public function testSetMobile()
{
$card = new CreditCard();
$this->assertEmpty($card->getMobile());
$this->assertEmpty($card->getBillingMobile());
$this->assertEmpty($card->getShippingMobile());
$value = uniqid();
$this->assertSame($card, $card->setMobile($value));
$this->assertSame($value, $card->getMobile());
$this->assertSame($value, $card->getBillingMobile());
$this->assertSame($value, $card->getShippingMobile());
$this->assertSame($card, $card->setMobile(null));
$this->assertEmpty($card->getMobile());
$this->assertEmpty($card->getBillingMobile());
$this->assertEmpty($card->getShippingMobile());
}