHP_EOL, file_get_contents($source));
        $outputLines = explode(PHP_EOL, file_get_contents($output));
        $targetDir = null !== $target ? $target : dirname($output);
        if (!file_exists($targetDir)) {
            throw new Exception('Error: The target directory does not exist.');
        }
        if (strpos($output, '/') !== false) {
            $lang = substr($output, strrpos($output, '/') + 1);
            $lang = substr($lang, 0, strpos($lang, '.'));
        } else {
            if (strpos($output, "\\") !== false) {
                $lang = substr($output, strrpos($output, "\\") + 1);
                $lang = substr($lang, 0, strpos($lang, '.'));
            } else {
                $lang = substr($output, 0, strpos($output, '.'));
            }
        }
        $xml = null;
        foreach ($outputLines as $key => $value) {
            if (!empty($value) && !empty($sourceLines[$key])) {
                $xml .= '        <text>' . PHP_EOL . '            <source>' . $sourceLines[$key] . '</source>' . PHP_EOL . '            <output>' . $value . '</output>' . PHP_EOL . '        </text>' . PHP_EOL;
            }
        }
        file_put_contents($targetDir . DIRECTORY_SEPARATOR . $lang . '.xml', $xml);
    }

 public function testCreateXmlFromTextNoTargetException()
 {
     $this->setExpectedException('Pop\\I18n\\Exception');
     I18n::createXmlFromText(__DIR__ . '/../tmp/bad.txt', __DIR__ . '/../tmp/de.txt', __DIR__ . '/../bad');
 }