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We've got some code we want to test, and some tests.
The tests need to be able to import the code under test, or at least the API to it, in order to run tests against it.
How do we do that? How do we set things up so that our tests can import our code?In this episode, we discuss two options:
Installing the code under test as a pip installable package with `pip install -e /path/to/local/package`.Using the pythonpath pytest setting.Sponsored by Mailtrap.io
An Email Delivery Platform that developers love. An email-sending solution with industry-best analytics, SMTP, and email API, SDKs for major programming languages, and 24/7 human support. Try for Free at MAILTRAP.IOSponsored by The Complete pytest Course
For the fastest way to learn pytest, go to courses.pythontest.comWhether your new to testing or pytest, or just want to maximize your efficiency and effectiveness when testing. -
PyCon US is just around the corner. I've asked Rob Ludwick to come on the show to discuss how to get the most out of your PyCon experience. There's a lot to do. A lot of activities to juggle, including actual juggling, which is where we start the conversation.
Even if you never get a chance to go to PyCon, I hope this interview helps you get a feel for the welcoming aspect of the Python community.
I recorded this interview as an episode for one of my other podcasts, Python People. But I think it's got some great pre-conference advice, so I'm sharing it here on Python Test as well.
We talk about:
- Juggling at PyCon
- How to get the most out of PyCon
- Watching talks
- Hallway track
- Open spaces
- Lightening talks
- Expo hall / vendor space
- Poster sessions
- Job fair
- A welcoming community
- Tutorials
- Sprints
- But mostly about the people of Python and PyCon."Python enables smart people to work faster" - Rob Ludwick
Sponsored by Mailtrap.io
An Email Delivery Platform that developers love. An email-sending solution with industry-best analytics, SMTP, and email API, SDKs for major programming languages, and 24/7 human support. Try for Free at MAILTRAP.IOSponsored by PyCharm Pro
Use code PYTEST for 20% off PyCharm Professional at jetbrains.com/pycharmNow with Full Line Code CompletionSee how easy it is to run pytest from PyCharm at pythontest.com/pycharmThe Complete pytest Course
For the fastest way to learn pytest, go to courses.pythontest.comWhether your new to testing or pytest, or just want to maximize your efficiency and effectiveness when testing. -
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I'm starting a SaaS project using Django, and there are tons of decisions right out of the gate.
To help me navigate these decisions, I've brought on Cory Zue.
Cory is the creator of SaaS Pegasus, and has tons of experience with Django.Some of the topics discussed:
Building Django applicationsSaaS Pegasusplacecard.meWhat boilerplate projects areDjango cookiecutterCookiecutterWhich database to use, probably PostgreSQLAuthentication choises, probably AllauthDocker, Docker for development, Docker for deploymentDeployment targets / hosting services. Render, Heroku, Fly.io, for PaaS options.Front end frameworks. Bootstrap, Tailwind, DaisyUI, TailwindUIHTMX vs React vs straight Django templatesRocketsFont Awesomeand of course, SaaS PegasusSponsored by Mailtrap.io
An Email Delivery Platform that developers love. An email-sending solution with industry-best analytics, SMTP, and email API, SDKs for major programming languages, and 24/7 human support. Try for Free at MAILTRAP.IOSponsored by PyCharm Pro
Use code PYTEST for 20% off PyCharm Professional at jetbrains.com/pycharmNow with Full Line Code CompletionSee how easy it is to run pytest from PyCharm at pythontest.com/pycharmThe Complete pytest Course
For the fastest way to learn pytest, go to courses.pythontest.comWhether your new to testing or pytest, or just want to maximize your efficiency and effectiveness when testing. -
Nicole is a software engineer and writer, and recently wrote about the trade-offs we make when deciding which tests to write and how much testing is enough.
We talk about:
Balancing schedule vs testingHow much testing is the right about of testingShould code coverage be measured and trackedGood refactoring can reduce code coverageIs it worth testing error conditions?Are rare error codes ok to just monitor?API drift and autospecMitigating riskDeciding what to test and what not to testFocus testing on key money-making features If there's a bug in this part of the code, how much business impact is there?Performance testing needs to approximately match real world workloadsCost of a service breaking vs the cost of creating, maintaining, and running testsKeeping test suites quick to minimize getting distractedLinks:
Too much of a good thing: the trade-off we make with tests Load testing is hard, and the tools are... not great. But why?Yet Another Rust Resource (YARR!)Goodhart's law - "When a measure becomes a target, it ceases to be a good measure"Sponsored by Mailtrap.io
An Email Delivery Platform that developers love. An email-sending solution with industry-best analytics, SMTP, and email API, SDKs for major programming languages, and 24/7 human support. Try for Free at MAILTRAP.IOSponsored by PyCharm Pro
Use code PYTEST for 20% off PyCharm Professional at jetbrains.com/pycharmNow with Full Line Code CompletionSee how easy it is to run pytest from PyCharm at pythontest.com/pycharmThe Complete pytest Course
For the fastest way to learn pytest, go to courses.pythontest.comWhether your new to testing or pytest, or just want to maximize your efficiency and effectiveness when testing. -
If you've ever thought about starting a podcast or a SaaS project, you'll want to listen to this episode.
