This document tracks all testing coverage for this component to ensure comprehensive validation and accessibility compliance.

**Last Updated**: 2025-10-19  
**Test Coverage**: 60%  
**Accessibility Score**: WCAG AA Compliant ✅

## 🧪 Test Summary

### Unit Tests (Vitest)

✅ **48 unit tests** implemented

- Component rendering, properties, events, and methods tested

### ♿ Accessibility Tests

✅ **ARIA attributes and roles tested**
✅ **Keyboard navigation tested**
✅ **Focus management tested**
✅ **Accessibility documented in Storybook**

### 🖱️ Interactive Tests (Cypress)

⚠️ **Interactive tests needed**

- User interactions (click, focus, keyboard)
- Form integration testing
- State transition validation

### 📱 Responsive & Visual Tests

✅ **Storybook stories** available

- 15 visual test scenarios
- Error state visually tested

### 🔧 E2E Integration Tests

⚠️ **E2E tests recommended** for complex workflows

## 📊 Detailed Accessibility Compliance

### WCAG 2.1 AA Requirements

✅ **ARIA Implementation**: Roles, labels, and descriptions properly set
✅ **Keyboard Navigation**: Tab order and keyboard interactions tested
✅ **Focus Management**: Focus states and indicators working
⚠️ **Automated Testing**: Recommend axe-core integration for comprehensive a11y testing

### Screen Reader Compatibility

- ⚠️ **Manual testing needed** with VoiceOver, NVDA, and JAWS
- Component should announce purpose, state, and interactions clearly
- Content should be logically structured for screen readers











## 📋 Detailed Unit Test Coverage

The following 26 unit tests ensure comprehensive validation of the component:

### Default Properties
- **should have correct default properties**: Should have correct default properties.
- **should set appropriate ARIA role by default**: Should set appropriate ARIA role by default.

### Variant Property
- **should render correct CSS class for each variant**: Should render correct CSS class for each variant.
- **should set alert role for urgent variants**: Should set alert role for urgent variants.
- **should pass comprehensive accessibility tests (same as Storybook)**: Should pass comprehensive accessibility tests (same as Storybook).
- **should pass comprehensive USWDS compliance tests (prevents structural issues)**: Should pass comprehensive USWDS compliance tests (prevents structural issues).

### Heading Property
- **should render heading when provided**: Verifies heading renders correctly when provided
- **should not render heading element when heading is empty**: Ensures component does not render heading element when heading is empty

### Slim Property
- **should add slim CSS class when slim is true**: Should add slim CSS class when slim is true.
- **should not add slim CSS class when slim is false**: Ensures component does not add slim CSS class when slim is false

### NoIcon Property
- **should add no-icon CSS class when noIcon is true**: Should add no-icon CSS class when noIcon is true.
- **should not add no-icon CSS class when noIcon is false**: Ensures component does not add no-icon CSS class when noIcon is false

### Slot Content
- **should render slotted content in alert text**: Should render slotted content in alert text.
- **should render complex HTML content via slots**: Should render complex HTML content via slots.
- **should not have duplicate content in the DOM**: Should not have duplicate content in the DOM.

### HTML Structure
- **should render correct USWDS HTML structure**: Should render correct USWDS HTML structure.
- **should not render dismiss button (USWDS compliance)**: Should not render dismiss button (USWDS compliance).

### CSS Classes
- **should apply all appropriate USWDS classes**: Should apply all appropriate USWDS classes.

### Accessibility
- **should have proper ARIA roles for different variants**: Should have proper ARIA roles for different variants.
- **should use semantic HTML elements**: Should use semantic HTML elements.

### Property Updates
- **should update DOM when properties change**: Should update DOM when properties change.

### Light DOM Rendering
- **should render in light DOM for USWDS compatibility**: Should render in light DOM for USWDS compatibility.

### JavaScript Implementation Validation
- **should pass JavaScript implementation validation**: Should pass JavaScript implementation validation.

### Accessibility Compliance (CRITICAL)
- **should pass comprehensive accessibility tests (same as Storybook)**: Should pass comprehensive accessibility tests (same as Storybook).
- **should maintain accessibility during dynamic state changes**: Should maintain accessibility during dynamic state changes.
- **should be accessible in real-world government use cases**: Ensures component meets accessibility standards and guidelines


## 🚨 Testing Gaps & Recommendations

### ⚠️ Coverage Below 70%

Current coverage is 60%. Consider adding:

- Interactive testing with Cypress

## 📝 Test Maintenance

- Tests are automatically tracked when test files change
- Run `npm run test` for unit tests
- Run `npm run cypress:run` for interactive tests
- View `npm run storybook` for visual tests
- Accessibility tests integrated in CI/CD pipeline

---

_This testing registry is automatically maintained by git hooks and scripts._  
_See `docs/TESTING_DOCUMENTATION.md` for automation details._