feat(nitro, vite): use native module (#252)

Co-authored-by: Daniel Roe <daniel@roe.dev>

.github/workflows/test-compat.yml

@@ -43,7 +43,4 @@ jobs:
         run: yarn build
 
       - name: Test
-        run: TEST_COMPAT=1 yarn jest --ci
-
-      # - name: Coverage
-      #   uses: codecov/codecov-action@v1
+        run: TEST_COMPAT=1 yarn test:presets

.github/workflows/test.yml

@@ -44,10 +44,7 @@ jobs:
         run: yarn build
 
       - name: Test
-        run: yarn jest --ci
-
-      # - name: Coverage
-      #   uses: codecov/codecov-action@v1
+        run: yarn test:presets
 
       - name: Release Edge
         if: github.event_name == 'push'

docs/content/6.deployment/platforms/pm2.md

@@ -2,9 +2,9 @@
 
 > How to deploy Nuxt to a Node.js host with Nuxt Nitro
 
- - Support for ultra-minimal SSR build
- - Zero millisecond cold start
- - More configuration required
+- Support for ultra-minimal SSR build
+- Zero millisecond cold start
+- More configuration required
 
 ## Setup
 
@@ -28,7 +28,7 @@ This `.output` folder can be deployed to your Node.js host and the server can be
 To start the server in production mode, run:
 
 ```bash
-node .output/server
+node .output/server/index.mjs
 ```
 
 For example, using `pm2`:

docs/content/6.deployment/presets/server.md

@@ -1,8 +1,8 @@
 # Node.js server
 
- - Default preset if none is specified or auto-detected
- - Loads only the chunks required to render the request for optimal cold start timing
- - Useful for debugging
+- Default preset if none is specified or auto-detected
+- Loads only the chunks required to render the request for optimal cold start timing
+- Useful for debugging
 
