test: add tests for electron fuses (#42129)

* spec: add tests for electron fuses

* spec: fix tests for windows

* spec: handle weird crash codes on win32

* spec: disable fuse tests on arm64 windows

spec/lib/fs-helpers.ts

@@ -0,0 +1,40 @@
+import * as cp from 'node:child_process';
+import * as fs from 'original-fs';
+import * as fsExtra from 'fs-extra';
+import * as os from 'node:os';
+import * as path from 'node:path';
+
+export async function copyApp (targetDir: string): Promise<string> {
+  // On macOS we can just copy the app bundle, easier too because of symlinks
+  if (process.platform === 'darwin') {
+    const appBundlePath = path.resolve(process.execPath, '../../..');
+    const newPath = path.resolve(targetDir, 'Electron.app');
+    cp.spawnSync('cp', ['-R', appBundlePath, path.dirname(newPath)]);
+    return newPath;
+  }
+
+  // On windows and linux we should read the zip manifest files and then copy each of those files
+  // one by one
+  const baseDir = path.dirname(process.execPath);
+  const zipManifestPath = path.resolve(__dirname, '..', '..', 'script', 'zip_manifests', `dist_zip.${process.platform === 'win32' ? 'win' : 'linux'}.${process.arch}.manifest`);
+  const filesToCopy = (fs.readFileSync(zipManifestPath, 'utf-8')).split('\n').filter(f => f !== 'LICENSE' && f !== 'LICENSES.chromium.html' && f !== 'version' && f.trim());
+  await Promise.all(
+    filesToCopy.map(async rel => {
+      await fsExtra.mkdirp(path.dirname(path.resolve(targetDir, rel)));
+      fs.copyFileSync(path.resolve(baseDir, rel), path.resolve(targetDir, rel));
+    })
+  );
+
+  return path.resolve(targetDir, path.basename(process.execPath));
+}
+
+export async function withTempDirectory (fn: (dir: string) => Promise<void>, autoCleanUp = true) {
+  const dir = await fsExtra.mkdtemp(path.resolve(os.tmpdir(), 'electron-update-spec-'));
+  try {
+    await fn(dir);
+  } finally {
+    if (autoCleanUp) {
+      cp.spawnSync('rm', ['-r', dir]);
+    }
+  }
+};