Bug 215506 – [ macOS ] imported/w3c/web-platform-tests/html/webappapis/scripting/processing-model-2/unhandled-promise-rejections/promise-rejection-events-onerror.html is a flaky failure

• Component: New Bugs
• Status: NEW

[Hector Lopez]

imported/w3c/web-platform-tests/html/webappapis/scripting/processing-model-2/unhandled-promise-rejections/promise-rejection-events-onerror.html

Test is a flaky failure macOS according to history. The first occurrence of a failure is at r264168. Was also recorded as a flaky failure on iOS https://trac.webkit.org/changeset/249912/webkit

History:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fwebappapis%2Fscripting%2Fprocessing-model-2%2Funhandled-promise-rejections%2Fpromise-rejection-events-onerror.html&platform=mac&limit=50000

Diff:
--- /Volumes/Data/slave/catalina-release-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/html/webappapis/scripting/processing-model-2/unhandled-promise-rejections/promise-rejection-events-onerror-expected.txt
+++ /Volumes/Data/slave/catalina-release-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/html/webappapis/scripting/processing-model-2/unhandled-promise-rejections/promise-rejection-events-onerror-actual.txt
@@ -1,5 +1,6 @@
 CONSOLE MESSAGE: Unhandled Promise Rejection: Error: e
-CONSOLE MESSAGE: Error: e2
 
-PASS Throwing inside an unhandledrejection handler invokes the error handler. 
+Harness Error (TIMEOUT), message = null
 
+TIMEOUT Throwing inside an unhandledrejection handler invokes the error handler. Test timed out
+

[Radar WebKit Bug Importer]

<rdar://problem/67077088>

[Hector Lopez]

Test expectation while investigated:

https://trac.webkit.org/changeset/265673/webkit