Testing · interview question
A bug appears around tmp_path and file tests. What is the strongest first debugging move?
Multiple choiceHardchapter-9-curatedpremiumtestingtmp-path-and-file-tests
def test_writes_report(tmp_path) -> None:
target = tmp_path / "report.json"
target.write_text("{}", encoding="utf-8")
assert target.exists()Answer and explanation
Correct answer
A. Trace one concrete example, inspect the state transitions, and compare them to the intended rule before rewriting anything.
Why
That approach is reliable because it creates evidence. Tests that depend on one developer's local files are brittle and misleading.
Test yourself on Testing
A free test with instant, explained results. No account needed.
More Testing questions
- What does a strong engineer do when reasoning through reliability stories code?
- Which naming or modeling choice is strongest for fixtures?
- What production risk should you worry about most if tmp_path and file tests is handled lazily?
- What is the healthiest performance judgment around monkeypatching and mocks?
- What production risk should you worry about most if monkeypatching and mocks is handled lazily?
- Another engineer will maintain this code later. What choice helps the most around reliability stories?