Accessibility Test

Automated Testing Tools

Automated accessibility testing tools help catch issues early in the development process. While they can't replace manual testing, they provide a first line of defense against common accessibility problems.

ESLint Plugin: jsx-a11y

The jsx-a11y ESLint plugin provides static analysis for accessibility rules on JSX elements, catching issues before your code even runs.

Key Features

• Static AST checking for accessibility rules
• Integrated into our ESLint configuration
• Enforces best practices at development time

Implementation

// In your ESLint configuration
module.exports = {
  extends: [
    // ... other extensions
    'plugin:jsx-a11y/recommended', 
  ],
  plugins: [
    // ... other plugins
    'jsx-a11y', 
  ],
  rules: {
    // You can customize specific rules
    'jsx-a11y/aria-role': 'error',
    'jsx-a11y/img-redundant-alt': 'warn',
  }
};

Storybook: a11y-addon

For documented components, we use Storybook's accessibility addon to perform runtime accessibility testing.

Key Features

• Integrates axe-core for comprehensive testing
• Provides visual feedback in the Storybook UI
• Tests components in different states and variants

VS Code: axe Accessibility Linter

The axe Accessibility Linter extension for VS Code helps identify accessibility issues during development with real-time feedback.

Key Features

• Provides real-time feedback in your editor
• Highlights accessibility issues with detailed explanations
• Complements ESLint with more detailed guidance

Testing Tips

• Install the extension via VS Code marketplace
• Look for highlighted issues in your JSX/TSX files
• Hover over issues for detailed explanations and fix suggestions

Resource & References