Bug 176486 – Layout test imported/w3c/web-platform-tests/background-fetch/interfaces-worker.https.html is flaky.

• Component: New Bugs
• Status: RESOLVED CONFIGURATION CHANGED

[Matt Lewis]

imported/w3c/web-platform-tests/background-fetch/interfaces-worker.https.html is a flaky failure on El Capitan WK2 Debug according to the flakiness dashboard.

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

https://build.webkit.org/results/Apple%20El%20Capitan%20Debug%20WK2%20(Tests)/r221703%20(2933)/results.html
https://build.webkit.org/builders/Apple%20El%20Capitan%20Debug%20WK2%20(Tests)/builds/2933

diff:

--- /Volumes/Data/slave/elcapitan-debug-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/background-fetch/interfaces-worker.https-expected.txt
+++ /Volumes/Data/slave/elcapitan-debug-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/background-fetch/interfaces-worker.https-actual.txt
@@ -1,3 +1,4 @@
+CONSOLE MESSAGE: line 153: TypeError: undefined is not an object (evaluating 'registration.unregister')
 idlharness test
 
 This test validates the WebIDL included in the Background Fetch API (Service Workers).

[Alexey Proskuryakov]

Perhaps getting garbage collected inappropriately?

[Matt Lewis]

Marked as flaky:

https://trac.webkit.org/changeset/222224/webkit

[Joseph Pecoraro]

Closing. El Capitan expectations have been removed and this was an El Capitan specific failure / expectation.

[Radar WebKit Bug Importer]

<rdar://problem/43118317>