[Webkit-unassigned] [Bug 181832] New: Layout Test inspector/unit-tests/throttle.html is a flaky failure

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Thu Jan 18 20:40:37 PST 2018


https://bugs.webkit.org/show_bug.cgi?id=181832

            Bug ID: 181832
           Summary: Layout Test inspector/unit-tests/throttle.html is a
                    flaky failure
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ryanhaddad at apple.com
                CC: inspector-bugzilla-changes at group.apple.com

The following layout test is flaky on macOS and GTK

inspector/unit-tests/throttle.html

Probable cause:

This test has been extremely flaky since it was added in https://trac.webkit.org/changeset/226755/webkit

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=inspector%2Funit-tests%2Fthrottle.html

--- /Volumes/Data/slave/highsierra-debug-tests-wk2/build/layout-test-results/inspector/unit-tests/throttle-expected.txt
+++ /Volumes/Data/slave/highsierra-debug-tests-wk2/build/layout-test-results/inspector/unit-tests/throttle-actual.txt
@@ -4,15 +4,7 @@
 == Running test suite: Throttle
 -- Running test case: Basic throttle
 Call throttled function every 1 ms for 110 ms.
-PASS: All calls delayed at least 50 ms.
+FAIL: Delay should be at least 50 ms. Was 49 ms.
+!! EXCEPTION: undefined
+Stack Trace: #0: (anonymous) ((unknown))

--- Running test case: Throttle proxy uniqueness
-PASS: Each call to throttle should return a new proxy.
-
--- Running test case: Throttled function arguments
-PASS: Trailing call invoked with most recent arguments.
-
--- Running test case: Cancel throttle
-Canceled throttled function.
-PASS: Throttled function canceled.
-

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