Bug 232276 - Regression(r283935): [ macOS wk1 ] imported/w3c/web-platform-tests/html/interaction/focus/the-autofocus-attribute/spin-by-blocking-style-sheet.html is a flaky failure
Summary: Regression(r283935): [ macOS wk1 ] imported/w3c/web-platform-tests/html/inter...
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:
 
Reported: 2021-10-25 15:06 PDT by ayumi_kojima
Modified: 2021-11-08 15:31 PST (History)
5 users (show)

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Description ayumi_kojima 2021-10-25 15:06:49 PDT 
imported/w3c/web-platform-tests/html/interaction/focus/the-autofocus-attribute/spin-by-blocking-style-sheet.html

Is a flaky failure on macOS wk1. The test is especially flaky and almost constantly failing on Big Sur E wk1 Release.

History: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Finteraction%2Ffocus%2Fthe-autofocus-attribute%2Fspin-by-blocking-style-sheet.html

Result page: https://build.webkit.org/results/Apple-BigSur-Release-AppleSilicon-WK1-Tests/r284819%20(5780)/results.html

Diff:

--- /Volumes/Data/worker/bigsur-release-applesilicon-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/html/interaction/focus/the-autofocus-attribute/spin-by-blocking-style-sheet-expected.txt
+++ /Volumes/Data/worker/bigsur-release-applesilicon-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/html/interaction/focus/the-autofocus-attribute/spin-by-blocking-style-sheet-actual.txt
@@ -1,4 +1,6 @@
 
 
-PASS Script-blocking style sheet should pause flushing autofocus candidates.
+Harness Error (TIMEOUT), message = null
 
+TIMEOUT Script-blocking style sheet should pause flushing autofocus candidates. Test timed out
+
Comment 1 Radar WebKit Bug Importer 2021-10-25 15:07:11 PDT 
<rdar://problem/84633007>
Comment 2 ayumi_kojima 2021-10-25 15:09:52 PDT 
According to the history, the test started becoming flaky at around r283935.
Comment 3 ayumi_kojima 2021-10-25 15:10:10 PDT 
Marked test expectations https://trac.webkit.org/changeset/284840/webkit
Comment 4 ayumi_kojima 2021-10-25 17:20:06 PDT 
I was able to reproduce the failure locally at TOT using run-webkit-tests -force -1 imported/w3c/web-platform-tests/html/interaction/focus/the-autofocus-attribute/spin-by-blocking-style-sheet.html  --iterations 50 --exit-after-n-failures 1
Comment 5 ayumi_kojima 2021-10-28 09:12:28 PDT 
The test failed with r283935 and passed with r283934.
Comment 6 Chris Dumez 2021-11-08 15:09:27 PST 
This may be a dupe of Bug 231918. I cannot reproduce however so I cannot confirm.
Comment 7 Chris Dumez 2021-11-08 15:31:57 PST 
(In reply to Chris Dumez from comment #6)
> This may be a dupe of Bug 231918. I cannot reproduce however so I cannot
> confirm.

No, I don't think it is a dupe after all.