From 6b73b9253bba2e060903b9dc9d81bb165f7f4cc5 Mon Sep 17 00:00:00 2001
From: Linus Rath <139418639+rathlinus@users.noreply.github.com>
Date: Fri, 30 Oct 2026 00:04:04 +0100
Subject: [PATCH] fix: stop test runs from reloading the page under next dev

---
 vitest.config.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/vitest.config.ts b/vitest.config.ts
index 95a484920..1d0dd83b5 100644
--- a/vitest.config.ts
+++ b/vitest.config.ts
@@ -1,5 +1,6 @@
 import { defineConfig } from 'vitest/config';
 import react from '@vitejs/plugin-react';
+import os from 'os';
 import path from 'path';
 
 export default defineConfig({
@@ -15,6 +16,10 @@ export default defineConfig({
     // get collected too.
     // scripts/lite/smoke/** is the Playwright smoke for the static Lite export.
     exclude: ['integration/**', 'examples/**', 'repos/**', '**/node_modules/**', '.next/**', 'out/**', 'scripts/lite/smoke/**', 'scripts/perf-guard/**', 'scripts/a11y-guard/**'],
+    // The default node_modules/.vitest-cache sits inside the tree Turbopack
+    // watches, so every test run made a running `next dev` rebuild and reload
+    // the open page about once a second.
+    fsModuleCachePath: path.join(os.tmpdir(), 'bulwark-vitest-cache'),
   },
   resolve: {
     alias: {