A black-box testing technique that divides the inputs into groups that the program should handle in the same way (equivalence classes) and tests one representative value from each class. Both valid classes of accepted inputs and invalid classes of inputs that should cause an error are chosen.
Japanese name: 同値分割
Equivalence partitioning appears in 2 practice questions across 1 topic, including Software Development and Project Management.
Answer: C. 3
Equivalence partitioning divides the inputs into groups (equivalence classes) that the program should handle in the same way, and tests one representative value from each class. For this field there is one valid class (1 to 100) and two invalid classes (0 or less, and 101 or more), giving 3 in total. Choosing, for example, 50, −5 and 150 as representatives checks every class with three tests. The invalid inputs are split into a low side and a high side because the program handles them with separate checks (the lower-limit check and the upper-limit check).
Equivalence partitioning divides the inputs into groups (equivalence classes) that the program should handle in the same way, and tests one representative value from each class.
An input field accepts only integers; values from 1 to 100 …Black-box testing treats the test object as a box whose contents cannot be seen and creates test cases from the specification alone; its techniques include equivalence partitioning, boundary value analysis, cause-effect graphs and decision tables.
Which describes black-box testing?As an Amazon Associate I earn from qualifying purchases.
Black-box testing Boundary value analysis White-box testing Agile development Branch coverage CI/CD (continuous integration and continuous delivery) Critical path method (CPM) Earned value management (EVM) Scrum SLA (service level agreement)