Cake\Localized\Validation\TwValidation::nicn PHP Method

    public static function nicn($check)
    {
        return static::personId($check);
    }

 /**
  * test the nicn method of TwValidation
  *
  * @return void
  */
 public function testNicn()
 {
     $this->assertTrue(TwValidation::nicn('Y100000001'));
     $this->assertTrue(TwValidation::nicn('K164729166'));
     $this->assertTrue(TwValidation::nicn('U267825932'));
     $this->assertTrue(TwValidation::nicn('O257854301'));
     $this->assertTrue(TwValidation::nicn('Q175232776'));
 }