From e94cacd088273a31a3ae19ea33f95ffc90c237f1 Mon Sep 17 00:00:00 2001
From: Tianyi Cui <53024+tianyicui@users.noreply.github.com>
Date: Sun, 9 Aug 2026 16:50:20 +0800
Subject: [PATCH] test(hmr): separate repeated watcher failures

---
 packages/boot/app-boot/tests/hmr-config.spec.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/boot/app-boot/tests/hmr-config.spec.ts b/packages/boot/app-boot/tests/hmr-config.spec.ts
index 9a1bc250cd..dbb3a8ca83 100644
--- a/packages/boot/app-boot/tests/hmr-config.spec.ts
+++ b/packages/boot/app-boot/tests/hmr-config.spec.ts
@@ -185,6 +185,9 @@ describe('HMR exact config paths', () => {
       expect(observed.error).toBeInstanceOf(Error)
       expect(observed.error.message).toBe('42')
 
+      // Let Chokidar's atomic-write window close before requiring a distinct
+      // second notification from the same path.
+      await new Promise(resolve => setTimeout(resolve, 250))
       writeFileSync(filename, 'invalid again')
       await eventually(() => failureCount === 2, 'HMR stopped broadcasting after an observer rejected')
     } finally {