[Webkit-unassigned] [Bug 173780] New: Layout Test imported/w3c/web-platform-tests/html/webappapis/timers/type-long-settimeout.html is flaky

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=173780

            Bug ID: 173780
           Summary: Layout Test
                    imported/w3c/web-platform-tests/html/webappapis/timers
                    /type-long-settimeout.html is flaky
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jlewis3 at apple.com

imported/w3c/web-platform-tests/html/webappapis/timers/type-long-settimeout.html is a flaky failure.

According to the Flakiness Dashboard, the test is failing intermittently on macOS Debug.
https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fwebappapis%2Ftimers%2Ftype-long-settimeout.html

The first failure on the dashboard was on 6/2/2017: https://build.webkit.org/results/Apple%20El%20Capitan%20Debug%20WK2%20(Tests)/r217720%20(1487)/results.html

current build:
https://build.webkit.org/results/Apple%20Sierra%20Debug%20WK2%20(Tests)/r218747%20(1716)/results.html
https://build.webkit.org/results/Apple%20Sierra%20Debug%20WK2%20(Tests)/r218747%20(1716)/results.html

Sierra Diff:
--- /Volumes/Data/slave/sierra-debug-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/html/webappapis/timers/type-long-settimeout-expected.txt
+++ /Volumes/Data/slave/sierra-debug-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/html/webappapis/timers/type-long-settimeout-actual.txt
@@ -1,3 +1,4 @@
+CONSOLE MESSAGE: line 2566: Error: assert_unreached: Reached unreachable code

 PASS Type long timeout for setTimeout 

El Capitan Diff:
--- /Volumes/Data/slave/elcapitan-debug-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/html/webappapis/timers/type-long-settimeout-expected.txt
+++ /Volumes/Data/slave/elcapitan-debug-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/html/webappapis/timers/type-long-settimeout-actual.txt
@@ -1,3 +1,4 @@
+CONSOLE MESSAGE: line 2534: Error: assert_unreached: Reached unreachable code

 PASS Type long timeout for setTimeout

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