fix(nuxt-vitest): inject vue plugins if missing

packages/nuxt-vitest/package.json

@@ -40,6 +40,8 @@
     "stub": "nuxt-module-build --stub"
   },
   "peerDependencies": {
+    "@vitejs/plugin-vue": "*",
+    "@vitejs/plugin-vue-jsx": "*",
     "vite": "*"
   },
   "dependencies": {

packages/nuxt-vitest/src/config.ts

@@ -1,6 +1,8 @@
-import type { Nuxt } from '@nuxt/schema'
+import type { Nuxt, ViteConfig } from '@nuxt/schema'
 import type { InlineConfig as VitestConfig } from 'vitest'
 import { InlineConfig, mergeConfig, defineConfig } from 'vite'
+import vuePlugin from '@vitejs/plugin-vue'
+import viteJsxPlugin from '@vitejs/plugin-vue-jsx'
 
 interface GetVitestConfigOptions {
   nuxt: Nuxt
@@ -46,11 +48,25 @@ async function startNuxtAndGetViteConfig(rootDir = process.cwd()) {
   return promise
 }
 
+const vuePlugins = {
+  'vite:vue': [vuePlugin, 'vue'],
+  'vite:vue-jsx': [viteJsxPlugin, 'vueJsx'],
+} as const
+
 export async function getVitestConfigFromNuxt(
   options?: GetVitestConfigOptions
 ): Promise<InlineConfig & { test: VitestConfig }> {
   if (!options) options = await startNuxtAndGetViteConfig()
-  options.viteConfig.plugins = options.viteConfig.plugins?.filter(p => (p as any)?.name !== 'nuxt:import-protection')
+  options.viteConfig.plugins = options.viteConfig.plugins || []
+  options.viteConfig.plugins = options.viteConfig.plugins.filter(p => (p as any)?.name !== 'nuxt:import-protection')
+
+  for (const name in vuePlugins) {
+    if (!options.viteConfig.plugins?.some(p => (p as any)?.name === name)) {
+      const [plugin, key] = vuePlugins[name as keyof typeof vuePlugins]
+      // @ts-expect-error mismatching component options
+      options.viteConfig.plugins.push(plugin((options.viteConfig as ViteConfig)[key]))
+    }
+  }
 
   return {
     ...options.viteConfig,