Bug 309600 – [macOS iOS arm64] http/tests/xmlhttprequest/chunked-progress-event-expectedLength.html is a flaky text failure.

• Component: New Bugs
• Status: NEW

[Diego De La Toba]

http/tests/xmlhttprequest/chunked-progress-event-expectedLength.html is a flaky text failure on macOS and iOS arm64.


HISTORY:
https://results.webkit.org/?suite=layout-tests&test=http%2Ftests%2Fxmlhttprequest%2Fchunked-progress-event-expectedLength.html


TEXT DIFF:
--- /Volumes/Data/worker/Apple-Tahoe-Debug-AppleSilicon-WK2-Tests/build/layout-test-results/http/tests/xmlhttprequest/chunked-progress-event-expectedLength-expected.txt
+++ /Volumes/Data/worker/Apple-Tahoe-Debug-AppleSilicon-WK2-Tests/build/layout-test-results/http/tests/xmlhttprequest/chunked-progress-event-expectedLength-actual.txt
@@ -4,9 +4,9 @@
 
 
 Verify that the progress event total property is 0 when the expected overall length can't be computed.
-PASS Length is not computable
-PASS gotRelevantProgressEvent is true
+FAIL gotRelevantProgressEvent should be true. Was false.
 PASS successfullyParsed is true
+Some tests failed.
 
 TEST COMPLETE
 

DIFF URL:
https://build.webkit.org/results/Apple-Tahoe-Debug-AppleSilicon-WK2-Tests/308905@main%20(1206)/http/tests/xmlhttprequest/chunked-progress-event-expectedLength-pretty-diff.html


REPRODUCTION:
I was able to reproduce on macOS 26.2 Debug ToT with the following:

run-webkit-tests --force --no-retry --debug --iterations 1000 http/tests/xmlhttprequest/chunked-progress-event-expectedLength.html -f

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

[Radar WebKit Bug Importer]

<rdar://problem/172221286>

[Diego De La Toba]

Test gardening pull request: https://github.com/WebKit/WebKit/pull/60304

[EWS]

Test gardening commit 309015@main (2e76d6cc768f): <https://commits.webkit.org/309015@main>

Reviewed commits have been landed. Closing PR #60304 and removing active labels.

[Alexey Proskuryakov]

Previously attempted to deflate in bug 297063.