Testing · interview question
Which change is best verified with a fast unit test rather than an integration test?
Multiple choiceEasychapter-10-curatedpremiumtestingunit-testing-with-junit
Answer and explanation
Correct answer
C. A pure tax-calculation rule with no database or network access
Why
Unit tests are ideal for deterministic domain logic that has no external I/O. They run quickly and isolate business rules without bringing in database, HTTP, or framework concerns.
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