Search

Said and published

• Yihui Xie GitHub 18 Sept testit — A simple package for testing R packages
• Kun Chen Korrent 7 Sept Unit tests have become just more source code to maintain — only end-to-end tests can be trusted to guard real behavior. unit tests are just source code at this point e2e test is the only real kind of test we can trust to guard actual behavior
• Christian Oliff GitHub 2 Sept awesome-website-testing-tools — Resource of web-based testing and validation tools
• Pieter Levels x.com 20 Sept Belly fat is killing your testosterone
• Armin Ronacher GitHub 18 Sept insta — A snapshot testing library for rust
• Guillermo Rauch Korrent 8 Sept Review, testing and QA is the new bottleneck in software engineering. the new bottleneck in software engineering: review, testing and QA
• Casey Muratori Korrent 26 Aug Development should never be driven by tests: how much to test is an engineering decision to be costed project by project, not a methodology to adopt by default. I would say the part that I don't like about test-driven development is the testdriven part. I don't think development should ever be driven by tests.
• Christian Oliff GitHub 1 Sept inputmodes.com — Testing inputmode
• Carlos Alexandro Becker GitHub 19 Sept lablaudo-bot — vibe coded telegram bot to check blood test results
• Christian Oliff Uses 3 Sept BrowserStack — BrowserStack BrowserStack Cross-device testing
• Byrne Hobart x.com 10 Sept One of the kids got a surprisingly bad grade on a spelling pre-test, so I gave Codex a picture of the test and told it to build a practice app. Much improved!
• Dan Luu x.com 7 Sept How well do agents use test/verification techniques?
• Dan Luu Bluesky 7 Sept How well do agents use test/verification techniques?
• Dan Luu Mastodon 7 Sept How well do agents use test/verification techniques?
• Marco Arment Mastodon 28 Aug Big TestFlight update for Unforgetful:
• Paul Graham Korrent 8 Sept AI may finally allow testing whether or where people make more money by being good. AI may finally allow us to test whether (or more precisely where) you make more money by being good.
• James Brooks x.com 3 Sept Completed my first FTP test yesterday with @GoZwift 💀
• François Chollet Korrent 5 Sept Test-time scaling has gained a third axis of latent space reasoning iterations in looped transformers. Seems like test time scaling has gained a 3rd axis: latent space reasoning iterations in looped transformers.
• Ray Dalio Newsletter 31 Aug A Clear and Classic Big Test of U.S. Power
• J. Kenji López-Alt YouTube 31 Aug Konbini Taste Test! Ready... set... EAT! 🍱 🍙 🍡
• Fabien Sanglard GitHub 25 Aug csi — Tool to test terminal csi commands
• Dan Cederholm Mastodon 27 Aug Just testing my font in a few random words &
• Dan Cederholm Bluesky 27 Aug Just testing my font in a few random words &
• Robin Hanson Newsletter 27 Aug Testimony Data Project
• Emily Oster Newsletter 26 Jul Everyone Is Talking About Male Testosterone
• Marco Arment Mastodon 15 Aug Want to help me shape Unforgetful's direction? Join the TestFlight here: https://testflight.apple.com/join/Ex8upS2T Limited to the first 200 people. Actual users only, please. Thanks!
• Brad Fitzpatrick GitHub 1 Aug go-test-bug-repro
• Casey Newton Bluesky 17 Aug Uh oh, sounds like another agent escaped its testing environment!
• Daniel Stenberg Korrent 14 Aug Performance test results are highly dependent on the specific machine, library versions, and other components used, making them hard to compare over time. Performance tests are highly specific and dependent on the exact machine it runs on, the exact third party libraries and their versions that are used, the other components involved in the tests, such as the servers, and…
• Kent C. Dodds YouTube 4 Aug I Delete Tests Every Night (On Purpose)
• John Siracusa Mastodon 20 Jul To whoever added several more steps to the task of releasing a TestFlight build to a group of testers in App Store Connect: 👎 👎 👎
• Rasmus Andersson x.com 10 Aug …the Playbit runtime for Linux and it's surprisingly difficult to test various desktop configurations. We need a real GPU with a display connected, for testing dawn/webgpu, vsync, display sleep, etc. We use…
• Steve Huff YouTube 29 Jul Twelve HIFi Amps Tested and the Winner Is....
• Federico Viticci Mastodon 22 Jul Apple seriously added search to the TestFlight app, *and* removed sorting options, with the default now being alphabetical sorting only…? WTF? This makes TestFlight unusable for me.
