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web-platform-tests/wpt

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Test suites for Web platform specs — including WHATWG, W3C, and others

39 mentions on Hacker News by 29 people: 0 stories, 39 comments · first 2013-07-02 · latest 2026-09-15

Mentions per year 39 mentions · busiest year 2021 (9)
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  1. …conformance tests https://github.com/byteface/chromonic/ cd to tests/layout.. git clone --depth=1 https://github.com/web-platform-tests/wpt.git tell it to run the tests and fix any issues with layout and append any issues with domonic into…
    comment by byteface · 2026-09-15 · in Ask HN: What are you working on? (September 2026)
  2. …how do you determine if you have handled all the outliers or not? The ~2 million Web Platform Tests https://github.com/web-platform-tests/wpt . They also handle most of the backwards compatibility. The rest is engine developers manually…
    comment by nicoburns · 2026-09-08 · in This Month in Ladybird – August 2026
  3. …and passing a spelling test. 1. https://servo.org/blog/2023/07/20/servo-web-platform-tests/ 2. https://github.com/web-platform-tests/wpt Not to mention this site is clearly vibe coded and has a vague call to action and no source code…
    comment by timhigins · 2026-08-01 · in Show HN: I worked on a new browser for 2 years, today it passed Acid 3
  4. https://github.com/web-platform-tests/wpt/commits/master/aci... shows the history of the web-platform-tests copy of WPT, which has mostly followed Hixie’s earlier updates to Acid3 by simply commenting out assertions that no longer match…
    comment by gsnedders · 2026-08-01 · in Show HN: I worked on a new browser for 2 years, today it passed Acid 3
  5. …effort all the major players contribute to. Almost two thousand people have contributed to it: https://github.com/web-platform-tests/wpt/graphs/contributor...
    comment by JimDabell · 2025-10-11 · in Firefox is the best mobile browser
  6. Having something like WPT [1] for C++ would be really nice. [1] https://github.com/web-platform-tests/wpt
    comment by monax · 2025-09-12 · in Show HN: C++ Compiler Support Page
  7. …make things better: a decent number of tests for things like Grid use check-layout-th.js (e.g., https://github.com/web-platform-tests/wpt/blob/f763dd7d7b7ed... ). One could definitely imagine a world in which these are a test type of their…
    comment by gsnedders · 2024-03-22 · in Show HN: Dropflow, a CSS layout engine for node or <canvas>
  8. …[2]: https://github.com/DioxusLabs/taffy/tree/main/scripts/gentes... [3]: https://github.com/web-platform-tests/wpt/tree/master/css/cs...
    comment by nicoburns · 2023-04-11 · in We're building a browser when it's supposed to be impossible
  9. …suites you can use for reference comparison. What about W3C's web-platform-tests suite [1]? [1]: https://github.com/web-platform-tests/wpt/tree/master/css
    comment by tannhaeuser · 2022-09-12 · in Ladybird: A new cross-platform browser project
  10. > due to a bug in the testing framework the "bug" is https://github.com/web-platform-tests/wpt/issues/31147 MacOS 11 isn't allowed(?) to be virtualized, so the Safari TP, which is tied to MacOS updates, couldn't be updated. > That's why…
    comment by magicalist · 2021-11-15 · in Sorry Safari Team
  11. …did. Getting this wrong will make your client hang, consume garbage, or allow response stuffing. https://github.com/web-platform-tests/wpt/pull/10548/files This problem does not exist in HTTP/2.
    comment by pornel · 2021-08-01 · in Show HN: Micro HTTP server in 22 lines of C
  12. …a test tests? You really propose to reverse engineer behaviour from code? Example: here's a test: https://github.com/web-platform-tests/wpt/blob/master/html/s... What exactly does it test? Why? Is this a correct test for this behaviour?…
    comment by dmitriid · 2021-07-31 · in Firefox lost 50M users since 2019
  13. …every API, but existing APIs are accompanied by very thorough test suites (Web Platform Tests): https://github.com/web-platform-tests/wpt Live results from nightly builds: https://wpt.fyi/results/?label=experimental&label=master&ali...…
    comment by jakub_g · 2021-06-17 · in Boring Problems Need Attention Too
  14. …to get a PR to add new tests [2] [1] https://web-platform-tests.org/writing-tests/reftests.html [2] https://github.com/web-platform-tests/wpt
    comment by jgraham · 2021-06-15 · in IndexedDB is completely broken in latest Safari
  15. …is lacking in a way I'm unaware of. But for others who don't know: https://web-platform-tests.org/ https://github.com/web-platform-tests/wpt/tree/master/css/CS...
    comment by mh- · 2021-06-15 · in IndexedDB is completely broken in latest Safari
  16. …far more extensive than the Acid tests were. Browser conformance is tracked continuously[2]. [1] https://github.com/web-platform-tests/wpt [2] https://wpt.fyi/
    comment by rwxsh · 2021-05-27 · in Different browsers see different colors
  17. …Also fwiw, if you're implementing a browser use the web platform tests instead of writing your own: https://github.com/web-platform-tests/wpt
    comment by esprehn · 2021-04-20 · in The Hotdog web browser and browser engine
  18. There's the web APIs which are tested against https://github.com/web-platform-tests/wpt (albeit without full coverage), and there is ffi/plugins - for deno specific things like readFile. I don't know the history of Node... but why would…
    comment by hayd · 2021-04-13 · in Deno 1.9
  19. …That's the reason why tests 23 and 25 fail (both because of the "wrong" exception being thrown); https://github.com/web-platform-tests/wpt/commit/3cbdbaa7ca9... is the Acid3 change for that. The other test that fails, test 35, is down to…
    comment by gsnedders · 2020-06-13 · in Flow browser passes the Acid tests
