Question 280
In a fictional application-delivery project, the team reports: A software update corrects a failed coupon rule, and testers rerun only that coupon scenario while a nearby discount-rule regression escapes. Which repeatable testing practice most directly reduces recurrence of this problem?
Explanation
Correct Answer
This safeguard specifically targets the contributing cause: Require both fix evidence and impact-driven regression selection. It addresses the principle (Confirmation testing checks a specific fix; regression testing checks for adverse side effects.) and can be assessed by: The original coupon case passes and previously working combination discounts remain correct.
Incorrect Answers
This preventive step mitigates a different project risk (syllabus section 2.2): A system integration test sends requests to a simulated tax provider that always returns success, so production error behavior remains untested. The targeted safeguard for the current case is: Require both fix evidence and impact-driven regression selection.
This preventive step mitigates a different project risk (syllabus section 2.2): An IoT controller is tested against its functional specifications but cannot restart cleanly after a power interruption. The targeted safeguard for the current case is: Require both fix evidence and impact-driven regression selection.
This preventive step mitigates a different project risk (syllabus section 2.1): A software team changes continuous deployment to daily releases but keeps a six-week feedback cycle for defects found in user acceptance testing. The targeted safeguard for the current case is: Require both fix evidence and impact-driven regression selection.