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Module 4: Software Testing

20212m

Which granularity level of testing checks the behavior of module cooperation?

(i) Unit testing
(ii) Integration testing
(iii) Acceptance testing
(iv) Regression testing

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Solution

Correct Answer: (ii) Integration testing

Explanation

Granularity Levels:

  • Unit testing - tests single module in isolation (with stubs/drivers)
  • Integration testing - tests cooperation / interfaces between modules (e.g., big-bang, top-down, bottom-up, sandwich)
  • System / Acceptance testing - tests whole system against SRS
  • Regression testing - re-tests after changes (not a granularity level)

Answer: (ii) Integration testing

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