Bug 216770 - [GLIB] imported/w3c/web-platform-tests/css/css-flexbox/flexbox_stf-table-singleline.html is an image only failure since r267183
Summary: [GLIB] imported/w3c/web-platform-tests/css/css-flexbox/flexbox_stf-table-sing...
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: CSS (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2020-09-21 03:37 PDT by Diego Pino
Modified: 2022-01-02 18:04 PST (History)
2 users (show)

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Description Diego Pino 2020-09-21 03:37:14 PDT
These two tests started failing in r267183:

  imported/w3c/web-platform-tests/css/css-flexbox/flexbox_stf-table-singleline.html
  imported/w3c/web-platform-tests/css/css-flexbox/flexbox_stf-table-singleline-2.html

The tests were marked as ImageOnlyFailure, but were removed from test expectations in r267183. The post-commit bots report these tests as ImageOnlyFailure since then.

See: https://build.webkit.org/results/WPE%20Linux%2064-bit%20Release%20(Tests)/r267334%20(20105)/imported/w3c/web-platform-tests/css/css-flexbox/flexbox_stf-table-singleline-2-diffs.html
Comment 1 Sergio Villar Senin 2020-09-22 06:37:13 PDT
Do all ports report that issue?

I say this because I locally have a 1px diff in those tests but it's caused by font rendering.
Comment 2 Radar WebKit Bug Importer 2020-09-28 03:38:19 PDT
<rdar://problem/69689806>
Comment 3 Diego Pino 2020-10-05 11:15:01 PDT
Since the tests were removed from test expectations in r267183, these two tests are passsing in iOS and Mac, for example, but they're failing in GTK and WPE.

https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-flexbox%2Fflexbox_stf-table-singleline.html&platform=GTK&platform=WPE&platform=ios&platform=mac
Comment 4 Sergio Villar Senin 2020-10-06 01:06:53 PDT
(In reply to Diego Pino from comment #3)
> Since the tests were removed from test expectations in r267183, these two
> tests are passsing in iOS and Mac, for example, but they're failing in GTK
> and WPE.
> 
> https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-
> platform-tests%2Fcss%2Fcss-flexbox%2Fflexbox_stf-table-singleline.
> html&platform=GTK&platform=WPE&platform=ios&platform=mac

Yeah that's what I have observed too. The thing is that the failure is caused by a 1px difference rendering fonts. I'll submit a PR to wpt which sets the Ahem font because the actual text is irrelevant for the test.
Comment 5 Sergio Villar Senin 2020-10-06 01:14:16 PDT
PR uploaded https://github.com/web-platform-tests/wpt/pull/26005