~lobsters | Bookmarks (14)

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Unit tests considered harmful? No.

substack.com

I stumbled across this post today, which represents (I think) a widely held belief that unit...
I stumbled across this post today, which represents (I think) a widely held belief that unit tests are bad.The argument here seems to be:Unit test coverage doesn't guarantee that features actually work, only that regressions can be caughtTests make code difficult to changeTherefore:These are valid (separate) argumen...

testing
1
Why Do Python Lists Multiply Oddly? Exploring the CPython Source Code

substack.com

I was scrolling down on X/Twitter when I noticed the following Python related post with 2.5k...
I was scrolling down on X/Twitter when I noticed the following Python related post with 2.5k likes on it.At first glance it does appear to be a surprising output and I agree with the sentiment that it is counter intuitive. I am not going to debate whether this is the right behavior or not. Instead, I want to take th...

python
3
Fuzzing Ladybird with tools from Google Project Zero

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browsers
2
A Deep Dive into the Underlying Architecture of Groq's LPU

substack.com

We’ve been talking about systems performance a lot lately. Few days back Groq made news for...
We’ve been talking about systems performance a lot lately. Few days back Groq made news for breaking LLM inference benchmarks with their language processing unit hardware (LPU). The success of LPU is due to the innovative design of its hardware architecture, combined with a powerful compiler. As we have been focusin...

hardware
1
Byte Interviews the Apple Lisa Dev Team (1983)

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historical mac
2
Software engineering practices you should probably be following in 2024

substack.com

Every couple of years in software development, the meta changes. Libraries and frameworks are rotated in...
Every couple of years in software development, the meta changes. Libraries and frameworks are rotated in and out of popularity, languages evolve and best practices change. These are some of my personal beliefs on what the current meta is, and what parts are worth adopting.When it comes to following best practices, t...

practices
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Why are non-DRY specs more maintainable?

substack.com

Non-DRY specs are more maintainable because they are an excellent example of choosing duplication over the...
Non-DRY specs are more maintainable because they are an excellent example of choosing duplication over the wrong abstraction, of writing code that posesses locality instead of compression, code that is simple instead of complex.Got it?I was walking around the neighborhood today and heard, to my pleasant surprise, a ...

ruby testing
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You can't handle Errors

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programming
2
Running GNU on DOS with DJGPP

substack.com

The recent deep dive into the IDEs of the DOS times 30 years ago made me...
The recent deep dive into the IDEs of the DOS times 30 years ago made me reminisce of DJGPP, a distribution of the GNU development tools for DOS.Cover image consisting on a tiny portion of the sources of DJGPP's dosexec.c source file, with a big MS-DOS logo in the center surrounded by the logos of GNU, GCC, Bash, an...

compilers unix
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Beyond the 1 MB barrier in DOS

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hardware osdev
2
The end of “Useless Ruby sugar”: On intuitions and evolutions

substack.com

ruby
2
Why Python is terrible...

substack.com

(Like this article? Read more Wednesday Wisdom!)Last week I came across a well-meaning LinkedIn post that...
(Like this article? Read more Wednesday Wisdom!)Last week I came across a well-meaning LinkedIn post that sought to advise junior developers on which language to pick up in order to have a good chance at a job. The number one language on the list was Python. This is of course a mistake.Or is it?I would have to agree...

python rant
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From 0 to 1 MB in DOS

substack.com

Since the last article on the text-based IDEs of old, I’ve been meaning to write about...
Since the last article on the text-based IDEs of old, I’ve been meaning to write about the GCC port to DOS, namely DJGPP. As I worked on the draft for that topic, I realized that there is a ton of ground to cover to set the stage so I took most of the content on memory management out and wrote this separate post.Thi...

hardware osdev
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Canon TDD

substack.com

Write a list of the test scenarios you want to coverTurn exactly one item on the...
Write a list of the test scenarios you want to coverTurn exactly one item on the list into an actual, concrete, runnable testChange the code to make the test (& all previous tests) pass (adding items to the list as you discover them)Optionally refactor to improve the implementation designUntil the list is empty, go ...

practices testing
1

~lobsters | Bookmarks (14)

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Unit tests considered harmful? No.

Why Do Python Lists Multiply Oddly? Exploring the CPython Source Code

Fuzzing Ladybird with tools from Google Project Zero

A Deep Dive into the Underlying Architecture of Groq's LPU

Byte Interviews the Apple Lisa Dev Team (1983)

Software engineering practices you should probably be following in 2024

Why are non-DRY specs more maintainable?

You can't handle Errors

Running GNU on DOS with DJGPP

Beyond the 1 MB barrier in DOS

The end of “Useless Ruby sugar”: On intuitions and evolutions

Why Python is terrible...

From 0 to 1 MB in DOS

Canon TDD