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Defect Testing Definition

publish date: 2026/06/14 03:12:55.042387 UTC

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Which of the following are true about defect testing? Select all that apply.

Test cases can be deliberately obscure

Test cases are designed to expose defects

The goal is to find inputs that cause incorrect or undesirable behavior

Test cases must reflect how the system is normally used

Defect testing guarantees a defect-free system when all tests pass

Correct Answer

(1) Test cases are designed to expose defects

(2) Test cases can be deliberately obscure

(3) The goal is to find inputs that cause incorrect or undesirable behavior

Explanation

Defect testing aims to expose bugs using test cases that need not reflect normal usage - they can be deliberately obscure. It cannot guarantee a defect-free system; it can only show the presence of errors, not their absence.

Reference

Software Engineering, Ian Sommerville, 10th edition

Quizzes you can take where this question appears

Testing Goals and Validation vs. Defect Testing