Bug 226789 – [iOS 14] imported/w3c/web-platform-tests/webstorage/event_case_sensitive.html is a flaky failure

• Status: NEW
• Component: New Bugs

[Amir Mark Jr]

imported/w3c/web-platform-tests/webstorage/event_case_sensitive.html

Is a flaky failure on iOS 14 WK2 Release for iPhone, iOS Wk2 Release for iPad, and iOS 14 Wk2 Debug.


History:

https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fwebstorage%2Fevent_case_sensitive.html


Text Diff:

--- /Volumes/Data/worker/ios-simulator-14-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/webstorage/event_case_sensitive-expected.txt
+++ /Volumes/Data/worker/ios-simulator-14-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/webstorage/event_case_sensitive-actual.txt
@@ -1,4 +1,4 @@
 
 PASS sessionStorage storage events fire even when only the case of the value changes.
-PASS localStorage storage events fire even when only the case of the value changes.
+FAIL localStorage storage events fire even when only the case of the value changes. assert_unreached: got at least 1, expected only 0 events Reached unreachable code

[Radar WebKit Bug Importer]

<rdar://problem/79042170>

I was not able to reproduce the failure on the simulator (iOS15) on my local machine using: 

run-webkit-tests --ios-simulator --iterations 50 --exit-after-n-failures 2 --exit-after-n-crashes-or-timeouts 2 imported/w3c/web-platform-tests/webstorage/event_case_sensitive.html 

The test timed out. It hanged with --no-timeout flag.

Looks like the test has been flaky for long time. The oldest revision that marked as failure is r277144. It seems the test was introduced at r277004.

Updated test expectations https://trac.webkit.org/changeset/280263/webkit

The test is flaky on macOS-Catalina-Release-WK2-Tests-EWS.

Updated test expectations for Catalina so that it won't show up on EWS. https://trac.webkit.org/changeset/281469/webkit