css-component-testing
Guides CSS and layout tests for FigUI3 components. Use when validating component CSS, nested selectors, tokens, interaction states, computed styles, layout boxes, or visual regressions.
Datos de origen
- Repositorio
- rogie/figui3
- Última actividad en el origen
- 1 de junio de 2026 a las 17:43
- Idioma detectado de SKILL.md
- inglés
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- 70
- Forks
- 1
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Instrucciones de origen · Vista previa de solo lectura- name
- css-component-testing
- description
- Guides CSS and layout tests for FigUI3 components. Use when validating component CSS, nested selectors, tokens, interaction states, computed styles, layout boxes, or visual regressions.
# CSS Component Testing
Test public CSS behavior in a browser. Prefer computed styles and bounding boxes for stable assertions; use screenshots only for targeted visual regressions.
## What To Test
- Token-driven styles resolve through CSS custom properties.
- Public states work: hover, focus, selected, disabled, open, dragging.
- Layout dimensions and positioning stay within expected bounds.
- Light and dark `color-scheme` paths do not throw or hide content.
- Nested selectors compile through the existing build pipeline.
## Test Pattern
1. Mount the smallest fixture that exposes the CSS behavior.
2. Wait for custom elements and fonts/layout to settle.
3. Read `getComputedStyle`, `getBoundingClientRect`, or public attributes/classes.
4. Assert behavior, not implementation details, unless debugging a specific regression.
## Avoid
- Broad screenshot snapshots for every component.
- Assertions tied to browser antialiasing or exact subpixel layout unless necessary.
- Testing private class names when a public attribute/state can be asserted instead.
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