Bug 183714 – [iOS debug] Layout Test http/tests/storageAccess/grant-storage-access-under-opener.html is a flaky timeout

• Status: RESOLVED
• Resolution: FIXED
• Component: New Bugs

[Ryan Haddad]

The following layout test is a flaky timeout on iOS Debug bots

http/tests/storageAccess/grant-storage-access-under-opener.html

Probable cause:

This test was added with https://trac.webkit.org/changeset/229597/webkit

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=http%2Ftests%2FstorageAccess%2Fgrant-storage-access-under-opener.html

[Ryan Haddad]

Skipped test on iOS debug in https://trac.webkit.org/changeset/229760/webkit

[Radar WebKit Bug Importer]

<rdar://problem/38666060>

[John Wilander]

Created attachment 341612 [details]
Patch for landing

[John Wilander]

The patch just adds additional logging and turns the test back on for iOS Debug. With the new console log entries we might be able to figure out why the test is timing out.

[WebKit Commit Bot]

Comment on attachment 341612 [details]
Patch for landing

Clearing flags on attachment: 341612

Committed r232317: <https://trac.webkit.org/changeset/232317>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.

[Ryan Haddad]

https://build.webkit.org/results/Apple%20iOS%2011%20Simulator%20Debug%20WK2%20(Tests)/r232798%20(4808)/results.html

--- /Volumes/Data/slave/ios-simulator-11-debug-tests-wk2/build/layout-test-results/http/tests/storageAccess/grant-storage-access-under-opener-expected.txt
+++ /Volumes/Data/slave/ios-simulator-11-debug-tests-wk2/build/layout-test-results/http/tests/storageAccess/grant-storage-access-under-opener-actual.txt
@@ -1,22 +1,5 @@
 CONSOLE MESSAGE: line 54: Running test.
 CONSOLE MESSAGE: line 67: About to call testRunner.statisticsUpdateCookiePartitioning().
-CONSOLE MESSAGE: line 69: About to open the new window.
-CONSOLE MESSAGE: line 43: About to open the third party iframe.
-Tests that a cross-origin window from a prevalent domain with non-recent user interaction gets immediate storage access under its opener.
+#PID UNRESPONSIVE - com.apple.WebKit.WebContent.Development (pid 63652)
+FAIL: Timed out waiting for notifyDone to be called
 
-On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
-
-
-PASS Cookie created.
-PASS successfullyParsed is true
-
-TEST COMPLETE
-
-
---------
-Frame: '<!--frame1-->'
---------
-Should receive first-party cookie.
-Received cookie named 'firstPartyCookie'.
-Did not receive cookie named ''.
-Client-side document.cookie: firstPartyCookie=value

[John Wilander]

Thanks!

It's testRunner.statisticsUpdateCookiePartitioning() that gets tripped up somehow. Will investigate.

[John Wilander]

I'll make a related change in https://bugs.webkit.org/show_bug.cgi?id=186777.

[Ryan Haddad]

It looks like this is still a flaky timeout (with no output) on iOS debug bots.

[John Wilander]

No output is seriously messed up. :(

[John Wilander]

Further work to address this is tracked in https://bugs.webkit.org/show_bug.cgi?id=186903.

[Ryan Haddad]

This test has been consistently passing on iOS bots since 6/25, so this appears to be resolved.