test-quality-review

Test Quality Review

Audit whether your tests actually test anything. No signup required.

Prerequisites

• None. Pure Claude Code — reads the test files directly, no MCP required.

Trigger

• "Review the quality of my tests"
• "Are these tests actually testing anything?"
• "Audit my test suite for weak tests"

Workflow

1. Find the test files (*.test.*, *_test.go, test_*.py, *.spec.*).
2. Read each test and flag these quality smells:

Smells

No real assertion

• Test body calls code but never asserts (or only expect(true).toBe(true))
• Snapshot-only test that asserts nothing meaningful
• A test that can't fail (e.g. asserts a value against itself)

Weak assertions

• assert result / expect(x).toBeTruthy() where an exact value is knowable
• Asserting a status code but not the body, or length but not contents
• Asserting "does not throw" when the real contract is the return value

Disabled / hidden

• .skip, .only, xit, xdescribe, test.todo, commented-out tests
• A whole file describe.skip'd

Over-mocking

• Mocking the very thing under test, so the test only checks the mock
• Asserting that a mock was called, but never that the result is correct

Missing edge cases

• Only the happy path; no empty/null/error/boundary case for logic that has them
• Flaky-prone: hardcoded sleep, real network/time/random without control

1. For each finding give file:line, why it's weak, and the stronger assertion.

2. Output:

## Test Quality Review — 38 tests across 9 files

**4 no-assertion · 6 weak · 2 skipped · 3 missing edge cases**

### No real assertion
- `tests/test_checkout.py:40` — calls `process_order()` but never asserts.
  Add: assert the order status == "complete" and total is computed right.

### Weak assertions
- `cart.spec.ts:18` — `expect(res.status).toBe(200)` only.
  Also assert the cart body: item count, line totals, currency.

### Disabled
- `auth.spec.ts:5` — `describe.only(...)` — the rest of the file isn't running in CI!
- `payments_test.go:60` — `t.Skip("flaky")` — fix or delete; don't ship dark.

### Missing edge cases
- `validate.py` happy path only — add empty input, oversized input, and bad-type cases.

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