From 5affbc24b945e6edc2b0ae0a8a2999e574565b6d Mon Sep 17 00:00:00 2001
From: Valentin Palkovic <valentin@chromatic.com>
Date: Wed, 8 Jan 2025 15:02:25 +0100
Subject: [PATCH] Adjust sandbox parts to setup addon test the same way as its
 postinstall script

---
 scripts/tasks/sandbox-parts.ts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/scripts/tasks/sandbox-parts.ts b/scripts/tasks/sandbox-parts.ts
index 271fbba9dcd8..5d11bd7380ed 100644
--- a/scripts/tasks/sandbox-parts.ts
+++ b/scripts/tasks/sandbox-parts.ts
@@ -480,13 +480,22 @@ export async function setupVitest(details: TemplateDetails, options: PassedOptio
     dedent`
       import { defineWorkspace, defaultExclude } from "vitest/config";
       import { storybookTest } from "@storybook/experimental-addon-test/vitest-plugin";
+      import path from 'node:path';
+      import { fileURLToPath } from 'node:url';
+
+      import viteConfig from './vite.config';
+
       ${frameworkPluginImport}
 
+      const dirname =
+        typeof __dirname !== 'undefined' ? __dirname : path.dirname(fileURLToPath(import.meta.url));
+
       export default defineWorkspace([
         {
           ${!isNextjs ? `extends: "${viteConfigPath}",` : ''}
           plugins: [
             storybookTest({
+              configDir: path.join(dirname, '.storybook'),
               storybookScript: "yarn storybook --ci",
               tags: {
                 include: ["vitest"],