Bug 187766 – [ WK2 ] Layout Test http/wpt/service-workers/update-service-worker.https.html is a flaky Timeout

• Status: RESOLVED
• Resolution: FIXED
• Component: Tools / Tests

[Truitt Savell]

The following layout test is flaky on MacOS WK2

http/wpt/service-workers/update-service-worker.https.html

Probable cause:

Issue seems to have been around for a while. the tests are very intermittent in their timeouts. They seem to happen more often on Release builds

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=http%2Fwpt%2Fservice-workers%2Fupdate-service-worker.https.html

Test Text Diff:
--- /Volumes/Data/slave/highsierra-release-tests-wk2/build/layout-test-results/http/wpt/service-workers/update-service-worker.https-expected.txt
+++ /Volumes/Data/slave/highsierra-release-tests-wk2/build/layout-test-results/http/wpt/service-workers/update-service-worker.https-actual.txt
@@ -1,4 +1,5 @@
+#PID UNRESPONSIVE - com.apple.WebKit.WebContent.Development (pid 54789)
+FAIL: Timed out waiting for notifyDone to be called
 
-PASS Setup worker 
-PASS Ensure all fetches are intercepted 
-
+#EOF
+#EOF

[Truitt Savell]

Marked test as flaky in r233923 https://trac.webkit.org/changeset/233923/webkit

[Jacob Uphoff]

Test is also flaky failing now

[Radar WebKit Bug Importer]

<rdar://problem/59459120>

[Ryan Haddad]

New results history link: https://results.webkit.org/?suite=layout-tests&test=http%2Fwpt%2Fservice-workers%2Fupdate-service-worker.https.html

It appears that this is a rare flake, happening most often on iPadOS Debug.

[youenn fablet]

Pull request: https://github.com/WebKit/WebKit/pull/1647

[EWS]

Committed r295736 (251741@main): <https://commits.webkit.org/251741@main>

Reviewed commits have been landed. Closing PR #1647 and removing active labels.