Book Image

Test-Driven Python Development

By : Siddharta Govindaraj
Book Image

Test-Driven Python Development

By: Siddharta Govindaraj

Overview of this book

This book starts with a look at the test-driven development process, and how it is different from the traditional way of writing code. All the concepts are presented in the context of a real application that is developed in a step-by-step manner over the course of the book. While exploring the common types of smelly code, we will go back into our example project and clean up the smells that we find. Additionally, we will use mocking to implement the parts of our example project that depend on other systems. Towards the end of the book, we'll take a look at the most common patterns and anti-patterns associated with test-driven development, including integration of test results into the development process.
Table of Contents (20 chapters)
Test-Driven Python Development
About the Author
About the Reviewers


In this chapter, you looked at how to use mocks to test interactions between objects. You saw how to hand write our own mocks, followed by using the mocking framework provided in the Python standard library. Next, you saw how to use patching for more advanced mocking. We wrapped it up by looking at a slightly more complex mocking example that had us put all the mocking techniques into practice.

So far you have been looking at writing tests for new code. In the next chapter, you will take a look at how to deal with existing code that does not have tests.