Bug 215773 – [ iOS wk2 macOS wk1 ] http/tests/websocket/tests/hybi/client-close-2.html is a flaky failure

• Status: NEW
• Component: New Bugs

[Hector Lopez]

http/tests/websocket/tests/hybi/client-close-2.html

Test is a flaky failure according to history on iOS wk2. First occurrence is at r265963 but no indication revision is cause.

History:
https://results.webkit.org/?suite=layout-tests&test=http%2Ftests%2Fwebsocket%2Ftests%2Fhybi%2Fclient-close-2.html&limit=50000&platform=ios

Diff:
--- /Volumes/Data/slave/ipados-simulator-13-release-tests-wk2/build/layout-test-results/http/tests/websocket/tests/hybi/client-close-2-expected.txt
+++ /Volumes/Data/slave/ipados-simulator-13-release-tests-wk2/build/layout-test-results/http/tests/websocket/tests/hybi/client-close-2-actual.txt
@@ -5,7 +5,7 @@
 Connected
 Closed
 PASS receivedMessage is undefined.
-PASS closeEvent.reason is "close_frame[:2]='\\x88\\x82'"
+FAIL closeEvent.reason should be close_frame[:2]='\x88\x82'. Was .
 PASS successfullyParsed is true
 
 TEST COMPLETE

[Radar WebKit Bug Importer]

<rdar://problem/67685669>

[Hector Lopez]

Test expectation while investigated:

https://trac.webkit.org/changeset/266067/webkit

[Karl Rackler]

Description:
http/tests/websocket/tests/hybi/client-close-2.html is a flaky failure on macOS wk1.

The test was added at 228451@main and shortly thereafter has been a flaky failure on macOS wk1.
The first flaky failure looks at 230927@main removing whitespace and does not seem to be the regression point.
We have had flaky failures on this test since Catalina.  A thorough investigation is necessary to address this issue.

This issue can be reproduced using command:
run-webkit-tests --release -1 --no-retry --force --iterations=50 http/tests/websocket/tests/hybi/client-close-2.html

[Karl Rackler]

Diff: 
@@ -5,7 +5,7 @@
 Connected
 Closed
 PASS receivedMessage is undefined.
-PASS closeEvent.reason is "close_frame[:2]=b'\\x88\\x82'"
+FAIL closeEvent.reason should be close_frame[:2]=b'\x88\x82'. Was .
 PASS successfullyParsed is true
 
 TEST COMPLETE

[EWS]

Test gardening commit 290627@main (b0afdfc60917): <https://commits.webkit.org/290627@main>

Reviewed commits have been landed. Closing PR #40876 and removing active labels.