Thanks for investigating and fixing the failures, Koji!

On the UA defined rules, if other vendors are happy with the examples used,
then that's what matters in practice. If you do get pushback on specific
examples I hope there are others that can be used that are a common ground.

I think everything looks good here, but since the TAG review and Mozilla
issue were filed recently, I'd like to give those a bit more time.

On Thu, Sep 7, 2023 at 11:14 AM Koji Ishii <ko...@chromium.org> wrote:

> I've got two updates on the questions:
>
> On Thu, Sep 7, 2023 at 2:46 AM Koji Ishii <ko...@chromium.org> wrote:
>
>> Good point, thanks for asking.
>>
>> Technically speaking, we can't write any tests because the
>> language-specific content analysis is UA defined. Tests use common and easy
>> words that most engines would analyze the same way, but you're right that
>> we may need to modify tests if any engine analyzes them differently.
>>
>> Tests contain that in comments, like this
>> <https://github.com/web-platform-tests/wpt/blob/master/css/css-text/word-break/auto-phrase/word-break-auto-phrase-001.html>
>> or this
>> <https://github.com/web-platform-tests/wpt/blob/master/css/css-text/word-break/auto-phrase/word-break-auto-phrase-wbr-nobr-001.html>.
>> I'm also talking to WebKit about tests, since there are currently two known
>> engines; one in ICU and one in macOS/iOS. We'll work together to ensure
>> words in tests are common and easy enough for both engines.
>>
>
> In case this helps, the situation is the same as hyphenation tests. In the
> past, wpt tests needed updates when one implementation hyphenates
> differently from other browsers. I remember this happened at least once
> before.
>
> Four tests failing is strange, thanks for pointing them out too, they all
>> pass in Chromium bots. I'll check them and make sure they're all green
>> before shipping.
>>
>
> I've figured them out, all fixes landed, I'll watch when wpt.fyi will be
> updated. One was a recent spec change I wasn't aware of, three were
> differences between wpt bots and chromium bots (#41851
> <https://github.com/web-platform-tests/wpt/issues/41851>.)
>

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