This is an awesome improvement to the testing story, thank you very much.

LGTM1

On 6/23/25 8:18 a.m., Daniil Sakhapov wrote:
I've added a bunch of what you've requested in https://wpt.fyi/results/css/css-values/typed_arithmetic.html

I plan to add more tests for custom properties as well.

вторник, 17 июня 2025 г. в 20:51:00 UTC+2, Mike Taylor:


    On 6/16/25 8:13 AM, Chromestatus wrote:


            Contact emails

    sakha...@chromium.org


            Explainer

    None


            Specification

    https://www.w3.org/TR/css-values-4/#calc-type-checking
    <https://www.w3.org/TR/css-values-4/#calc-type-checking>


            Summary

    Typed arithmetic allows to write expressions in CSS such a
    calc(10em / 1px) or calc(20% / 0.5em * 1px) which is useful for
    e.g. typography, as it allows to convert typed value into an
    untyped one and reuse it for number accepting properties or
    futher multiply the unitless value by some other type to e.g.
    cast from pixels to degrees.



            Blink component

    Blink>CSS
    <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ECSS%22>



            TAG review

    None


            TAG review status

    Not applicable


            Risks



            Interoperability and Compatibility

    None



    /Gecko/: No signal
    (https://github.com/mozilla/standards-positions/issues/1252
    <https://github.com/mozilla/standards-positions/issues/1252>)

    /WebKit/: Shipped/Shipping

    /Web developers/: Strongly positive Verbal confirmation from
    multiple developers that they really need it

    /Other signals/:


            WebView application risks

    Does this intent deprecate or change behavior of existing APIs,
    such that it has potentially high risk for Android WebView-based
    applications?

    None



            Debuggability

    None



            Will this feature be supported on all six Blink platforms
            (Windows, Mac, Linux, ChromeOS, Android, and Android
            WebView)?

    Yes


            Is this feature fully tested by web-platform-tests
            
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?

    Yes

    https://wpt.fyi/css/css-values/getComputedStyle-calc-mixed-units-003.html
    <https://wpt.fyi/css/css-values/getComputedStyle-calc-mixed-units-003.html>

    Do you have plans to add more tests here? There's a number of
    types that aren't tested, and no coverage of infinities, NaN, or
    signed zeroes.


            Flag name on about://flags

    CSSTypedArithmetic


            Finch feature name

    None


            Non-finch justification

    None


            Rollout plan

    Will ship enabled for all users


            Requires code in //chrome?

    False


            Tracking bug

    https://issues.chromium.org/issues/40768696
    <https://issues.chromium.org/issues/40768696>


            Estimated milestones

    DevTrial on desktop         138
    DevTrial on Android         138



            Anticipated spec changes

    Open questions about a feature may be a source of future web
    compat or interop issues. Please list open issues (e.g. links to
    known github issues in the project for the feature specification)
    whose resolution may introduce web compat/interop risk (e.g.,
    changing to naming or structure of the API in a
    non-backward-compatible way).

    None


            Link to entry on the Chrome Platform Status

    https://chromestatus.com/feature/4740780497043456?gate=5654265095520256
    <https://chromestatus.com/feature/4740780497043456?gate=5654265095520256>


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    <https://chromestatus.com>.
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