MetonaEditor/e2e/smoke.cjs

#!/usr/bin/env node
/**
 * MetonaEditor 浏览器冒烟测试（Playwright + 本地静态服务）
 * 前置: npm run build（需 dist/metona-editor.js 存在）
 * 用法: npm run test:e2e
 */

const http = require('http');
const fs = require('fs');
const path = require('path');
const { chromium } = require('playwright');

const ROOT = path.resolve(__dirname, '..');
const MIME = {
  '.html': 'text/html; charset=utf-8',
  '.js': 'text/javascript',
  '.css': 'text/css',
  '.svg': 'image/svg+xml',
  '.png': 'image/png',
  '.mjs': 'text/javascript',
  '.cjs': 'text/javascript',
};

const server = http.createServer((req, res) => {
  let p = decodeURIComponent((req.url || '/').split('?')[0]);
  if (p === '/') p = '/e2e/host.html';
  const file = path.resolve(ROOT, '.' + p);
  if (!file.startsWith(ROOT) || !fs.existsSync(file) || !fs.statSync(file).isFile()) {
    res.writeHead(404); res.end('404 Not Found'); return;
  }
  res.writeHead(200, { 'Content-Type': MIME[path.extname(file)] || 'text/plain' });
  fs.createReadStream(file).pipe(res);
});

let passed = 0;
const check = (name, cond) => {
  if (!cond) throw new Error(`FAIL: ${name}`);
  passed++;
  console.log(`  ✓ ${name}`);
};

(async () => {
  await new Promise((r) => server.listen(0, '127.0.0.1', r));
  const port = server.address().port;
  console.log(`MetonaEditor E2E · http://127.0.0.1:${port}/`);

  const browser = await chromium.launch();
  const page = await browser.newPage();
  const errors = [];
  page.on('console', (m) => { if (m.type() === 'error') errors.push(m.text()); });
  page.on('pageerror', (e) => errors.push(String(e)));

  await page.goto(`http://127.0.0.1:${port}/`, { waitUntil: 'load' });

  // 1. 编辑器渲染
  await page.waitForSelector('.me-wrapper', { timeout: 10000 });
  check('编辑器 DOM 渲染', await page.locator('.me-wrapper').count() === 1);
  check('textarea 存在', await page.locator('.me-textarea').count() === 1);
  check('初始 value 写入', (await page.locator('.me-textarea').inputValue()).includes('# E2E Title'));

  // 2. 预览渲染
  const h1 = await page.locator('.me-preview h1').textContent();
  check('预览渲染 h1', h1 === 'E2E Title');
  check('预览渲染粗体', (await page.locator('.me-preview strong').count()) === 1);
  check('预览渲染下划线 <u>', (await page.locator('.me-preview u').count()) === 1);
  check('预览渲染表格', (await page.locator('.me-preview table').count()) === 1);

  // 3. 语法高亮
  check('代码块高亮 keyword', (await page.locator('.me-preview .me-hl-keyword').count()) > 0);
  check('代码块高亮 comment', (await page.locator('.me-preview .me-hl-comment').count()) > 0);

  // 4. 输入 → 预览实时更新
  await page.locator('.me-textarea').fill('# 输入测试\n\nhello **world**');
  await page.waitForTimeout(100);
  check('输入后预览更新 h1', (await page.locator('.me-preview h1').textContent()) === '输入测试');
  check('输入后预览更新 strong', (await page.locator('.me-preview strong').textContent()) === 'world');

  // 5. 工具栏命令（bold 包裹选区）
  await page.locator('.me-textarea').fill('select me');
  await page.locator('.me-textarea').evaluate((el) => { el.focus(); el.setSelectionRange(0, 9); });
  await page.locator('.me-btn[data-action="bold"]').click();
  check('工具栏 bold 命令', (await page.locator('.me-textarea').inputValue()) === '**select me**');

  // 6. 模式切换
  await page.locator('.me-btn[data-mode="preview"]').click();
  check('切换到 preview 模式', await page.locator('.me-body.me-mode-preview').count() === 1);
  await page.locator('.me-btn[data-mode="edit"]').click();
  check('切换到 edit 模式', await page.locator('.me-body.me-mode-edit').count() === 1);
  await page.locator('.me-btn[data-mode="split"]').click();
  check('切换到 split 模式', await page.locator('.me-body.me-mode-split').count() === 1);

  // 7. 主题切换
  await page.evaluate(() => window.__ed.setTheme('dark'));
  check('实例主题 dark', (await page.locator('.me-wrapper').getAttribute('data-md-theme')) === 'dark');

  // 8. 搜索插件（Ctrl+F）
  await page.locator('.me-textarea').press('Control+f');
  check('Ctrl+F 打开搜索面板', (await page.locator('.me-search').count()) === 1);
  await page.locator('.me-search-find').fill('select');
  await page.locator('.me-search-next').click();
  check('搜索面板查找选中', (await page.locator('.me-textarea').evaluate((el) => el.value.substring(el.selectionStart, el.selectionEnd))) === 'select');
  await page.keyboard.press('Escape');

  // 9. 统计状态栏
  check('状态栏字数统计', (await page.locator('.me-statusbar').textContent()).includes('字符'));

  // 10. 撤销（bold 后撤销回到初始内容）
  await page.locator('.me-textarea').press('Control+z');
  await page.waitForTimeout(50);
  check('Ctrl+Z 撤销', (await page.locator('.me-textarea').inputValue()).includes('E2E Title'));

  // 11. 实例 API 直调
  const stats = await page.evaluate(() => window.__ed.getStats());
  check('getStats 返回结构', typeof stats.characters === 'number' && typeof stats.words === 'number');
  const status = await page.evaluate(() => window.__ed.getStatus());
  check('getStatus 返回结构', status.mode === 'split' && status.theme === 'dark' && status.locale === 'zh-CN');

  await browser.close();
  server.close();

  if (errors.length) {
    console.error('\n页面错误:', errors);
    process.exit(1);
  }
  console.log(`\n全部通过: ${passed} 项断言 · 无页面错误`);
})().catch((e) => {
  console.error('\n' + (e && e.message ? e.message : e));
  try { server.close(); } catch (_) {}
  process.exit(1);
});