(discount/tax/etc)

One page

  • Check if login works- Place some orders;

-> Multiple products

-> With discounts

-> Let the transaction fail to see how Magento handles canceled orders

-> Try all combinations of payment methods & shipping methods

-> Try guest checkouts as well as logged-in checkouts

OneStepCheckout

  • All shipping methods available?- All payment methods available?

My/User Account

  • Login & logout- Are the correct My Accounts options showing?- Reorder an order- Add/edit address- Subscribe / unsubscribe for newsletter

CMS Backend

  • Place an order through the backend

  • Create a customer through the backend

  • Open all pages to see whether exceptions occur

  • Check all configuration options for all extensions in the backend

  • Check tax setting

  • Check transactional emails

  • Check attributes and attribute sets

  • Check adding and deleting products

  • Check creating and applying new discount coupons

  • Check adding & removing new users in admin panel