Book Image

Mastering Selenium WebDriver

By : Mark Collin
Book Image

Mastering Selenium WebDriver

By: Mark Collin

Overview of this book

<p>Selenium WebDriver, also known as Selenium 2, is a UI automation tool used by software developers and QA engineers to test their web applications on different web browsers. The Selenium WebDriver API is fully object oriented compared with the deprecated Selenium RC. The WebDriver API provides multi-language support and run tests on all the most popular browsers.</p> <p>In this wide and complex World Wide Web era, this book will teach you how to tame it by gaining an in-depth understanding of the Selenium API.</p> <p>This book starts with how to solve the difficult problems that you will undoubtedly come across as you start using Selenium in an enterprise environment, followed by producing the right feedback when failing, and what the common exceptions are, explain them properly (including the root cause) and tell you how to fix them. You will also see the differences between the three available implicit waits and explicit waits, and learn to working with effective page objects.</p> <p>Moving on, the book shows you how to utilize the Advanced User Interactions API, how you can run any JavaScript you need through Selenium, and how to quickly spin up a Selenium Grid using Docker containers.</p> <p>At the end, the book will discuss the upcoming Selenium W3C specification and how it is going to affect the future of Selenium.</p>

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Mastering Selenium WebDriver
Mark Collin
Aug, 2015 | 280 pages
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Table of Contents (17 chapters)
Mastering Selenium WebDriver
Mastering Selenium WebDriver
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Creating a Fast Feedback Loop
Creating a Fast Feedback Loop
Making it easy for developers to run tests
Building our test project with Apache Maven
Running your tests in parallel
Parallel tests with TestNG
There are no silver bullets
Multiple browser support
Downloading the WebDriver binaries automatically
Going headless
Summary
2
Producing the Right Feedback When Failing
Producing the Right Feedback When Failing
Location, location, location
Tests are living documentation
Reliability
Baking in reliability
Continuous integration is the key
Extending our capabilities by using a Selenium Grid
A picture paints a thousand words
Don't be afraid of the big bad stack trace
Summary
3
Exceptions Are Actually Oracles
Exceptions Are Actually Oracles
Are exceptions oracles?
NoSuchElementException
NoSuchFrameException
NoSuchWindowException
ElementNotVisibleException
StaleElementReferenceException
InvalidElementStateException
UnsupportedCommandException
UnreachableBrowserException
SessionNotFoundException
Summary
4
The Waiting Game
The Waiting Game
Are we nearly ready yet?
I've timed it and I know it takes 5 seconds for the page to load
So, what do we do?
I just want Selenium to do it for me
Using explicit waits
FluentWaits – the core of explicit waits
Summary
5
Working with Effective Page Objects
Working with Effective Page Objects
Why do you keep repeating yourself?
Starting out with page objects
Using page objects to ensure good separation of concerns
Introducing the Java PageFactory class
Creating extensible page objects
Turning your page objects into a readable domain-specific language
Fluent page objects
Summary
6
Utilizing the Advanced User Interactions API
Utilizing the Advanced User Interactions API
Getting started with the API
Using the API to solve difficult problems
Summary
7
JavaScript Execution with Selenium
JavaScript Execution with Selenium
Introducing the JavaScript executor
Let's not get carried away
So, what should we do with it?
I want to see a more complex example!
Can I use JavaScript libraries?
Should I inject JavaScript libraries?
What about asynchronous scripts?
Summary
8
Keeping It Real
Keeping It Real
Downloading files with Selenium
You cannot track the network traffic with Selenium
But I really want to track my network traffic!
Writing performance tests with Selenium
Penetration testing with Selenium
Summary
9
Hooking Docker into Selenium
Hooking Docker into Selenium
Introducing Docker
Installing Docker
Spinning up a Selenium Grid with Docker
Running tests against our new Selenium Grid
Starting up Docker containers as part of the build
Using a Docker Maven plugin
The future with Docker
Summary
10
Selenium – the Future
Selenium – the Future
Selenium – the future of browser and device testing
If Selenium is the future, how can I help?
Making changes to Selenium
Summary
Index
Index

Running tests against our new Selenium Grid

We now know how to quickly spin up Selenium Grid, but so far, we haven't seen it in action. Let's face it. It's not of much use if we can't use it to run some tests. If you have shut down Selenium Grid, you will need to start it up again:

docker run -d -p 4444:4444 --name selenium-hub selenium/hub:2.45.0
docker run -d --link selenium-hub:hub selenium/node-chrome:2.45.0
docker run -d --link selenium-hub:hub selenium/node-firefox:2.45.0

Next, we are going to reuse the Selenium framework that we built in Chapter 1, Creating a Fast Feedback Loop, and Chapter 2, Producing the Right Feedback When Failing. It already supports connections to Selenium Grid. So, we just need to specify the URL of the grid.

If you are using boot2docker on Windows or OS X, this is going to require a little bit of configuration because we can't connect to localhost to interact with Docker. Instead, we need to use a command to find out the IP address that the boot2docker VM is...

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