Justin is one of the people who motivated me to get started podcasting.
He's also running a successful SaaS company, transistor.fm, which hosts this podcast.Topics:
PodcastingBuilding new SaaS (software as a service) productsBalancing work, side hustle, and familyGreat places to snowboard in British ColumbiaBTW. This episode was recorded last summer before I switched to transistor.fm.
I'm now on Transistor for most of a year now, and I love it.Links from the show:
Transistor.fm - excellent podcast hosting, Justin is a co-founderHow to start a podcast in 2024Podcasts from JustinBuild your SaaS - currentBuild & Launch - an older one, but greatMegaMaker - from 2021 / 2022Sponsored by Mailtrap.io
An Email Delivery Platform that developers love. An email-sending solution with industry-best analytics, SMTP, and email API, SDKs for major programming languages, and 24/7 human support. Try for Free at MAILTRAP.IOSponsored by PyCharm Pro
Use code PYTEST for 20% off PyCharm Professional at jetbrains.com/pycharmNow with Full Line Code CompletionSee how easy it is to run pytest from PyCharm at pythontest.com/pycharmThe Complete pytest Course
For the fastest way to learn pytest, go to courses.pythontest.comWhether your new to testing or pytest, or just want to maximize your efficiency and effectiveness when testing. -
Charlie Marsh and team are using Rust to make Python tooling faster.
Ruff can take the place of Flake8, isort, and Black, and so much more.uv can take the place of pip, pip-tools, and virtualenvAstral is Charlie's venture backed company, and what they have with `ruff` and `uv` is just the start.Since uv is the newest tool, there's quite a bit of the discussion diving into uv.
Links:
ruffAstraluvSponsored by PyCharm Pro
Use code PYTEST for 20% off PyCharm Professional at jetbrains.com/pycharmFirst 10 to sign up this month get a free month of AI AssistantSee how easy it is to run pytest from PyCharm at pythontest.com/pycharmThe Complete pytest Course
For the fastest way to learn pytest, go to courses.pythontest.comWhether your new to testing or pytest, or just want to maximize your efficiency and effectiveness when testing. -
Software engineers that move into leadership roles have a struggle between learning leadership skills, maintaining technical skills, and learning new leadership and technical skills.
Matt Makai went from individual contributor to developer relations to leadership in devrel.
We discuss how to stay technical, as well as dive into some results of his studies in how companies use developer relationship channels.Sponsored by PyCharm Pro
Use code PYTEST for 20% off PyCharm Professional at jetbrains.com/pycharmFirst 10 to sign up this month get a free month of AI AssistantSee how easy it is to run pytest from PyCharm at pythontest.com/pycharmThe Complete pytest Course
For the fastest way to learn pytest, go to courses.pythontest.comWhether your new to testing or pytest, or just want to maximize your efficiency and effectiveness when testing. -
If you haven't tried running automated tests, especially with pytest, in VS Code recently, you should take another look.
The Python for VS Code interface for testing, especially for pytest, has changed recently.
On this episode we discuss the change with the software engineer working on the pytest changes, Eleanor Boyd, and the product manager, Courtney Webster.Links from the episode:
Blog post announcing the rewrite Code repo for questions, comments, issues etcThe Complete pytest Course
Level up your testing skills and save time during coding and maintenance.Check out courses.pythontest.com -
If a test fails in a test suite, I'm going to want to re-run the test. I may even want to re-run a test, or a subset of the suite, a bunch of times.
pytest-repeatpytest-rerunfailurespytest-flakefinderpytest-instafail
There are a few pytest plugins that help with this:We talk about each of these in this episode.
Sponsored by PyCharm Pro
Use code PYTEST for 20% off PyCharm Professional at jetbrains.com/pycharmFirst 10 to sign up this month get a free month of AI AssistantSee how easy it is to run pytest from PyCharm at pythontest.com/pycharmThe Complete pytest Course
For the fastest way to learn pytest, go to courses.pythontest.comWhether your new to testing or pytest, or just want to maximize your efficiency and effectiveness when testing. -
In 2002, Kent Beck released a book called "Test Driven Development by Example".
In December of 2023, Kent wrote an article called "Canon TDD".
With Kent's permission, this episode contains the full content of the article.Brian's commentary is saved for a followup episode.
Links:
Canon TDDTest Driven Development by ExampleThe Complete pytest Course
Level up your testing skills and save time during coding and maintenance.Check out courses.pythontest.com -
We want to be able to run tests in a suite, and debug them in isolation, and have the behavior be the same.
