From 7e01aab1e1bd59fb28b796a285a31f80e126b42a Mon Sep 17 00:00:00 2001
From: Valentin Palkovic <valentin@chromatic.com>
Date: Tue, 17 Jun 2025 15:53:53 +0200
Subject: [PATCH] Sandbox: Override the right vitest.config file depending on
 language

---
 scripts/tasks/sandbox-parts.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/scripts/tasks/sandbox-parts.ts b/scripts/tasks/sandbox-parts.ts
index ae8fb2031516..7f51bd0c43d0 100644
--- a/scripts/tasks/sandbox-parts.ts
+++ b/scripts/tasks/sandbox-parts.ts
@@ -398,7 +398,11 @@ export async function setupVitest(details: TemplateDetails, options: PassedOptio
     ? template.expected.framework
     : template.expected.renderer;
 
-  const setupFilePath = join(sandboxDir, '.storybook/vitest.setup.ts');
+  const isTypeScriptSandbox = template.name.includes('TypeScript');
+  const setupFilePath = join(
+    sandboxDir,
+    isTypeScriptSandbox ? '.storybook/vitest.setup.ts' : '.storybook/vitest.setup.js'
+  );
 
   const shouldUseCsf4 = template.expected.framework === '@storybook/react-vite';
   if (shouldUseCsf4) {