Simple example of chai and selenium webdriver for node.js.

test.js

// Require chai.js expect module for assertions
var chai = require('chai');
var expect = require('chai').expect;

// Application Server
var serverUri = '0.0.0.0:3000';

// Official selenium webdriver testing setup
var webdriver = require('selenium-webdriver');

describe('basic test', function () {
    var driver;
    before(function(){
        // Start of test use this
        driver = new webdriver.Builder().
        withCapabilities(webdriver.Capabilities.chrome()).
        build();
        console.log("Selenium Webdriver Chrome Started");
    });

    after(function(){
        // End of test use this.
        driver.quit();
    });

    it('should be on correct page', function (done) {
        this.timeout(10000);
        driver.get(serverUri);
        driver.getTitle().then(function(title) {
            expect(title).to.equal('Some String Here);
            done();
            console.log("Selenium Webdriver Chrome Shutdown");
        })
    });
});

There is a open string in the code.