Awesome Pytest Resources - A Comprehensive Collection of Testing Resources

This list contains a bunch of links to pytest resources that should be valuable to beginners as well as intermediates or more senior folks.

Books

• Python Testing with pytest 2nd Edition (Brian Okken): Really comprehensive in-depth book that covers all the basics not only in theory but also has many step-by-step working examples. Brian has also released a accompanying course that is also linked below. But this book is definitely a great starting point to learn how pytest works.

Online Resources

Websites

• Official pytest docs: This is the official pytest documentation site which should give you everything you need to know to install and configure pytest on your machine. You'll also find a bunch of guides for specific reference topics and how-to start guides:
  • Fixtures Reference
  • Configuration
  • Talks and Tutorials: Officially maintained list of talks and tutorials.

Courses

• PyCon / EuroPython
  • Pandy Knight: def test_crash_course_with_pytest(): This recording of a workshop session from Pycon US 2024 really matches its title. Pandy Knight gives a really comprehensive crash course to pytest covering all the relevant topics on not only how pytest works but also on how to use it professionally.
  • Florian Bruhin: pytest - simple, rapid and fun testing with Python (3 hours): Content-wise pretty similar to Pandy Knight's crash course but presented in a different style (the dude is one of pytest's maintainers).
• Brian Okken's - The Complete pytest Course (Companion to the Python Testing with pytest book): This online course accompanies the book mentioned at the beginning. While I haven't started it yet, Brian's work (e.g., his writings) is typically of high quality.
• calmcode.io: calmcode is a treasure trove of small, comprehensive, to-the-point mini-courses on a variety of Python topics. They offer two short, worthwhile courses on pytest:
  • pytest/introduction
  • pytest-tricks/parametrize-twice

Blogs, Articles & Tutorials

• Brian Okken's blog about pytest: Authored by the writer of the aforementioned book and course.
• Pytest With Eric: This blog lives up to its URL, covering a variety of pytest-related topics in an easy-to-digest writing style. It features both in-depth explorations of specific topics and broader, more general subjects:
  • Python Testing 101 (How To Decide What To Test)
  • How To Practice Test-Driven Development In Python? (Deep Dive)
  • How To Mock in Pytest? (A Comprehensive Guide)
  • What Are Pytest Mock Assert Called Methods and How To Leverage Them
  • A Step-by-Step Guide To Using Pytest Fixtures With Arguments?
  • Mocking Vs. Patching (A Quick Guide For Beginners)
  • Introduction To Pytest Hooks (A Practical Guide For Beginners)
  • 5 Easy Ways To Read JSON Input Data In Pytest
  • A Simple Guide To Controlling Time in Pytest Using Freezegun
  • How To Ignore Warnings In Pytest (With Examples)
  • The Ultimate Guide To Capturing Stdout/Stderr Output In Pytest
  • How To Test CLI Applications With Pytest, Argparse And Typer
  • How To Test And Build Python Packages With Pytest, Tox And Poetry

Videos / Talks

• PyCon / EuroPython
  • Raphael Pierzina - Advanced pytest (focused on how to implement/use pytest plugins)
  • [PyCon JP 2022] Building Pytest Plugins (Phebe Polk) - References the talk by Raphael Pierzina
  • Talks - Dan Craig: Testing Spacecraft with Pytest
  • Florian Bruhin: pytest - simple, rapid and fun testing with Python (3 hours)
  • "Securing your AWS Identity Management pipeline with PyTest" - Sean Johnson (PyCon AU 2019)
• Arjan Codes
  • How To Write Unit Tests For Existing Python Code // Part 1 of 2
  • How To Write Unit Tests For Existing Python Code // Part 2 of 2
• mCoding
  • Automated Testing in Python with pytest, tox, and GitHub Actions
• Cameron Maske
  • Pytest Course (6 Videos)