 ### Entrypoint
 
@@ -11,7 +11,7 @@ With `{ preset: 'server' }` the result will be an entrypoint that launches a rea
 #### Example
 
 ```bash
-node .output/server
+node .output/server/index.mjs
 # > Load chunks/nitro/server (10.405923ms)
 # > Cold Start (26.289817ms)
 # Listening on http://localhost:3000

examples/async-data-setup/package.json

@@ -7,6 +7,6 @@
   "scripts": {
     "dev": "nu dev",
     "build": "nu build",
-    "start": "node .output/server"
+    "start": "node .output/server/index.mjs"
   }
 }

examples/async-data/package.json

@@ -7,6 +7,6 @@
   "scripts": {
     "dev": "nu dev",
     "build": "nu build",
-    "start": "node .output/server"
+    "start": "node .output/server/index.mjs"
   }
 }

examples/hello-world/package.json

@@ -7,6 +7,6 @@
   "scripts": {
     "dev": "nu dev",
     "build": "nu build",
-    "start": "node .output/server"
+    "start": "node .output/server/index.mjs"
   }
 }

examples/pages/package.json

@@ -7,6 +7,6 @@
   "scripts": {
     "dev": "nu dev",
     "build": "nu build",
-    "start": "node .output/server"
+    "start": "node .output/server/index.mjs"
   }
 }

examples/with-components/package.json

@@ -7,6 +7,6 @@
   "scripts": {
     "dev": "nu dev",
     "build": "nu build",
-    "start": "node .output/server"
+    "start": "node .output/server/index.mjs"
   }
 }

examples/with-layouts/package.json

@@ -7,6 +7,6 @@
   "scripts": {
     "dev": "nu dev",
     "build": "nu build",
-    "start": "node .output/server"
+    "start": "node .output/server/index.mjs"
   }
 }

examples/with-vite/package.json

@@ -7,6 +7,6 @@
   "scripts": {
     "dev": "nu dev",
     "build": "nu build",
-    "start": "node .output/server"
+    "start": "node .output/server/index.mjs"
   }
 }

examples/with-vue-content-loader/package.json

@@ -8,6 +8,6 @@
   "scripts": {
     "dev": "nu dev",
     "build": "nu build",
-    "start": "node .output/server"
+    "start": "node .output/server/index.mjs"
   }
 }

jest.config.js

@@ -1,9 +0,0 @@
-module.exports = {
-  testEnvironment: 'node',
-  transform: {
-    '\\.[jt]sx?$': './scripts/jest-transform.mjs'
-  },
-  testPathIgnorePatterns: [
-    '.output/.*'
-  ]
-}

package.json

@@ -16,8 +16,9 @@
     "example": "yarn workspace example-$0 dev",
     "example:build": "yarn workspace example-$0 build",
     "lint": "eslint --ext .vue,.ts,.js .",
-    "test": "yarn lint && jest",
-    "test:compat": "TEST_COMPAT=1 jest",
+    "test": "yarn lint && yarn test:presets",
+    "test:presets": "mocha test/presets/*.mjs",
+    "test:compat": "TEST_COMPAT=1 yarn test:presets",
     "version": "yarn && git add yarn.lock"
   },
   "resolutions": {
@@ -26,17 +27,23 @@
   "devDependencies": {
     "@nuxtjs/eslint-config": "^6.0.1",
     "@nuxtjs/eslint-config-typescript": "^6.0.1",
-    "@types/jest": "^26.0.24",
+    "@types/chai": "^4.2.21",
+    "@types/jsdom": "^16",
+    "@types/mocha": "^8.2.3",
     "@types/node": "^14.17.5",
     "@types/object-hash": "^2",
+    "chai": "^4.3.4",
     "esbuild": "^0.12.15",
     "eslint": "^7.30.0",
     "eslint-plugin-jsdoc": "^35.4.3",
+    "execa": "^5.1.1",
     "globby": "^11.0.4",
-    "jest": "^27.0.6",
     "jiti": "^1.10.1",
+    "jsdom": "^16.6.0",
     "lerna": "^4.0.0",
+    "mocha": "^9.0.2",
     "object-hash": "^2.2.0",
+    "ts-mocha": "^8.0.0",
     "typescript": "^4.3.5",
     "unbuild": "^0.3.2",
     "upath": "^2.0.1"

packages/app/src/_templates/plugins.mjs

@@ -1,10 +1,8 @@
-import head from '#app/plugins/head'
 import preload from '#app/plugins/preload.server'
 
 <%= utils.importSources(app.plugins.map(p => p.src)) %>
 
 const commonPlugins = [
-  head,
   <%= app.plugins.filter(p => !p.mode || p.mode === 'all').map(p => utils.importName(p.src)).join(',\n  ') %>
 ]
 

packages/nitro/src/build.ts

@@ -47,10 +47,10 @@ export async function build (nitroContext: NitroContext) {
   // Compile html template
   const htmlSrc = resolve(nitroContext._nuxt.buildDir, `views/${{ 2: 'app', 3: 'document' }[2]}.template.html`)
   const htmlTemplate = { src: htmlSrc, contents: '', dst: '', compiled: '' }
-  htmlTemplate.dst = htmlTemplate.src.replace(/.html$/, '.js').replace('app.', 'document.')
+  htmlTemplate.dst = htmlTemplate.src.replace(/.html$/, '.mjs').replace('app.', 'document.')
   htmlTemplate.contents = await readFile(htmlTemplate.src, 'utf-8')
   await nitroContext._internal.hooks.callHook('nitro:document', htmlTemplate)
-  htmlTemplate.compiled = 'module.exports = ' + serializeTemplate(htmlTemplate.contents)
+  htmlTemplate.compiled = 'export default ' + serializeTemplate(htmlTemplate.contents)
