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Prad Nukala
6406208b35
- 16 cross-shell utilities converted to sh/bash chezmoi executables: ai c2p cp-appid extract_agents fab gdc gh-sonr-org-migrate ghg-clone ghn gho git-summary launch_omp_livediff_overlay lc-elir mdcp mdp pj (ghg-clone not named ghg: unrelated cargo binary owns that name) - cwd/history helpers stay per-shell: yy c cd clip-last + ghg/ghn/gho cd-wrappers in bash/functions/ and zsh/functions/, loaded by rc files - fish keeps only shell-state functions; converted ones now hit PATH - cp-appid ignore gating moved to .local/bin path - dot_agents/skills: 82 skills materialized from dotstate storage so dot_claude skill symlinks resolve on fresh bootstrap; dotstate profile/symlinks.json released .agents/skills .bashrc .zshrc
2.2 KiB
2.2 KiB
Good and Bad Tests
Good Tests
Integration-style: Test through real interfaces, not mocks of internal parts.
// GOOD: Tests observable behavior
test("user can checkout with valid cart", async () => {
const cart = createCart();
cart.add(product);
const result = await checkout(cart, paymentMethod);
expect(result.status).toBe("confirmed");
});
Characteristics:
- Tests behavior users/callers care about
- Uses public API only
- Survives internal refactors
- Describes WHAT, not HOW
- One logical assertion per test
Bad Tests
Implementation-detail tests: Coupled to internal structure.
// BAD: Tests implementation details
test("checkout calls paymentService.process", async () => {
const mockPayment = jest.mock(paymentService);
await checkout(cart, payment);
expect(mockPayment.process).toHaveBeenCalledWith(cart.total);
});
Red flags:
- Mocking internal collaborators
- Testing private methods
- Asserting on call counts/order
- Test breaks when refactoring without behavior change
- Test name describes HOW not WHAT
- Verifying through external means instead of interface
// BAD: Bypasses interface to verify
test("createUser saves to database", async () => {
await createUser({ name: "Alice" });
const row = await db.query("SELECT * FROM users WHERE name = ?", ["Alice"]);
expect(row).toBeDefined();
});
// GOOD: Verifies through interface
test("createUser makes user retrievable", async () => {
const user = await createUser({ name: "Alice" });
const retrieved = await getUser(user.id);
expect(retrieved.name).toBe("Alice");
});
Tautological tests: Expected value restates the implementation, so the test passes by construction.
// BAD: Expected value is recomputed the way the code computes it
test("calculateTotal sums line items", () => {
const items = [{ price: 10 }, { price: 5 }];
const expected = items.reduce((sum, i) => sum + i.price, 0);
expect(calculateTotal(items)).toBe(expected);
});
// GOOD: Expected value is an independent, known literal
test("calculateTotal sums line items", () => {
expect(calculateTotal([{ price: 10 }, { price: 5 }])).toBe(15);
});