Testing your Plone codebase with Pytest

Plone 6 is out, and now you create your new CMS project with a cookiecutter template, install it with pip, format the code with black, and deploy it with Docker. But you probably still test it as you did 10 or 15 years ago. Learn how to use Pytest with Plone, and make TDD fun again.

Over the last few years, the Plone community has been busy working on making Plone development more accessible to new developers with the adoption of well-known tools over homegrown solutions: The default installation of Plone is now based on pip, the recommended way to deploy is using containers, and if you want to bootstrap a new project, there is a cookiecutter template to do it. On the other hand, we still rely on the same patterns and snippets when testing the Python code of a Plone solution: Layers and test cases of Unittest, but there should be a better (more pythonic) way. Moving your tests from Unittest to Pytest is easy, and you gain access to all the features of the most comprehensive testing framework in the Python world.

In this talk, we will present the reasoning for choosing Pytest over Unittest, but also show how your tests will be easier to write and maintain.

Transcript

1. Plone codebase with Testing your @ericof @ericof@fosstodon.org pytest
2. Plone
3. The Leading Open-Source Python CMS Over 20 years of history Worldwide community Protected by the Plone Foundation
4. Secure, Accessible and Future-proof Proven security record Focus on accessibility and usability Headless support
5. Testing with Plone "Untested code is broken code" First test: 2002-10-07 unittest Robot Framework, Selenium, Cypress
6. Testing Plone 20 years of tests Plone 5.2, Plone 6.0 Python 2.7, 3.7, 3.8, 3.9. 3.10, 3.11
7. pytest
8. Simple & "Pythonic" Dependency injection Large ecosystem Support for unittests I ❤ pytest
9. unittest pytest
10. Plone pytest
11. pytest-plone Built on top of gocept.pytestlayer Provides Fixtures and Helpers Already in use in many projects
12. collective.casestudy
13. contentrules.slack
14. Join us
15. CREDITS: This presentation template was created by Slidesgo, including icons by Flaticon, and infographics & images by Freepik. Obrigado! Érico Andrei ericof@plone.org @ericof ericof @ericof@fosstodon.org https://speakerdeck.com/ericof https://speakerdeck.com/ericof/testing-your-plone-codebase-with-pytest