From 12360d84ffef6ca95214e1a86bc6da984c32dbac Mon Sep 17 00:00:00 2001
From: nyrax <234825343+HttpGetBinary@users.noreply.github.com>
Date: Wed, 22 Apr 2026 00:08:00 +0200
Subject: [PATCH] test_runner: add [Symbol.dispose] to mock Timeout class

The mock Timeout returned by MockTimers did not implement
[Symbol.dispose], making it incompatible with the `using`
keyword. The real Timeout has this method. This fix adds it,
calling globalThis.clearTimeout(this) which routes through
the mock's own clearTimeout when mocks are active.

Fixes: https://github.com/nodejs/node/issues/62815
---
 lib/internal/test_runner/mock/mock_timers.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/internal/test_runner/mock/mock_timers.js b/lib/internal/test_runner/mock/mock_timers.js
index 643128c3f0031f..69f62357b0d7bf 100644
--- a/lib/internal/test_runner/mock/mock_timers.js
+++ b/lib/internal/test_runner/mock/mock_timers.js
@@ -92,6 +92,10 @@ class Timeout {
   refresh() {
     return this;
   }
+
+  [SymbolDispose]() {
+    globalThis.clearTimeout(this);
+  }
 }
 
 class MockTimers {