[webkit-dev] Huge improvement in Safari results on wpt.fyi

[Dean Jackson]

It turns out that many (most?) of the CSS failures are because we no longer expose user-installed fonts, e.g. Ahem.

Options:

- update lots of tests to load Ahem via @font-face (yuck)
- allow Ahem to be used if installed (weird to special case one font, but probably ok)

Dean

> On 12 Oct 2018, at 03:26, Philip Jägenstedt <foolip at chromium.org> wrote:
> 
> Alright, I've written a one-off script [1] to find the Safari-only
> failures, and here's the output:
> https://gist.github.com/foolip/4d410ce79416bcdce71feb212159a02e
> 
> Barring bugs, each of linked tests or one of its subtests should be
> failing in Safari Technology Preview and passing in stable versions of
> Chrome, Edge and Firefox.
> 
> Numerically, most of the failures are in css (622), encoding (135) and
> html (60). With css, it's mostly css/CSS2.
> 
> I hope looking through this may be of use to you!
> 
> [1] https://github.com/foolip/ad-hoc-wpt-results-analysis
> 
> On Mon, Oct 8, 2018 at 11:50 PM Philip Jägenstedt <foolip at chromium.org> wrote:
>> 
>> That filtering capability unfortunately does not yet exist on wpt.fyi
>> but it's a high priority and actively being worked on:
>> https://github.com/web-platform-tests/wpt.fyi/issues/201
>> 
>> FWIW, I suspect that these purposes, comparing to the stable versions
>> of all *other* browsers might be the most useful:
>> https://wpt.fyi/results/?product=chrome%5Bstable%5D&product=edge%5Bstable%5D&product=firefox%5Bstable%5D&product=safari%5Bexperimental%5D&aligned
>> 
>> Again, no way to filter on wpt.fyi, but I'll see if I can download the
>> full results and write a quick script.
>> 
>> On Thu, Oct 4, 2018 at 11:49 PM Ryosuke Niwa <rniwa at webkit.org> wrote:
>>> 
>>> Thanks for the intriguing data, Philip.
>>> 
>>> Is there a way to get a list of tests where all other browsers pass but Safari / WebKit fail?
>>> 
>>> That would allow us to quickly identify the set of tests we can fix to improve the interoperability across browsers right away.
>>> 
>>> - R. Niwa
>>> 
>>> On Tue, Oct 2, 2018 at 3:45 AM Philip Jägenstedt <foolip at chromium.org> wrote:
>>>> 
>>>> Hi WebKittens,
>>>> 
>>>> Fresh off the bots, I'm excited to report more robust Safari results,
>>>> and that Safari WPT pass rates are clearly improving! Thanks to the
>>>> hard work of Mike Pennisi [1] we now have the first Safari 12 results:
>>>> https://wpt.fyi/results/?sha=ee2e69bfb1&product=safari-12.0
>>>> 
>>>> This uses the same setup as for Safari Technology Preview, which has
>>>> been running for a while [2] and are the results you see on the
>>>> "experimental" view:
>>>> https://wpt.fyi/results/?label=experimental
>>>> 
>>>> This appears much more robust than the Safari 11 data we've collected
>>>> from Sauce Labs, and we can see a massive improvement between Safari
>>>> 11 and 12:
>>>> https://wpt.fyi/results/?sha=ee2e69bfb1&product=safari-11.1&product=safari-12.0&diff
>>>> 
>>>> This lumps together infrastructure improvements as well as Safari
>>>> 11->12 improvements, but improvements in service-workers/ [3] stands
>>>> out, as well as in webdriver/, referrer-policy/, css/css-align/, and
>>>> others. (The effect of moving away from Sauce is mainly less
>>>> timeouts.)
>>>> 
>>>> Also very interesting is to compare Safari 12 stable to TP:
>>>> https://wpt.fyi/results/?sha=ee2e69bfb1&product=safari-12.0&product=safari-12.1&diff
>>>> 
>>>> One can tell that work is going in canvas-related things,
>>>> web-animations/, css/css-logical/ and more! \o/
>>>> 
>>>> I hope you'll all find these results valuable, and please report bugs
>>>> or feature requests here:
>>>> https://github.com/web-platform-tests/wpt.fyi/issues
>>>> 
>>>> P.S. We're also trying to use use these diff views to spot
>>>> regressions. It's a bit hard to use, [4] but a fix in in progress [5]
>>>> and I might check back here when that works. I'll append to the end of
>>>> this email a non-exhaustive list of possible regressions already
>>>> possible to spot.
>>>> 
>>>> [1] https://github.com/web-platform-tests/results-collection/issues/604
>>>> [2] https://wpt.fyi/test-runs?labels=safari,experimental
>>>> [3] https://wpt.fyi/results/service-workers?sha=ee2e69bfb1&product=safari-11.1&product=safari-12.0&diff=true
>>>> [4] https://github.com/web-platform-tests/wpt.fyi/issues/411
>>>> [5] https://github.com/web-platform-tests/wpt.fyi/pull/609
>>>> 
>>>> P.P.S. Possible regressions in Safari TP:
>>>> https://wpt.fyi/results/css/vendor-imports/mozilla/mozilla-central-reftests/shapes1?sha=ee2e69bfb1&product=safari-12.0&product=safari-12.1
>>>> https://wpt.fyi/results/service-workers/service-worker/extendable-event-async-waituntil.https.html?sha=ee2e69bfb1&product=safari-12.0&product=safari-12.1
>>>> https://wpt.fyi/results/service-workers/service-worker/skip-waiting-installed.https.html?sha=ee2e69bfb1&product=safari-12.0&product=safari-12.1
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