public function test_EncodeDecode()
 {
     $filename = 'фівзїхыssAsd.ext';
     //utf-8
     $enc = $this->config->Encode($filename);
     // set codepage
     $dec = $this->config->Decode($enc);
     // utf-8
     $this->assertEquals($filename, $dec, 'filename encode/decode has failed');
 }