Bug 309850 – [macOS Debug] imported/w3c/web-platform-tests/uievents/mouse/mouse_boundary_events_after_removing_last_over_element.html is flaky failure

• Component: UI Events
• Status: NEW

[Marta Darbinyan]

The following test is flaky failure on macOS Debug.

imported/w3c/web-platform-tests/uievents/mouse/mouse_boundary_events_after_removing_last_over_element.html

Error:
 FAIL After removing the last over element, redundant mouseenter events should not be fired on the ancestors assert_equals: expected "mouseover@div#parent, mouseout@div#parent, mouseleave@div#parent, mouseleave@div#grandparent, mouseover@body, mousemove@body" but got "mouseover@body, mousemove@body"
-FAIL After removing the root element in the shadow under the cursor, mouseleave events should be targeted outside the shadow, but redundant mouseenter events should not be fired assert_equals: expected "mouseover@div#shadowHost, mouseout@div#shadowHost, mouseleave@div#shadowHost, mouseleave@div#containerOfShadowHost, mouseover@body, mousemove@body" but got "mouseover@body, mousemove@body"
+PASS After removing the root element in the shadow under the cursor, mouseleave events should be targeted outside the shadow, but redundant mouseenter events should not be fired
 

History:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fuievents%2Fmouse%2Fmouse_boundary_events_after_removing_last_over_element.html&style=debug

Test results:
https://ews-build.webkit.org/#/builders/161/builds/18653

[Radar WebKit Bug Importer]

<rdar://problem/172425607>

[EWS]

Test gardening commit 309219@main (fc3e0818334c): <https://commits.webkit.org/309219@main>

Reviewed commits have been landed. Closing PR #60574 and removing active labels.