[Webkit-unassigned] [Bug 284543] New: [scroll-animations] WPT test scroll-animations/scroll-timelines/play-animation.html has failures

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=284543

            Bug ID: 284543
           Summary: [scroll-animations] WPT test
                    scroll-animations/scroll-timelines/play-animation.html
                    has failures
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Animations
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: graouts at webkit.org
                CC: graouts at apple.com, webkit-bug-importer at group.apple.com
            Blocks: 284541

There are 7 failing subtests in scroll-animations/scroll-timelines/play-animation.html:

FAIL Playing a running animation resets a sticky start time assert_approx_equals: values do not match for "undefined" expected 0 +/- 0.125 but got 10
FAIL Playing a finished animation restarts the animation aligned at the start assert_approx_equals: values do not match for "undefined" expected 0 +/- 0.125 but got 100
FAIL Playing a finished and reversed animation restarts the animation aligned at the end assert_approx_equals: values do not match for "undefined" expected 100 +/- 0.125 but got 0
FAIL Playing a pause-pending but previously finished animation realigns with the scroll position assert_approx_equals: values do not match for "After aborting a pause when finished, the start time should no longer be sticky" expected 0 +/- 0.125 but got -50
FAIL Playing a finished animation clears the start time assert_approx_equals: values do not match for "start time is zero" expected 0 +/- 0.125 but got -100
FAIL Resuming an animation from paused realigns with scroll position. assert_approx_equals: values do not match for "undefined" expected 0 +/- 0.125 but got -50
FAIL A pending playback rate is used when determining timeline range alignment assert_approx_equals: values do not match for "undefined" expected 100 +/- 0.125 but got -100


Referenced Bugs:

https://bugs.webkit.org/show_bug.cgi?id=284541
[Bug 284541] [scroll-animations] fix WPT failures under scroll-animations/scroll-timelines
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