test(rn-update): run real Hermes compiler on Windows

packages/update/scripts/xuqm-rn.test.mjs

@@ -1,12 +1,22 @@
 import assert from 'node:assert/strict'
 import { execFileSync } from 'node:child_process'
-import { mkdirSync, mkdtempSync, readFileSync, rmSync, writeFileSync } from 'node:fs'
+import {
+  chmodSync,
+  copyFileSync,
+  mkdirSync,
+  mkdtempSync,
+  readFileSync,
+  rmSync,
+  writeFileSync,
+} from 'node:fs'
+import { createRequire } from 'node:module'
 import { tmpdir } from 'node:os'
 import path from 'node:path'
 import test from 'node:test'
 import { fileURLToPath } from 'node:url'
 
 const cli = fileURLToPath(new URL('./xuqm-rn.mjs', import.meta.url))
+const workspaceRequire = createRequire(import.meta.url)
 
 test('embed creates a complete versioned manifest from a host fixture', () => {
   const root = mkdtempSync(path.join(tmpdir(), 'xuqm-cli-'))
@@ -139,25 +149,34 @@ test('Android Hermes hosts compile plugin bundles to bytecode', () => {
           : 'linux64-bin',
       process.platform === 'win32' ? 'hermesc.exe' : 'hermesc',
     )
-    writeFileSync(
-      compiler,
-      `#!/usr/bin/env node
-const fs = require('node:fs');
-const args = process.argv.slice(2);
-fs.writeFileSync(args[args.indexOf('-out') + 1], 'hermes-bytecode');
-`,
-      { mode: 0o755 },
+    // 使用当前 React Native 实际依赖的 Hermes 编译器。文本脚本即使命名为
+    // hermesc.exe 也不是 Windows 可执行文件，会让 CI 只验证到测试替身而非真实链路。
+    const workspaceReactNativeManifest = workspaceRequire.resolve('react-native/package.json')
+    const workspaceReactNativeRequire = createRequire(workspaceReactNativeManifest)
+    const workspaceCompilerManifest = workspaceReactNativeRequire.resolve(
+      'hermes-compiler/package.json',
     )
+    const workspaceCompiler = path.join(
+      path.dirname(workspaceCompilerManifest),
+      'hermesc',
+      process.platform === 'win32'
+        ? 'win64-bin'
+        : process.platform === 'darwin'
+          ? 'osx-bin'
+          : 'linux64-bin',
+      process.platform === 'win32' ? 'hermesc.exe' : 'hermesc',
+    )
+    copyFileSync(workspaceCompiler, compiler)
+    if (process.platform !== 'win32') chmodSync(compiler, 0o755)
 
     execFileSync(process.execPath, [cli, 'embed', 'android'], {
       cwd: root,
       stdio: 'pipe',
     })
 
-    assert.equal(
-      readFileSync(path.join(root, 'generated', 'common.android.bundle'), 'utf8'),
-      'hermes-bytecode',
-    )
+    const bytecode = readFileSync(path.join(root, 'generated', 'common.android.bundle'))
+    assert.ok(bytecode.length > Buffer.byteLength('javascript'))
+    assert.notEqual(bytecode.toString('utf8'), 'javascript')
     const manifest = JSON.parse(readFileSync(path.join(root, 'generated', 'manifest.json'), 'utf8'))
     assert.equal(manifest.bundleFormat, 'hermes-bytecode')
   } finally {