Add a tested shipping rule to your e-commerce app
When you add or change a rule, Lovable writes and runs tests automatically to verify it works
When to use it
Your online bakery needs to offer free shipping for orders over $50 to boost average order value
Why it is worth it
Automated tests catch rule errors before customers encounter them, reducing bugs and support tickets
The prompt
For an online bakery selling breads and pastries, add a shipping rule: orders of $50 or more get free shipping, orders under $50 pay $7.99. On the checkout page, show the current shipping cost and how much more customers need to spend for free shipping. Write tests to check: 1) a $45 order shows $7.99 shipping, 2) a $50 order shows free shipping, 3) a $75 order shows free shipping. Run all tests and confirm they pass before you finish.
Swap the bakery with your app and change the dollar amounts to match your shipping rules
What you get
A new shipping rule in your app with automated tests confirming it works for different order totals
From docs.lovable.dev/changelog#lovable-writes-and-runs-tests-for-the-rules-you-change