Bug 219438 - [ iOS ] fast/canvas/canvas-overflow-hidden-animation.html is a flaky failure
Summary: [ iOS ] fast/canvas/canvas-overflow-hidden-animation.html is a flaky failure
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: Canvas (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2020-12-02 10:16 PST by Truitt Savell
Modified: 2021-04-08 05:40 PDT (History)
5 users (show)

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Description Truitt Savell 2020-12-02 10:16:14 PST 
fast/canvas/canvas-overflow-hidden-animation.html

It looks like the test is failing with a 1 pixel wide yellow boarder around the green square.

I am able to reproduce this locally using command:
run-webkit-tests --iterations 2000 --exit-after-n-failures 1 --exit-after-n-crashes-or-timeouts 1 --debug-rwt-logging --no-retry --force --no-build -f --ios-simulator fast/canvas/canvas-overflow-hidden-animation.html

History:
https://results.webkit.org/?suite=layout-tests&test=fast%2Fcanvas%2Fcanvas-overflow-hidden-animation.html

Diff:
https://build.webkit.org/results/Apple-iOS-14-Simulator-Release-WK2-Tests/r270345%20(1086)/fast/canvas/canvas-overflow-hidden-animation-diffs.html
Comment 1 Radar WebKit Bug Importer 2020-12-02 10:16:32 PST 
<rdar://problem/71899754>
Comment 2 Truitt Savell 2020-12-02 15:12:37 PST 
Marked test as failing in https://trac.webkit.org/changeset/270374/webkit
Comment 3 Kimmo Kinnunen 2021-03-18 02:47:58 PDT 
Happens on macOS too.
Comment 4 Antoine Quint 2021-04-08 05:40:18 PDT 
The last failure was on March 18, 3 weeks ago today, on iOS 14 Simulator wk2 Release on iPhone SE (1st generation) with x86_64. Before that it was March 16, 15 and 11 on the same bot.