REGRESSION (r283935): imported/w3c/web-platform-tests/shadow-dom/focus/focus-pseudo-matches-on-shadow-host.html is a flaky failure

• Component: DOM
• Status: RESOLVED FIXED

[Ryan Haddad]

imported/w3c/web-platform-tests/shadow-dom/focus/focus-pseudo-matches-on-shadow-host.html has become a flaky failure after https://trac.webkit.org/changeset/283935/webkit

--- /Volumes/Data/worker/catalina-release-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/shadow-dom/focus/focus-pseudo-matches-on-shadow-host-expected.txt
+++ /Volumes/Data/worker/catalina-release-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/shadow-dom/focus/focus-pseudo-matches-on-shadow-host-actual.txt
@@ -1,9 +1,11 @@
 
 
-PASS :focus must not match a shadow host with open mode shadow root that does not contain the focused element
-PASS :focus must match a shadow host with open mode shadow root that contains the focused element
-PASS :focus must not match a shadow host with open mode shadow root contains the focused element assigned to a slot
-PASS :focus must not match a shadow host with closed mode shadow root that does not contain the focused element
-PASS :focus must match a shadow host with closed mode shadow root that contains the focused element
-PASS :focus must not match a shadow host with closed mode shadow root contains the focused element assigned to a slot
+Harness Error (TIMEOUT), message = null
 
+TIMEOUT :focus must not match a shadow host with open mode shadow root that does not contain the focused element Test timed out
+NOTRUN :focus must match a shadow host with open mode shadow root that contains the focused element
+NOTRUN :focus must not match a shadow host with open mode shadow root contains the focused element assigned to a slot
+NOTRUN :focus must not match a shadow host with closed mode shadow root that does not contain the focused element
+NOTRUN :focus must match a shadow host with closed mode shadow root that contains the focused element
+NOTRUN :focus must not match a shadow host with closed mode shadow root contains the focused element assigned to a slot
+

https://build.webkit.org/results/Apple-Catalina-Release-WK1-Tests/r284277%20(6392)/results.html

https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fshadow-dom%2Ffocus%2Ffocus-pseudo-matches-on-shadow-host.html

[Radar WebKit Bug Importer]

<rdar://problem/84322846>

[Tim Nguyen (:ntim)]

Created attachment 441564 [details]
Patch

[EWS]

Committed r284360 (243145@main): <https://commits.webkit.org/243145@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 441564 [details].