feat: defineConfigWithNuxtEnv helper

playground/vitest.config.mjs

@@ -1,15 +1,9 @@
-import { defineConfig } from 'vite'
-import { getVitestConfig } from 'vitest-environment-nuxt/config'
+import { defineConfigWithNuxtEnv } from 'vitest-environment-nuxt/config'
 
-const viteConfig = await getVitestConfig()
-
-export default defineConfig({
-  ...viteConfig,
+export default defineConfigWithNuxtEnv({
+  // TODO: fix bug with stubbing root package
   resolve: {
-    ...viteConfig.resolve,
     alias: {
-      ...viteConfig.resolve?.alias,
-      // TODO: fix bug with stubbing root package
       'vitest-environment-nuxt/utils': '../src/utils',
       'vitest-environment-nuxt': '../src/index',
     },

src/config.ts

@@ -1,6 +1,6 @@
 import { loadNuxt, buildNuxt } from '@nuxt/kit'
 import type { InlineConfig as VitestConfig } from 'vitest'
-import type { InlineConfig } from 'vite'
+import { InlineConfig, mergeConfig, defineConfig } from 'vite'
 
 // https://github.com/nuxt/framework/issues/6496
 async function getViteConfig (rootDir = process.cwd()) {
@@ -40,3 +40,8 @@ export async function getVitestConfig (): Promise<InlineConfig & { test: VitestC
     },
   }
 }
+export async function defineConfigWithNuxtEnv(config: InlineConfig = {}) {
+  return defineConfig(async () => {
+    return mergeConfig(await getVitestConfig(), config)
+  })
+}