assert that the file mode is indeed 0

RaisinTen · RaisinTen · commit a474fcdd905e · 2021-03-26T20:03:09.000+05:30
diff --git a/test/parallel/test-recursive-rm-busy-loop-windows.js b/test/parallel/test-recursive-rm-busy-loop-windows.js
@@ -22,14 +22,20 @@ function rmdirRecursiveSync() {
 
   // Windows can EPERM on stat, which is called inside rmdirSync.
   let runTest = false;
+  let stats;
   try {
-    fs.statSync(middle);
+    stats = fs.statSync(middle);
     runTest = true;
   } catch (err) {
     assert.strictEqual(err.code, 'EPERM');
   } finally {
     try {
       if (runTest) {
+        // Assert that the file mode is indeed 0.
+        assert.strictEqual(
+          (stats.mode & Number.parseInt('777', 8)).toString(8),
+          '0');
+
         assert.throws(() => {
           fs.rmSync(root, { recursive: true });
         }, /EACCES/);
