Bug 282373 – imported/w3c/web-platform-tests/scroll-animations/css/scroll-timeline-dynamic.tentative.html is flaky

• Status: RESOLVED
• Resolution: FIXED
• Component: Animations

[Fujii Hironori]

imported/w3c/web-platform-tests/scroll-animations/css/scroll-timeline-dynamic.tentative.html is flaky

285500@main unskipped it.

History:
  https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fscroll-animations%2Fcss%2Fscroll-timeline-dynamic.tentative.html

https://build.webkit.org/results/Apple-Sequoia-Release-WK2-Tests/285500@main%20(391)/imported/w3c/web-platform-tests/scroll-animations/css/scroll-timeline-dynamic.tentative-diff.txt

--- /Volumes/Data/worker/Apple-Sequoia-Release-WK2-Tests/build/layout-test-results/imported/w3c/web-platform-tests/scroll-animations/css/scroll-timeline-dynamic.tentative-expected.txt
+++ /Volumes/Data/worker/Apple-Sequoia-Release-WK2-Tests/build/layout-test-results/imported/w3c/web-platform-tests/scroll-animations/css/scroll-timeline-dynamic.tentative-actual.txt
@@ -1,10 +1,10 @@
 
-PASS Switching between document and scroll timelines [immediate]
-PASS Switching between document and scroll timelines [scroll]
+FAIL Switching between document and scroll timelines [immediate] assert_equals: expected "120px" but got "130px"
+FAIL Switching between document and scroll timelines [scroll] assert_equals: expected "120px" but got "130px"
 PASS Switching pending animation from document to scroll timelines [immediate]
 PASS Switching pending animation from document to scroll timelines [scroll]
-PASS Changing computed value of animation-timeline changes effective timeline [immediate]
-PASS Changing computed value of animation-timeline changes effective timeline [scroll]
+FAIL Changing computed value of animation-timeline changes effective timeline [immediate] assert_equals: expected "120px" but got "130px"
+FAIL Changing computed value of animation-timeline changes effective timeline [scroll] assert_equals: expected "120px" but got "130px"
 FAIL Changing to/from animation-timeline:none [immediate] assert_equals: expected "0px" but got "100px"
 FAIL Changing to/from animation-timeline:none [scroll] assert_equals: expected "0px" but got "100px"
 FAIL Reverse animation direction [immediate] assert_equals: expected "0px" but got "190px"

[Fujii Hironori]

https://wpt.fyi/results/scroll-animations/css/scroll-timeline-dynamic.tentative.html?label=experimental&label=master&aligned
https://wpt.live/scroll-animations/css/scroll-timeline-dynamic.tentative.html

[Fujii Hironori]

Pull request: https://github.com/WebKit/WebKit/pull/36012

[EWS]

Test gardening commit 285973@main (5f29ae41f5f7): <https://commits.webkit.org/285973@main>

Reviewed commits have been landed. Closing PR #36012 and removing active labels.

[Radar WebKit Bug Importer]

<rdar://problem/139406752>

[Antoine Quint]

When I run this test in isolation using `--debug --iterations 100 --force --exit-after-n-failures 1` I get it failing in various ways, so it's not about a given subtest, but probably the way these tests are expected to work.

[Antoine Quint]

This appears to be no longer be flaky as of 287181@main.

[Antoine Quint]

Pull request: https://github.com/WebKit/WebKit/pull/37628

[EWS]

Test gardening commit 287542@main (3bcb80915da1): <https://commits.webkit.org/287542@main>

Reviewed commits have been landed. Closing PR #37628 and removing active labels.