In this week’s workshop, we applied TDD to legacy software. We also wrote down what lessons we can take away for other projects: https://python-basics-tutorial.readthedocs.io/en/latest/test/methods/legacy.html
#TDD #Legacy #Software #DX

New unit tasting framework dropped.
#tdd

Alt...

Dishwashing soap called Assert Lemon

"TDD isn't really about testing, as its name would imply. Rather, it's a design technique with low-level verification as a side effect."

#ai #tdd #namingisaprocess #continuousspecification

https://adamtornhill.substack.com/p/practices-i-abandoned-with-agents

What I’ve been reading week ending 13 September https://jchyip.medium.com/what-ive-been-reading-week-ending-13-september-5e2b202d4393 #AI #science #TDD #politics #cybersecurity

Here's an update on Best, with some background on why I'm building it, what is the current state of the API and CLI, how to install it, and how to follow, support, and get involved in the project.

https://www.bestbash.dev/blog/introducing-best/

#Bash #TDD #TestDrivenDevelopment

From the Leanpub Blog: Leanpub Book LAUNCH 🚀 10 More Days of Agentic Development by Daniel Scheufler

https://leanpub.com/blog/leanpub-book-launch-10-more-days-of-agentic-development-by-daniel-scheufler/

#books #leanpublishing #selfpublishing #AgenticDevelopment #AITooling #SDLC #PromptEngineering #TDD

NEW! Leanpub Book LAUNCH 🚀 10 More Days of Agentic Development by Daniel Scheufler

https://youtu.be/f6f69OaI7dw

#books #leanpublishing #selfpublishing #AgenticDevelopment #AITooling #SDLC #PromptEngineering #TDD

We are doing a coderetreat during SoCraTes Germany.and have started with the first constraint of ping pong.
Great co-facilitation with @mplavcan
#tdd #xp #coderetreat #socrates2026 #socrates26

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A Flipchart that describes the rules if the contraint of ping pong in a pair programming session during a coderetreat. Driver writes test, test fails. Keyboard gets passed on to the next person. That person as driver implements to make the test pass. After that they write a failing test and pass on the keyboard.

After a nice Sauna session I am learning to play the #TDD game from @jitterted.
#SoCraTes2026

Alt...

The starting configuration of the game

@j9t

Sorry, no, that's wrong. That's how names become meaningless. Would you be OK if I called what you did desktop development instead of web development? Of course not, they're different (each valuable in its own way).

If you don't want to follow what #TDD means, that is totally fine! But use another description. Test-first is a great phrase to use. Words mean things.

TDD without refactoring isn't TDD. TDD without small, careful steps, that inform design, isn't TDD.

RE: https://sfba.social/@jitterted/117111572228506941

Almost done packing all of the JitterTed's TDD Game boxes. Don't miss out!

#TDD

Cosima (she/her) boosted

Ted M. Young » 🌐 2026-08-17
@jitterted@sfba.social

RE: https://discuss.systems/@SoCraTes_UK/117110265795626737

A reminder that if you’re going to @SoCraTes_Conf next week, I can personally hand deliver a copy to you. Reserve a copy now! Reply here or ted at tedmyoung.com for details.

@j9t What you described isn't #TDD, it's maybe test-guided development or test-first. TDD isn't "write a test and get something to implement it", it's a design technique that takes tiny steps and requires human thought and judgment at each step to improve the design, especially through refactoring (which you didn't mention at all).

This is the first official release of Best, a new Bash automated testing framework focused on simplicity.

https://codeberg.org/paulshryock/best/releases/tag/v0.1.0

Feedback is welcome!

#Bash #TDD #TestDrivenDevelopment

I think this is a reminder that things humans do are not always automatable, especially understanding (building mental models) and design (active guidance of code changes).

#TDD #llmagents

https://martinfowler.com/articles/exploring-gen-ai/tdd-in-the-agent-loop.html

But like a disavowed Jungian shadow, if we suppress complexity in our conscious experience of creating tech, it’ll surface elsewhere and be harder to deal with. Now we have attack surfaces the agents didn’t know or care about; we have bugs that pass into production; we have infrastructural failures that were too hard to catch ahead of time. Just like last time, we’ll have to learn humility, empiricism, communalism, and all the rest. If we can.
#TDD #usercentereddesign #Agile #LLM #technology

In response to those demands we had developed #TDD, #usercentereddesign, #Agile and more, which all have in common a willingness to change ourselves as technologists in order to collaborate better with technology. But the immature dream of putting all the burden on tech survived. Now what we’ve apparently done is bury the resistance and complexity under indeterminacy so we don’t have to look at it up front. #LLM #technology

In TDD, you sometimes write code that looks obviously wrong on purpose — like hard-coding "0" instead of real logic. It feels uncomfortable. That discomfort is actually the point. Here's why. https://qualitycoding.org/swiftui-tdd-fake-it-till-you-make-it-part-2/ #TDD

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SwiftUI logo surrounded by Red → Green → Refactor → Integrate → back to Red

@afilina The magic of “that's all it really needs to do" is an underappreciated aspect of #TDD

Over the weekend I started developing "Best", a Bash testing framework with a focus on simplicity. The API and the terminal output are both heavily influenced by Jest and Pest. I will host the source code on Codeberg, and I'll be looking for anyone interested in trying it out and providing feedback.

