From 5f1a59cb41da19a06e700a768c2d79a665a1a8f0 Mon Sep 17 00:00:00 2001
From: Benjamin Gruenbaum <benjamingr@gmail.com>
Date: Sat, 29 Jan 2022 21:49:26 +0200
Subject: [PATCH] test: make fs watch test more stable

PR-URL: https://github.com/nodejs/node/pull/41715
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
---
 test/pummel/test-fs-watch-non-recursive.js | 23 +++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/test/pummel/test-fs-watch-non-recursive.js b/test/pummel/test-fs-watch-non-recursive.js
index 49071a965f1737..e0ef20bef0b4be 100644
--- a/test/pummel/test-fs-watch-non-recursive.js
+++ b/test/pummel/test-fs-watch-non-recursive.js
@@ -28,7 +28,7 @@ if (common.isIBMi) {
 
 const path = require('path');
 const fs = require('fs');
-
+const assert = require('assert');
 const tmpdir = require('../common/tmpdir');
 tmpdir.refresh();
 
@@ -38,13 +38,14 @@ const filepath = path.join(testsubdir, 'watch.txt');
 
 fs.mkdirSync(testsubdir, 0o700);
 
-// Need a grace period, else the mkdirSync() above fires off an event.
-setTimeout(function() {
-  const watcher = fs.watch(testDir, { persistent: true }, common.mustNotCall());
-  setTimeout(function() {
-    fs.writeFileSync(filepath, 'test');
-  }, 100);
-  setTimeout(function() {
-    watcher.close();
-  }, 500);
-}, 50);
+const watcher = fs.watch(testDir, { persistent: true }, (event, filename) => {
+  // This function may be called with the directory depending on timing but
+  // must not be called with the file..
+  assert.strictEqual(filename, 'testsubdir');
+});
+setTimeout(() => {
+  fs.writeFileSync(filepath, 'test');
+}, 100);
+setTimeout(() => {
+  watcher.close();
+}, 500);