Merge pull request 'Set up Vitest' (#93) from testing/set-up-vitest into main

Reviewed-on: #93
Reviewed-by: Jakob Gregory

package.json

@@ -6,7 +6,9 @@
   "scripts": {
     "dev": "vite",
     "build": "vite build",
-    "preview": "vite preview"
+    "preview": "vite preview",
+    "test": "vitest",
+    "test:run": "vitest run"
   },
   "dependencies": {
     "terser": "^5.47.1",
@@ -16,7 +18,9 @@
   },
   "devDependencies": {
     "@vitejs/plugin-vue": "^6.0.6",
+    "jsdom": "^29.1.1",
     "vite": "^8.0.10",
-    "vite-plugin-html": "^3.2.2"
+    "vite-plugin-html": "^3.2.2",
+    "vitest": "^4.1.7"
   }
 }

vite.config.js

@@ -31,5 +31,9 @@ export default defineConfig({
     alias: {
       '@': path.resolve(__dirname, './src')
     }
+  },
+  test: {
+    globals: false,
+    environment: 'jsdom'
   }
 })