[webkit-dev] Filtering results on wpt.fyi, Safari-specific failures

Maciej Stachowiak mjs at apple.com
Mon Feb 25 10:49:51 PST 2019


I see some obvious areas for focus, where Safari fails lots of tests that the other browser don’t. 

For context, I tried looking at this view, which shows all tests that Safari and Firefox pass with Safari results regardless of result:
https://wpt.fyi/results/?label=master&label=experimental&product=chrome%5Btaskcluster%5D&product=firefox%5Btaskcluster%5D&product=safari%5Bazure%5D&aligned&q=%28chrome%3Apass%7Cchrome%3Aok%29+%28firefox%3Apass%7Cfirefox%3Aok%29 <https://wpt.fyi/results/?label=master&label=experimental&product=chrome[taskcluster]&product=firefox[taskcluster]&product=safari[azure]&aligned&q=(chrome:pass|chrome:ok)+(firefox:pass|firefox:ok)>

I noticed some puzzling results there: Safari passes all the ambient-light and bluetooth tests that Chrome and Firefox do, despite not supporting these standards at all. (For that matter I’m not sure Firefox supports these specs either.) Not sure if harness problem, or dubious tests that don’t actually test the standard.


> On Feb 25, 2019, at 5:48 AM, Philip Jägenstedt <foolip at chromium.org> wrote:
> I'd like to point out right away that diagnosing reftest failures is
> currently cumbersome because we don't store the screenshots. This is
> also a work in progress:
> https://docs.google.com/document/d/1IhZa4mrjK1msUMhtamKwKJ_HhXD-nqh_4-BcPWM6soQ/edit?usp=sharing
> Until that has launched, I would recommend ignoring reftest failures
> if the cause of failure isn't obvious.
> On Mon, Feb 25, 2019 at 2:30 PM Philip Jägenstedt <foolip at chromium.org> wrote:
>> Hi all,
>> Following the improved Safari results last year [1] and the discussion
>> that generated, I'm happy to announce that the filtering requested as
>> now available in the search box. The full syntax is documented [2] but
>> there's also a new insights view [3] with some useful searches.
>> Especially interesting for this list could be this view, of Chrome
>> Dev, Firefox Nightly and Safari Technology Preview, filtered to the
>> Safari-specific failures:
>> https://wpt.fyi/results/?label=master&label=experimental&product=chrome%5Btaskcluster%5D&product=firefox%5Btaskcluster%5D&product=safari%5Bazure%5D&aligned&q=%28chrome%3Apass%7Cchrome%3Aok%29+%28firefox%3Apass%7Cfirefox%3Aok%29+%28safari%3A%21pass%26safari%3A%21ok%29
>> Both Google and Mozilla have efforts [4][5] to reduce the number of
>> Chrome/Firefox-specific failures, as this seems like a category of
>> problems which especially valuable, where changing just one browser
>> can remove a pain point for web developers.
>> No doubt some failures are spurious, but hopefully there is value to
>> be found by looking into where the largest numbers of failures appear
>> to be. If something seems to be wrong with the search/filtering,
>> please file an issue for us! [6]
>> Credit to Mark Dittmer and Luke Bjerring who owned this project.
>> P.S. We are also working on triage metadata for wpt.fyi, to make it
>> possible to burn down a list of failures like this and not later have
>> to re-triage to find the new failures. [7]
>> [1] https://lists.webkit.org/pipermail/webkit-dev/2018-October/030209.html
>> [2] https://github.com/web-platform-tests/wpt.fyi/blob/master/api/query/README.md
>> [3] https://staging.wpt.fyi/insights
>> [4] https://bugs.chromium.org/p/chromium/issues/detail?id=896242
>> [5] https://bugzilla.mozilla.org/show_bug.cgi?id=1498357
>> [6] https://github.com/web-platform-tests/wpt.fyi/issues/new?title=Structured+Queries+issue&projects=web-platform-tests/wpt.fyi/8&labels=bug&template=search.md
>> [7] https://docs.google.com/document/d/1oWYVkc2ztANCGUxwNVTQHlWV32zq6Ifq9jkkbYNbSAg/edit?usp=sharing
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