   await writeFile(htmlTemplate.dst, htmlTemplate.compiled)
 
   nitroContext.rollupConfig = getRollupConfig(nitroContext)

packages/nitro/src/compat.ts

@@ -1,6 +1,6 @@
 import fetch from 'node-fetch'
 import { resolve } from 'upath'
-import { resolveModule } from '@nuxt/kit'
+import { readFile, writeFile } from 'fs-extra'
 import { build, generate, prepare } from './build'
 import { getNitroContext, NitroContext } from './context'
 import { createDevServer } from './server/dev'
@@ -55,16 +55,25 @@ export default function nuxt2CompatModule () {
 
   // Nitro client plugin
   this.addPlugin({
-    fileName: 'nitro.client.js',
-    src: resolve(nitroContext._internal.runtimeDir, 'app/nitro.client.js')
+    fileName: 'nitro.client.mjs',
+    src: resolve(nitroContext._internal.runtimeDir, 'app/nitro.client.mjs')
   })
 
   // Fix module resolution
   nuxt.hook('webpack:config', (configs) => {
     for (const config of configs) {
-      if (config.name === 'client') {
-        config.resolve.alias.ufo = resolveModule('ufo/dist/index.mjs')
-      }
+      config.resolve.alias.ufo = 'ufo/dist/index.mjs'
+      config.resolve.alias.ohmyfetch = 'ohmyfetch/dist/index.mjs'
+    }
+  })
+
+  // Generate mjs resources
+  nuxt.hook('build:compiled', async ({ name }) => {
+    if (name === 'server') {
+      await writeFile(resolve(nuxt.options.buildDir, 'dist/server/server.mjs'), 'export { default } from "./server.js"', 'utf8')
+    } else if (name === 'client') {
+      const manifest = await readFile(resolve(nuxt.options.buildDir, 'dist/server/client.manifest.json'), 'utf8')
+      await writeFile(resolve(nuxt.options.buildDir, 'dist/server/client.manifest.mjs'), 'export default ' + manifest, 'utf8')
     }
   })
 

packages/nitro/src/presets/browser.ts

@@ -22,7 +22,7 @@ if ('serviceWorker' in navigator) {
 <head>
   <meta charset="utf-8">
   <link rel="prefetch" href="${routerBase}sw.js">
-  <link rel="prefetch" href="${routerBase}_server/index.js">
+  <link rel="prefetch" href="${routerBase}_server/index.mjs">
   <script>
   async function register () {
     const registration = await navigator.serviceWorker.register('${routerBase}sw.js')
@@ -65,7 +65,7 @@ if ('serviceWorker' in navigator) {
         tmpl.compiled = tmpl.compiled.replace('</body>', script + '</body>')
       },
       async 'nitro:compiled' ({ output }: NitroContext) {
-        await writeFile(resolve(output.publicDir, 'sw.js'), `self.importScripts('${input._nuxt.routerBase}_server/index.js');`)
+        await writeFile(resolve(output.publicDir, 'sw.js'), `self.importScripts('${input._nuxt.routerBase}_server/index.mjs');`)
 
         // Temp fix
         await writeFile(resolve(output.publicDir, 'index.html'), html)

packages/nitro/src/presets/cloudflare.ts

@@ -11,7 +11,7 @@ export const cloudflare: NitroPreset = extendPreset(worker, {
   ],
   hooks: {
     async 'nitro:compiled' ({ output, _nuxt }: NitroContext) {
-      await writeFile(resolve(output.dir, 'package.json'), JSON.stringify({ private: true, main: './server/index.js' }, null, 2))
+      await writeFile(resolve(output.dir, 'package.json'), JSON.stringify({ private: true, main: './server/index.mjs' }, null, 2))
       await writeFile(resolve(output.dir, 'package-lock.json'), JSON.stringify({ lockfileVersion: 1 }, null, 2))
       let inDir = prettyPath(_nuxt.rootDir)
       if (inDir) {

packages/nitro/src/presets/server.ts

@@ -8,7 +8,7 @@ export const server: NitroPreset = extendPreset(node, {
   serveStatic: true,
   hooks: {
     'nitro:compiled' ({ output }: NitroContext) {
-      consola.success('Ready to run', hl('node ' + prettyPath(output.serverDir)))
+      consola.success('Ready to run', hl('node ' + prettyPath(output.serverDir) + '/index.mjs'))
     }
   }
 })

packages/nitro/src/rollup/config.ts

@@ -60,7 +60,7 @@ export const getRollupConfig = (nitroContext: NitroContext) => {
   delete env.alias['node-fetch'] // FIX ME
 
   if (nitroContext.sourceMap) {
-    env.polyfill.push('source-map-support/register')
+    env.polyfill.push('source-map-support/register.js')
   }
 
   const buildServerDir = join(nitroContext._nuxt.buildDir, 'dist/server')
@@ -70,7 +70,7 @@ export const getRollupConfig = (nitroContext: NitroContext) => {
     input: resolvePath(nitroContext, nitroContext.entry),
     output: {
       dir: nitroContext.output.serverDir,
-      entryFileNames: 'index.js',
+      entryFileNames: 'index.mjs',
       chunkFileNames (chunkInfo) {
         let prefix = ''
         const modules = Object.keys(chunkInfo.modules)
@@ -88,10 +88,10 @@ export const getRollupConfig = (nitroContext: NitroContext) => {
