Bug 217478 - REGRESSION (r268138): [ Mojave+ wk1 ] imported/w3c/web-platform-tests/css/css-masking/clip-path/clip-path-descendant-text-mutated-001.html is a flaky image failure
Summary: REGRESSION (r268138): [ Mojave+ wk1 ] imported/w3c/web-platform-tests/css/css...
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: New Bugs (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks: 126207
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Reported: 2020-10-08 08:56 PDT by Karl Rackler
Modified: 2020-12-02 18:53 PST (History)
4 users (show)

See Also:


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Description Karl Rackler 2020-10-08 08:56:41 PDT
Description:
imported/w3c/web-platform-tests/css/css-masking/clip-path/clip-path-descendant-text-mutated-001.html

The first flaky image failure that I see this on the dashboard was 10/07/20 at r268142, but is not relevant to what would have caused this.

The test is part of an import of all clip-path WPTs at r268138 and has been a flaky image failure since it was introduced.

The test was expecting a width: 100px; height: 100px; background-color: green, but instead returned and additional width: 100px; height: 100px; background-color: red.

REPRODUCTION STEPS
Command: 
run-webkit-tests -1 imported/w3c/web-platform-tests/css/css-masking/clip-path/clip-path-descendant-text-mutated-001.html

Result: 
Regressions: Unexpected image-only failures (1)
  imported/w3c/web-platform-tests/css/css-masking/clip-path/clip-path-descendant-text-mutated-001.html [ ImageOnlyFailure ]

History:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-masking%2Fclip-path%2Fclip-path-descendant-text-mutated-001.html&version_name=Catalina&version_name=Mojave&flavor=wk1&limit=50000

Image Results:
https://build.webkit.org/results/Apple-Catalina-Release-WK1-Tests/r268179%20(9704)/imported/w3c/web-platform-tests/css/css-masking/clip-path/clip-path-descendant-text-mutated-001-diffs.html
Comment 1 Radar WebKit Bug Importer 2020-10-08 08:57:03 PDT
<rdar://problem/70095123>
Comment 2 Karl Rackler 2020-10-08 09:08:33 PDT
I have marked this test as Image Only Failure while this issue is investigated.
https://trac.webkit.org/changeset/268183/webkit