From 410bc454071615f1e350680ce53aab76fac3145b Mon Sep 17 00:00:00 2001
From: Vladimir <sleuths.slews0s@icloud.com>
Date: Wed, 6 Sep 2023 20:50:39 +0300
Subject: [PATCH] fix(vitest): only override ssr.optimizer instead of the whole
 ssr object (#4080)

---
 packages/vitest/src/node/plugins/optimizer.ts | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/packages/vitest/src/node/plugins/optimizer.ts b/packages/vitest/src/node/plugins/optimizer.ts
index 85cd3c36e17a..c276ef6e696c 100644
--- a/packages/vitest/src/node/plugins/optimizer.ts
+++ b/packages/vitest/src/node/plugins/optimizer.ts
@@ -13,9 +13,8 @@ export function VitestOptimizer(): Plugin {
 
         viteConfig.cacheDir = webOptimizer.cacheDir || ssrOptimizer.cacheDir || viteConfig.cacheDir
         viteConfig.optimizeDeps = webOptimizer.optimizeDeps
-        viteConfig.ssr = {
-          optimizeDeps: ssrOptimizer.optimizeDeps,
-        }
+        viteConfig.ssr ??= {}
+        viteConfig.ssr.optimizeDeps = ssrOptimizer.optimizeDeps
       },
     },
   }