         } else if (lastModule.includes('assets')) {
           prefix = 'assets'
         }
-        return join('chunks', prefix, '[name].js')
+        return join('chunks', prefix, '[name].mjs')
       },
       inlineDynamicImports: nitroContext.inlineDynamicImports,
-      format: 'cjs',
+      format: 'esm',
       exports: 'auto',
       intro: '',
       outro: '',
@@ -232,6 +232,7 @@ export const getRollupConfig = (nitroContext: NitroContext) => {
         '~~',
         '@@/',
         'virtual:',
+        'ohmyfetch', // TODO: Webpack externals forces default import!
         nitroContext._internal.runtimeDir,
         nitroContext._nuxt.srcDir,
         nitroContext._nuxt.rootDir,
@@ -241,7 +242,8 @@ export const getRollupConfig = (nitroContext: NitroContext) => {
       ],
       traceOptions: {
         base: '/',
-        processCwd: nitroContext._nuxt.rootDir
+        processCwd: nitroContext._nuxt.rootDir,
+        exportsOnly: true
       }
     })))
   }
@@ -252,7 +254,13 @@ export const getRollupConfig = (nitroContext: NitroContext) => {
     preferBuiltins: true,
     rootDir: nitroContext._nuxt.rootDir,
     moduleDirectories,
-    mainFields: ['main'] // Force resolve CJS (@vue/runtime-core ssrUtils)
+    // 'module' is intentionally not supported because of externals
+    mainFields: ['main'],
+    exportConditions: [
+      'default',
+      'module',
+      'import'
+    ]
   }))
 
   // Automatically mock unresolved externals

packages/nitro/src/rollup/plugins/automock.ts

@@ -1,5 +1,4 @@
 import consola from 'consola'
-import { normalize } from 'upath'
 
 const internalRegex = /^\.|\?|\.[mc]?js$|.ts$|.json$/
 
@@ -10,7 +9,7 @@ export function autoMock () {
       if (src && !internalRegex.test(src)) {
         consola.warn('Auto mock external ', src)
         return {
-          id: normalize(require.resolve('unenv/runtime/mock/proxy'))
+          id: 'unenv/runtime/mock/proxy'
         }
       }
       return null

packages/nitro/src/rollup/plugins/dynamic-require.ts

@@ -103,16 +103,20 @@ export default function dynamicRequire(id) {
 
 function TMPL_LAZY ({ chunks }: TemplateContext) {
   return `
-function dynamicWebpackModule(id, getChunk) {
+function dynamicWebpackModule(id, getChunk, ids) {
   return function (module, exports, require) {
     const r = getChunk()
-    if (r instanceof Promise) {
+    if (typeof r.then === 'function') {
       module.exports = r.then(r => {
         const realModule = { exports: {}, require };
         r.modules[id](realModule, realModule.exports, realModule.require);
+        for (const _id of ids) {
+          if (_id === id) continue;
+          r.modules[_id](realModule, realModule.exports, realModule.require);
+        }
         return realModule.exports;
       });
-    } else {
+    } else if (r && typeof r.modules[id] === 'function') {
       r.modules[id](module, exports, require);
     }
   };
@@ -121,7 +125,7 @@ function dynamicWebpackModule(id, getChunk) {
 function webpackChunk (meta, getChunk) {
  const chunk = { ...meta, modules: {} };
  for (const id of meta.moduleIds) {
-   chunk.modules[id] = dynamicWebpackModule(id, getChunk);
+   chunk.modules[id] = dynamicWebpackModule(id, getChunk, meta.moduleIds);
  };
  return chunk;
 };

packages/nitro/src/rollup/plugins/externals.ts

@@ -1,4 +1,4 @@
-import { resolve, dirname, normalize } from 'upath'
+import { resolve, dirname } from 'upath'
 import { copyFile, mkdirp } from 'fs-extra'
 import { nodeFileTrace, NodeFileTraceOptions } from '@vercel/nft'
 import type { Plugin } from 'rollup'
@@ -13,11 +13,11 @@ export interface NodeExternalsOptions {
 }
 
 export function externals (opts: NodeExternalsOptions): Plugin {
-  const resolvedExternals = new Set<string>()
+  const trackedExternals = new Set<string>()
 
   return {
     name: 'node-externals',
-    resolveId (id) {
+    async resolveId (id, importer, options) {
       // Internals
       if (!id || id.startsWith('\x00') || id.includes('?') || id.startsWith('#')) {
         return null
@@ -44,11 +44,10 @@ export function externals (opts: NodeExternalsOptions): Plugin {
         }
       }
 
-      // Try to resolve for nft
+      // Track externals
       if (opts.trace !== false) {
-        let _resolvedId = _id
-        try { _resolvedId = normalize(require.resolve(_resolvedId, { paths: opts.moduleDirectories })) } catch (_err) { }
-        resolvedExternals.add(_resolvedId)
+        const resolved = await this.resolve(id, importer, { ...options, skipSelf: true }).then(r => r.id)
+        trackedExternals.add(resolved)
       }
 
       return {
