[Webkit-unassigned] [Bug 200794] New: Layout Test imported/w3c/web-platform-tests/service-workers/service-worker/ready.https.html is flaky

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=200794

            Bug ID: 200794
           Summary: Layout Test
                    imported/w3c/web-platform-tests/service-workers/servic
                    e-worker/ready.https.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: repstein at apple.com

The following layout test is flaky on iOS

imported/w3c/web-platform-tests/service-workers/service-worker/ready.https.html

Steps to Reproduce:

run-webkit-tests --ios-simulator --no-retry --no-sample-on-timeout imported/w3c/web-platform-tests/service-workers/service-worker/ready.https.html --iter 10

This test has been known to be flaky for a long time, tracked in webkit.org/b/181837; however, the test is now failing in an additional way. It appears that the test harness is timing out (see Diff below).

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=imported%2Fw3c%2Fweb-platform-tests%2Fservice-workers%2Fservice-worker%2Fready.https.html

Diff:

--- /Volumes/Data/slave/ios-simulator-12-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/service-workers/service-worker/ready.https-expected.txt
+++ /Volumes/Data/slave/ios-simulator-12-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/service-workers/service-worker/ready.https-actual.txt
@@ -1,5 +1,5 @@
-CONSOLE MESSAGE: Unhandled Promise Rejection: InvalidStateError: The object is in an invalid state.
-CONSOLE MESSAGE: Unhandled Promise Rejection: InvalidStateError: The object is in an invalid state.
+
+Harness Error (TIMEOUT), message = null

 PASS ready returns the same Promise object 
 PASS ready returns a Promise object in the context of the related document 
@@ -10,5 +10,5 @@
 PASS ready after a longer matched registration registered 
 PASS access ready after it has been resolved 
 FAIL resolve ready after unregistering and reregistering assert_not_equals: Registrations should be different got disallowed value object "[object ServiceWorkerRegistration]"
-FAIL resolve ready before unregistering and reregistering assert_equals: Resolves with the first registration expected "https://localhost:9443/service-workers/service-worker/resources/empty-worker.js" but got "https://localhost:9443/service-workers/service-worker/resources/empty-worker.js?2"
+TIMEOUT resolve ready before unregistering and reregistering Test timed out

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