Payment Testing

Testing Solutions

Secure Transactions, Zero Revenue Loss

A failed payment is a lost customer. At ErikLabs, we provide specialized payment testing services to ensure every transaction) from credit cards and digital wallets to transfer methods and alternative payment channels) is processed securely, accurately, and consistently. We validate the entire financial flow, ensure compliance, handle gateway timeouts and error codes, guaranteeing that your revenue stream never stops.

Our payment testing approach balances rigorous compliance with a seamless checkout experience to build user trust.

Secure

Compliant

Multi-Currency

Transactional

Global

Reliable

End-to-End Financial Flows

We validate the entire lifecycle of a transaction. From authorization, capture, and void to refunds, chargebacks, partial payments, partial refunds, and recurring billing. We ensure every financial state is handled correctly, consistently, and traceably by your system. We also test critical workflows like multi-step transaction chains, fraud/risk scoring, and 3D Secure/3DS2 verifications.

Security & PCI Compliance

Payment systems are the most sensitive frontier for security. We conduct rigorous security testing against data breaches and compliance violations. We ensure sensitive card data is masked and hidden in logs, validate the accuracy of Tokenization/Encryption processes, enforce TLS/HTTPS usage, detect weak encryption, and verify secure input/output data structures to ensure full PCI-DSS compliance.

Gateway & Integration Testing

We test integrations with major payment providers (Stripe, PayPal, Adyen, iyzico, PAYTR, Klarna, Apple Pay, Google Pay, etc.). We validate POS/Virtual POS providers, Banking APIs, Open Banking, and PSD2 compliance. We verify that your system handles successful payments, declines, timeouts, retry and fallback mechanisms, and specific error messages presented to the user.

Multi-Currency & Localization

We validate global payment scenarios. Our tests cover dynamic currency conversion, regional tax calculations, and localized payment methods to support your international growth.

Are you ready to secure your revenue? Contact us today to discuss your payment and transaction testing needs.

Testing Solutions

Frequently Asked Question

Everything you need to know about Payment Systems Testing is here.

1. How do you test payments without using real money?

We use sandbox environments and test card data provided by payment gateways. For production verification, we use low-value real transactions that are immediately voided.

2. Do you support multi-currency testing?

Yes. We validate dynamic currency conversion, localized payment methods (like iDEAL or SEPA), and regional tax rules.

3. Can you automate payment flows?

Yes, but with caution. We automate standard checkout flows using mock data, while reserving manual exploratory testing for sensitive edge cases and fraud detection logic.

4. What happens if the payment gateway is down?

We test your system’s error handling to ensure users receive clear, helpful messages and that the app recovers gracefully during third-party outages.