@@ -58,14 +57,25 @@ export function externals (opts: NodeExternalsOptions): Plugin {
     },
     async buildEnd () {
       if (opts.trace !== false) {
-        const tracedFiles = await nodeFileTrace(Array.from(resolvedExternals), opts.traceOptions)
+        const tracedFiles = await nodeFileTrace(Array.from(trackedExternals), opts.traceOptions)
           .then(r => r.fileList.map(f => resolve(opts.traceOptions.base, f)))
+          .then(r => r.filter(file => file.includes('node_modules')))
+
+        // // Find all unique package names
+        const pkgs = new Set<string>()
+        for (const file of tracedFiles) {
+          // eslint-disable-next-line @typescript-eslint/no-unused-vars
+          const [_, baseDir, pkgName, _importPath] = /(.+\/node_modules\/)([^/]+)\/(.*)/.exec(file)
+          pkgs.add(resolve(baseDir, pkgName, 'package.json'))
+        }
+
+        for (const pkg of pkgs) {
+          if (!tracedFiles.includes(pkg)) {
+            tracedFiles.push(pkg)
+          }
+        }
 
         await Promise.all(tracedFiles.map(async (file) => {
-          if (!file.includes('node_modules')) {
-            return
-          }
-          // TODO: Minify package.json
           const src = resolve(opts.traceOptions.base, file)
           const dst = resolve(opts.outDir, 'node_modules', file.split('node_modules/').pop())
           await mkdirp(dirname(dst))

packages/nitro/src/rollup/plugins/static.ts

@@ -32,8 +32,12 @@ export function staticAssets (context: NitroContext) {
     '#static': `
 import { promises } from 'fs'
 import { resolve } from 'path'
+import { dirname } from 'path'
+import { fileURLToPath } from 'url'
 import assets from '#static-assets'
 
+const mainDir = dirname(fileURLToPath(globalThis.entryURL))
+
 export function readAsset (id) {
   return promises.readFile(resolve(mainDir, getAsset(id).path))
 }
@@ -50,7 +54,7 @@ export function dirnames (): Plugin {
     name: 'dirnames',
     renderChunk (code, chunk) {
       return {
-        code: code + (chunk.isEntry ? 'globalThis.mainDir="undefined"!=typeof __dirname?__dirname:require.main.filename;' : ''),
+        code: code + (chunk.isEntry ? 'globalThis.entryURL = import.meta.url' : ''),
         map: null
       }
     }

packages/nitro/src/runtime/app/render.ts

@@ -2,7 +2,7 @@ import { createRenderer } from 'vue-bundle-renderer'
 import devalue from '@nuxt/devalue'
 import { runtimeConfig } from './config'
 // @ts-ignore
-import htmlTemplate from '#build/views/document.template.js'
+import htmlTemplate from '#build/views/document.template.mjs'
 
 function _interopDefault (e) { return e && typeof e === 'object' && 'default' in e ? e.default : e }
 
@@ -17,9 +17,9 @@ async function loadRenderer () {
   // @ts-ignore
   const { renderToString } = await import('#nitro-renderer')
   // @ts-ignore
-  const createApp = await import('#build/dist/server/server')
+  const createApp = await import('#build/dist/server/server.mjs')
   // @ts-ignore
-  const clientManifest = await import('#build/dist/server/client.manifest.json')
+  const clientManifest = await import('#build/dist/server/client.manifest.mjs')
   _renderer = createRenderer(_interopDefault(createApp), {
     clientManifest: _interopDefault(clientManifest),
     renderToString

packages/nitro/src/server/dev.ts

@@ -14,7 +14,7 @@ import type { NitroContext } from '../context'
 
 export function createDevServer (nitroContext: NitroContext) {
   // Worker
-  const workerEntry = resolve(nitroContext.output.dir, nitroContext.output.serverDir, 'index.js')
+  const workerEntry = resolve(nitroContext.output.dir, nitroContext.output.serverDir, 'index.mjs')
   let pendingWorker: Worker | null
   let activeWorker: Worker
   let workerAddress: string | null

packages/nitro/src/server/middleware.ts

@@ -36,7 +36,7 @@ function filesToMiddleware (files: string[], baseDir: string, basePath: string,
 }
 
 export function scanMiddleware (serverDir: string, onChange?: (results: ServerMiddleware[], event: 'add' | 'addDir' | 'change' | 'unlink' | 'unlinkDir', file: string) => void): Promise<ServerMiddleware[]> {
-  const pattern = '**/*.{js,ts}'
+  const pattern = '**/*.{ts,mjs,js,cjs}'
   const globalDir = resolve(serverDir, 'middleware')
   const apiDir = resolve(serverDir, 'api')
 
@@ -78,7 +78,7 @@ export function resolveMiddleware (nuxt: Nuxt) {
       middleware.push({
         ...m,
         handle: tryResolvePath(handle, {
-          extensions: ['.ts', '.js'],
+          extensions: ['.ts', '.mjs', '.js', '.cjs'],
           alias: nuxt.options.alias,
           base: nuxt.options.srcDir
         }),

packages/vite/src/server.ts

