Re:Start testing your app with Casper.js
by edwinnathaniel on Friday March 08, 2013 @03:21PM
(#5345514)
It implements the Selenium WebDriver protocol, but still executes it under WebKit.
The point of the parent is to test on multiple browsers.
I think the point of the person you're responding to, was that if you use the selenium interface with PhantomJS, you can change your testing browser to Firefox, Safari, etc with very little work on your part. i.e start with Phantom/Selenium, then test with the rest when you're ready.
http://phantomjs.org/release-1.8.html