    public function testGetBrandMasterCard()
    {
        $card = new CreditCard(array('number' => '5555555555554444'));
        $this->assertSame(CreditCard::BRAND_MASTERCARD, $card->getBrand());
        $card = new CreditCard(array('number' => '2221000010000015'));
        $this->assertSame(CreditCard::BRAND_MASTERCARD, $card->getBrand());
    }
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.