Testing · Senior · Question 9 of 75

Which signal suggests a test suite is too coupled to implementation?

✓Correct answer: Refactors that don't change behaviour regularly require changing many tests
2Tests run in under a minute
3Coverage is above 80%

Explanation

Tests should resist refactoring and be sensitive to behaviour changes; these two qualities are a good test of test quality.

Further reading

Kent C. Dodds: Testing Implementation Details ↗

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