Book Image

Selenium Framework Design in Data-Driven Testing

By : Carl Cocchiaro
Book Image

Selenium Framework Design in Data-Driven Testing

By: Carl Cocchiaro

Overview of this book

The Selenium WebDriver 3.x Technology is an open source API available to test both Browser and Mobile applications. It is completely platform independent in that tests built for one browser or mobile device, will also work on all other browsers and mobile devices. Selenium supports all major development languages which allow it to be tied directly into the technology used to develop the applications. This guide will provide a step-by-step approach to designing and building a data-driven test framework using Selenium WebDriver, Java, and TestNG. The book starts off by introducing users to the Selenium Page Object Design Patterns and D.R.Y Approaches to Software Development. In doing so, it covers designing and building a Selenium WebDriver framework that supports both Browser and Mobile Devices. It will lead the user through a journey of architecting their own framework with a scalable driver class, Java utility classes, JSON Data Provider, Data-Driven Test Classes, and support for third party tools and plugins. Users will learn how to design and build a Selenium Grid from scratch to allow the framework to scale and support different browsers, mobile devices, versions, and platforms, and how they can leverage third party grids in the Cloud like SauceLabs. Other topics covered include designing abstract base and sub-classes, inheritance, dual-driver support, parallel testing, testing multi-branded applications, best practices for using locators, and data encapsulation. Finally, you will be presented with a sample fully-functional framework to get them up and running with the Selenium WebDriver for browser testing. By the end of the book, you will be able to design your own automation testing framework and perform data-driven testing with Selenium WebDriver.
Table of Contents (15 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface

The image capture class


Another important library to include in the framework is the image capture class. It is used by the test listener, reporter, and test classes to take screenshots of the browser or mobile screens when exceptions occur. There are various methods that can be built to capture the image of the entire screen, an individual WebElement or MobileElement, or to compare the images. Each method will be outlined here:

Note

The image capture methods were developed by Unmesh Gundecha, and published by Packt Publishing in the reference book Selenium Testing Tools Cookbook - Second Edition. The book is available at https://www.packtpub.com/web-development/selenium-testing-tools-cookbook-second-edition.

/**
 * Image Capture and Compare Class
 * 
 * @author Name
 * 
 */
public class ImageCapture {
    // constructor
    public ImageCapture() throws Exception {
    }

...

The capture screen method

There are many ways to capture and name the image of the screen. Using the test method name...