The mocha-casperjs equivalent to Hello World

casperjs_test.js

var expect = require("chai").expect
describe('Duck Duck Go', function() {
  before(function() {
    casper.start('http://www.duckduckgo.com/');
  })

  it('checks for the correct title', function() {
    casper.then(function() {
      expect(this.getTitle()).to.equal("DuckDuckGo");
      expect(this.exists("#search_form_input_homepage")).to.equal(true);
    });
  });

  it('wiat for the element to appear', function() {
    casper.waitForSelector("#search_form_input_homepage", function() {
      "#search_form_input_homepage".should.be.inDOM;
    })
  })
});