public function testLog()
 {
     $XmlToArray = new XmlToArray($this->_xml, $this->_maxDepth);
     $msg = 'text';
     $this->assertFalse($XmlToArray->log($msg));
     if (!class_exists('Object')) {
         require_once 'SofortObject.php';
         $msg = 'test';
         $this->assertEquals(array($msg, 2), $XmlToArray->log($msg));
         $type = 1;
         $this->assertEquals(array($msg, $type), $XmlToArray->log($msg, $type));
     }
 }