diff --git a/packages/nuxt/src/runtime/plugin.vue3.ts b/packages/nuxt/src/runtime/plugin.vue3.ts
index 5290c06dc8..6e4d5367ad 100644
--- a/packages/nuxt/src/runtime/plugin.vue3.ts
+++ b/packages/nuxt/src/runtime/plugin.vue3.ts
@@ -4,7 +4,11 @@ import { defineNuxtPlugin, Plugin } from '#app'
 
 const plugin: Plugin<{ pinia: Pinia }> = defineNuxtPlugin((nuxtApp) => {
   const pinia = createPinia()
-  nuxtApp.vueApp.use(pinia)
+
+  if (process.env.NODE_ENV !== 'test') {
+    nuxtApp.vueApp.use(pinia)
+  }
+
   setActivePinia(pinia)
 
   if (process.server) {
diff --git a/rollup.config.mjs b/rollup.config.mjs
index 74019ed061..95fe0ce8a9 100644
--- a/rollup.config.mjs
+++ b/rollup.config.mjs
@@ -90,7 +90,7 @@ function createConfig(buildName, output, plugins = []) {
     process.exit(1)
   }
 
-  output.sourcemap = !!process.env.SOURCE_MAP
+  output.sourcemap = true
   output.banner = banner
   output.externalLiveBindings = false
   output.globals = {