208384 2020-02-28 11:26:10 -0800 [ Mac wk1 ] imported/w3c/web-platform-tests/requestidlecallback/callback-timeout-when-busy.html is flakey failing. 2026-01-05 10:19:27 -0800 1 1 1 Unclassified WebKit Tools / Tests WebKit Nightly Build Mac macOS 10.15 RESOLVED WONTFIX InRadar P2 Normal --- 1 Lawrence.j webkit-unassigned webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 1624041 0 Lawrence.j 2020-02-28 11:26:10 -0800 imported/w3c/web-platform-tests/requestidlecallback/callback-timeout-when-busy.html Description: This test is flaky failing on Mac wk1. It appears to flaky fail throughout the visible history. History: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Frequestidlecallback%2Fcallback-timeout-when-busy.html&flavor=wk1&platform=mac&limit=50000 Diff: --- /Volumes/Data/slave/mojave-debug-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/requestidlecallback/callback-timeout-when-busy-expected.txt +++ /Volumes/Data/slave/mojave-debug-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/requestidlecallback/callback-timeout-when-busy-actual.txt @@ -1,6 +1,6 @@ Test of requestIdleCallback timeout behavior -FAIL requestIdleCallback not scheduled when event loop is busy. assert_false: IdleDeadline.didTimeout MUST be false if requestIdleCallback wasn't scheduled due to a timeout expected false got true +FAIL requestIdleCallback not scheduled when event loop is busy. assert_equals: Busy event loop should be finished by the time we get scheduled expected 0 but got 7 FAIL requestIdleCallback scheduled with timeout when event loop is busy. assert_true: IdleDeadline.timeRemaining MUST be equal to zero if requestIdleCallback was scheduled due to a timeout expected true got false 1624044 1 webkit-bug-importer 2020-02-28 11:26:30 -0800 <rdar://problem/59895884> 1624047 2 Lawrence.j 2020-02-28 11:30:08 -0800 I have marked this test as failing while the issue is investigated. https://trac.webkit.org/changeset/257646/webkit 1624819 3 Lawrence.j 2020-03-02 16:25:07 -0800 I can reproduce this issue with r257738 by running the command below. run-webkit-tests --iterations 1000 --exit-after-n-failures 4 --force -1 imported/w3c/web-platform-tests/requestidlecallback/callback-timeout-when-busy.html --no-retry [1/1000] imported/w3c/web-platform-tests/requestidlecallback/callback-timeout-when-busy.html failed unexpectedly (text diff) 999 tests ran as expected, 1 didn't: 2169357 4 jbedard 2026-01-05 10:19:27 -0800 Closing old WebKitLegacy bugs as we cut-back WebKitLegacy testing. See https://bugs.webkit.org/show_bug.cgi?id=304436.