sensei-prove-it
Test Proof
Evaluate what the tests prove and what they fail to prove.
Philosophy
Tests that pass are not the same as tests that verify the behavior.
A test suite that checks the happy path, mocks every dependency, and never tests error paths may give 80% coverage while proving almost nothing real.
The question is not: did the tests pass? The question is: what would have to be true about the code for these tests to catch a regression?
Ask the developer to answer that question before reviewing the tests yourself.
Questions to ask
What does each test actually verify?
- Is it testing the contract (inputs and outputs) or the implementation (internal calls)?
- Would this test catch the most likely bugs?
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