testing

# Testing Write reliable tests with Bun units and Rstest integrations. ## Activation Conditions - Writing or modifying tests - Debugging test failures - Setting up mocks - Questions about test configuration ## Quick Reference | Action | Rule | |--------|------| | Choose test type | `test-unit-vs-integration.md` | | Mock modules | `test-mock-patterns.md` | | Test stores | `test-zustand-stores.md` | | Mock Connect APIs | `mock-transport.md` | | Skip UI rendering tests | `no-ui-rendering-tests.md` | ## Commands ```bash bun run test # All tests (CI default) bun run test:ci # Sequential for CI bun run test:unit # Unit tests only bun run test:integration # Integration tests only bun run test:unit:watch # Bun watch mode bun run test:watch # Integration watch mode bun run test:coverage # Coverage report ``` ## Key Points - `.test.ts` = Bun unit, `.test.tsx` / `.integration.test.ts` = Rstest integration (Happy DOM) - Always use `test-utils/test-utils.tsx` for React component tests - Test that features are fully wired: UI elements must connect to actual functionality ### Feature Completeness Testing When implementing interactive features (buttons, forms, etc.): - Verify event handlers call the correct functions with proper parameters - Test that AbortSignals, callbacks, and other "plumbing" are passed through - Don't assume UI presence means functionality works - test the connection ## When to Use This Skill - Writing `.test.ts` or `.test.tsx` files - Mocking modules, stores, or transports - Component behavior tests **NOT for:** Multi-page user workflows → use [e2e-tester](../e2e-tester/SKILL.md) ## Rules See `rules/` directory for detailed guidance.