ITPEC FE Subject A April 2025 Question 37

Multiple-Condition Coverage — add test cases so every combination of individual conditions is tested.

Condition: A > 6 or B = 0 has two sub-conditions → 4 combinations needed:

• •A > 6 = T/F
• •B = 0 = T/F

Existing test cases (branch coverage):
- (A=4, B=1) → A>6: F, B=0: F
- (A=5, B=0) → A>6: F, B=0: T

Missing combinations: T/F and T/T

Check each option (existing + added):
- (a) adds (3,0) and (7,2) → F/T + T/F → still missing T/T
- (b) adds (3,2) and (8,0) → F/F + T/T → still missing T/F
- (c) adds (4,0) and (8,0) → F/T + T/T → still missing T/F
- (d) adds (7,0) and (8,2) → T/T + T/F → all 4 covered ✓

Answer: d)

Key rule: For multiple-condition coverage with N sub-conditions, enumerate all 2^N truth value combinations and ensure each is covered by at least one test case.

AI-generated — may contain errors