• Jason Furman x.com 8 Jul Terrific testimony, worth reading.
• Kent Beck Korrent 1 Jul 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. So beforehand because of this social divide between programmers and testers. There was a lot of incentive for the testers to have their own language. This is my tool. I know how to run it. I'm going to run it.
• Adam Mosseri Korrent 9 Jul At three billion users you cannot launch without testing and cannot test without it becoming news, so the communications plan comes before the launch decision. you can't you can't you can't launch something to three billion people and not test it first, but you can't test something at our scale and not expect people to cover it
• Manassarn "Noom" Manoonchai GitHub 20 Jul typeland — yet another typing test website (wip)
• Eric Topol Newsletter 3 Jul Aaron Newman: A Breakthrough Blood Test for Cancer
• Eric Topol Korrent 12 Jul Nobody should buy a direct-to-consumer biological age test today: they are sold expensively without standardisation or demonstrated reliability. I would suggest not buying any of these tests.
• Kyle Kingsbury GitHub 22 Jul hegel-clj — Clojure bindings for Hegel, a property-based testing system.
• Andrew Plotkin GitHub 27 Apr Inform6-Testing — Regression testing for the Inform 6 compiler
• Kaspars Dambis GitHub 22 May fair-testing
• Paul Bloom Newsletter 10 Jun The God Test
• Jeff Geerling YouTube 5 Jun I tested EVERY single IP KVM
• Dan Luu Bluesky 4 Jul Agentic test processes, LLM benchmarks, and other notes on agentic coding from Galapagos Island:
• Noam Brown Korrent 26 Jun The safety frameworks the labs publish do not account for how much test-time compute a dangerous-capability evaluation was given. the preparedness frameworks and responsible scaling policies, they don't really account for the amount of test time compute.
• Randall Wilk Loved 15 Jun Helo — Beyond Code For email testing, I love using Helo.
• Kent C. Dodds Liked 10 Mar Testing Library Testing Library - A great testing library for anything that interacts with the DOM.
• Yihui Xie Korrent 15 May Unit testing's only job should be to flag when something unexpected happens. I still believe that unit testing should be nothing more than "tell me if something unexpected happened."
• Julia Evans Bluesky 2 May testing Vue components in the browser
• Paul Bloom Newsletter 27 Apr Intelligence Testy
• Sunil Pai GitHub 11 Apr test-do-rpc-fetch-ordering
• Neal Agarwal x.com 19 May new Horse Race Tests premiering in cursor camp everyday this week! @snakesandrews
• Hillel Wayne Newsletter 20 May Assumptions weaken properties
• Bryan Caplan Korrent 15 Apr 2025 Standardised testing is a good idea badly executed: the tests in common use are the problem, not testing itself. Standardized testing is glorious, but many standardized tests royally suck.
• Kent C. Dodds Korrent 20 Oct 2018 Good things happen when you do not test implementation details: tests written with the React and Vue testing libraries look almost identical. Did you know, the tests you write with react-testing-library look almost identical to the tests you write with vue-testing-library. Magic things happen when you don't test implementation details. :)
• Xe Iaso GitHub 7 May random-python-app — Ignore, this is a test of a skill
• James Brooks GitHub 5 Mar cf-allow-test
• Rasmus Andersson GitHub 26 Apr 2025 go-testutil — Go test helper
• Russ Cox Blog 5 Dec 2023 Go Testing By Example
• Pouria GitHub 5 Jan 2023 express-unit-test — Simple Express unit test example.
• Maxence Poutord GitHub 3 Jan 2023 vue-testing-library-sample — 🚀 A Vue.js project to test Jest and Testing-library. Data come from Star Wars API.
• Marc Littlemore GitHub 14 Mar 2023 js-unit-testing-examples — 🤓 JavaScript Unit Testing Examples
• Martin Fowler Korrent 17 Apr 2012 Test coverage is a tool for finding untested code and says nothing about how good the tests are. Test coverage is of little use as a numeric statement of how good your tests are.
• Kent C. Dodds Liked 10 Mar Vitest Vitest - A great testing framework.
• Marc Littlemore Site 24 Jul 2021 Improving Your Workflow with JavaScript Testing: Best Practices
• Sunil Pai GitHub 21 Dec 2025 test-zod
• Hillel Wayne GitHub 2 Aug 2022 hacker-test-history — Let's explain all the hacker test questions!
