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<?php
namespace Faker\Test\Provider\pt_PT;
use Faker\Provider\pt_PT\Person;
use Faker\Test\TestCase;
/**
* @group legacy
*/
final class PersonTest extends TestCase
{
public function testTaxpayerIdentificationNumberIsValid()
{
$tin = $this->faker->taxpayerIdentificationNumber();
self::assertTrue(self::isValidTin($tin), $tin);
}
/**
* @see http://pt.wikipedia.org/wiki/N%C3%BAmero_de_identifica%C3%A7%C3%A3o_fiscal
*
* @param string $tin
*
* @return bool
*/
private static function isValidTin($tin)
{
$regex = '(([1,2,3,5,6,8]{1}[0-9]{8})|((45)|(70)|(71)|(72)|(77)|(79)|(90|(98|(99))))[0-9]{7})';
if (null === $tin || !is_numeric($tin) || !strlen($tin) == 9 || preg_match("/$regex/", $tin) !== 1) {
return false;
}
$n = str_split($tin);
// cd - Control Digit
$cd = ($n[0] * 9 + $n[1] * 8 + $n[2] * 7 + $n[3] * 6 + $n[4] * 5 + $n[5] * 4 + $n[6] * 3 + $n[7] * 2) % 11;
if ($cd === 0 || $cd === 1) {
$cd = 0;
} else {
$cd = 11 - $cd;
}
return $cd === (int) $n[8];
}
protected function getProviders(): iterable
{
yield new Person($this->faker);
}
}
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