Headless Chrome is shipping in Chrome 59 (currently in beta), it seems that we can use the browser without UI. It is very interesting for testing and automated purpose. In this post, we are going to configure Behat (a PHP framework for autotesting your business expectations) to use Chrome in headless mode.
This new Chrome feature interest a large part of the Web community. So much, that the maintainer of PhantomJS, a headless browser which is also based on Webkit, announced the end of the project. So, if you used this in your Behat scenarios, you should change the browser you used.
This is an sample of the Behat configuration I use for PhantomJS :
Now we have to make some change to be able to use Chrome browser. First, we have
to add the ChromeDriver.
Next, we need to add some configuration directory in our
behat.yml file :
There are some little changes if the configuration file. We begin by defining the
browser we want to use. Then we set up some
capabilities (options that can
add to customize and configure our Chrome session). We add the
to use the headless mode in combination to
--disable-gpu which is temporarily
needed for now.
Et voilà ! By adding 5 lines of configuration we have replaced the PhantomJS browser usage by Google Chrome with "headless" mode.