• Julia Evans GitHub 9 Dec 2025 test-deleteme
• Daniel Stenberg GitHub 5 Jul 2024 HTTP3-test — Documentation for early HTTP/3 testing (with curl and more)
• Simon Willison Korrent 19 Mar Writing code with a coding agent and no tests at all is indefensible, because the old objection to testing — that it is extra work you then have to maintain — no longer applies. I think I see people who are writing code with coding agents and they're not writing any tests at all. That's a terrible idea.
• Marc Littlemore GitHub 2 May 2024 telegram-test-bot — A test Telegram bot using serverless functions with Vercel for deployment
• Guillermo Rauch Korrent 10 Dec 2016 Write tests. Not too many. Mostly integration. Write tests. Not too many. Mostly integration.
• Philip Koopman Blog 8 Jun 2024 SAE J3018 for operational safety
• Mario Zechner Korrent 25 Mar In an agent-written codebase the agent-written tests are equally untrustworthy; manually using the product is the only reliable measure of whether it works. Worse, you realize that the gazillions of unit, snapshot, and e2e tests you had your clankers write are equally untrustworthy. The only thing that's still a reliable measure of "does this work" is manually testing the…
• Kent C. Dodds Uses 10 Mar Playwright — Microsoft Playwright - I use this for E2E testing.
• Amjad Masad GitHub 21 Jul 2022 test
• Moxie Marlinspike GitHub 14 Jul 2014 testing
• Austin Vernon Korrent 12 Feb Most regulatory delay is dead calendar time that could be cut without changing a single safety test. There is a massive scope to reduce calendar time without even altering testing protocols.
• Hillel Wayne Korrent 5 Oct 2017 Unit tests alone give little confidence in a program, because the mistakes people actually make are not the conveniently unit-testable ones. But unit tests don't give you much confidence in your code.
• Dan Luu Korrent 12 Dec 2015 Conventional testing is not sufficient: crude purpose-built checking tools of a few thousand lines find bugs that testing does not. These studies also hammer home the point that conventional testing isn't sufficient.
• Hillel Wayne GitHub 22 Jun 2022 sphinx-github-action-test — A quick repo for testing compiling a sphinx doc and syncing it with S3
• Eugene Yan GitHub 24 Jun 2024 workspace-testing
• Russ Cox Korrent 25 Apr 2025 Buggy code usually causes outright test failures rather than being silently exercised inside tests that still pass. a passing test can still execute buggy code if the bug is data-dependent, or if the test is not sensitive to the specific mistake in the code. But a lot of the time, buggy code only triggers failures.
• Joe Previte GitHub 5 Nov 2024 dotfiles — testing dotfiles
• Kalwabed Rizki GitHub 4 Nov 2024 go-with-test
• Craig Hockenberry GitHub 4 Sept 2023 Observatory — Testing Observable
• Amjad Masad GitHub 9 Jul 2020 testing_with_zeb
• Bryan Johnson Uses 21 Jan simplelab — SimpleLab I use simplelab to test the water.
• Scott Hanselman Blog 7 Mar 2024 Updating to .NET 8, updating to IHostBuilder, and running Playwright Tests within NUnit headless or headed on any OS
• Peter Steinberger Korrent 25 Aug 2025 Tests written by a model in the same context as the change are what find the bugs; the automated tests left behind are the lesser product. Bigger changes always get tests. Automated ones usually aren’t great, but the model almost always finds issues when you ask it to write tests IN THE SAME CONTEXT. Context is precious, don’t waste it.
• Mitchell Hashimoto Blog 21 Jan Don't Trip[wire] Yourself: Testing Error Recovery in Zig
• Jason Cohen Korrent 25 Jan A/B testing cannot touch anything that actually decides a company: not strategy, not vision, not insight. AB testing doesn't work very well and it doesn't work on most things. It won't work on strategy or vision or insights like nothing actually important to the success of the company. You don't AB test whether Uber is a…
• Adam Mastroianni Korrent 16 May 2023 Grading flattens whatever is taught into what can be tested, and teaches students to ignore everything else. Evaluation forces me to flatten everything I teach into something that can be tested, and it encourages students to ignore everything that isn’t on the test.
• Dan Luu Korrent 12 Dec 2015 Almost every software project has cheap testing wins left on the table: basic random testing, static analysis and fault injection pay for themselves the first time they are run. Almost every software project I've seen has a lot of low hanging testing fruit.
• Brendan Gregg Korrent 3 Aug 2025 A performance test without an explanation of its limiting factor should be treated as unanalyzed and possibly bogus. Any performance test should be accompanied by an explanation of the limiting factor, since no explanation will reveal the test wasn't analyzed and the result may be bogus.
