Examples of Test cases for payment gateway.
1. Processing
| Test Case ID | Description | Test Steps | Expected Result |
| TC#001 | Verify successful processing of a valid credit card transaction. | 1. Enter credit card details. 2. Click on “Submit” | The system should process the transaction successfully, and the user should receive a confirmation message. |
| TC#002 | If invalid credit card number entered then verify error message | 1. Enter an invalid credit card number. 2. Click on “Submit” | display error message indicating the issue with the credit card number. |
| TC#003 | Verify error message for an expired credit card. | 1. Enter credit card details with an expired date. 2. Click on “Submit” or “Pay.” | display error message indicating that the credit card has expired. |
| TC#004 | Verify error message for an incorrect CVV. | 1. Enter credit card details with an incorrect CVV. 2. Click on “Submit” or “Pay.” | display error message indicating that the CVV is incorrect. |
| TC#005 | Verify error message for insufficient funds. | 1. Enter credit card details with insufficient funds. 2. Click on “Submit” or “Pay.” | display error message indicating that there are insufficient funds. |
2. Transaction Confirmation and Receipt
| Test Case ID | Description | Test Steps | Expected Result |
| TC#006 | Verify the display of a transaction confirmation page. | 1. Complete a successful transaction. 2. Verify the transaction confirmation page. | The system should display a confirmation page with details of the transaction. |
| TC#007 | Verify the generation and delivery of an email receipt. | 1. Complete a successful transaction. 2. Check the email associated with the transaction. | An email receipt should be sent containing details of the transaction. |
| TC#008 | Verify the availability of a downloadable transaction receipt. | 1. Complete a successful transaction. 2. Navigate to the user account or transaction history. | The system should provide an option to download a receipt in a printable format. |
3. Security and Compliance
| Test Case ID | Description | Test Steps | Expected Result |
| TC#009 | Verify the use of secure HTTPS connection during transactions. | 1. Open The system URL. 2. Initiate a transaction. | The system should use HTTPS, ensuring secure communication for sensitive data. |
| TC#010 | Verify compliance with PCI DSS standards. | 1. Review the documentation or contact support for PCI DSS compliance information. | The system should adhere to PCI DSS standards for secure handling of payment card information. |
4. User Account and Profile Integration
| Test Case ID | Description | Test Steps | Expected Result |
| TC#011 | Verify that user payment history is accurately recorded in the user account. | 1. Complete multiple transactions. 2. Check the user account for transaction history. | The user account should display a comprehensive and accurate transaction history. |
| TC#012 | Verify the ability to save multiple payment methods per user. | 1. Add multiple credit cards to the user account. 2. Initiate transactions with different cards. | The user should be able to store and use multiple payment methods associated with their account. |
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