public void ValidateFailedPremiumPaymentGatewayPayment()
{
var paymentDetail = new PaymentDetail();
var premiumPaymentGateway = new PremiumPaymentGateway();
var expected = ResponseCodes.ERROR;
var result = premiumPaymentGateway.ProcessPayment(paymentDetail, 1);
var actual = result.Code;
Assert.Equal(expected, actual);
}
public void ValidateSuccessfulPremiumPaymentGatewayPayment()
{
var paymentDetail = new PaymentDetail();
var premiumPaymentGateway = new PremiumPaymentGateway();
var expected = ResponseCodes.OK;
//odd numbers fail, even(2,4,6) numbers succeed. I used 2 below
var result = premiumPaymentGateway.ProcessPayment(paymentDetail, 2);
var actual = result.Code;
Assert.Equal(expected, actual);
}
public bool ProcessPayment(Card card)
{
decimal amount = card.Amount;
if (amount < 20)
{
IExternalService externalService = new CheapPaymentGateway();
isPaymentProcessed = externalService.ProcessPayment();
}
else if (amount > 20 && amount <= 500)
{
IExternalService externalService = new ExpensivePaymentGateway();
if (externalService.IsAvailable)
{
isPaymentProcessed = externalService.ProcessPayment();
}
else
{
externalService = new CheapPaymentGateway();
while (externalService.RetryCount < 1)
{
isPaymentProcessed = externalService.ProcessPayment();
}
}
}
else if (amount > 500)
{
IExternalService externalService = new PremiumPaymentGateway();
while (externalService.RetryCount < 3)
{
isPaymentProcessed = externalService.ProcessPayment();
if (isPaymentProcessed)
{
break;
}
}
}
return(isPaymentProcessed);
}
public async Task <ActionResult <Payment> > PostPayment(Payment payment)
{
if (this.ModelState.IsValid)
{
_context.Payment.Add(payment);
PaymentState paymentState = new PaymentState {
Payment = payment, PaymentStatus = PaymentStatus.Pending
};
_context.PaymentState.Add(paymentState);
await _context.SaveChangesAsync();
if (payment.Amount <= 20)
{
ICheapPaymentGateway cheapPaymentGateway = new CheapPaymentGateway();
bool paymentProcessStatus = cheapPaymentGateway.ProcessPayment(payment);
if (paymentProcessStatus)
{
paymentState.PaymentStatus = PaymentStatus.Processed;
_context.Entry(paymentState).State = EntityState.Modified;
await _context.SaveChangesAsync();
}
else
{
paymentState.PaymentStatus = PaymentStatus.Failed;
_context.Entry(paymentState).State = EntityState.Modified;
await _context.SaveChangesAsync();
}
}
else if (payment.Amount > 20 && payment.Amount <= 500)
{
IExpensivePaymentGateway expensivePaymentGateway = new ExpensivePaymentGateway();
if (expensivePaymentGateway.isAvailable)
{
bool paymentProcessStatus = expensivePaymentGateway.ProcessPayment(payment);
if (paymentProcessStatus)
{
paymentState.PaymentStatus = PaymentStatus.Processed;
_context.Entry(paymentState).State = EntityState.Modified;
await _context.SaveChangesAsync();
}
else
{
paymentState.PaymentStatus = PaymentStatus.Failed;
_context.Entry(paymentState).State = EntityState.Modified;
await _context.SaveChangesAsync();
}
}
else
{
ICheapPaymentGateway cheapPaymentGateway = new CheapPaymentGateway();
bool paymentProcessStatus = cheapPaymentGateway.ProcessPayment(payment);
if (paymentProcessStatus)
{
paymentState.PaymentStatus = PaymentStatus.Processed;
_context.Entry(paymentState).State = EntityState.Modified;
await _context.SaveChangesAsync();
}
else
{
paymentState.PaymentStatus = PaymentStatus.Failed;
_context.Entry(paymentState).State = EntityState.Modified;
await _context.SaveChangesAsync();
}
}
}
else if (payment.Amount > 500)
{
IPremiumPaymentGateway premiumPaymentGateway = new PremiumPaymentGateway();
bool paymentProcessStatus = false;
for (int i = 0; i < 3; i++)
{
paymentProcessStatus = premiumPaymentGateway.ProcessPayment(payment);
if (paymentProcessStatus)
{
break;
}
}
if (paymentProcessStatus)
{
paymentState.PaymentStatus = PaymentStatus.Processed;
_context.Entry(paymentState).State = EntityState.Modified;
await _context.SaveChangesAsync();
}
else
{
paymentState.PaymentStatus = PaymentStatus.Failed;
_context.Entry(paymentState).State = EntityState.Modified;
await _context.SaveChangesAsync();
}
}
return(CreatedAtAction("GetPayment", new { id = payment.Id }, payment));
}
return(BadRequest(this.ModelState));
}