Free practice · multiple-choice · medium
Practice
Choose useful acceptance checks
Which checks form a useful acceptance set for the rule 'free standard shipping when a numeric subtotal is at least $75'? Select all that apply.
Acceptance-test design
Different tests should challenge different assumptions
- Below boundary
- Does the ordinary charge remain?
- Exact boundary
- Does 'at least' include equality?
- Above boundary
- Does qualification continue?
- Invalid state
- Does missing input stop safely?
A compact test set is stronger when it covers ordinary behavior, the exact boundary, nearby values, and the stated invalid-input rule.