test: ignore unrelated events in FW watch tests

Change assertions on `test-fs-watch-recursive-add-*` tests to only take
into account change events that match the file.

PR-URL: https://github.com/nodejs/node/pull/55605
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Pietro Marchini <pietro.marchini94@gmail.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/parallel/test-fs-watch-recursive-add-file-to-existing-subfolder.js

@@ -40,9 +40,8 @@ const relativePath = path.join(file, path.basename(subfolderPath), childrenFile)
 const watcher = fs.watch(testDirectory, { recursive: true });
 let watcherClosed = false;
 watcher.on('change', function(event, filename) {
-  assert.strictEqual(event, 'rename');
-
   if (filename === relativePath) {
+    assert.strictEqual(event, 'rename');
     watcher.close();
     watcherClosed = true;
   }

test/parallel/test-fs-watch-recursive-add-file-to-new-folder.js

@@ -33,32 +33,20 @@ const childrenAbsolutePath = path.join(filePath, childrenFile);
 const childrenRelativePath = path.join(path.basename(filePath), childrenFile);
 let watcherClosed = false;
 
-function doWatch() {
-  const watcher = fs.watch(testDirectory, { recursive: true });
-  watcher.on('change', function(event, filename) {
+const watcher = fs.watch(testDirectory, { recursive: true });
+watcher.on('change', function(event, filename) {
+  if (filename === childrenRelativePath) {
     assert.strictEqual(event, 'rename');
-    assert.ok(filename === path.basename(filePath) || filename === childrenRelativePath);
+    watcher.close();
+    watcherClosed = true;
+  }
+});
 
-    if (filename === childrenRelativePath) {
-      watcher.close();
-      watcherClosed = true;
-    }
-  });
-
-  // Do the write with a delay to ensure that the OS is ready to notify us.
-  setTimeout(() => {
-    fs.mkdirSync(filePath);
-    fs.writeFileSync(childrenAbsolutePath, 'world');
-  }, common.platformTimeout(200));
-}
-
-if (common.isMacOS) {
-  // On macOS delay watcher start to avoid leaking previous events.
-  // Refs: https://github.com/libuv/libuv/pull/4503
-  setTimeout(doWatch, common.platformTimeout(100));
-} else {
-  doWatch();
-}
+// Do the write with a delay to ensure that the OS is ready to notify us.
+setTimeout(() => {
+  fs.mkdirSync(filePath);
+  fs.writeFileSync(childrenAbsolutePath, 'world');
+}, common.platformTimeout(200));
 
 process.once('exit', function() {
   assert(watcherClosed, 'watcher Object was not closed');

test/parallel/test-fs-watch-recursive-add-file-with-url.js

@@ -35,9 +35,8 @@ tmpdir.refresh();
   const watcher = fs.watch(url, { recursive: true });
   let watcherClosed = false;
   watcher.on('change', function(event, filename) {
-    assert.strictEqual(event, 'rename');
-
     if (filename === path.basename(filePath)) {
+      assert.strictEqual(event, 'rename');
       watcher.close();
       watcherClosed = true;
     }

test/parallel/test-fs-watch-recursive-add-file.js

@@ -31,9 +31,8 @@ const testFile = path.join(testDirectory, 'file-1.txt');
 const watcher = fs.watch(testDirectory, { recursive: true });
 let watcherClosed = false;
 watcher.on('change', function(event, filename) {
-  assert.strictEqual(event, 'rename');
-
   if (filename === path.basename(testFile)) {
+    assert.strictEqual(event, 'rename');
     watcher.close();
     watcherClosed = true;
   }

test/parallel/test-fs-watch-recursive-add-folder.js

@@ -33,9 +33,8 @@ tmpdir.refresh();
   const watcher = fs.watch(testDirectory, { recursive: true });
   let watcherClosed = false;
   watcher.on('change', function(event, filename) {
-    assert.strictEqual(event, 'rename');
-
     if (filename === path.basename(testFile)) {
+      assert.strictEqual(event, 'rename');
       watcher.close();
       watcherClosed = true;
     }