[Webkit-unassigned] [Bug 217938] New: REGRESSION (268605?): [ Mojave+ wk2 ] 4 wpt/service-workers tests are flaky failures

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=217938

            Bug ID: 217938
           Summary: REGRESSION (268605?): [ Mojave+ wk2 ] 4
                    wpt/service-workers tests are flaky failures
           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: rackler at apple.com

Description:
http/wpt/service-workers/fetchEvent.https.html
http/wpt/service-workers/header-filtering.https.html
http/wpt/service-workers/mac/throttleable.https.html
http/wpt/service-workers/online.https.html

The most recent failure that I see this on the dashboard, after a series of consistent passing, was 10/16/20 at 268605, and introduces a new daemon to handle all WebAuthn requests, which could have raised the flakiness. The change was introduced here https://trac.webkit.org/changeset/268605/webkit.

I have made multiple reproductions attempts, but so far have been unable to reproduce the issue.

History:
https://results.webkit.org/?suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&test=http%2Fwpt%2Fservice-workers%2FfetchEvent.https.html&test=http%2Fwpt%2Fservice-workers%2Fheader-filtering.https.html&test=http%2Fwpt%2Fservice-workers%2Fmac%2Fthrottleable.https.html&test=http%2Fwpt%2Fservice-workers%2Fonline.https.html&platform=mac&limit=50000

Diff Log:
http/wpt/service-workers/header-filtering.https.html

--- /Volumes/Data/slave/catalina-debug-tests-wk2/build/layout-test-results/http/wpt/service-workers/header-filtering.https-expected.txt
+++ /Volumes/Data/slave/catalina-debug-tests-wk2/build/layout-test-results/http/wpt/service-workers/header-filtering.https-actual.txt
@@ -1,12 +1,13 @@
+

 PASS Prepare tests: setup worker and register the client
 PASS Prepare tests: Add a frame controlled by service worker
-PASS Test same-origin fetch
-PASS Test cors cross-origin fetch
-PASS Test no-cors cross-origin fetch
-PASS Test same-origin script load
-PASS Test no-cors script load
-PASS Test cors script load
-PASS Test HTML load
+FAIL Test same-origin fetch assert_array_equals: value is "Test requires internals API to get all response headers", expected array
+FAIL Test cors cross-origin fetch assert_array_equals: value is "Test requires internals API to get all response headers", expected array
+FAIL Test no-cors cross-origin fetch assert_array_equals: value is "Test requires internals API to get all response headers", expected array
+FAIL Test same-origin script load assert_array_equals: value is "Test requires internals API to get all response headers", expected array
+FAIL Test no-cors script load assert_array_equals: value is "Test requires internals API to get all response headers", expected array
+FAIL Test cors script load assert_array_equals: value is "Test requires internals API to get all response headers", expected array
+FAIL Test HTML load assert_array_equals: value is "Test requires internals API to get all response headers", expected array
 PASS After tests clean-up

http/wpt/service-workers/online.https.html

--- /Volumes/Data/slave/catalina-debug-tests-wk2/build/layout-test-results/http/wpt/service-workers/online.https-expected.txt
+++ /Volumes/Data/slave/catalina-debug-tests-wk2/build/layout-test-results/http/wpt/service-workers/online.https-actual.txt
@@ -1,4 +1,4 @@

 PASS Setup worker
-PASS Test service worker online/offline
+FAIL Test service worker online/offline assert_equals: expected "PASS" but got "FAIL: test require internals"


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

--- /Volumes/Data/slave/catalina-debug-tests-wk2/build/layout-test-results/http/wpt/service-workers/service-worker-spinning-install.https-expected.txt
+++ /Volumes/Data/slave/catalina-debug-tests-wk2/build/layout-test-results/http/wpt/service-workers/service-worker-spinning-install.https-actual.txt
@@ -1,5 +1,7 @@

-PASS Spin at running
-PASS Spin in install
-PASS Spin after install
+Harness Error (TIMEOUT), message = null

+TIMEOUT Spin at running  Test timed out
+NOTRUN Spin in install
+NOTRUN Spin after install
+

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

--- /Volumes/Data/slave/catalina-debug-tests-wk2/build/layout-test-results/http/wpt/service-workers/service-worker-spinning-message.https-expected.txt
+++ /Volumes/Data/slave/catalina-debug-tests-wk2/build/layout-test-results/http/wpt/service-workers/service-worker-spinning-message.https-actual.txt
@@ -1,4 +1,6 @@

-PASS Spin in message
-PASS Spin after message
+Harness Error (TIMEOUT), message = null

+TIMEOUT Spin in message Test timed out
+NOTRUN Spin after message
+

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