[ Mac wk1 ] storage/indexeddb/modern/blob-cursor.html is flaky timing out

[Jacob Uphoff]

storage/indexeddb/modern/blob-cursor.html is flaky timing out and started around commit 252956 but it is flaky so I am unsure if this was the commit that caused the issue.

I did not try to reproduce the timeout, this is happening on Catalina and Mojave with wk1

History:
https://results.webkit.org/?suite=layout-tests&test=storage%2Findexeddb%2Fmodern%2Fblob-cursor.html

Diff:

--- /Volumes/Data/slave/catalina-debug-tests-wk1/build/layout-test-results/storage/indexeddb/modern/blob-cursor-expected.txt
+++ /Volumes/Data/slave/catalina-debug-tests-wk1/build/layout-test-results/storage/indexeddb/modern/blob-cursor-actual.txt
@@ -1,13 +1,2 @@
-Now let's retrieve the blobs using a cursor.
-Got item from cursor
-Got item from cursor
-Finished cursor
-blobResults.length is 2
-  Result 0 is [object Blob]
-  Result 1 is [object Blob]
-Image 0 loaded successfully
-Image 1 loaded successfully
-PASS successfullyParsed is true
-
-TEST COMPLETE
-
+FAIL: Timed out waiting for notifyDone to be called
+Click to start test in new window

[Radar WebKit Bug Importer]

<rdar://problem/58838711>

[Truitt Savell]

I tried to reproduce this by running in iteration but was unsuccessful.

[Alexey Proskuryakov]

I'm not confident that this is a regression. Increasing the history limit, I see much older timeouts too.

This test has unusually inconsistent run time. I see everything including 1 second, 10 seconds, 25 seconds, timeout... Not sure what about IndexedDB causes such inconsistency.

[Jacob Uphoff]

Created attachment 389016 [details]
Update Test Expectations

[Truitt Savell]

Comment on attachment 389016 [details]
Update Test Expectations

Clearing flags on attachment: 389016

Committed r255247: <https://trac.webkit.org/changeset/255247>

[Sihui Liu]

This should be fixed after https://bugs.webkit.org/show_bug.cgi?id=206971.