Bug 245855

Summary:	REGRESSION (iOS16): [ iOS ] Two TestWebKitAPI.WKWebViewCloseAllMediaPresentations tests are a flaky timeout
Product:	WebKit	Reporter:	Karl Rackler <rackler>
Component:	New Bugs	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED CONFIGURATION CHANGED
Severity:	Normal	CC:	eric.carlson, hi, jer.noble, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Karl Rackler 2022-09-29 17:01:45 PDT

Description:
TestWebKitAPI.WKWebViewCloseAllMediaPresentationsInternal.PictureInPicture
TestWebKitAPI.WKWebViewCloseAllMediaPresentations.PictureInPicture

The first flaky timeout I saw on the dashboard was on 9/14/2022 at 254499@main after the upgrade from iOS 15 to iOS16 on the bots.  These are only flaky timeouts on iOS16 using the iPad (9th generation) model.

Reproduction steps:
I can reproduce this on 255006@main ToT.

Command: 
run-api-tests --iterations 15 --ipad-simulator --model 'iPad (9th generation)' TestWebKitAPI.WKWebViewCloseAllMediaPresentations.PictureInPicture

History:
https://results.webkit.org/?platform=ios&limit=50000&recent=false&suite=api-tests&suite=api-tests&test=TestWebKitAPI.WKWebViewCloseAllMediaPresentations.PictureInPicture&test=TestWebKitAPI.WKWebViewCloseAllMediaPresentationsInternal.PictureInPicture

Timeout
    TestWebKitAPI.WKWebViewCloseAllMediaPresentations.PictureInPicture
    TestWebKitAPI.WKWebViewCloseAllMediaPresentationsInternal.PictureInPicture

Comment 1 Radar WebKit Bug Importer 2022-09-29 17:02:11 PDT

<rdar://problem/100588574>

Comment 2 Ryan Haddad 2023-05-09 13:15:17 PDT

https://results.webkit.org/?platform=ios&limit=50000&recent=false&suite=api-tests&suite=api-tests&test=TestWebKitAPI.WKWebViewCloseAllMediaPresentations.PictureInPicture&test=TestWebKitAPI.WKWebViewCloseAllMediaPresentationsInternal.PictureInPicture&architecture=arm64&architecture=x86_64 suggests that this test was timing out when the bots running simulator tests were x86, but once we switched to arm64 + iOS 16.4 (simultaneously) the tests are no longer timing out.