template testing

server/package.json

@@ -16,6 +16,10 @@
     "socket.io": "^4.0.0"
   },
   "scripts": {
-    "start": "node src/app.js"
+    "start": "node src/app.js",
+    "test": "node --experimental-vm-modules node_modules/jest/bin/jest.js"
+  },
+  "devDependencies": {
+    "jest": "^27.0.4"
   }
 }