nuzlocke-tracker/.beans/nuzlocke-tracker-ee9s--unit-tests-for-frontend-utilities-and-hooks.md

title, status, type, created_at, updated_at, parent

title	status	type	created_at	updated_at	parent
Unit tests for frontend utilities and hooks	draft	task	2026-02-10T09:33:38Z	2026-02-10T09:33:38Z	nuzlocke-tracker-yzpb

Write unit tests for the frontend utility functions and custom React hooks.

Checklist

• Test utils/formatEvolution.ts — evolution chain formatting logic
• Test utils/download.ts — file download utility
• Test hooks/useRuns.ts — run CRUD hook with mocked API
• Test hooks/useGames.ts — game fetching hook
• Test hooks/useEncounters.ts — encounter operations hook
• Test hooks/usePokemon.ts — pokemon data hook
• Test hooks/useGenlockes.ts — genlocke operations hook
• Test hooks/useBosses.ts — boss operations hook
• Test hooks/useStats.ts — stats fetching hook
• Test hooks/useAdmin.ts — admin operations hook

Notes

• Utility functions are pure functions — straightforward to test
• Hooks wrap React Query — test that they call the right API endpoints, handle loading/error states, and invalidate queries correctly
• Use @testing-library/react's renderHook for hook testing
• Mock the API client (from src/api/) rather than individual fetch calls