Test Socket.IO Using a Node.js Client

You do not always need a browser to test Socket.IO.

The socket.io-client package can also be used from Node.js scripts.

Install it as a development dependency:

npm install -D socket.io-client

Create a test script to connect to your server, emit an event, receive a response, and disconnect.

This approach is useful for automated testing and backend integration tests.

Install and Create Test Client
npm install -D socket.io-client

Installs the Socket.IO client package for use in Node.js test scripts.