Bug 314560 – [macOS iOS] http/tests/site-isolation/compositing/iframes/resize-from-zero-size.html is a flaky text failure

• Component: New Bugs
• Status: RESOLVED FIXED

[Diego De La Toba]

http/tests/site-isolation/compositing/iframes/resize-from-zero-size.html is a flaky text failure on macOS and iOS.


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


DIFF:
--- /Volumes/Data/worker/Apple-Tahoe-Release-AppleSilicon-WK2-Tests/build/layout-test-results/http/tests/site-isolation/compositing/iframes/resize-from-zero-size-expected.txt
+++ /Volumes/Data/worker/Apple-Tahoe-Release-AppleSilicon-WK2-Tests/build/layout-test-results/http/tests/site-isolation/compositing/iframes/resize-from-zero-size-actual.txt
@@ -14,20 +14,19 @@
           (drawsContent 1)
           (children 1
             (GraphicsLayer
-              (children 1
+              (children 4
                 (GraphicsLayer
                   (anchor 0.00 0.00)
-                  (bounds 400.00 300.00)
                   (children 1
                     (GraphicsLayer
                       (anchor 0.00 0.00)
                       (children 1
                         (GraphicsLayer
                           (anchor 0.00 0.00)
-                          (bounds 400.00 300.00)
+                          (bounds 228.00 230.00)
                           (children 1
                             (GraphicsLayer
-                              (bounds 400.00 300.00)
+                              (bounds 228.00 230.00)
                               (drawsContent 1)
                               (children 1
                                 (GraphicsLayer
@@ -43,6 +42,21 @@
                     )
                   )
                 )
+                (GraphicsLayer
+                  (position 0.00 -15.00)
+                  (bounds -15.00 15.00)
+                  (drawsContent 1)
+                )
+                (GraphicsLayer
+                  (position -15.00 0.00)
+                  (bounds 15.00 -15.00)
+                  (drawsContent 1)
+                )
+                (GraphicsLayer
+                  (position -15.00 -15.00)
+                  (bounds 15.00 15.00)
+                  (drawsContent 1)
+                )
               )
             )
           )


DIFF URL:
https://build.webkit.org/results/Apple-Tahoe-Release-AppleSilicon-WK2-Tests/313006@main%20(3799)/http/tests/site-isolation/compositing/iframes/resize-from-zero-size-pretty-diff.html


REPRODUCTION:
I was able to reproduce this on macOS 26.4 release ToT with the following:

rubn-webkit-tests --release --force --no-retry -f --iterations 17 http/tests/site-isolation/compositing/iframes/resize-from-zero-size.html

I am going to mark expectations as pass fail while this pends investigation.

[Radar WebKit Bug Importer]

<rdar://problem/176799946>

[Diego De La Toba]

Looks like a de-flake was attempted at 312742@main.

[Diego De La Toba]

Test gardening pull request: https://github.com/WebKit/WebKit/pull/64684

[EWS]

Test gardening commit 313014@main (e6f70e39a994): <https://commits.webkit.org/313014@main>

Reviewed commits have been landed. Closing PR #64684 and removing active labels.

[Diego De La Toba]

Pull request: https://github.com/WebKit/WebKit/pull/64686

[EWS]

Committed 313110@main (0fd177fb1b30): <https://commits.webkit.org/313110@main>

Reviewed commits have been landed. Closing PR #64686 and removing active labels.