import { defineConfig, mergeConfig } from 'vitest/config'; import viteConfig from './vite.config.mjs'; export default defineConfig(configEnv => mergeConfig( viteConfig, defineConfig({ test: { include: ['tests/**'], environment: 'jsdom', }, browser: { enabled: true, headless: true, provider: 'playwright', instances: [ { browser: 'chromium', }, ], }, }), ));