Testing · interview question
What is the healthiest performance judgment around boundary and failure tests?
Multiple choiceHardchapter-9-curatedpremiumtestingboundary-and-failure-tests
def test_rejects_zero_quantity() -> None:
with pytest.raises(ValueError):
OrderLine(sku="SKU-1", quantity=0)Answer and explanation
Correct answer
C. Measure before optimizing, then change the part that actually dominates cost instead of guessing from style alone.
Why
Premature optimization is usually weaker than targeted optimization backed by measurement.
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