@@ -32,6 +32,11 @@ export async function buildServer (ctx: ViteBuildContext) {
       ssr: true,
       rollupOptions: {
         input: resolve(ctx.nuxt.options.buildDir, 'entry.mjs'),
+        output: {
+          entryFileNames: 'server.mjs',
+          preferConst: true,
+          format: 'module'
+        },
         onwarn (warning, rollupWarn) {
           if (!['UNUSED_EXTERNAL_IMPORT'].includes(warning.code)) {
             rollupWarn(warning)
@@ -51,8 +56,8 @@ export async function buildServer (ctx: ViteBuildContext) {
   const serverDist = resolve(ctx.nuxt.options.buildDir, 'dist/server')
   await mkdirp(serverDist)
 
-  await writeFile(resolve(serverDist, 'server.js'), 'module.exports = require("./entry")', 'utf8')
   await writeFile(resolve(serverDist, 'client.manifest.json'), 'false', 'utf8')
+  await writeFile(resolve(serverDist, 'client.manifest.mjs'), 'export default false', 'utf8')
 
   const onBuild = () => ctx.nuxt.callHook('build:resources', wpfs)
 

packages/webpack/src/plugins/vue/client.ts

@@ -113,6 +113,10 @@ export default class VueSSRClientPlugin {
 
       await mkdirp(dirname(this.options.filename))
       await writeFile(this.options.filename, src)
+
+      const mjsSrc = 'export default ' + src
+      await writeFile(this.options.filename.replace('.json', '.mjs'), mjsSrc)
+
       // assets[this.options.filename] = {
       //   source: () => src,
       //   size: () => src.length

packages/webpack/src/plugins/vue/server.ts

@@ -74,6 +74,21 @@ export default class VueSSRServerPlugin {
           size: () => src.length
         }
 
+        const mjsSrc = 'export default ' + src
+        assets[this.options.filename.replace('.json', '.mjs')] = {
+          source: () => mjsSrc,
+          map: () => null,
+          size: () => mjsSrc.length
+        }
+
+        // TODO: Workaround for webpack
+        const serverJS = 'export { default } from "./server.js"'
+        assets['server.mjs'] = {
+          source: () => serverJS,
+          map: () => null,
+          size: () => serverJS.length
+        }
+
         cb()
       })
     })

playground/package.json

@@ -7,6 +7,6 @@
   "scripts": {
     "dev": "nu dev",
     "build": "nu build",
-    "start": "node .output/server"
+    "start": "node .output/server/index.mjs"
   }
 }

scripts/jest-transform.mjs

@@ -1,33 +0,0 @@
-import { transformSync } from 'esbuild'
-
-// https://jestjs.io/docs/next/code-transformation
-export default {
-  process (src, path, _opts) {
-    const r = transformSync(src, {
-      target: 'node14',
-      format: 'cjs',
-      sourcefile: path,
-      loader: path.endsWith('.ts') ? 'ts' : 'default'
-    })
-    r.code = r.code.replace(/import(\(.*\))/g, (_, id) => {
-      let openBrackets = 0
-
-      for (let pos = 0; pos < id.length; pos++) {
-        const char = id[pos]
-        switch (char) {
-          case '(':
-            openBrackets++
-            break
-          case ')':
-            openBrackets--
-            if (!openBrackets) {
-              return 'Promise.resolve(require' + id.slice(0, pos) + ')' + id.slice(pos)
-            }
-            break
-        }
-      }
-      return 'Promise.resolve(require' + id + ')'
-    })
-    return r
-  }
-}

test/fixtures/basic/nuxt.config.ts

@@ -1,3 +1,8 @@
 import { defineNuxtConfig } from '@nuxt/kit'
 
-export default defineNuxtConfig({})
+export default defineNuxtConfig({
+  buildDir: process.env.NITRO_BUILD_DIR,
+  nitro: {
+    output: { dir: process.env.NITRO_OUTPUT_DIR }
+  }
+})

test/fixtures/compat/nuxt.config.ts

@@ -6,5 +6,9 @@ global.__NUXT_PREPATHS__ = (global.__NUXT_PREPATHS__ || []).concat(__dirname)
 export default defineNuxtConfig({
   buildModules: [
     '@nuxt/nitro/compat'
-  ]
+  ],
+  buildDir: process.env.NITRO_BUILD_DIR,
+  nitro: {
+    output: { dir: process.env.NITRO_OUTPUT_DIR }
+  }
 })

test/presets/_tests.mjs

@@ -0,0 +1,70 @@
+import { resolve } from 'path'
+import destr from 'destr'
+import { listen } from 'listhen'
+import { $fetch } from 'ohmyfetch/node'
+import execa from 'execa'
+import { expect } from 'chai'
+import { fixtureDir, resolveWorkspace } from '../utils.mjs'
+
+const isCompat = Boolean(process.env.TEST_COMPAT)
+
+export function importModule (path) {
+  return import(path)
+}
+
+export function setupTest (preset) {
+  const fixture = isCompat ? 'compat' : 'basic'
+  const rootDir = fixtureDir(fixture)
+  const buildDir = resolve(rootDir, '.nuxt-' + preset)
+
+  const ctx = {
+    rootDir,
+    outDir: resolve(buildDir, 'output'),
+    fetch: url => $fetch(url, { baseURL: ctx.server.url })
+  }
+
