[Webkit-unassigned] [Bug 198573] New: REGRESSION (r243270) [ iOS Sim Release ] Layout Test imported/w3c/web-platform-tests/IndexedDB/keypath-special-identifiers.htm is a flaky failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=198573

            Bug ID: 198573
           Summary: REGRESSION (r243270) [ iOS Sim Release ] Layout Test
                    imported/w3c/web-platform-tests/IndexedDB/keypath-spec
                    ial-identifiers.htm is a flaky failure
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sroberts at apple.com

The following layout test is flaky on iOS Simulator Release

imported/w3c/web-platform-tests/IndexedDB/keypath-special-identifiers.htm

Probable cause:

It appears that after changes in r243270 the above test started to fail on iOS Simulator Release only.

Was able to reproduce locally with:'

run-webkit-tests imported/w3c/web-platform-tests/IndexedDB/keypath-special-identifiers.htm --iter 100 -f --exit-after-n-failures=1 --ios-simulator

Fails locally with revisions up until r243270 and passes in older revisions. It's hitting a harness timeout.

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=imported%2Fw3c%2Fweb-platform-tests%2FIndexedDB%2Fkeypath-special-identifiers.htm

Diff:

--- /Users/shawnroberts/Desktop/builds/ios243270/layout-test-results/imported/w3c/web-platform-tests/IndexedDB/keypath-special-identifiers-expected.txt
+++ /Users/shawnroberts/Desktop/builds/ios243270/layout-test-results/imported/w3c/web-platform-tests/IndexedDB/keypath-special-identifiers-actual.txt
@@ -1,8 +1,10 @@
+
+Harness Error (TIMEOUT), message = null

 PASS Type: String, identifier: length 
 PASS Type: Array, identifier: length 
-PASS Type: Blob, identifier: size 
-PASS Type: Blob, identifier: type 
-PASS Type: File, identifier: name 
-PASS Type: File, identifier: lastModified 
+TIMEOUT Type: Blob, identifier: size Test timed out
+TIMEOUT Type: Blob, identifier: type Test timed out
+TIMEOUT Type: File, identifier: name Test timed out
+TIMEOUT Type: File, identifier: lastModified Test timed out

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