Horde_Xml_Wbxml_Decoder::decodeToString PHP Method

    public function decodeToString($wbxml)
    {
        $this->_ch = new Horde_Xml_Wbxml_ContentHandler();
        $this->decode($wbxml);
        return $this->_ch->getOutput();
    }

 public function testDecode()
 {
     if (!is_executable('/usr/bin/wbxml2xml')) {
         $this->markTestSkipped('/usr/bin/wbxml2xml is required for comparison tests.');
     }
     $decoder = new Horde_Xml_Wbxml_Decoder();
     foreach (glob(__DIR__ . '/../../../../doc/Horde/Xml/Wbxml/examples/*.wbxml') as $file) {
         $xml_ref = shell_exec('/usr/bin/wbxml2xml' . ' -m 0 -o - "' . $file . '" 2>/dev/null');
         $xml_ref = preg_replace(array('/<\\?xml version=\\"1\\.0\\"\\?><!DOCTYPE [^>]*>/', '|<([^>]+)/>|'), array('', '<$1></$1>'), $xml_ref);
         $xml = $decoder->decodeToString(file_get_contents($file));
         if (is_string($xml)) {
             // Ignore <?xml and <!DOCTYPE stuff.
             $xml = preg_replace('/<\\?xml version=\\"1\\.0\\"\\?><!DOCTYPE [^>]*>/', '', $xml);
             // Handle different mimetypes.
             $xml = str_replace('application/vnd.syncml-devinf+wbxml', 'application/vnd.syncml-devinf+xml', $xml);
         }
         $this->assertEquals(Horde_String::lower($xml_ref), Horde_String::lower($xml));
     }
 }