Bug 284653 – REGRESSION (285002@main): [ iOS macOS wk2 ] http/tests/site-isolation/compositing/iframes/resize-from-zero-size.html is a flaky failure

• Component: New Bugs
• Status: NEW

[Karl Rackler]

Description:
http/tests/site-isolation/compositing/iframes/resize-from-zero-size.html

The test was added at https://commits.webkit.org/284782@main and has been a flaky failure since then.

There was a fix implemented with commit https://commits.webkit.org/284932@main that fixed the test, and it was constantly passing until it was reverted at commit https://commits.webkit.org/285002@main, rendering the test to a flaky failure again.

This issue can be reproduced using command:
run-webkit-tests --debug --no-retry --force -f --iterations=50 http/tests/site-isolation/compositing/iframes/resize-from-zero-size.html

History:
https://results.webkit.org/?suite=layout-tests&test=http%2Ftests%2Fsite-isolation%2Fcompositing%2Fiframes%2Fresize-from-zero-size.html

Diff:
               (children 1
                 (GraphicsLayer
                   (anchor 0.00 0.00)
-                  (bounds 400.00 300.00)
+                  (bounds 800.00 600.00)
                   (children 1
                     (GraphicsLayer
                       (anchor 0.00 0.00)
                       (children 1
                         (GraphicsLayer
                           (anchor 0.00 0.00)
-                          (bounds 400.00 300.00)
+                          (bounds 800.00 600.00)
                           (children 1
                             (GraphicsLayer
-                              (bounds 400.00 300.00)
+                              (bounds 800.00 600.00)
                               (drawsContent 1)
                               (children 1
                                 (GraphicsLayer

[Radar WebKit Bug Importer]

<rdar://problem/141457587>

[EWS]

Test gardening commit 287813@main (efc216e81462): <https://commits.webkit.org/287813@main>

Reviewed commits have been landed. Closing PR #37934 and removing active labels.

[Matt Woodrow]

Pull request: https://github.com/WebKit/WebKit/pull/39313