test: add test for fs-serve

packages/playground/fs-serve/__tests__/fs-serve.spec.ts

@@ -0,0 +1,22 @@
+import { isBuild } from '../../testUtils'
+
+const json = require('../safe.json')
+const stringified = JSON.stringify(json)
+
+if (!isBuild) {
+  test('default import', async () => {
+    expect(await page.textContent('.full')).toBe(stringified)
+  })
+
+  test('named import', async () => {
+    expect(await page.textContent('.named')).toBe(json.msg)
+  })
+
+  test('safe fetch', async () => {
+    expect(await page.textContent('.safe-fetch')).toBe(stringified)
+  })
+
+  test('unsafe fetch', async () => {
+    expect(await page.textContent('.unsafe-fetch')).toBe('')
+  })
+}

packages/playground/fs-serve/entry.js

@@ -0,0 +1,5 @@
+import { msg } from './nested/foo'
+
+export const fullmsg = msg + 'bar'
+
+document.querySelector('.nested-entry').textContent = fullmsg

packages/playground/fs-serve/nested/foo.js

@@ -0,0 +1 @@
+export const msg = 'foo'

packages/playground/fs-serve/package.json

@@ -0,0 +1,11 @@
+{
+  "name": "test-fs-serve",
+  "private": true,
+  "version": "0.0.0",
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "debug": "node --inspect-brk ../../vite/bin/vite",
+    "serve": "vite preview"
+  }
+}

packages/playground/fs-serve/root/index.html

@@ -0,0 +1,39 @@
+<h2>Normal Import</h2>
+<pre class="full"></pre>
+<pre class="named"></pre>
+
+<h2>Safe Fetch</h2>
+<pre class="safe-fetch"></pre>
+
+<h2>Unsafe Fetch</h2>
+<pre class="unsafe-fetch"></pre>
+
+<h2>Nested Entry</h2>
+<pre class="nested-entry"></pre>
+
+<script type="module">
+  import '../entry'
+  import json, { msg } from '../safe.json'
+
+  text('.full', JSON.stringify(json))
+  text('.named', msg)
+
+  // imported before, should be treated as safe
+  fetch('/@fs' + ROOT + '/safe.json')
+    .then((r) => r.json())
+    .then((data) => {
+      text('.safe-fetch', JSON.stringify(data))
+    })
+
+  // not imported before, outside of root, treated as unsafe
+  fetch('/@fs' + ROOT + '/unsafe.json')
+    .catch((e) => console.error(e))
+    .then((r) => r.json())
+    .then((data) => {
+      text('.unsafe-fetch', JSON.stringify(data))
+    })
+
+  function text(sel, text) {
+    document.querySelector(sel).textContent = text
+  }
+</script>

packages/playground/fs-serve/root/vite.config.ts

@@ -0,0 +1,17 @@
+import { dirname } from 'path'
+import { defineConfig } from 'vite'
+
+export default defineConfig({
+  server: {
+    fsServe: {
+      root: __dirname,
+      strict: true
+    },
+    hmr: {
+      overlay: false
+    }
+  },
+  define: {
+    ROOT: JSON.stringify(dirname(__dirname).replace(/\\/g, '/'))
+  }
+})

packages/playground/fs-serve/safe.json

@@ -0,0 +1,3 @@
+{
+  "msg": "safe"
+}

packages/playground/fs-serve/unsafe.json

@@ -0,0 +1,3 @@
+{
+  "msg": "unsafe"
+}

scripts/jestPerTestSetup.ts

@@ -68,8 +68,12 @@ beforeAll(async () => {
         return
       }
 
+      // when `root` dir is present, use it as vite's root
+      let testCustomRoot = resolve(tempDir, 'root')
+      if (!fs.existsSync(testCustomRoot)) testCustomRoot = tempDir
+
       const options: UserConfig = {
-        root: tempDir,
+        root: testCustomRoot,
         logLevel: 'silent',
         server: {
           watch: {