webdriverio-test/index.js

var webdriverio = require('webdriverio');
var options = {
  desiredCapabilities: {
    browserName: 'firefox'
  }
};

console.log('lets go!');

var client = webdriverio.remote(options);
console.log(client);
try {
  try {
    client
        .init()
        .url('https://duckduckgo.com/')
        .setValue('#search_form_input_homepage', 'WebdriverIO')
        .click('#search_button_homepage')
        .getTitle().then(function(title) {
            console.log('Title is: ' + title);

            // outputs:
            // "Title is: WebdriverIO (Software) at DuckDuckGo"
        })
        .end();
  }
  catch(e) {
    console.log(e);
  }
}
finally {
  console.log('end');
}