From e40f9924751b69dbad868ae318d8be7289071ca7 Mon Sep 17 00:00:00 2001
From: Vladimir <sleuths.slews0s@icloud.com>
Date: Mon, 22 Apr 2024 10:48:06 +0200
Subject: [PATCH] fix(vitest): watch the output directory correctly (#5584)

---
 packages/vitest/src/node/plugins/index.ts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/packages/vitest/src/node/plugins/index.ts b/packages/vitest/src/node/plugins/index.ts
index c0b1d9b237b0..5f074491e4e3 100644
--- a/packages/vitest/src/node/plugins/index.ts
+++ b/packages/vitest/src/node/plugins/index.ts
@@ -90,6 +90,15 @@ export async function VitestPlugin(options: UserConfig = {}, ctx = new Vitest('t
               allow: resolveFsAllow(getRoot(), testConfig.config),
             },
           },
+          build: {
+            // Vitest doesn't use outputDir, but this value affects what folders are watched
+            // https://github.com/vitest-dev/vitest/issues/5429
+            // This works for Vite <5.2.10
+            outDir: 'dummy-non-existing-folder',
+            // This works for Vite >=5.2.10
+            // https://github.com/vitejs/vite/pull/16453
+            emptyOutDir: false,
+          },
           test: {
             poolOptions: {
               threads: {