///<summary>
///</summary>
///<param name="payPalCredentials"></param>
///<exception cref="ArgumentNullException"></exception>
public PayPalNvpPaymentGateway(PayPalCredentials payPalCredentials)
{
if (payPalCredentials == null) throw new ArgumentNullException("payPalCredentials");
this.payPalCredentials = payPalCredentials;
}
public void Api_Exploration_Test()
{
var payPalCredentials = new PayPalCredentials("username", "password", "signature");
var payPalNvpPaymentGateway = new PayPalNvpPaymentGateway(payPalCredentials);
payPalNvpPaymentGateway.Purchase("REF", 100m, "USD", new PaymentCard()).ShouldNotBeNull();
}