Question

What is PhantomJS and what is the usage of it?

Answer 1

Hi Ojaswini, PhantomJS is a headless browser with JavaScript API. It is an optimal solution for Headless Website Testing, access and manipulate webpages & comes with the standard DOM API. In order to use PhantomJS with Seleniun, one has to use GhostDriver. GhostDriver is a implementation of Webdriver Wire protocol in simple JS for PhantomJS. The latest release of PhatomJS has integrated GhostDriver so there is no need to separately install it.

Some of the usage of PhantomJS are:

• Headless Testing
• Screen Capture
• Page Automation
• Network Monitoring
• To render dashboard screenshots for their users
• To run Unit tests on command line
• To generate employee handbooks from HTML to PDF
• Combined with QUnit for the test suite

Answer 2

@Ojaswini, Phantomjs is used for automating webpage interactions. It's discontinued Headless browser which provides a Javascript API enabling automated navigation, screenshots, user behavior and assertions.It is a common tool used to run browser-based unit tests in headless system. You can use phantomJs for capturing screenshot this way:

var webpage = require('webpage').create();
webpage.open('http://google.com/', function() {
webpage.render('screenshot.pdf');
phantom.exit();
});