cross-feature testing 3

https://page-wiki.win/index.php/The_Critical_Role_of_a_QA_Tester_in_Modern_Web_Development

Cross-feature testing is when you check how two different parts of your app behave when they interact, like verifying that changing your shipping address in the checkout flow also updates the tax calculation on the payment page. I run these tests to catch weird shared-state bugs that individual feature tests miss, especially after a deployment. It's a bit tedious to set up all the combos, but it saves major headaches later.