public function testImportUncompOrCompPublicKey()
 {
     $cnt = (getenv('BITCOINLIB_EXTENSIVE_TESTING') ?: 1) * 5;
     $val = FALSE;
     for ($i = 0; $i < $cnt; $i++) {
         $key = BitcoinLib::get_new_private_key();
         $unc = BitcoinLib::private_key_to_public_key($key, FALSE);
         $pubkey = BitcoinLib::private_key_to_public_key($key, $val);
         $val = $val == FALSE ? TRUE : FALSE;
         $this->assertTrue($unc == BitcoinLib::import_public_key($pubkey));
     }
 }