cve-dashboard/frontend/src/App.test.js

/**
 * Smoke test — verifies the test runner works and React renders.
 * The full App component imports ESM-only packages (react-markdown, mermaid)
 * that require special Jest transforms. Component-level tests should test
 * individual components in isolation rather than mounting the entire App.
 */
import React from 'react';
import { render } from '@testing-library/react';

// Minimal component render to verify the test environment works
test('React renders without crashing', () => {
  const { container } = render(<div data-testid="smoke">ok</div>);
  expect(container.textContent).toBe('ok');
});