test(oxfmt): skip entries under symlinked dirs in snapshot (#28093)

This change is introduced by Node.js v26.9.0.

apps/oxfmt/test/cli/utils.ts

@@ -147,11 +147,8 @@ async function readAllFiles(
 ): Promise<{ files: Map<string, string>; symlinks: Map<string, string> }> {
   const files = new Map<string, string>();
   const symlinks = new Map<string, string>(); // path -> link target
-  const entries = await fs.readdir(dir, { withFileTypes: true, recursive: true });
 
-  for (const entry of entries) {
-    const fullPath = join(entry.parentPath, entry.name);
-    const relPath = relative(dir, fullPath).replace(/\\/g, "/");
+  for (const { entry, fullPath, relPath } of await readEntries(dir)) {
     if (entry.isFile()) {
       files.set(relPath, await fs.readFile(fullPath, "utf8"));
     } else if (entry.isSymbolicLink()) {
@@ -162,6 +159,19 @@ async function readAllFiles(
   return { files, symlinks };
 }
 
+// `fs/promises` `readdir` with `recursive` also descends into symlinked directories since Node v26.9.0 (nodejs/node#65524).
+// Skip the entries reached through one.
+async function readEntries(dir: string) {
+  const entries = (await fs.readdir(dir, { withFileTypes: true, recursive: true })).map((entry) => {
+    const fullPath = join(entry.parentPath, entry.name);
+    return { entry, fullPath, relPath: relative(dir, fullPath).replace(/\\/g, "/") };
+  });
+  const linkDirs = entries
+    .filter(({ entry }) => entry.isSymbolicLink())
+    .map(({ relPath }) => `${relPath}/`);
+  return entries.filter(({ relPath }) => !linkDirs.some((link) => relPath.startsWith(link)));
+}
+
 // --- Diff detection and restore ---
 
 interface FileDiff {
@@ -199,11 +209,8 @@ async function detectAndRestoreChanges(
   }
 
   // Detect newly created files
-  const entriesAfter = await fs.readdir(dir, { withFileTypes: true, recursive: true });
-  for (const entry of entriesAfter) {
+  for (const { entry, fullPath, relPath } of await readEntries(dir)) {
     if (!entry.isFile()) continue;
-    const fullPath = join(entry.parentPath, entry.name);
-    const relPath = relative(dir, fullPath).replace(/\\/g, "/");
     if (!filesBefore.has(relPath)) {
       const content = await fs.readFile(fullPath, "utf8");
       created.push({ path: relPath, content });