Bug 207515 – [ Mac wk2 ] http/wpt/service-workers/service-worker-spinning-fetch.https.html is flaky failing.

• Component: Service Workers
• Status: RESOLVED FIXED

[Jason Lawrence]

http/wpt/service-workers/service-worker-spinning-fetch.https.html

Description:
This test is flaky failing on Mac wk2. It is flaky failing in all visible history.

History:
https://results.webkit.org/?limit=50000&platform=ios&suite=layout-tests&test=http%2Fwpt%2Fservice-workers%2Fservice-worker-spinning-fetch.https.html


Diff:
--- /Volumes/Data/slave/ios-simulator-13-release-tests-wk2/build/layout-test-results/http/wpt/service-workers/service-worker-spinning-fetch.https-expected.txt
+++ /Volumes/Data/slave/ios-simulator-13-release-tests-wk2/build/layout-test-results/http/wpt/service-workers/service-worker-spinning-fetch.https-actual.txt
@@ -1,5 +1,5 @@
 
 
 PASS Spin in fetch 
-PASS Spin after fetch 
+FAIL Spin after fetch promise_test: Unhandled rejection with value: "service worker is still running"

[Radar WebKit Bug Importer]

<rdar://problem/59329307>

[Jason Lawrence]

I have marked this test as failing while this issue is investigated.
https://trac.webkit.org/changeset/256226/webkit

[Alexey Proskuryakov]

The test was added a month ago in r254341.

It is also asserting:

ASSERTION FAILED: m_messageEventCount
./workers/service/context/ServiceWorkerThread.cpp(296) : void WebCore::ServiceWorkerThread::finishedFiringMessageEvent()
1   0x1b7a572b9 WTFCrash
2   0x19c106c2b WTFCrashWithInfo(int, char const*, char const*, int)
3   0x1a08e3a6c WebCore::ServiceWorkerThread::finishedFiringMessageEvent()
4   0x1a0915230 WebCore::ServiceWorkerThread::queueTaskToPostMessage(WebCore::MessageWithMessagePorts&&, WTF::Variant<WebCore::ServiceWorkerData, WebCore::ServiceWorkerClientData>&&)::$_22::operator()()::'lambda'()::operator()() const
5   0x1a09151b9 WTF::Detail::CallableWrapper<WebCore::ServiceWorkerThread::queueTaskToPostMessage(WebCore::MessageWithMessagePorts&&, WTF::Variant<WebCore::ServiceWorkerData, WebCore::ServiceWorkerClientData>&&)::$_22::operator()()::'lambda'(), void>::call()
6   0x1b7a818ea WTF::Function<void ()>::operator()() const
7   0x1b7ac064b WTF::dispatchFunctionsFromMainThread()
8   0x1b7ac37e5 -[JSWTFMainThreadCaller call]

[Jason Lawrence]

I called this test Mac wk2, it is flaky failing on iOS.
I have marked it appropriately here: https://trac.webkit.org/changeset/256379/webkit

[Jason Lawrence]

I am able to reproduce this issue using r256431 using the command below.
run-webkit-tests http/wpt/service-workers/service-worker-spinning-fetch.https.html --iterations 5000 --exit-after-n-failures 5 -f --force --ios-simulator --debug

[747/5000] http/wpt/service-workers/service-worker-spinning-fetch.https.html failed unexpectedly (ServiceWorkerProcess crashed [pid=51990])
[804/5000] http/wpt/service-workers/service-worker-spinning-fetch.https.html failed unexpectedly (ServiceWorkerProcess crashed [pid=60097])

[youenn fablet]

This bug is titled for iOS but the expectation and description is about Mac-wk2.
Let's keep this one for Mac-wk2 and I'll create a new one for iOS.

[youenn fablet]

Filed https://bugs.webkit.org/show_bug.cgi?id=211951 for iOS.

[youenn fablet]

Created attachment 399473 [details]
Patch

[youenn fablet]

ping review

[EWS]

Committed r262409: <https://trac.webkit.org/changeset/262409>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 399473 [details].