<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>189678</bug_id>
          
          <creation_ts>2018-09-17 13:39:34 -0700</creation_ts>
          <short_desc>[macOS WK1] Layout Test webanimations/accelerated-transition-interrupted-on-composited-element.html is a flaky image failure</short_desc>
          <delta_ts>2019-04-04 10:39:40 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>Animations</component>
          <version>Other</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>InRadar</keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Ryan Haddad">ryanhaddad</reporter>
          <assigned_to name="Antoine Quint">graouts</assigned_to>
          <cc>ap</cc>
    
    <cc>commit-queue</cc>
    
    <cc>dino</cc>
    
    <cc>graouts</cc>
    
    <cc>jlewis3</cc>
    
    <cc>realdawei</cc>
    
    <cc>tsavell</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1460305</commentid>
    <comment_count>0</comment_count>
    <who name="Ryan Haddad">ryanhaddad</who>
    <bug_when>2018-09-17 13:39:34 -0700</bug_when>
    <thetext>The following layout test is flaky on macOS WK1

webanimations/accelerated-transition-interrupted-on-composited-element.html

Probable cause:

The first failure was seen shortly after it was added in https://trac.webkit.org/changeset/235843/webkit, so it may be flaky from the start.

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&amp;tests=webanimations%2Faccelerated-transition-interrupted-on-composited-element.html

Link to failure with image diff showing a black square appearing closer to the left than expected:
https://build.webkit.org/results/Apple%20Sierra%20Debug%20WK1%20(Tests)/r235845%20(9470)/results.html</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1461171</commentid>
    <comment_count>1</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2018-09-19 16:31:13 -0700</bug_when>
    <thetext>&lt;rdar://problem/44621674&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1524217</commentid>
    <comment_count>2</comment_count>
    <who name="Antoine Quint">graouts</who>
    <bug_when>2019-04-04 07:30:55 -0700</bug_when>
    <thetext>I can remove the flakiness with using a double rAF to conclude it. Additionally, we can improve the test by using a &quot;transitioncancel&quot; event.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1524244</commentid>
    <comment_count>3</comment_count>
      <attachid>366717</attachid>
    <who name="Antoine Quint">graouts</who>
    <bug_when>2019-04-04 08:55:41 -0700</bug_when>
    <thetext>Created attachment 366717
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1524299</commentid>
    <comment_count>4</comment_count>
      <attachid>366717</attachid>
    <who name="WebKit Commit Bot">commit-queue</who>
    <bug_when>2019-04-04 10:39:38 -0700</bug_when>
    <thetext>Comment on attachment 366717
Patch

Clearing flags on attachment: 366717

Committed r243878: &lt;https://trac.webkit.org/changeset/243878&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1524300</commentid>
    <comment_count>5</comment_count>
    <who name="WebKit Commit Bot">commit-queue</who>
    <bug_when>2019-04-04 10:39:40 -0700</bug_when>
    <thetext>All reviewed patches have been landed.  Closing bug.</thetext>
  </long_desc>
      
          <attachment
              isobsolete="0"
              ispatch="1"
              isprivate="0"
          >
            <attachid>366717</attachid>
            <date>2019-04-04 08:55:41 -0700</date>
            <delta_ts>2019-04-04 10:39:38 -0700</delta_ts>
            <desc>Patch</desc>
            <filename>bug-189678-20190404175539.patch</filename>
            <type>text/plain</type>
            <size>2596</size>
            <attacher name="Antoine Quint">graouts</attacher>
            
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</bugzilla>