The Testing Goat

Obey the Testing Goat!

TDD for the Web, with Python, Selenium, Django, JavaScript and pals...

The print book is available!

Tue 08 July 2014
By Harry

My copy of the print edition arrived in the post!

Harry holding his own book
I am my own customer...

(OK that actually happened last month. This post is a little late. I was distracted by Oscons and stuff!)

Anyway, that's it, it's officially available. If you've been reading the free online version and have been holding out until the print version comes out, now's the time!

Or, if you've been waiting for the print version to come out before recommending the book to a friend, or buying a book for your local usergroup, or whatever it'll be, you know...

The online version will always be free and licensed under creative commons. I'll just link to the acknowledgements chapter, since it really wouldn't have been possible without all the help I got:

It's been a crazy 18 months. Happy reading everyone!


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Read the book

The book is available both for free and for money. It's all about TDD and Web programming. Read it here!

Reviews & Testimonials

"Hands down the best teaching book I've ever read""Even the first 4 chapters were worth the money""Oh my gosh! This book is outstanding""The testing goat is my new friend"Read more...


A selection of links and videos about TDD, not necessarily all mine, eg this tutorial at PyCon 2013, how to motivate coworkers to write unit tests, thoughts on Django's test tools, London-style TDD and more.

Old TDD / Django Tutorial

This is my old TDD tutorial, which follows along with the official Django tutorial, but with full TDD. It badly needs updating. Read the book instead!

Save the Testing Goat Campaign

The campaign page, preserved for history, which led to the glorious presence of the Testing Goat on the front of the book.