Book Image

Mastering Selenium WebDriver 3.0 - Second Edition

Book Image

Mastering Selenium WebDriver 3.0 - Second Edition

Overview of this book

The second edition of Mastering Selenium 3.0 WebDriver starts by showing you how to build your own Selenium framework with Maven. You'll then look at how you can solve the difficult problems that you will undoubtedly come across as you start using Selenium in an enterprise environment and learn how to produce the right feedback when failing. Next, you’ll explore common exceptions that you will come across as you use Selenium, the root causes of these exceptions, and how to fix them. Along the way, you’ll use Advanced User Interactions APIs, running any JavaScript you need through Selenium; and learn how to quickly spin up a Selenium Grid using Docker containers. In the concluding chapters, you‘ll work through a series of scenarios that demonstrate how to extend Selenium to work with external libraries and applications so that you can be sure you are using the right tool for the job.
Table of Contents (15 chapters)

Fluent waits, the core of explicit waits

At the core of explicit waits is the incredibly powerful fluent wait API. All WebDriverWait objects extend FluentWait. So, why would we want to use FluentWait?

Well, we get more granular control of the wait object, and we can easily specify exceptions to ignore. Let's have a look at an example:

Wait<WebDriver> wait = new FluentWait<>(driver)
.withTimeout(Duration.ofSeconds(15))
.pollingEvery(Duration.ofMillis(500))
.ignoring(NoSuchElementException.class)
.withMessage("The message you will see in
if a TimeoutException is thrown"
);

As you can see, in the preceding code snippet, we have created a wait object with a 15-second timeout that polls every 500 milliseconds to see whether a condition is met. We have decided that while waiting for our condition to become true, we want to...