Bug 231600 - REGRESSION: (r283871) [ macOS wk2 Release ] 2 css/cssom-view/scroll-behavior-main-frame tests are failing
Summary: REGRESSION: (r283871) [ macOS wk2 Release ] 2 css/cssom-view/scroll-behavior-...
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: CSS (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2021-10-12 11:40 PDT by Eric Hutchison
Modified: 2021-10-12 12:59 PDT (History)
5 users (show)

See Also:


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Description Eric Hutchison 2021-10-12 11:40:24 PDT
imported/w3c/web-platform-tests/css/cssom-view/scroll-behavior-main-frame-window.html
imported/w3c/web-platform-tests/css/cssom-view/scroll-behavior-main-frame-root.html

are constantly failing on Catalina, BigSur wk2 Release since r283871 (https://trac.webkit.org/changeset/283871/webkit).

History: https://results.webkit.org/?platform=ios&platform=mac&suite=layout-tests&suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcssom-view%2Fscroll-behavior-main-frame-root.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcssom-view%2Fscroll-behavior-main-frame-window.html

Build: https://build.webkit.org/#/builders/70/builds/5814

Results: https://build.webkit.org/results/Apple-BigSur-Release-WK2-Tests/r283982%20(5814)/results.html

Diff: 

--- /Volumes/Data/worker/bigsur-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/css/cssom-view/scroll-behavior-main-frame-root-expected.txt
+++ /Volumes/Data/worker/bigsur-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/css/cssom-view/scroll-behavior-main-frame-root-actual.txt
@@ -36,6 +36,6 @@
 PASS Set scrollLeft to frame with smooth scroll-behavior
 PASS Set scrollTop to frame with auto scroll-behavior
 PASS Set scrollTop to frame with smooth scroll-behavior
-PASS Aborting an ongoing smooth scrolling on the main frame with another smooth scrolling
-PASS Aborting an ongoing smooth scrolling on the main frame with an instant scrolling
+FAIL Aborting an ongoing smooth scrolling on the main frame with another smooth scrolling assert_equals: Final value of scrollLeft expected 1215 but got 2430
+FAIL Aborting an ongoing smooth scrolling on the main frame with an instant scrolling assert_equals: Final value of scrollLeft expected 0 but got 2430
 
--- /Volumes/Data/worker/bigsur-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/css/cssom-view/scroll-behavior-main-frame-window-expected.txt
+++ /Volumes/Data/worker/bigsur-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/css/cssom-view/scroll-behavior-main-frame-window-actual.txt
@@ -25,5 +25,5 @@
 PASS Main frame with smooth scroll-behavior ; scrollBy() with instant behavior
 PASS Main frame with smooth scroll-behavior ; scrollBy() with smooth behavior
 PASS Aborting an ongoing smooth scrolling on the main frame with another smooth scrolling
-PASS Aborting an ongoing smooth scrolling on the main frame with an instant scrolling
+FAIL Aborting an ongoing smooth scrolling on the main frame with an instant scrolling assert_equals: Final value of scrollLeft expected 0 but got 2430
 
The failure is flaky, but frequent on scroll-behavior-main-frame-window.html and constant on scroll-behavior-main-frame-root.html. 


Reproduced test failure locally using run-webkit-tests --iterations 1000 --exit-after-n-failures 1 -f --force --clobber-old-results --release imported/w3c/web-platform-tests/css/cssom-view/scroll-behavior-main-frame-window.html and run-webkit-tests --iterations 1000 --exit-after-n-failures 1 -f --force --clobber-old-results --release imported/w3c/web-platform-tests/css/cssom-view/scroll-behavior-main-frame-root.html
Comment 1 Radar WebKit Bug Importer 2021-10-12 11:41:40 PDT
<rdar://problem/84158655>
Comment 2 Eric Hutchison 2021-10-12 12:05:40 PDT
Updated test expectations at https://trac.webkit.org/changeset/284000/webkit