Bug 261460

Summary:	Running WPT for WebVTT in run-webkit-tests results in a timeout
Product:	WebKit	Reporter:	Kueno <kohei.ueno119>
Component:	Tools / Tests	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Kueno 2023-09-12 00:45:00 PDT

As reported in https://bugs.webkit.org/show_bug.cgi?id=179370#c2, running WPT for WebVTT in run-webkit-tests results in a timeout. This is due to the caption mode of WebKitTestRunner being defaulted to `ForceOnly`, under which conditions the captions never appear. This is not a problem for LayoutTests other than WPT because we can adjust the caption mode with `window.internals.setCaptionDisplayMode('Automatic')` to ensure correct caption display during testing.

To resolve this issue, we need to make the caption mode configurable in run-webkit-tests instead of using the internal method in the window object.

Comment 1 Kueno 2023-09-12 00:46:03 PDT

Pull request: https://github.com/WebKit/WebKit/pull/17689

Comment 2 EWS 2023-09-17 19:07:43 PDT

Committed 268073@main (2e6a6bb78167): <https://commits.webkit.org/268073@main>

Reviewed commits have been landed. Closing PR #17689 and removing active labels.

Comment 3 Radar WebKit Bug Importer 2023-09-17 19:08:15 PDT

<rdar://problem/115635936>