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← Unit testing frameworks arrived so late because testing was a status…
17 connected korrents · 12 moments on record from 5 Oct 2017 to 1 Sept 2026.
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JavaScript Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Read this korrent: Unit testing frameworks arrived so late because testing was a status divide, and testers had every incentive to keep a separate tool and language of their own. Unit testing frameworks arrived so late because testing was a status divide, and testers had every incentive to keep a separate tool and language of their own. Last stated 2 months ago
1 Jul 2026
KB
Kent Beck — holds since 2026-07-01 — tap for who they are
Same subject: TDD fell out of fashion partly because its advocates turned it into a moral test of professionalism, when people write very good software with a wide variety of workflows. — tap to centre the map on it TDD fell out of fashion partly because its advocates turned it into a moral test of professionalism, when people write very good software with a wide variety of workflows. Last stated 2 months ago
1 Jul 2026
KB
Kent Beck — holds since 2026-07-01 — tap for who they are
Same subject: Facebook could ship safely without much unit testing because it had many independent layers of feedback, each one catching what the earlier layers missed. — tap to centre the map on it Facebook could ship safely without much unit testing because it had many independent layers of feedback, each one catching what the earlier layers missed. Last stated 2 months ago
1 Jul 2026
KB
Kent Beck — holds since 2026-07-01 — tap for who they are
Same subject: Unit tests alone give little confidence in a program, because the mistakes people actually make are not the conveniently unit-testable ones. — tap to centre the map on it Unit tests alone give little confidence in a program, because the mistakes people actually make are not the conveniently unit-testable ones. Last stated 9 years ago
5 Oct 2017
HW
Hillel Wayne — holds since 2017-10-05 — tap for who they are
Same subject: A sense of achievement in software survives writing almost none of the code yourself. — tap to centre the map on it A sense of achievement in software survives writing almost none of the code yourself. Last stated 2 weeks ago
26 Aug 2026
DH
David Heinemeier Hansson — holds since 2026-08-26 — tap for who they are
Same subject: Performance work used to mean half a day reading traces before writing a single fix, and language models have collapsed that step to minutes. — tap to centre the map on it Performance work used to mean half a day reading traces before writing a single fix, and language models have collapsed that step to minutes. Last stated 3 weeks ago
19 Aug 2026
AO
Addy Osmani — holds since 2026-08-19 — tap for who they are
Same subject: Developer tools are consumer products, and the reason there are gaps to win is that programmers are horrible at consumer products and do not know it. — tap to centre the map on it Developer tools are consumer products, and the reason there are gaps to win is that programmers are horrible at consumer products and do not know it. Last stated 3 months ago
27 May 2026
DR
Dax Raad — holds since 2026-05-27 — tap for who they are
Same subject: Letting non-programmers build their own unmaintainable software is still a large step forward, because the alternative was a thousand-page requirements document and an eight-year wait. — tap to centre the map on it Letting non-programmers build their own unmaintainable software is still a large step forward, because the alternative was a thousand-page requirements document and an eight-year wait. Last stated 2 months ago
1 Jul 2026
KB
Kent Beck — holds since 2026-07-01 — tap for who they are
Same subject: You cannot be best of breed in an ecosystem by telling its developers to write in a different programming language. — tap to centre the map on it You cannot be best of breed in an ecosystem by telling its developers to write in a different programming language. Last stated 4 months ago
13 May 2026
AH
Anders Hejlsberg — holds since 2026-05-13 — tap for who they are
Same subject: A language-agnostic conformance suite is the most powerful thing you can hand a coding agent, because the whole instruction becomes: write code until these tests pass. — tap to centre the map on it A language-agnostic conformance suite is the most powerful thing you can hand a coding agent, because the whole instruction becomes: write code until these tests pass. Last stated 6 months ago
19 Mar 2026
SW
Simon Willison — holds since 2026-03-19 — tap for who they are
Same subject: A passing test suite is not evidence that the software works, so an agent must also be made to start the thing and exercise it the way a person would. — tap to centre the map on it A passing test suite is not evidence that the software works, so an agent must also be made to start the thing and exercise it the way a person would. Last stated 6 months ago
19 Mar 2026
SW
Simon Willison — holds since 2026-03-19 — tap for who they are
Same subject: Adding a config option so nobody breaks compounds into permutations no test suite can cover, because it is infinitely harder to evolve software that has users. — tap to centre the map on it Adding a config option so nobody breaks compounds into permutations no test suite can cover, because it is infinitely harder to evolve software that has users. Last stated 4 weeks ago
