Cake\Localized\Validation\CzValidation::postal PHP Метод

    public static function postal($check)
    {
        $pattern = '/^[1-7]\\d{2} ?\\d{2}$/';
        return (bool) preg_match($pattern, $check);
    }

 /**
  * test the postal method of CzValidation
  *
  * @return void
  */
 public function testPostal()
 {
     $this->assertTrue(CzValidation::postal('123 45'));
     $this->assertFalse(CzValidation::postal('95616'));
 }