Test-driven development is a good candidate to provide AI coding agents with a tight, reliable feedback loop. A small but carefully designed experiment suggests it might not — and in some cases the TDD-driven code came out worse than code written without it. I’m reacting to “TDD inside the agent loop – theater or actual
After going through our courses on clean code, refactoring, TDD, or software design, a common question is “how do I convince my colleagues to follow these practices?”. The answer is more subtle than you might expect, and it involves an interesting trip to the patterns community.
Doing the simplest thing that could possibly work often involves incremental thinking: the engineering practice of splitting a large problems into smaller problems so that their resolution grows into the solution that you are looking for. Let’s see a definition and a few examples.
LLMs have many ethical implications, and we decided to tackle them head on in this video, in the context of using AI assistants to generate code and other software development artifacts. The brief:The top issues for using LLMs for software development are: copying the whole internet to build the models, possible copyright infringement in generated
In this video, Alex asks an interesting question: what if we invented programming now, after we have LLMs and AI agents? Would we program in the same way? Would we still need programming languages? Would testing become more important than programming? And where is software development headed next?
A common confusion among beginners in Test Driven Development (TDD) is on what is worth test driving. Oftentimes, especially when using stubs and mocks, the tests are not pushing towards the interesting behaviors but rather checking the functioning of the language, framework, libraries, OS, or even the testing framework. Starting from a user comment, Alex
tl; dr: it’s not hard to learn TDD, it’s hard to unlearn the linear way of software development we’ve been used to In a recent discussion on Mastodon, Emily Bache asked the question: “In what ways is TDD easier than test after? And why is it hard to learn?”. This is the answer to the
Debug Asserts are a common way for introducing checks in code. But are they really useful? tl; dr: debug asserts are seemingly free, but they introduce clutter in the code. Their main problem is unclear intent, and we can replace them with other, clearer, practices. One of them, but not the only one we discuss
Extreme Programming (XP) practitioners often talk about how they haven’t used a debugger in years. Yet this assertion often leads to potential misunderstandings. Should you really avoid debuggers? Or is there something more to unpack? tl; dr: good tests reduce the need of debugging to almost zero. A debugging session is an automated test that
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