1729947 - Intermittent /css/css-text-decor/text-emphasis-color-001.xht | Testing http://web-platform.test:8000/css/css-text-decor/text-emphasis-color-001.xht == http://web-platform.test:8000/css/css-text-decor/reference/text-emphasis-color-001-ref.xht

Status: RESOLVED FIXED

(Core :: Layout: Text and Fonts, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: apavel [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=351042251&repo=mozilla-central
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/TDNobcbnQPOnjVPIKjiSYA/runs/0/artifacts/public/logs/live_backing.log
Reftest URL: https://hg.mozilla.org/mozilla-central/raw-file/tip/layout/tools/reftest/reftest-analyzer.xhtml#logurl=https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/TDNobcbnQPOnjVPIKjiSYA/runs/0/artifacts/public/logs/live_backing.log&only_show_unexpected=1

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[task 2021-09-09T16:18:54.020Z] 16:18:54     INFO - TEST-START | /css/css-text-decor/text-emphasis-color-001.xht
[task 2021-09-09T16:18:54.632Z] 16:18:54     INFO - TEST-UNEXPECTED-FAIL | /css/css-text-decor/text-emphasis-color-001.xht | Testing http://web-platform.test:8000/css/css-text-decor/text-emphasis-color-001.xht == http://web-platform.test:8000/css/css-text-decor/reference/text-emphasis-color-001-ref.xht
[task 2021-09-09T16:18:54.632Z] 16:18:54     INFO - Found 12711 pixels different, maximum difference per channel 255

Comment 1

[Jonathan Kew [:jfkthame]]

Looks like an async-font-fallback issue: the screenshot shows the reference image having been captured before fallback completed. We should disable the async behavior here to make these tests more reliable (this might affect several of the symbols used for emphasis marks).

Comment 2

[Jonathan Kew [:jfkthame]]

Attachment: Bug 1729947 - Force sync font fallback in text-decoration tests, because some of the emphasis marks may depend on fallback fonts. r=#layout-reviewers

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/3a733d9c928d
Force sync font fallback in text-decoration tests, because some of the emphasis marks may depend on fallback fonts. r=emilio

Comment 4

[Sandor Molnar[:smolnar]]

https://hg.mozilla.org/mozilla-central/rev/3a733d9c928d

Comment 5

[Intermittent Failures Robot]

2 failures in 3266 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1
• autoland: 1

Platform and build breakdown:

• android-em-7-0-x86_64-qr: 2
  • debug: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1729947&startday=2021-09-06&endday=2021-09-12&tree=all