Headless Chrome

Starting with Chrome 57, we can run Chrome as a headless browser. It is a way to run the Chrome browser in a headless environment without the full browser UI.

Pros

* Tests script will be executed in the same environment as users of your site
* Headless Chrome gives you a real browser context without the memory overhead of running a full version of Chrome.
* Chrome is faster and more stable than PhantomJS. And it doesn’t eat memory like crazy

Cons

* If you need to do lots of debugging, headless debugging can be difficult.
* You need to mimic real users

Prerequisites

* Google Chrome > 59
* Chromedriver
* Selenium
* Python(You can also use java,ruby,javascrpit etc)

Setup

Now we will make a complete setup for headless chrome, for that we have to install all the prerequisties explained above. I have used python for writing test script. You can check this Link for step by step instruction for installation of headless chrome.

Example

Below is the Python script for Facebook login using headless chrome .By executing this script user will first login facebbok after that it update his Facebook status.

import os
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.chrome.options import Options
import time
chrome_options = Options()
chrome_options.add_argument("headless")

When we will open facebook's website then a alert message appears, we have to handle it.So i have used chrome options to disable the notification. Below is code for the same.

a = "path/of/your/chrome/driver"
chrome_options.add_argument("--disable-notifications")
driver = webdriver.Chrome(str(a),   chrome_options=chrome_options)
driver.get("https://www.facebook.com/")
driver.implicitly_wait (10)
driver.find_element_by_id("email").send_keys("Facebookid")
driver.find_element_by_id("pass").send_keys("password")
title1=driver.title