Hi, I'm Hillel. This is the newsletter version of my website. I post all website updates here. I also post weekly content just for the newsletter, on topics like Formal Methods Software History and Culture Fringetech and exotic tooling The philosophy and theory of software engineering You can see the archive of all public essays here.| buttondown.com
In most testing frameworks, you’re expected to write a lot of low-level tests and few high-level tests. The reasoning is that end-to-end tests are slow and expensive and only cover a tiny amount of the program’s state space. It’s better to focus on testing all the parts in isolation versus testing that they all work together. In practice, global correctness does not follow from local correctness. It’s possible for every part to be individually rock-solid but the system to be broken as...| Hillel Wayne
