Book Image

Selenium WebDriver 3 Practical Guide - Second Edition

By : Pallavi Sharma, UNMESH GUNDECHA, Satya Avasarala
Book Image

Selenium WebDriver 3 Practical Guide - Second Edition

By: Pallavi Sharma, UNMESH GUNDECHA, Satya Avasarala

Overview of this book

Selenium WebDriver is an open source automation tool implemented through a browser-specific driver, which sends commands to a browser and retrieves results. The latest version of Selenium 3 brings with it a lot of new features that change the way you use and setup Selenium WebDriver. This book covers all those features along with the source code, including a demo website that allows you to work with an HMTL5 application and other examples throughout the book. Selenium WebDriver 3 Practical Guide will walk you through the various APIs of Selenium WebDriver, which are used in automation tests, followed by a discussion of the various WebDriver implementations available. You will learn to strategize and handle rich web UI using advanced WebDriver API along with real-time challenges faced in WebDriver and solutions to handle them. You will discover different types and domains of testing such as cross-browser testing, load testing, and mobile testing with Selenium. Finally, you will also be introduced to data-driven testing using TestNG to create your own automation framework. By the end of this book, you will be able to select any web application and automate it the way you want.
Table of Contents (14 chapters)

Understanding the JSON wire protocol

In many places, we have mentioned that WebDriver uses the JSON wire protocol to communicate between client libraries and different driver (that is, Chrome Driver, IE Driver, Gecko Driver, and so on) implementations. In this section, we will see exactly what it is and which different JSON APIs a client library should implement to talk to the drivers.

JavaScript Object Notation (JSON) is used to represent objects with complex data structures. It is used primarily to transfer data between a server and a client on the web. It has become an industry standard for various REST web services, offering a strong alternative to XML.

A sample JSON file, saved as a .json file, will look as follows:

{ 
"firstname":"John",
"lastname":"Doe",
"address...