What is headless Testing

Headless Testing means running a browser UI test without the head aka. no browser UI. It is extremely helpful when we don’t really care about the UI, but would like to execute out Automation tests as fast as possible and not involving any “draw” operations onto the screen that consumes it own time and memory.

Ways to execute headless browser Testing

If Chrome version is 59 we can use ChromeOption class as suggested below

ChromeOptions options = new ChromeOptions();

//Adding "headless" argument to options

options.addArguments("headless");

driver = new ChromeDriver(options);

if Chrome version is less than 59 we can use HtmlUnitDriver which allows us to select version of browser that you would like to run your tests on. You can select the browser version like this.