If the behavior is different in isolation vs in a suite, it's a nightmare to debug.In this episode, we'll talk about:
Causes of dependenceTesting for dependencies using pluginsDebugging test dependenciesPlugins discussed:
pytest-randomlypytest-reversepytest-random-orderSponsored by PyCharm Pro
Use code PYTEST for 20% off PyCharm Professional at jetbrains.com/pycharmFirst 10 to sign up this month get a free month of AI AssistantSee how easy it is to run pytest from PyCharm at pythontest.com/pycharmThe Complete pytest Course
For the fastest way to learn pytest, go to courses.pythontest.comWhether your new to testing or pytest, or just want to maximize your efficiency and effectiveness when testing. -
Test Driven Development. Red, Green, Refactor.
Do we have to do the refactor part? Does the refactor at the end include tests? Or can I refactor the tests at any time?Why is refactor at the end?This episode is to talk about this with a an example.
Sponsored by PyCharm Pro
Use code PYTEST for 20% off PyCharm Professional at jetbrains.com/pycharmFirst 10 to sign up this month get a free month of AI AssistantSee how easy it is to run pytest from PyCharm at pythontest.com/pycharmThe Complete pytest Course
For the fastest way to learn pytest, go to courses.pythontest.comWhether your new to testing or pytest, or just want to maximize your efficiency and effectiveness when testing. -
How do you test the argument parsing bit of an application that uses argparse?
This episode covers:
Design for Test: Structuring your app or script so it's easier to test.pytest & capsys for testing stdoutAdding debug and preview flags for debugging and testingAnd reverting to subprocess.run if you can't modify the code under testAlso, there's a full writeup and code samples available:
Blog post: Testing argparse Applications Code RepoThe Complete pytest Course
Level up your testing skills and save time during coding and maintenance.Check out courses.pythontest.com -
Why on earth would you want to write a test with no assert statements?
After all, aren't assert statements how you decide wether a test passes or fails?In this episode, we walk through a handful of useful examples of test code without asserts.
We also talk about how these types of tests are a great way to dip your toe into testing.Sponsored by PyCharm Pro
Use code PYTEST for 20% off PyCharm Professional at jetbrains.com/pycharmFirst 10 to sign up this month get a free month of AI AssistantSee how easy it is to run pytest from PyCharm at pythontest.com/pycharmThe Complete pytest Course
For the fastest way to learn pytest, go to courses.pythontest.comWhether your new to testing or pytest, or just want to maximize your efficiency and effectiveness when testing. -
Podcast name: "Test & Code" -> "Python Test"Python Bytes PodcastPython People PodcastPython Test Podcast <- you are herewhich is still, at least for now, at testandcode.comNew course: "The Complete pytest Course"pytest-repeat, which I'm starting to contribute toGive `--repeat-scope` a try. You can use it to change from repeating every test to repeating the session, module, or class.pytest-flakefinder, which is an alternative to pytest-repeatpytest-check is completely unrelated, but mentioned in the show
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TDD (Test Driven Development) started from Test First Programming, and has been around at least since the 90's.
However, software tools and available CI systems have changed quite a bit since then.
Maybe it's time to re-examine the assumptions, practices, processes, and principles of TDD.
At least in the context of my software engineering career, modifications to TDD, at least the version of TDD as it's frequently taught, have been necessary.This is the start of a series focused on examining TDD and related lightweight practices and processes.
Links from the show:
From XPTest FirstUnit TestsAcceptance TestsTest-Driven Development (wikipedia) -
On a recent episode of PythonBytes, I suggested it's hard to come up with good examples for pytest autouse fixtures, as there aren't very many good reasons to use them. James Falcon was kind enough to reach out and correct me.
In this episode, we describe:
what fixtures arewhat autouse fixtures aregreat reasons to use them -
Learn how to write nonfiction fast and well.
Johanna Rothman joins the show to discuss writing nonfiction.Johanna's book: Free Your Inner Nonfiction Writer
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Open Source is important to Intel and has been for a very long time.
Joe Curley, vice president and general manager of software products and ecosystem, and Arun Gupta, vice president and general manager for open ecosystems, join the show to discuss open source, OneAPI, and open ecosystems at Intel.
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Hynek joins the show to discuss towncrier.
At the top of the towncrier documentation, it says "towncrier is a utility to produce useful, summarized news files (also known as changelogs) for your project."
Towncrier is used by "Twisted, pytest, pip, BuildBot, and attrs, among others."
This is the last of 3 episodes focused on keeping a CHANGELOG.
Episode 200 kicked off the series with keepachangelog.com and Olivier Lacan
In 201 we had Ned Batchelder discussing scriv.Special Guest: Hynek Schlawack.
Links:
Towncrier docsHow to Keep a Changelog in Markdown - Towncrier docsKeep a Changelogstructlog/CHANGELOG.md — Example of manually edited changelog.hatch-fancy-pypi-readmeMyST Markdown hatchling - Daha fazla göster
