Bug 196944 – [iOS Sim] REGRESSION (r244182) Layout Test imported/w3c/web-platform-tests/hr-time/test_cross_frame_start.html is a flaky failure

• Status: RESOLVED
• Resolution: CONFIGURATION CHANGED
• Component: Tools / Tests

[Shawn Roberts]

The following layout test is flaky on iOS Simulator Release

imported/w3c/web-platform-tests/hr-time/test_cross_frame_start.html

Probable cause:

After changes in https://trac.webkit.org/changeset/244182/webkit the test started showing on the dashboard and is reproducible locally. tests ran with revision before this result in passing results. 

reproduced with:

run-webkit-tests imported/w3c/web-platform-tests/hr-time/test_cross_frame_start.html --iterations 50 -f --ios-simulator

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=imported%2Fw3c%2Fweb-platform-tests%2Fhr-time%2Ftest_cross_frame_start.html

--- /Volumes/Data/slave/ios-simulator-12-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/hr-time/test_cross_frame_start-expected.txt
+++ /Volumes/Data/slave/ios-simulator-12-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/hr-time/test_cross_frame_start-actual.txt
@@ -6,6 +6,6 @@
 PASS Setup the frame 
 PASS parent performance.now() > 0 
 PASS child performance.now() > 0 
-PASS Child created at least 1 second after parent 
-PASS Child and parent time bases are correct 
+FAIL Child created at least 1 second after parent null is not an object (evaluating 'childWindow.performance.timing.navigationStart')
+FAIL Child and parent time bases are correct null is not an object (evaluating 'childWindow.performance.timing.loadEventStart')

[Radar WebKit Bug Importer]

<rdar://problem/49920460>

[Shawn Roberts]

Marked flaky in https://trac.webkit.org/changeset/244301/webkit while waiting for a fix.

[Said Abou-Hallawa]

Flaky expectation for this test was removed in:

Committed r258895: <https://trac.webkit.org/changeset/258895>.