+  it('nitro build', async () => {
+    const nuxtCLI = isCompat
+      ? resolve(ctx.rootDir, 'node_modules/nuxt/bin/nuxt.js')
+      : resolveWorkspace('packages/cli/bin/nuxt.js')
+
+    await execa('node', [nuxtCLI, 'build', ctx.rootDir], {
+      env: {
+        NITRO_PRESET: preset,
+        NITRO_BUILD_DIR: buildDir,
+        NITRO_OUTPUT_DIR: ctx.outDir,
+        NODE_ENV: 'production'
+      }
+    })
+  }).timeout(60000)
+
+  after('Cleanup', async () => {
+    if (ctx.server) {
+      await ctx.server.close()
+    }
+  })
+
+  return ctx
+}
+
+export async function startServer (ctx, handle) {
+  ctx.server = await listen(handle)
+}
+
+export function testNitroBehavior (ctx, getHandler) {
+  let handler
+
+  it('setup handler', async () => {
+    handler = await getHandler()
+  })
+
+  it('SSR Works', async () => {
+    const { data } = await handler({ url: '/' })
+    expect(data).to.have.string('Hello Vue')
+  })
+
+  it('API Works', async () => {
+    const { data } = await handler({ url: '/api/hello' })
+    expect(destr(data)).to.have.string('Hello API')
+  })
+}

test/presets/_utils.ts

@@ -1,103 +0,0 @@
-import { RequestListener } from 'http'
-import { resolve } from 'upath'
-import destr from 'destr'
-import consola from 'consola'
-import { Listener, listen } from 'listhen'
-import { $fetch } from 'ohmyfetch/node'
-import createRequire from 'create-require'
-import type { LoadNuxtOptions } from '@nuxt/kit'
-import { fixtureDir, buildFixture, loadFixture } from '../utils'
-
-const isCompat = Boolean(process.env.TEST_COMPAT)
-
-export interface TestContext {
-  rootDir: string
-  outDir: string
-  nuxt?: any
-  fetch: (url: string) => Promise<any>
-  server?: Listener
-}
-
-export interface AbstractRequest {
-  url: string
-  headers?: any
-  method?: string
-  body?: any
-}
-
-export interface AbstractResponse {
-  data: string
-}
-
-export type AbstractHandler = (req: AbstractRequest) => Promise<AbstractResponse>
-
-export function setupTest (): TestContext {
-  const fixture = isCompat ? 'compat' : 'basic'
-  const rootDir = fixtureDir(fixture)
-  const outDir = resolve(__dirname, '.output', fixture)
-
-  const ctx: TestContext = {
-    rootDir,
-    outDir,
-    fetch: url => $fetch<any>(url, { baseURL: ctx.server.url })
-  }
-
-  beforeAll(() => {
-    jest.mock('jiti', () => createRequire)
-    consola.wrapAll()
-    consola.mock(() => jest.fn())
-  })
-
-  afterAll(async () => {
-    if (ctx.nuxt) {
-      await ctx.nuxt.close()
-    }
-    if (ctx.server) {
-      await ctx.server.close()
-    }
-  })
-
-  return ctx
-}
-
-export function testNitroBuild (ctx: TestContext, preset: string) {
-  test('nitro build', async () => {
-    ctx.outDir = resolve(ctx.outDir, preset)
-
-    const loadOpts: LoadNuxtOptions = { rootDir: ctx.rootDir, dev: false, version: isCompat ? 2 : 3 }
-    await buildFixture(loadOpts)
-    const nuxt = await loadFixture(loadOpts, {
-      nitro: {
-        preset,
-        minify: false,
-        serveStatic: false,
-        externals: preset === 'cloudflare' ? false : { trace: false },
-        output: { dir: ctx.outDir }
-      }
-    })
-    await nuxt.callHook('build:done', {})
-    ctx.nuxt = nuxt
-  }, 60000)
-}
-
-export async function startServer (ctx: TestContext, handle: RequestListener) {
-  ctx.server = await listen(handle)
-}
-
-export function testNitroBehavior (_ctx: TestContext, getHandler: () => Promise<AbstractHandler>) {
-  let handler
-
-  test('setup handler', async () => {
-    handler = await getHandler()
-  })
-
-  test('SSR Works', async () => {
-    const { data } = await handler({ url: '/' })
-    expect(data).toMatch('Hello Vue')
-  }, 10000)
-
-  test('API Works', async () => {
-    const { data } = await handler({ url: '/api/hello' })
-    expect(destr(data)).toEqual('Hello API')
-  })
-}

test/presets/cloudflare.test.mjs

@@ -1,15 +1,14 @@
-import { resolve } from 'upath'
-import { readFile } from 'fs-extra'
+import { resolve } from 'path'
+import { promises as fsp } from 'fs'
 import { JSDOM } from 'jsdom'
 
-import { setupTest, testNitroBuild, testNitroBehavior } from './_utils'
+import { setupTest, testNitroBehavior } from './_tests.mjs'
 
 // TODO: fix SyntaxError: Unexpected end of input on script executation
-describe.skip('nitro:preset:cloudflare', () => {
-  const ctx = setupTest()
-  testNitroBuild(ctx, 'cloudflare')
+describe('nitro:preset:cloudflare', () => {
+  const ctx = setupTest('cloudflare')
   testNitroBehavior(ctx, async () => {
-    const script = await readFile(resolve(ctx.outDir, 'server/index.js'), 'utf-8')
+    const script = await fsp.readFile(resolve(ctx.outDir, 'server/index.mjs'), 'utf-8')
