ApaiIO\Operations\CartAdd::setCartId PHP Метод

    public function setCartId($cartId)
    {
        $this->parameters['CartId'] = $cartId;
    }

 public function testGetCartId()
 {
     $cart = new CartAdd();
     $this->assertEquals(null, $cart->getCartId());
     $cart->setCartId('789');
     $this->assertEquals('789', $cart->getCartId());
 }