  20. And the updated one is in https://github.com/web-platform-tests/wpt/tree/master/acid for those wanting to look at the history (though it only includes the ppst-fork history, not the earlier updates).
    comment by gsnedders · 2020-06-13 · in Flow browser passes the Acid tests
  21. …I was waiting for the spec to land before working again on this. First step is to fix the tests: https://github.com/web-platform-tests/wpt/pull/21773 I'll incorporate them into https://bugs.webkit.org/show_bug.cgi?id=200764 , test a bit…
    comment by ksec · 2020-02-13 · in The specification for native image lazy-loading is merged into HTML standard
  22. …reflects what browsers are actually targetting (and is what runs in everyone's CI system): see https://github.com/web-platform-tests/wpt/commits/master/aci... for the history.
    comment by gsnedders · 2020-02-02 · in Old CSS, New CSS
  23. …with window.portalHost but at least this github mentions you can minimally declare no-referrer https://github.com/web-platform-tests/wpt/blob/master/portal... Wouldn't the concern be ads ( I assume this is what this feature is intended for…
    comment by dillondoyle · 2019-05-10 · in Google launches new “portal” HTML element
  24. We use Azure Pipelines for https://github.com/web-platform-tests/wpt with some help from friends at Microsoft, and it's a great product! It's very "power user" in that it's easy to get lost amongst all the options, but nothing else I've…
    comment by foolip · 2019-01-23 · in Travis CI acquired by Idera
  25. …smaller tests into a small set of bigger tests where each group of tests shares some resource. [1]: https://github.com/web-platform-tests/wpt [2]: https://github.com/bbqsrc/cucumber-rust
    comment by est31 · 2019-01-01 · in Rust 2019: Tame Complexity through Community Involvement Tools
  26. …from @apple.com in mozilla-central are a few commits from the auto-syncing of web-platform-tests ( https://github.com/w3c/web-platform-tests ), and a few patches from code shared with WebKit where patches have been copied over. So, uh, no…
    comment by gsnedders · 2018-05-21 · in Apps for which macOS applies compatibillity fixes
  27. …purposes. For example, see https://searchfox.org/mozilla-central/rev/da499aac682d0bbda5... (or at https://github.com/w3c/web-platform-tests/blob/a47dd526b9033... depending on which of these stays up more permanently).
    comment by bzbarsky · 2018-05-18 · in Proxy, a new JavaScript ES6 feature
  28. …the W3C's set of web platform tests, seen here testing the Typed OM feature you are interested in: https://github.com/w3c/web-platform-tests/tree/master/css/cs... So, this actually tells you nothing about whether Firefox is interested in…
    comment by tialaramex · 2018-04-18 · in New in Chrome 66
  29. …to ship a feature sooner than other vendors, there's a specification and a shared test suite ( https://github.com/w3c/web-platform-tests ) that allow others to quickly follow. Note that a specification is better than requiring them to read…
    comment by domenicd · 2017-12-14 · in HTML 5.2 Recommendation
  30. …implementation of a [de-facto] standard requires a solid open test suite. The Web platform has one, https://github.com/w3c/web-platform-tests . Is there an equivalent suite for TCP/IP?
    comment by pacala · 2016-07-02 · in Why do we use the Linux kernel's TCP stack?
  31. …towards somewhere better when it comes to interoperability across browsers. web-platform-tests ( https://github.com/w3c/web-platform-tests ) has got us a good, high-quality test suite for the platform minus CSS, and is run by most but not…
    comment by gsnedders · 2016-01-15 · in You Can't Destroy the Village to Save It: W3C vs. DRM, Round Two
  32. …to understand in detail and implement, but people nevertheless use it with reckless abandon). [1] https://github.com/w3c/web-platform-tests [2] http://testthewebforward.org/
    comment by jgraham · 2015-08-17 · in Explaining the browser's event loop, tasks, and microtasks
  33. …even worse than IE if you look at the individual tests that fail, rather than the overall %). [1] https://github.com/w3c/web-platform-tests/blob/master/Indexe...
    comment by streptomycin · 2015-05-03 · in Microsoft Edge – The Browser for Doing
  34. …[2] http://codefirefox.com/ [3] http://www.joshmatthews.net/bugsahoy/ [4] https://github.com/w3c/web-platform-tests [5] http://testthewebforward.org
    comment by jgraham · 2015-04-01 · in Ask HN: What are some open source projects that a beginner can work on?
  35. The W3C does publish specification tests: https://github.com/w3c/web-platform-tests http://testthewebforward.org/blog/2013/02/20/testing-the-ope...
    comment by cpeterso · 2015-03-31 · in More Details About Project Spartan
  36. …which will hopefully help with some of the basics, but it will be challenging to get full coverage. https://github.com/w3c/web-platform-tests/tree/master/webaud...
    comment by chrislo · 2014-06-18 · in Show HN: Wavepot – Digital audio workstation of the web
  37. > Maybe the W3C could write acceptance tests to go alongside the specs. Like these? :) https://github.com/w3c/web-platform-tests
    comment by pcwalton · 2014-04-28 · in Web SQL Database: In Memoriam
  38. …working group has started to work on it recently, and you can see the beginning of the work here: https://github.com/w3c/web-platform-tests/tree/master/webaud... . We're planning to integrate the regression tests from both Mozilla and…
    comment by ehsanakhgari · 2013-07-10 · in Web Audio API comes to Firefox
  39. …https://bugs.opera.com/wizard/ [1] http://fantasai.inkedblade.net/style/talks/filing-good-bugs/ [2] https://github.com/w3c/web-platform-tests [3] https://sites.google.com/site/forthenewbies/home/writing [4]…
    comment by jgraham · 2013-07-02 · in Firefox Takes the Performance Crown From Chrome