From 52581cd4e9c425e2cf992d45be91980e554d8874 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gerg=C5=91=20Magyar?= <gergomagyar@icloud.com>
Date: Mon, 28 Sep 2026 16:52:01 +0100
Subject: [PATCH] test(group): make bridge mtime fixture deterministic

Fixes #3397
---
 .../test/unit/group/bridge-meta-swap-window.test.ts    | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/gitnexus/test/unit/group/bridge-meta-swap-window.test.ts b/gitnexus/test/unit/group/bridge-meta-swap-window.test.ts
index a1ab45817..32ae5da99 100644
--- a/gitnexus/test/unit/group/bridge-meta-swap-window.test.ts
+++ b/gitnexus/test/unit/group/bridge-meta-swap-window.test.ts
@@ -151,6 +151,16 @@ describe('writeBridge meta.json swap window', () => {
     delete legacy.bridgeSize;
     delete legacy.bridgeMtimeMs;
 
+    const dbPath = path.join(groupDir, 'bridge.lbug');
+    const metaPath = path.join(groupDir, 'meta.json');
+    const dbTime = new Date('2020-01-01T00:00:00.000Z');
+    const metaTime = new Date('2020-01-01T00:00:10.000Z');
+    await fsp.utimes(dbPath, dbTime, dbTime);
+    await fsp.utimes(metaPath, metaTime, metaTime);
+
+    const dbStat = await fsp.stat(dbPath);
+    const metaStat = await fsp.stat(metaPath);
+    expect(metaStat.mtimeMs - dbStat.mtimeMs).toBeGreaterThan(1000);
     await expect(bridgeMetaMatchesFile(groupDir, legacy)).resolves.toBe(true);
   });