Cline rules

1---
2paths:
3  - "components/__tests__/**"
4  - "**/*.test.js"
5  - "jest.config.js"
6  - "test-setup.js"
7---
8 
9# Test Rules
10 
11## Jest
12- Keep tests focused on observable behavior and high-risk regressions.
13- Prefer stable selectors and assertions over implementation details.
14- `styled-jsx` appends generated class names, so avoid exact full-class assertions.
15- Mock browser APIs at the test boundary rather than changing production code for
16  the test harness.
17