ITPEC IP April 2024 Question 48
ITPEC IP April 2024 — Question 48 of 100
Examining a program's internal structure and verifying its paths and logic is white-box testing. The tester uses knowledge of source code or internal design to create cases that exercise statements, branches, conditions, loops, and data flows. This directly checks whether input is processed through the intended internal logic.
Answer (d)
Why not others:
- (a) System testing evaluates the integrated system against system requirements and is a test level, not specifically an internal-structure technique
- (b) Top-down testing is an integration order that begins with upper modules and uses stubs for lower ones
- (c) Black-box testing derives cases from inputs, outputs, and specifications without examining internal implementation
Key rule: White-box testing sees the code and covers its structure; black-box testing sees externally observable behavior and checks the specification.
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