Bug 110555 – [Mac] REGRESSION(r143505): Some tests from Philip's Canvas test suite fail on EWS

• Status: NEW
• Component: Canvas

[Ryosuke Niwa]

http://test-results.appspot.com/dashboards/flakiness_dashboard.html#group=%40ToT%20-%20webkit.org&tests=fast%2Fcanvas%2Fcanvas-currentPath.html%2Cfast%2Fcanvas%2Fcanvas-path-constructors.html

e.g.
http://build.webkit.org/results/Apple%20MountainLion%20Release%20WK1%20(Tests)/r143686%20(7135)/results.html

[Ryosuke Niwa]

Added a failing test expectation in http://trac.webkit.org/changeset/143689.

[Dirk Schulze]

(In reply to comment #1)
> Added a failing test expectation in http://trac.webkit.org/changeset/143689.

Does it fail on your machine as well? I could not reproduce the failures for me. I rather think that the machines need a clean build from scratch.

[Ryosuke Niwa]

(In reply to comment #2)
> (In reply to comment #1)
> > Added a failing test expectation in http://trac.webkit.org/changeset/143689.
> 
> Does it fail on your machine as well? I could not reproduce the failures for me. I rather think that the machines need a clean build from scratch.

Maybe this is related to test failures we're seeing on EWS bots?

e.g.
http://webkit-commit-queue.appspot.com/results/16692592

Regressions: Unexpected text-only failures (10)
  canvas/philip/tests/2d.path.arc.scale.2.html [ Failure ]
  canvas/philip/tests/2d.path.arcTo.scale.html [ Failure ]
  canvas/philip/tests/2d.path.arcTo.transformation.html [ Failure ]
  canvas/philip/tests/2d.path.stroke.scale1.html [ Failure ]
  canvas/philip/tests/2d.path.stroke.skew.html [ Failure ]
  editing/spelling/spelling-changed-text.html [ Failure ]
  fast/canvas/canvas-composite-alpha.html [ Failure ]
  fast/canvas/webgl/read-pixels-test.html [ Failure ]

[Dirk Schulze]

(In reply to comment #3)
> (In reply to comment #2)
> > (In reply to comment #1)
> > > Added a failing test expectation in http://trac.webkit.org/changeset/143689.
> > 
> > Does it fail on your machine as well? I could not reproduce the failures for me. I rather think that the machines need a clean build from scratch.
> 
> Maybe this is related to test failures we're seeing on EWS bots?
> 
> e.g.
> http://webkit-commit-queue.appspot.com/results/16692592
> 
> Regressions: Unexpected text-only failures (10)
>   canvas/philip/tests/2d.path.arc.scale.2.html [ Failure ]
>   canvas/philip/tests/2d.path.arcTo.scale.html [ Failure ]
>   canvas/philip/tests/2d.path.arcTo.transformation.html [ Failure ]
>   canvas/philip/tests/2d.path.stroke.scale1.html [ Failure ]
>   canvas/philip/tests/2d.path.stroke.skew.html [ Failure ]
>   editing/spelling/spelling-changed-text.html [ Failure ]
>   fast/canvas/canvas-composite-alpha.html [ Failure ]
>   fast/canvas/webgl/read-pixels-test.html [ Failure ]

I don't see how, but it seems related. I tried the patch on two machines and could not reproduce this either. Nor did the build bots run into this problem.