Book Image

Selenium WebDriver Quick Start Guide

By : Pinakin Chaubal
Book Image

Selenium WebDriver Quick Start Guide

By: Pinakin Chaubal

Overview of this book

Selenium WebDriver is a platform-independent API for automating the testing of both browser and mobile applications. It is also a core technology in many other browser automation tools, APIs, and frameworks. This book will guide you through the WebDriver APIs that are used in automation tests. Chapter by chapter, we will construct the building blocks of a page object model framework as you learn about the required Java and Selenium methods and terminology. The book starts with an introduction to the same-origin policy, cross-site scripting dangers, and the Document Object Model (DOM). Moving ahead, we'll learn about XPath, which allows us to select items on a page, and how to design a customized XPath. After that, we will be creating singleton patterns and drivers. Then you will learn about synchronization and handling pop-up windows. You will see how to create a factory for browsers and understand command design patterns applicable to this area. At the end of the book, we tie all this together by creating a framework and implementing multi-browser testing with Selenium Grid.
Table of Contents (10 chapters)


We are going to learn about a very important topic in this chapter: synchronization in Selenium WebDriver. Until now, we have been using Thread.sleeep to unconditionally wait for a web element to appear on screen. This is not suitable when network speed is good because the code will keep on waiting until the specified time, even though the element has already been rendered on screen. We will see some examples of the synchronization methods available to us and learn about the differences between each of the methods. We will, as always, dissect each method and study its class hierarchy.

This chapter covers the following topics

  • What is synchronization?
  • Different types of synchronization
  • Creating a sample page in JavaScript
  • Understanding implicit wait
  • Understanding explicit wait and the ExpectedConditions class
  • Understanding fluent wait