[Webkit-unassigned] [Bug 194602] New: [ Mac WK2 ] REGRESSION (r234440) Layout Test http/tests/storageAccess/request-and-grant-access-then-detach-should-not-have-access.html is a flaky failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=194602

            Bug ID: 194602
           Summary: [ Mac WK2 ] REGRESSION (r234440) Layout Test
                    http/tests/storageAccess/request-and-grant-access-then
                    -detach-should-not-have-access.html is a flaky failure
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sroberts at apple.com
                CC: lforschler at apple.com

The following layout test is flaky on Mac WK2

http/tests/storageAccess/request-and-grant-access-then-detach-should-not-have-access.html

Probable cause:

Is a flaky failure since r234440 when test was edited. 

Reproducible locally with:

run-webkit-tests t234440 http/tests/storageAccess/request-and-grant-access-then-detach-should-not-have-access.html --iterations 500 -f --exit-after-n-failures=1 --no-retry-failures

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=http%2Ftests%2FstorageAccess%2Frequest-and-grant-access-then-detach-should-not-have-access.html

Diff:

--- /Volumes/Data/slave/mojave-release-tests-wk2/build/layout-test-results/http/tests/storageAccess/request-and-grant-access-then-detach-should-not-have-access-expected.txt
+++ /Volumes/Data/slave/mojave-release-tests-wk2/build/layout-test-results/http/tests/storageAccess/request-and-grant-access-then-detach-should-not-have-access-actual.txt
@@ -1,12 +1,5 @@
-Tests that a cross-origin iframe from a prevalent domain that is granted storage access and then is detached from the DOM does not have storage access.
+#PID UNRESPONSIVE - com.apple.WebKit.WebContent.Development (pid 37845)
+FAIL: Timed out waiting for notifyDone to be called

-On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
-
-
-PASS Storage access was granted. document.cookie == firstPartyCookie=value, cookies seen server-side == {"firstPartyCookie":"value"}
-PASS There is a storage access entry for localhost.
-PASS There is no storage access entry for localhost after iframe detach.
-PASS successfullyParsed is true

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