Bug 186425 – REGRESSION (r232376): Layout Test inspector/console/webcore-logging.html is a flaky failure

• Status: RESOLVED
• Resolution: CONFIGURATION CHANGED
• Component: Web Inspector

[Ryan Haddad]

The following layout test is flaky on macOS Debug WK2

inspector/console/webcore-logging.html

Probable cause:

Unknown, this test started being flaky around https://trac.webkit.org/changeset/232376/webkit

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=inspector%2Fconsole%2Fwebcore-logging.html

--- /Volumes/Data/slave/highsierra-debug-tests-wk2/build/layout-test-results/inspector/console/webcore-logging-expected.txt
+++ /Volumes/Data/slave/highsierra-debug-tests-wk2/build/layout-test-results/inspector/console/webcore-logging-actual.txt
@@ -33,6 +33,7 @@
 -- Running test case: Console.Logging.LogAsJSONWithoutRepeat
 PASS: Media logging disabled.
 PASS: Verbose media logging has been enabled.
+ERROR: TypeError: undefined is not an object (evaluating 'listener.call')
 PASS: Message logged as JSON.
 PASS: ConsoleMessage repeatCount is 1.
 PASS: Message logged as JSON.

[Ryan Haddad]

We need to find the regression point for this one.

[Ryan Haddad]

David determined that this regressed with https://trac.webkit.org/changeset/232376

[Radar WebKit Bug Importer]

<rdar://problem/40943111>

[Dawei Fenton (:realdawei)]

I've been able to reproduce the failure on a local build of r232376 using the following command:

run-webkit-tests inspector/console/webcore-logging.html --debug --iter 50 -f -g --no-retry

The test passes reliably on the previous build (r232375)

[Ryan Haddad]

Marked test as flaky in https://trac.webkit.org/r232777

[Ryan Haddad]

It doesn't look like this has happened recently on the bots and I can not reproduce with Dawei's steps above.

[Ryan Haddad]

Removed flaky expectation in https://trac.webkit.org/r238299

[Joseph Pecoraro]

Yay!