public function testGetParamters()
{
$card = new CreditCard(array('name' => 'Example Customer', 'number' => '1234', 'expiryMonth' => 6, 'expiryYear' => 2016));
$parameters = $card->getParameters();
$this->assertSame('Example', $parameters['billingFirstName']);
$this->assertSame('Customer', $parameters['billingLastName']);
$this->assertSame('1234', $parameters['number']);
$this->assertSame(6, $parameters['expiryMonth']);
$this->assertSame(2016, $parameters['expiryYear']);
}