Bug 180260 – Layout Test http/wpt/resource-timing/rt-resources-per-worker.html is flaky

• Status: REOPENED
• Component: New Bugs

[Matt Lewis]

http/wpt/resource-timing/rt-resources-per-worker.html is flaky on High Sierra WK1 and High Sierra WK2 Release according to the flakiness dashboard currently:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=http%2Fwpt%2Fresource-timing%2Frt-resources-per-worker.html

sample build results:

https://build.webkit.org/results/Apple%20High%20Sierra%20Release%20WK1%20(Tests)/r225393%20(1706)/results.html
https://build.webkit.org/builders/Apple%20High%20Sierra%20Release%20WK1%20(Tests)/builds/1706

first failure:

https://build.webkit.org/builders/Apple%20High%20Sierra%20Release%20WK1%20(Tests)/builds/1328
https://build.webkit.org/results/Apple%20High%20Sierra%20Release%20WK1%20(Tests)/r224866%20(1328)/results.html

diff:

--- /Volumes/Data/slave/highsierra-release-tests-wk1/build/layout-test-results/http/wpt/resource-timing/rt-resources-per-worker-expected.txt
+++ /Volumes/Data/slave/highsierra-release-tests-wk1/build/layout-test-results/http/wpt/resource-timing/rt-resources-per-worker-actual.txt
@@ -1,8 +1,6 @@
 Resource Timing: Entries per Worker
 
 
-PASS Workers have PerformanceObserver and PerformanceResourceTiming 
-PASS window resources differ from other contexts 
-PASS worker1 resources differ from other contexts 
-PASS worker2 resources differ from other contexts 
+Harness Error (TIMEOUT), message = null
 
+

[Ryan Haddad]

This test is still terribly flaky on the bots.

[Matt Lewis]

Marked as flaky on High Sierra:
https://trac.webkit.org/changeset/227088/webkit

[Ryan Haddad]

Marked as flaky on iOS in https://trac.webkit.org/changeset/231119/webkit

[Shawn Roberts]

Created attachment 360751 [details]
Patch

[EWS]

Comment on attachment 360751 [details]
Patch

Rejecting attachment 360751 [details] from review queue.

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[WebKit Commit Bot]

Comment on attachment 360751 [details]
Patch

Clearing flags on attachment: 360751

Committed r243801: <https://trac.webkit.org/changeset/243801>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.

[Shawn Roberts]

Reopening bug as tests are still flaky. Just updated expectations for all of Mac as it's affecting Mojave now as well.

[Radar WebKit Bug Importer]

<rdar://problem/49560213>