Valid Order:
- Ensure that clicking the “Place Order” button with all the required fields filled in correctly results in the order being successfully processed.
- Verify that a confirmation message is displayed to the user indicating the successful order placement.
- Check if the order is visible in the user’s order history or account.
Invalid Order:
- Test what happens when one or more required fields are left blank.
- Verify that appropriate error messages are displayed indicating the missing information.
- Ensure that the order is not processed and the user is prompted to enter the missing details.
Out-of-Stock Item:
- Add an item to the cart that is currently out of stock.
- Proceed to the checkout page.
- Click the “Place Order” button and verify that an error message is displayed indicating the item is out of stock.
- Ensure that the order is not processed until the item is back in stock or removed from the cart.
Payment Failure:
- Enter invalid or expired credit card details.
- Click the “Place Order” button and verify that an appropriate error message is displayed indicating the payment failure.
- Ensure that the order is not processed and the user is prompted to enter valid payment information.
Order Confirmation:
- Place an order successfully and verify that an order confirmation page is displayed.
- Check that the confirmation page contains relevant details such as order number, items purchased, total amount, and estimated delivery date.
- Confirm that the user receives an email or notification confirming the order details.
Boundary Cases:
- Test the “Place Order” button with the minimum and maximum allowed input values for fields such as quantity, price, and shipping address.
- Verify that the button functions correctly and the order is processed as expected.
Multiple Items:
- Add multiple items to the cart.
- Verify that all items are correctly displayed and included in the order when clicking the “Place Order” button.
- Ensure that the total amount, including taxes and shipping, is calculated accurately.
Discount Codes:
- Test the application of discount codes or coupons during the checkout process.
- Enter a valid discount code and verify that the discounted price is reflected in the order summary.
- Enter an invalid or expired discount code and verify that an appropriate error message is displayed.
Guest Checkout:
- Test the “Place Order” button functionality for guest users who do not have an account.
- Enter all the required information for a guest checkout, including shipping address and payment details.
- Verify that the order is processed successfully and a confirmation message is displayed.
Order Modification:
- Test if the “Place Order” button is disabled or unavailable after modifying the order details on the checkout page.
- Make changes to the items in the cart, shipping address, or payment details, and verify the button’s behavior.
Network Interruption:
- Simulate a network interruption or slow connection during the order placement process.
- Click the “Place Order” button and observe the system’s response.
- Verify that the system handles network issues gracefully and provides appropriate error messages or retries the request.
Accessibility Testing:
- Test the “Place Order” button using assistive technologies, such as screen readers or keyboard navigation.