hanzo.ai/e2e/unit/verify-export.spec.ts

import { test, expect } from '@playwright/test'
import { mkdtempSync, mkdirSync, rmSync, writeFileSync } from 'node:fs'
import { tmpdir } from 'node:os'
import { join } from 'node:path'
import { extractStaticAssets, verifyLocalExport } from '../../scripts/verify-export.mjs'

test('extractStaticAssets reconstructs split Flight chunk names as well as script and link tags', () => {
  const html = [
    '<!DOCTYPE html><html><head>',
    '<link rel="stylesheet" href="/_next/static/chunks/05rbc.css?dpl=1"/>',
    '<script src="/_next/static/chunks/main-app.js" async=""></script>',
    '</head><body>',
    '<script>self.__next_f.push([1,"[\\"/_next/static/chunks/split-chunk."])</script><script>self.__next_f.push([1,"js\\",\\"/_next/static/media/font.woff2\\"]"])</script>',
    '</body></html>',
  ].join('')

  expect(extractStaticAssets(html).sort()).toEqual([
    '/_next/static/chunks/05rbc.css',
    '/_next/static/chunks/main-app.js',
    '/_next/static/chunks/split-chunk.js',
    '/_next/static/media/font.woff2',
  ])
})

test('verifyLocalExport catches missing chunks, zero-byte chunks, and missing entry pages', async () => {
  const dir = mkdtempSync(join(tmpdir(), 'hz-export-test-'))
  try {
    mkdirSync(join(dir, '_next', 'static', 'chunks'), { recursive: true })
    const validHtml =
      '<!DOCTYPE html><html><head><link rel="stylesheet" href="/_next/static/chunks/site.css"/><script src="/_next/static/chunks/app.js"></script></head><body>ok</body></html>'
    for (const page of ['index.html', '404.html', 'beta.html', 'pricing.html', 'login.html']) {
      writeFileSync(join(dir, page), validHtml)
    }
    writeFileSync(join(dir, '_next', 'static', 'chunks', 'app.js'), 'console.log(1)')
    writeFileSync(join(dir, '_next', 'static', 'chunks', 'site.css'), 'body{}')

    const clean = await verifyLocalExport(dir, { minHtmlPages: 5 })
    expect(clean.errors).toEqual([])
    expect(clean.assetCount).toBe(2)

    // Zero-byte CSS chunk fails pre-publish verification
    writeFileSync(join(dir, '_next', 'static', 'chunks', 'site.css'), '')
    const emptyCss = await verifyLocalExport(dir, { minHtmlPages: 5 })
    expect(emptyCss.errors.some((e) => e.includes('site.css') && e.includes('0 bytes'))).toBe(true)

    // Missing JS chunk referenced in Flight payload fails pre-publish verification
    writeFileSync(join(dir, '_next', 'static', 'chunks', 'site.css'), 'body{}')
    writeFileSync(
      join(dir, 'beta.html'),
      validHtml + '<script>self.__next_f.push([1,"\\"/_next/static/chunks/missing-lazy.js\\""])</script>',
    )
    const missingJs = await verifyLocalExport(dir, { minHtmlPages: 5 })
    expect(missingJs.errors.some((e) => e.includes('missing-lazy.js') && e.includes('missing from export'))).toBe(true)
  } finally {
    rmSync(dir, { recursive: true, force: true })
  }
})