Bug 305503 – [WPE][GTK] Layout test imported/w3c/web-platform-tests/service-workers/service-worker/fetch-request-redirect.https.html is flaky failure

• Component: New Bugs
• Status: NEW

[Carlos Alberto Lopez Perez]

Layout test imported/w3c/web-platform-tests/service-workers/service-worker/fetch-request-redirect.https.html is a flaky failure in the GTK and WPE ports.

it has been like that since almost one year ago. It started to be a flaky failure around 289998@main

This is the diff when it fails:

--- /sdk/webkit/layout-test-results/imported/w3c/web-platform-tests/service-workers/service-worker/fetch-request-redirect.https-expected.txt
+++ /sdk/webkit/layout-test-results/imported/w3c/web-platform-tests/service-workers/service-worker/fetch-request-redirect.https-actual.txt
@@ -14,7 +14,7 @@
 PASS Loading redirected image with Request.redirect=manual should fail. - default
 PASS Normal audio resource should be loaded. - default
 PASS Redirected audio resource should be loaded. - default
-PASS Loading redirected audio with Request.redirect=follow should succeed. - default
+FAIL Loading redirected audio with Request.redirect=follow should succeed. - default undefined
 PASS Loading redirected audio with Request.redirect=error should fail. - default
 PASS Loading redirected audio with Request.redirect=manual should fail. - default
 PASS Normal iframe loading should succeed. - default


Flaky report for GTK and WPE:


The bot gtk-release completed 924 runs on the interval [301580@main-305580@main]
Frecuency of results for test: imported/w3c/web-platform-tests/service-workers/service-worker/fetch-request-redirect.https.html
  614 times [66.5%]      ->  TEXT
  101 times [10.9%]      ->  TEXT PASS
  209 times [22.6%]      ->  NOERROR

Of those 924 runs it didn't match the expectation 715 times [77.4%]
Details of the type and frequency of unmatched expectations:
  614 times [66.5%]      ->  TEXT (Expected: PASS)
  101 times [10.9%]      ->  TEXT PASS (Expected: PASS)

Flakiness factor: 49.1%
    - This test was flaky on 49.1% of the 924 runs analyzed, either giving different
      results within a single run, or a different result than in the previous run.



The bot wpe-release completed 940 runs on the interval [301591@main-305586@main]
Frecuency of results for test: imported/w3c/web-platform-tests/service-workers/service-worker/fetch-request-redirect.https.html
  169 times [18.0%]      ->  NOERROR
  674 times [71.7%]      ->  TEXT
  97 times [10.3%]       ->  TEXT PASS

Of those 940 runs it didn't match the expectation 771 times [82.0%]
Details of the type and frequency of unmatched expectations:
  674 times [71.7%]      ->  TEXT (Expected: PASS)
  97 times [10.3%]       ->  TEXT PASS (Expected: PASS)

Flakiness factor: 43.0%
    - This test was flaky on 43.0% of the 940 runs analyzed, either giving different
      results within a single run, or a different result than in the previous run.

[Carlos Alberto Lopez Perez]

Expectations updated at 305610@main