[Webkit-unassigned] [Bug 187566] New: Layout Test webanimations/leak-document-with-web-animation.html is Flaky

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=187566

            Bug ID: 187566
           Summary: Layout Test
                    webanimations/leak-document-with-web-animation.html is
                    Flaky
           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: tsavell at apple.com
                CC: lforschler at apple.com

The following layout test is Flaky on MacOS WK1

webanimations/leak-document-with-web-animation.html

Probable cause:

test has been a highly intermittent failure sense being introduced in r233583 <https://trac.webkit.org/changeset/233583/webkit>

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=webanimations%2Fleak-document-with-web-animation.html

output of test:
--- /Volumes/Data/slave/highsierra-debug-tests-wk1/build/layout-test-results/webanimations/leak-document-with-web-animation-expected.txt
+++ /Volumes/Data/slave/highsierra-debug-tests-wk1/build/layout-test-results/webanimations/leak-document-with-web-animation-actual.txt
@@ -5,7 +5,7 @@

 The iframe has finished loading.
 The iframe has been destroyed.
-PASS internals.numberOfLiveDocuments() is numberOfLiveDocumentsAfterIframeLoaded - 1
+FAIL internals.numberOfLiveDocuments() should be 44. Was 42.

 PASS successfullyParsed is true

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