     const dom = new JSDOM(
       `<!DOCTYPE html>
       <html>

test/presets/lambda.test.mjs

@@ -1,11 +1,10 @@
-import { resolve } from 'upath'
-import { testNitroBuild, setupTest, testNitroBehavior } from './_utils'
+import { resolve } from 'path'
+import { setupTest, testNitroBehavior, importModule } from './_tests.mjs'
 
 describe('nitro:preset:lambda', () => {
-  const ctx = setupTest()
-  testNitroBuild(ctx, 'lambda')
+  const ctx = setupTest('lambda')
   testNitroBehavior(ctx, async () => {
-    const { handler } = await import(resolve(ctx.outDir, 'server/index.js'))
+    const { handler } = await importModule(resolve(ctx.outDir, 'server/index.mjs'))
     return async ({ url: rawRelativeUrl, headers, method, body }) => {
       // creating new URL object to parse query easier
       const url = new URL(`https://example.com${rawRelativeUrl}`)

test/presets/node.test.mjs

@@ -0,0 +1,16 @@
+import { resolve } from 'path'
+import { startServer, setupTest, testNitroBehavior, importModule } from './_tests.mjs'
+
+describe('nitro:preset:node', () => {
+  const ctx = setupTest('node')
+  testNitroBehavior(ctx, async () => {
+    const { handle } = await importModule(resolve(ctx.outDir, 'server/index.mjs'))
+    await startServer(ctx, handle)
+    return async ({ url }) => {
+      const data = await ctx.fetch(url)
+      return {
+        data
+      }
+    }
+  })
+})

test/presets/node.test.ts

@@ -1,17 +0,0 @@
-import { resolve } from 'upath'
-import { testNitroBuild, startServer, setupTest, testNitroBehavior } from './_utils'
-
-describe('nitro:preset:node', () => {
-  const ctx = setupTest()
-  testNitroBuild(ctx, 'node')
-  testNitroBehavior(ctx, async () => {
-    const { handle } = await import(resolve(ctx.outDir, 'server/index.js'))
-    await startServer(ctx, handle)
-    return async ({ url }) => {
-      const data = await ctx.fetch(url)
-      return {
-        data
-      }
-    }
-  })
-})

test/presets/vercel.test.mjs

@@ -1,11 +1,10 @@
-import { resolve } from 'upath'
-import { testNitroBuild, setupTest, startServer, testNitroBehavior } from './_utils'
+import { resolve } from 'path'
+import { setupTest, startServer, testNitroBehavior, importModule } from './_tests.mjs'
 
 describe('nitro:preset:vercel', () => {
-  const ctx = setupTest()
-  testNitroBuild(ctx, 'vercel')
+  const ctx = setupTest('vercel')
   testNitroBehavior(ctx, async () => {
-    const handle = await import(resolve(ctx.outDir, 'functions/node/server/index.js'))
+    const handle = await importModule(resolve(ctx.outDir, 'functions/node/server/index.mjs'))
       .then(r => r.default || r)
     await startServer(ctx, handle)
     return async ({ url }) => {

test/utils.mjs

@@ -1,15 +1,27 @@
 import { existsSync, readFileSync, writeFileSync, rmSync, mkdirSync } from 'fs'
 import { execSync } from 'child_process'
-import { resolve, dirname } from 'upath'
+import { resolve, dirname } from 'path'
+import { fileURLToPath } from 'url'
 import defu from 'defu'
 import hash from 'object-hash'
-import type { LoadNuxtOptions, NuxtConfig } from '@nuxt/kit'
+import execa from 'execa'
 
-export function fixtureDir (name: string) {
+const __dirname = dirname(fileURLToPath(import.meta.url))
+
+export function resolveWorkspace (name) {
+  return resolve(__dirname, '../', name)
+}
+
+export function fixtureDir (name) {
   return resolve(__dirname, 'fixtures', name)
 }
 
-export async function loadFixture (opts: LoadNuxtOptions, unhashedConfig?: NuxtConfig) {
+export async function execNuxtCLI (args, opts) {
+  const nuxtCLI = resolveWorkspace('packages/cli/bin/nuxt.js')
+  await execa('node', [nuxtCLI, ...args], opts)
+}
+
+export async function loadFixture (opts, unhashedConfig) {
   const buildId = hash(opts)
   const buildDir = resolve(opts.rootDir, '.nuxt', buildId)
   const { loadNuxt } = await import('@nuxt/kit')
@@ -17,7 +29,7 @@ export async function loadFixture (opts: LoadNuxtOptions, unhashedConfig?: NuxtC
   return nuxt
 }
 
-export async function buildFixture (opts: LoadNuxtOptions) {
+export async function buildFixture (opts) {
   const buildId = hash(opts)
   const buildDir = resolve(opts.rootDir, '.nuxt', buildId)
 
@@ -75,6 +87,6 @@ function waitWhile (check, interval = 100, timeout = 30000) {
   })
 }
 
-function gitHead (): string {
+function gitHead () {
   return execSync('git rev-parse HEAD').toString('utf8').trim()
 }

tsconfig.json

@@ -11,7 +11,8 @@
     "resolveJsonModule": true,
     "types": [
       "node",
-      "jest",
+      "mocha",
+      "chai",
       "@nuxt/app",
       "@nuxt/nitro",
     ]