Bug 223558

Summary: Streams: new test failure for canceling the branches of an errored tee'd stream
Product: WebKit Reporter: Mattias Buelens <mattias.buelens>
Component: WebCore Misc.Assignee: youenn fablet <youennf>
Status: RESOLVED FIXED    
Severity: Normal CC: achristensen, benjamin, calvaris, clopez, ews-watchlist, gsnedders, joepeck, webkit-bug-importer, youennf
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch none

Description Mattias Buelens 2021-03-20 16:10:22 PDT 
The WPT test "ReadableStream teeing: erroring a teed stream should properly handle canceled branches" was improved in https://github.com/web-platform-tests/wpt/pull/28153. The test now checks that the cancel promises of the two branches are rejected with the correct reason.

This updated test fails in Safari, see: https://wpt.fyi/results/streams/readable-streams/tee.any.html?diff&filter=ADC&run_id=5700976721788928&run_id=5767793259577344
Chrome, Edge and Firefox still pass the updated test.
Comment 1 Radar WebKit Bug Importer 2021-03-27 16:11:11 PDT 
<rdar://problem/75924807>
Comment 2 youenn fablet 2021-04-07 08:49:31 PDT 
Created attachment 425401 [details]
Patch
Comment 3 EWS Watchlist 2021-04-07 08:50:36 PDT 
This patch modifies the imported WPT tests. Please ensure that any changes on the tests (not coming from a WPT import) are exported to WPT. Please see https://trac.webkit.org/wiki/WPTExportProcess
Comment 4 EWS 2021-04-08 11:37:40 PDT 
Committed r275667 (236303@main): <https://commits.webkit.org/236303@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 425401 [details].