Testing Python Applications: Test-Driven Development with pytest and unittest

Master the art of writing reliable, maintainable, and scalable Python code with Testing Python Applications—your definitive guide to Test-Driven Development (TDD) using the industry-standard Pytest and Unittest frameworks. Whether you're a seasoned developer or just starting out, this hands-on book walks you through the core principles of automated testing, empowering you to catch bugs early, refactor fearlessly, and build confidence in every release.

You'll start by understanding the TDD mindset, then dive into real-world examples covering unit tests, test coverage, mocks, fixtures, parameterized testing, and CI/CD integration. Learn how to test everything from simple functions to complex web applications and APIs. With best practices, anti-patterns, and tips for both legacy and greenfield codebases, this book is a practical blueprint for writing testable, production-grade Python software.

Whether you're developing microservices, data pipelines, or web apps, Testing Python Applications equips you with the tools and mindset to write code that works—every time.

Perfect for: Python developers, QA engineers, software architects, and anyone ready to level up their testing game.