IsoCodes\Uknin::validate PHP Method

    public static function validate($uknin)
    {
        $regexpMustCheck = "/^(?!BG|GB|NK|KN|TN|NT|ZZ)[ABCEGHJ-PRSTW-Z][ABCEGHJ-NPRSTW-Z]\\d{6}[A-D]\$/";
        return (bool) preg_match($regexpMustCheck, $uknin);
    }

 /**
  * testInvalidUknin
  *
  * @param mixed $uknin
  *
  * @dataProvider getInvalidUknin
  *
  * return void
  */
 public function testInvalidUknin($uknin)
 {
     $this->assertFalse(Uknin::validate($uknin));
 }