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pytest-mock is currently the #3 pytest plugin. pytest-mock is a wrapper around unittest.mock. In this episode: Why the pytest-mock plugin is awesome What is mocking, patching, and monkey patching What, if any, is the difference between mock, fake, spy, stub. Why we might need these in testing Some history of mock in Python and how mock became unittest.mock From unittest.mock patch.object patch.object with autospec using these as context managers pytest-mock: The mocker fixture Cleanup in teardown Using mocker.patch, mocker.spy, and mocker.stub Why it's awesome and why you might want to use…

Test & Code

by Brian Okken · English · Tech & Science

The Python Test Podcast hosted by Brian Okken

More from Test & Code

  1. E229 · 27 Mar 2025 · 6 min

    229: pytest-html - a plugin that generates HTML reports for test results

    pytest-html has got to be one of my all time favorite plugins. pytest-html is a plugin for pytest that generates a HTML report for test results. This episode digs into some of the super coolness of pytest-html. pytest-html repo readme with screenshot enhancing reports pytest-metadata

  2. E228 · 1 Mar 2025 · 10 min

    228: pytest-md and pytest-md-report: Markdown reports for pytest

    Markdown reports as either text or markdown tables. Two fun plugins discussed. Links: pytest-md-report pytest-md Top pytest Plugins

  3. E227 · 7 Feb 2025 · 48 min

    227: Mocking in Python with unittest.mock - Michael Foord

    This episode is a replay of a 2021 interview I did with Michael Foord. We lost Michael in January, and I'd like to revisit this interview as a tribute. Michael Foord was a pivotal figure in the Python community and the creator of the mock library that's now unittest.mock. But he did so much more as well. His contributions continue to resonate within the developer community. This interview is just a small peek at his influence. In this episode Introduction to Michael Foord The Mock Library Origins Mocking and Testing Philosophy Career Path and Consulting Understanding Mocking The Power of…

  4. E225 · 23 Jan 2025 · 12 min

    225: pytest-cov : The pytest plugin for measuring coverage

    pytest-cov is a pytest plugin that helps produce coverage reports using Coverage.py. In this episode, we'll discuss: what Coverage.py is why you should measure code coverage on both your source and test code what pytest-cov is extra features pytest-cov gives you over and above coverage.py and generally why using both is awesome Links: coverage.py pytest-cov how to set up context reports Top pytest Plugins Errata: I mentioned that Coverage has the ability to show context (which line is covered by which test) for the past year or so. However, that feature was released in Oct 2018. coverage 5.0…

  5. E224 · 10 Jan 2025 · 12 min

    224: pytest plugins - a full series

    This episode kicks off a series on pytest plugins. In this episode: Introduction to pytest plugins The pytest.org pytest plugin list Finding pytest related packages on PyPI The Top pytest plugins list on pythontest.com Exploring popular plugins Learning from plugin examples Links: Top pytest plugins list pytest.org plugin list Top PyPI Packages And links to plugins mentioned in the show can be found at pythontest.com/top-pytest-plugins

  6. E223 · 17 Nov 2024 · 22 min

    223: Writing Stuff Down is a Super Power

    Taking notes well can help to listen better, remember things, show respect, be more accountable, free up mind space to solve problems. This episode discusses the benefits of writing things down preparing for a meeting taking notes in meetings reviewing notes for action items, todo items, things to follow up on, etc. taking notes to allow for better focus writing well structured emails writing blog posts and books

  7. E238 · 15 Aug 2025 · 2 min

    238: So Long, and Thanks for All the Fish

    A farewell to a fun 10 years. Also, I should have tested it better. :) In the audio I got the numbers wrong. Doh! This is episode 238, not 237. Oh well. I'll still be around, of course, at: pythontest.com - where I write about developing software with tests pythonbytes.fm - Python news and headlines, delivered directly to your earbuds Thanks for all the fun over the last 10 years. I wish you the best.

  8. E237 · 11 Aug 2025 · 36 min

    237: FastAPI Cloud - Sebastián Ramírez

    In this episode, Brian interviews Sebastián Ramírez, creator of FastAPI, about its rapid rise in developer popularity and the launch of FastAPI Cloud. Sebastian explains how FastAPI Cloud addresses deployment challenges small teams face. He shares his transition from open-source to startup founder, focusing on simplifying deployment against the complexity of tools like Kubernetes. Links: FastAPI Cloud FastAPI SQLModel Typer OpenAPI Pydantic Sequoia Open Source Fellowship

  9. E236 · 30 Jul 2025 · 20 min

    236: Git Tips for Testing - Adam Johnson

    In this episode, host Brian Okken and guest Adam Johnson explore essential Git features, highlighted by Adam's updated book, "Boost Your Git DX." Key topics include "cherry picking" for selective commits "git stash" for managing in-progress work "git diff", and specifically its `--name-only` flag, which provides a streamlined method for developers to identify which files have changed, which can be used to determine which tests need to be run "git bisect" for efficiently pinpointing bugs. This conversation offers valuable strategies for developers at any skill level to enhance their Git…

  10. E235 · 22 Jul 2025 · 20 min

    235: pytest-django - Adam Johnson

    In this episode, special guest Adam Johnson joins the show and examines pytest-django, a popular plugin among Django developers. He highlights its advantages over the built-in unittest framework, including improved test management and debugging. Adam addresses transition challenges, evolving fixture practices, and offers tips for optimizing test performance. This episode is a concise guide for developers looking to enhance their testing strategies with pytest-django. Links: pytest-django - a plugin for pytest that provides a set of useful tools for testing Django applications and projects.

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