• Dan Luu Korrent 18 Nov 2014 How much to test is an economic calculation a team should actually run, not a matter of principle. The point isn't that you should definitely write more tests, it's that you should definitely do the math to see if you should write more tests.
• Tom Preston-Werner GitHub 18 Jun 2024 gollum-demo — Gollum test repo
• Gergely Orosz Loved 16 Dec 2024 Working Effectively with Legacy Code — Michael Feathers Legacy code has no test and is not written to be testable. Touching it this sphaghetti code somewhere breaks the system. And to refactor safely, we'd need to have tests first... but where to start? This book gives…
• Martin Fowler Korrent 17 Apr 2012 Total test coverage is a warning sign rather than an achievement: it smells of tests written for the number. I would be suspicious of anything like 100% - it would smell of someone writing tests to make the coverage numbers happy, but not thinking about what they are doing.
• Kent C. Dodds Korrent 5 Mar 2018 Write tests. Not too many. Mostly integration. "Write tests. Not too many. Mostly integration." - @rauchg Here's my talk from @assertjs two weeks ago dissecting that statement.
• Maxence Poutord GitHub 3 Jan 2023 github-actions-test — playing with GiHub Actions
• Martin Fowler Korrent 17 Apr 2012 Making test coverage a target destroys it, because high coverage numbers are easy to reach with worthless tests. If you make a certain level of coverage a target, people will try to attain it. The trouble is that high coverage numbers are too easy to reach with low quality testing.
• Douglas Crockford GitHub 22 Nov 2024 JSCheck — A random property testing tool for JavaScript
• Sean Coker x.com 26 Dec 2023 AB testing some Mac & Cheese recipes right now
• Maggie Appleton Site 11 Jan 2025 Undetected AI Exam Answers
• Sebastian Raschka GitHub 20 Dec 2025 math_full_minus_math500 — The MATH training dataset without MATH-500 test portion
• Maxence Poutord Site 4 Feb 2020 10 Tips for Writing Better Tests
• Sreetam Das Uses 14 Jul 2024 Hoppscotch Hoppscotch for testing APIs, after Insomnia turned to 💩
• David Crawshaw Korrent 6 Jan 2025 LLMs will push software development toward more specialized code, fewer generalized packages, and more readable tests. So I foresee a world with far more specialized code, with fewer generalized packages, and more readable tests.
• Thorsten Ball Korrent 22 Oct 2015 Code that is complex or clever can pass its tests while still being bad code. A lot of complex, "look at this clever trick", overly-abstracted, unreadable code works and makes the tests pass.
• Rob Walling Mixed on 5 Aug 2010 The New Business Road Test — John Mullins These books are more specific and rigorous than your standard Malcolm Gladwell fare; things like Getting to Plan B, The New Business Road Test, and Business Model Generation.
• Bryan Caplan Korrent 15 Apr 2025 Bad admissions tests survive on herding: no programme wants to be the one asking for a different exam, even a far better one. So a lot of the problem is mere herding: If every other top engineering program is using the GRE, it’s too weird to require a different test even if the alternative test is a far superior selection mechanism.
• Hillel Wayne Korrent 21 Jan 2019 Most distributed-systems outages would have been prevented by slightly more comprehensive ordinary testing, not by better tools. In fact, the vast majority of distributed systems outages could have been prevented by slightly-more-comprehensive testing.
• Tobias Lütke Korrent 18 Sept 2025 The one thing no science-fiction writer dared predict is that the Turing test would be passed and nobody would notice. And you know what no sci-fi author dared to predict is that the Turing tests just passes by.
• Elena Verna Korrent 19 Jan 2025 Testing shades of a colour is an early-2000s tactic that no longer drives anything. For the love of God, a blue is a blue is a blue. As long as it's accessible and as long as it's bright enough, off you go. You do not need to test the shades of blue, but test it against green or so on.
• Kent C. Dodds Korrent 23 Mar 2018 The more your tests resemble the way your software is used, the more confidence they can give you. The more your tests resemble the way your software is used, the more confidence they can give you.
• Benedict Evans Korrent 2 Sept 2025 The leading chatbots are undifferentiated: in a blind test most people could not tell one model's output from another's. Like it seems to me right now you could do like a double blind test of the same prompt given to Grock Claude Gemini um Mistral Deep Seek. Do a double blind test. I bet most people wouldn't be able to tell which is which.
• Elena Verna Korrent 19 Jan 2025 If a test cannot collect its sample size within a month, it should not be run at all. My rule of thumb, if we cannot collect the sample size in a month, we shouldn't test it. Period.