Phase 3 of 5 · about 25 min

Write test cases for cart and checkout

Your plan says the cart and checkout carry the most risk. Sara asks for five test cases the team can rerun before every release.

Use the brief as your oracle. Look at US-04 to US-08; every expected result should come from an AC.

Mix it up. Not five happy paths: include invalid input, boundaries and something mobile-specific.

One check per case. When it fails, everyone should know exactly what broke.