This document outlines the test cases for validating the Checkout & Payment functionality. The focus is on ensuring that the checkout process integrates properly with payment systems, works as expected in regression scenarios, and ensures the entire process runs end-to-end successfully.
To verify the functionality of the checkout process, including payment integration and end-to-end user flow from adding items to the cart to confirming the payment.
| TC ID | Test Scenario | Test Steps | Expected Result | Priority |
|---|---|---|---|---|
| INT_CK_01 | Verify payment gateway integration | 1. Add items to the cart. 2. Proceed to checkout. 3. Select payment method (e.g., Credit Card). |
Payment gateway should be integrated and process payment correctly. | High |
| INT_CK_02 | Verify order details are passed to payment system | 1. Add items to the cart. 2. Proceed to checkout. 3. Review order details before payment. |
Order details should be sent correctly to the payment system. | High |
| INT_CK_03 | Verify payment confirmation from payment gateway | 1. Select payment method and complete payment. 2. Check payment gateway for confirmation. |
Payment gateway should confirm the payment successfully. | High |
| INT_CK_04 | Verify successful transaction after payment | 1. Complete the payment process. 2. Check order status in the user profile. |
Order should be marked as “paid” and show correct status. | High |
| INT_CK_05 | Verify error handling for failed payment | 1. Choose a payment method that will fail (e.g., invalid card). 2. Complete the payment process. |
User should receive an error message explaining payment failure. | High |
| INT_CK_06 | Verify payment system works with multiple currencies | 1. Add items to the cart. 2. Change the currency (e.g., USD to EUR). 3. Proceed to checkout. |
Payment should process correctly in the selected currency. | Medium |
| INT_CK_07 | Verify discount code integration with checkout | 1. Add items to cart. 2. Apply discount code. 3. Proceed to checkout and complete payment. |
Discount should be applied correctly during payment. | Medium |
| INT_CK_08 | Verify fraud detection during payment | 1. Add items to the cart. 2. Enter suspicious payment details. 3. Complete payment. |
Payment gateway should flag suspicious transactions. | High |
| INT_CK_09 | Verify payment method update functionality | 1. Add items to the cart. 2. Update payment method (e.g., change from Credit Card to PayPal). 3. Complete checkout. |
Payment method should update and complete checkout successfully. | Medium |
| INT_CK_10 | Verify payment retry mechanism | 1. Add items to the cart. 2. Attempt to complete payment with an error. 3. Retry payment. |
Payment should be retried successfully after failure. | High |
| TC ID | Test Scenario | Test Steps | Expected Result | Priority |
|---|---|---|---|---|
| REG_CK_01 | Verify payment gateway works after updates | 1. Update payment gateway settings (if applicable). 2. Complete a payment. |
Payment gateway should process payments successfully after update. | High |
| REG_CK_02 | Verify discount code functionality | 1. Add items to cart. 2. Apply a valid discount code. 3. Complete checkout. |
Discount should be applied correctly to the total. | Medium |
| REG_CK_03 | Verify item availability during checkout | 1. Add out-of-stock item to cart. 2. Attempt to checkout. |
User should not be able to proceed with out-of-stock items. | High |
| REG_CK_04 | Verify payment method selection works | 1. Add items to the cart. 2. Choose different payment methods (e.g., PayPal, Credit Card). |
User should be able to select and complete payment using all supported methods. | High |
| REG_CK_05 | Verify shipping details update after payment | 1. Add items to the cart. 2. Proceed to checkout and complete payment. 3. Check shipping details in order confirmation. |
Shipping details should update based on payment completion. | Medium |
| REG_CK_06 | Verify applied tax calculation during checkout | 1. Add items to cart. 2. Proceed to checkout. 3. Check applied taxes. |
Correct taxes should be applied based on location and items. | Medium |
| REG_CK_07 | Verify user can change payment method before finalizing checkout | 1. Add items to cart. 2. Choose a payment method. 3. Change payment method before finalizing. |
User should be able to change the payment method without issues. | High |
| REG_CK_08 | Verify order summary after coupon application | 1. Add items to cart. 2. Apply a coupon code. 3. Complete checkout. |
Coupon discount should be reflected in the order summary. | Medium |
| REG_CK_09 | Verify return policy displayed during checkout | 1. Add items to cart. 2. Proceed to checkout. 3. Check return policy link. |
Return policy should be visible during the checkout process. | Low |
| REG_CK_10 | Verify successful payment record update after retry | 1. Attempt payment, fail, then retry with a successful transaction. | Payment status should reflect a successful transaction after retry. | High |
| TC ID | Test Scenario | Test Steps | Expected Result | Priority |
|---|---|---|---|---|
| E2E_CK_01 | Complete checkout process with payment | 1. Add items to cart. 2. Proceed to checkout. 3. Complete payment. |
Order should be successfully placed and payment confirmed. | High |
| E2E_CK_02 | Verify order summary after checkout | 1. Add items to cart. 2. Proceed to checkout. 3. Complete payment. 4. View order summary. |
Order summary should match the items, prices, and shipping info. | High |
| E2E_CK_03 | Verify payment method transition | 1. Add items to cart. 2. Choose multiple payment methods. 3. Complete checkout with each method. |
Payment methods should transition smoothly, and payment should be processed. | High |
| E2E_CK_04 | Verify email confirmation after order placed | 1. Complete the checkout process. 2. Check email for order confirmation. |
User should receive an email with the order details and payment confirmation. | High |
| E2E_CK_05 | Verify full cycle of cart to checkout with coupon | 1. Add items to the cart. 2. Apply a coupon. 3. Proceed to checkout and complete payment. |
Coupon should be applied correctly, and order should be successfully placed. | Medium |
| E2E_CK_06 | Verify successful cart to checkout process on mobile | 1. Add items to the cart on mobile. 2. Proceed to checkout. 3. Complete payment on mobile. |
Checkout and payment process should work seamlessly on mobile. | High |
| E2E_CK_07 | Verify refund process after checkout | 1. Complete payment. 2. Initiate refund request. 3. Verify refund confirmation. |
Refund should be processed successfully after order cancellation. | Medium |
| E2E_CK_08 | Verify that order status is updated post-payment | 1. Add items to the cart. 2. Complete checkout. 3. Check the order status. |
Order status should be updated to “Paid” after payment completion. | High |
| E2E_CK_09 | Verify guest checkout and order confirmation | 1. Add items to cart as a guest. 2. Proceed to checkout. 3. Complete payment. |
Order should be successfully placed and confirmation received for guest checkout. | High |
| E2E_CK_10 | Verify no errors during repeated checkout with same items | 1. Add items to cart. 2. Complete payment. 3. Repeat checkout process for same items. |
The checkout process should not throw errors with repeated items. | Medium |
These test cases focus on verifying the checkout and payment functionality across different testing stages, including integration with payment gateways, regression testing for stable operations after updates, and end-to-end testing of the full transaction cycle from cart to payment confirmation.
Prepared By Pratik Joshi