Jest + RTL Skill

Conventions

• setupTests.ts registers jest-dom; npm test = single non-watch run.
• Assert behavior, not implementation; minimal snapshots.
• Mock Apollo useQuery/useMutation and TanStack hooks at the hook boundary; MSW for the copilot.

Must-cover

• TaskCard renders status/priority per the severity map.
• Drag-drop reorder optimistic + rollback path.
• Auth: redirect when unauthenticated; silent refresh failure -> logout.

Rules

• Interaction tests where risk is high; empty/loading/error states asserted where async.