On 10/17/18 11:56 AM, James Graham wrote:
On 17/10/2018 10:12, James Graham wrote:
On 17/10/2018 01:23, Emilio Cobos Álvarez wrote:
Hi Philip,
Do you know how do reftests run in order to get that data?
I'm particularly curious about this Firefox-only failure:
css/selectors/selection-image-001.html
It passes both on our automation and locally. I'm curious because I
was the author of that test (whoops) and the Firefox fix (bug 1449010).
Does it use the same mechanism than our automation to wait for image
decodes and such? Is there any way to see the test images?
It's using the same harness as we use in gecko, so it should be giving
the same results, but of course it's possible that there's some
difference in the configuration that could cause different results for
some tests.
Unfortunately there isn't yet a way to see the images; because of the
number of failures per run, and the number of runs, putting all the
screenshots in the logs would be prohibitively large, but there is a
plan to start uploading previously unseen screenshots to wpt.fyi [1]
OK, I investigated this and it turns out that we accidentally started
uploading tbpl-style logs with screenshots for full runs when we turned
on taskcluster for PRs. So the screenshot is available through
https://hg.mozilla.org/mozilla-central/raw-file/tip/layout/tools/reftest/reftest-analyzer.xhtml#logurl=https://taskcluster-artifacts.net/U6OIGr7ZTjurDYjy_KgyCg/0/public/results/log_tbpl.log
Thanks! So it looks that the reftest screenshots are taken on inactive
windows?
We don't respect ::selection for inactive windows, so the failure now
makes sense.
Still I think there's something fishy there, but it may be related to
the widget toolkit that is on wpt's CI or something...
-- Emilio
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