Test-Driven Development with Python, 3rd Edition

Chapter 14. Validation at the Database Layer

A Note for Early Release Readers

With Early Release ebooks, you get books in their earliest form—the author’s raw and unedited content as they write—so you can take advantage of these technologies long before the official release of these titles.

This will be the 14th chapter of the final book. The GitHub repo is available at https://github.com/hjwp/book-example.

If you have comments about how we might improve the content and/or examples in this book, or if you notice missing material within this chapter, please reach out to the author at [e-mail].

Over the next few chapters we’ll talk about testing and implementing validation of user inputs.

In terms of content, there’s going to be quite a lot of material here that’s more about the specifics of Django, and less discussion of TDD philosophy. That doesn’t mean you won’t be learning anything about testing—​there are plenty of little testing tidbits in here, but perhaps it’s more about really getting into the swing of things, the rhythm of TDD, and how we get work done.

Once we get through these three short chapters, I’ve saved a bit of fun with JavaScript (!) for the end of Part II. Then it’s on to [Link to Come], where I promise we’ll get right back into some of the real nitty-gritty discussions in TDD methodology—​unit tests versus integrated tests, mocking, and more. Stay tuned!

But for now, a little validation. Let’s just remind ourselves where our FT is pointing ...