What to test
Checkout flows fail when address data is too clean. Use realistic test addresses to exercise state, province, postal code, and phone-number branches before customers hit them.
Shipping address forms with required and optional fields
Tax and shipping rules by state, province, or region
International checkout paths with different postal code formats
Copy, edit, and validation behavior on mobile checkout screens
Recommended workflow
Start with the countries where you sell or plan to sell, then generate small batches for manual QA and larger batches for staging data.
Use country pages for local postal and phone formats
Export CSV or JSON for repeatable test cases
Pair generated addresses with test payment cards from your payment provider
Document expected tax and shipping outcomes for each region