/**
  * Convert matched bytes back to unicode string reference
  */
 public function testAllSequencesResolveUnicode()
 {
     foreach ($this->get_all() as $raw => $key) {
         $codes = twitter_api_utf8_array($raw);
         $ucode = twitter_api_unicode_implode($codes);
         $this->assertEquals($key, $ucode);
     }
 }
 public function testHexCodesCorrectLengthAndCase()
 {
     $text = twitter_api_unicode_implode(array(0x97, 0xa9, 0x2122, 0x1f004));
     $this->assertSame('0097-00a9-2122-1f004', $text);
 }