10 Aug 2026
PS
Peter Steinberger — holds since 2026-08-10 — tap for who they are
Same subject: A person at maximum vibe-coding speed has about three productive hours a day, and a company that will not let them stop there is going to break. — tap to centre the map on it A person at maximum vibe-coding speed has about three productive hours a day, and a company that will not let them stop there is going to break. Last stated 6 months ago
11 Mar 2026
SY
Steve Yegge — holds since 2026-03-11 — tap for who they are
Same subject: A vibe-coded codebase grows heresies: wrong ideas that take root among the agents, keep coming back, and are very hard to weed out. — tap to centre the map on it A vibe-coded codebase grows heresies: wrong ideas that take root among the agents, keep coming back, and are very hard to weed out. Last stated 6 months ago
11 Mar 2026
SY
Steve Yegge — holds since 2026-03-11 — tap for who they are
Same subject: AI-assisted ('vibe') coding has made it so easy to build competing SaaS apps that a plain, unremarkable SaaS product can no longer easily attract signups. — tap to centre the map on it AI-assisted ('vibe') coding has made it so easy to build competing SaaS apps that a plain, unremarkable SaaS product can no longer easily attract signups. Last stated a week ago
1 Sept 2026
PL
Pieter Levels — holds since 2026-09-01 — tap for who they are
Same subject: Agents will increase the number of users of SaaS rather than get rid of it. — tap to centre the map on it Agents will increase the number of users of SaaS rather than get rid of it. Last stated 4 months ago
24 May 2026
DS
Dan Shipper — holds since 2026-05-24 — tap for who they are
Same subject: AI companies are disrupting entire industries, causing a partial collapse of the traditional SaaS business model. — tap to centre the map on it AI companies are disrupting entire industries, causing a partial collapse of the traditional SaaS business model. Last stated a week ago
1 Sept 2026
PL
Pieter Levels — holds since 2026-09-01 — tap for who they are
Same subject: Every app is now a very slow API whether it wants to be or not, and personal agents will make a whole category of apps disappear. — tap to centre the map on it Every app is now a very slow API whether it wants to be or not, and personal agents will make a whole category of apps disappear. Last stated 7 months ago
12 Feb 2026
PS
Peter Steinberger — holds since 2026-02-12 — tap for who they are
At the centre
Unit testing frameworks arrived so late because testing was a status divide, and testers had every incentive to keep a separate tool and language of their own.
Holds KB Kent BeckRead this korrent →
TDD fell out of fashion partly because its advocates turned it into a moral test of professionalism, when people write very good software with a wide variety of workflows.
Holds KB Kent Beck
Facebook could ship safely without much unit testing because it had many independent layers of feedback, each one catching what the earlier layers missed.
Holds KB Kent Beck
Unit tests alone give little confidence in a program, because the mistakes people actually make are not the conveniently unit-testable ones.
Holds HW Hillel Wayne
A sense of achievement in software survives writing almost none of the code yourself.
Holds
Performance work used to mean half a day reading traces before writing a single fix, and language models have collapsed that step to minutes.
Holds AO Addy Osmani
Developer tools are consumer products, and the reason there are gaps to win is that programmers are horrible at consumer products and do not know it.
Holds
Letting non-programmers build their own unmaintainable software is still a large step forward, because the alternative was a thousand-page requirements document and an eight-year wait.
Holds KB Kent Beck
You cannot be best of breed in an ecosystem by telling its developers to write in a different programming language.
Holds AH Anders Hejlsberg
A language-agnostic conformance suite is the most powerful thing you can hand a coding agent, because the whole instruction becomes: write code until these tests pass.
Holds
A passing test suite is not evidence that the software works, so an agent must also be made to start the thing and exercise it the way a person would.
Holds
Adding a config option so nobody breaks compounds into permutations no test suite can cover, because it is infinitely harder to evolve software that has users.
Holds
A person at maximum vibe-coding speed has about three productive hours a day, and a company that will not let them stop there is going to break.
Holds SY Steve Yegge
A vibe-coded codebase grows heresies: wrong ideas that take root among the agents, keep coming back, and are very hard to weed out.
Holds SY Steve Yegge
AI-assisted ('vibe') coding has made it so easy to build competing SaaS apps that a plain, unremarkable SaaS product can no longer easily attract signups.
Holds
Agents will increase the number of users of SaaS rather than get rid of it.
Holds DS Dan Shipper
AI companies are disrupting entire industries, causing a partial collapse of the traditional SaaS business model.
Holds
Every app is now a very slow API whether it wants to be or not, and personal agents will make a whole category of apps disappear.
Holds