#TestDrivenDevelopment #TDD #Bash

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Screenshot of a Debian terminal emulator running "/bin/best" which outputs test output similar to the output produced by other popular test runners like Jest and Pest. Passing tests are indicated with green check marks and failing tests are indicated with red X marks.

Want to refactor your SwiftUI views without worrying you'll break something? Here's the first test that makes that possible. https://qualitycoding.org/swiftui-tdd-fake-it-till-you-make-it-part-2/ #TDD

Developing SwiftUI Views with TDD: Red, Green, Refactor, Integrate https://qualitycoding.org/swiftui-tdd-fake-it-till-you-make-it-part-2/ #TDD

Alt...

SwiftUI logo surrounded by Red → Green → Refactor → Integrate → back to Red

From the Leanpub Blog: The Leanpub Podcast 🎙 Feat. Russ Miles, Author of The Sovereign Engineer: AI Literacy for Software Professionals

https://leanpub.com/blog/the-leanpub-podcast-feat-russ-miles-author-of-the-sovereign-engineer/

#books #leanpublishing #selfpublishing #ArtificialIntelligence #SoftwareEngineering #AILiteracy #LLMs #AgenticAI #SoftwareArchitecture #TDD #EngineeringLeadership #SystemsThinking #Leanpub

NEW! The Leanpub Podcast 🎙 Feat. Russ Miles, Author of The Sovereign Engineer: AI Literacy for Software Professionals

https://youtu.be/yrDKjztF7mM

#books #leanpublishing #selfpublishing #ArtificialIntelligence #SoftwareEngineering #AILiteracy #LLMs #AgenticAI #SoftwareArchitecture #TDD #EngineeringLeadership #SystemsThinking #Leanpub

NEW! Leanpub Book LAUNCH 🚀 Testing Rails from Scratch: A practical, (mostly) out-of-the-box approach to test-driven development in Ruby on Rails by Aaron Sumner

https://youtu.be/Zo7M4Cp-ndw

#books #leanpublishing #selfpublishing #RubyOnRails #TDD #Minitest #RailsTesting #TestDrivenDevelopment

And an hour after posting, I stumble on this transcript by @kentbeck sayimg something similar : people using #TDD as a moral cudgel contributed to it going out of fashion (I dont think it ever was, it has remained a well kept secret until recently) https://www.linkedin.com/posts/why-did-tdd-go-out-of-fashion-kent-beck-ugcPost-7480247871678816256-qlD6/

From the Leanpub Blog: Leanpub Book LAUNCH 🚀 Testing Rails from Scratch: A practical, (mostly) out-of-the-box approach to test-driven development in Ruby on Rails by Aaron Sumner

https://leanpub.com/blog/leanpub-book-launch-testing-rails-from-scratch-a-practical-mostly-out-of-the-box-approach-to-test-driven-development-in-ruby-on-rails-by-aaron-sumner/

#books #leanpublishing #selfpublishing #RubyOnRails #TDD #Minitest #RailsTesting #TestDrivenDevelopment

NEW! Leanpub Book LAUNCH 🚀 Testing Rails from Scratch: A practical, (mostly) out-of-the-box approach to test-driven development in Ruby on Rails by Aaron Sumner

https://youtu.be/Zo7M4Cp-ndw

#books #leanpublishing #selfpublishing #RubyOnRails #TDD #Minitest #RailsTesting #TestDrivenDevelopment

I've just released AceUnit v3.1.0.
AceUnit is a unit test framework for C.
Enjoy!
https://github.com/christianhujer/aceunit
#TDD

Indirect inputs and outputs are essential to understanding the different kinds of test doubles. This concept helps to determine when to use a dummy or stub, and when to use a spy or mock.

You can read more in the following article:
https://principal-it.eu/2020/04/indirect-inputs-and-outputs

#tdd #testdrivendevelopment #unittests #unittesting #softwaredesign

I'm proud to announce that my very first learning hour has been published on the Samman Coaching website. The topic of this new learning hour is the 𝐅𝐢𝐱𝐭𝐮𝐫𝐞 𝐎𝐛𝐣𝐞𝐜𝐭 pattern. A big thank you to @emilybache for her feedback and also for accepting my contribution.

https://sammancoaching.org/learning_hours/test_design/fixture_object.html

#technicalcoaching #softwaredesign #tdd #testdrivendevelopment

I am working on a project that uses Stripe and I need to check that required text elements are contained in the invoice PDFs, however Stripe's invoice fonts map punctuation (-, (, :) to NUL in the PDF text layer, so text extracted from the PDF file using e.g. pdf.js has 2026-06-01 printed as 2026\x0006\x0001 which makes writing good assertions hard. I switched to using https://aws.amazon.com/textract/, which OCRs the document and preserves punctuation, spaces and line breaks. Super convenient!
#tdd #aws

What if a defect in your system is actually a missing test? The Saff Squeeze technique helps you find both the defect and the missing test. A practical approach to debugging that leaves your codebase stronger.

Read more about it in my latest article:
https://principal-it.eu/2026/06/the-saff-squeeze/

#testing #qa #softwarequality #tdd

#PairProgramming (if you'd like to) #TDD #JUnit5 #Kotlin #Java

- Also set status when not complete or green (tx Ron)
- Setup-free .gitignore (tx Llewellyn)
- Refactorings (tx Llewellyn, Petar)
- TrunkVer (tx Raimo & Chris)

#JUnit5 #TDD