klz-cables.com/tests/lexical.test.ts

import { describe, it, expect } from 'vitest';
import { lexicalToMarkdown } from '../lib/mdx-utils';

describe('lexicalToMarkdown', () => {
  it('should convert lexical AST to markdown', () => {
    const ast = {
      type: 'root',
      children: [
        {
          type: 'paragraph',
          children: [
            { type: 'text', text: 'Hello ' },
            { type: 'text', text: 'World', format: 1 }, // bold
          ],
        },
        {
          type: 'heading',
          tag: 'h2',
          children: [{ type: 'text', text: 'Title' }],
        },
      ],
    };

    const result = lexicalToMarkdown(ast);
    expect(result).toBe('Hello **World**\n\n## Title\n\n');
  });
});