[Webkit-unassigned] [Bug 83187] New: Pixel hash is failing for css3/filters test

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=83187

           Summary: Pixel hash is failing for css3/filters test
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh
        OS/Version: Mac OS X 10.7
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jonlee at apple.com
                CC: webkit-bug-importer at group.apple.com


While unskipping the tests in b80630, I found that there are still minute differences between the results of WK1 and WK2. 14 of the 18 tests in that patch pass the pixel test, but fail the hash. If you run those tests with -tolerance=0, then they fail completely.

  css3/filters/crash-filter-change.html -> pixel hash failed (but pixel test still passes)
  css3/filters/effect-brightness.html -> pixel hash failed (but pixel test still passes)
  css3/filters/effect-contrast.html -> pixel hash failed (but pixel test still passes)
  css3/filters/effect-drop-shadow.html -> pixel hash failed (but pixel test still passes)
  css3/filters/effect-grayscale.html -> pixel hash failed (but pixel test still passes)
  css3/filters/effect-hue-rotate.html -> pixel hash failed (but pixel test still passes)
  css3/filters/effect-invert.html -> pixel hash failed (but pixel test still passes)
  css3/filters/effect-saturate.html -> pixel hash failed (but pixel test still passes)
  css3/filters/effect-sepia.html -> pixel hash failed (but pixel test still passes)
  css3/filters/filter-repaint.html -> pixel hash failed (but pixel test still passes)
  css3/filters/filter-with-transform.html -> pixel hash failed (but pixel test still passes)
  css3/filters/nested-filter.html -> pixel hash failed (but pixel test still passes)

Ultimately, many of these tests might fail the pixel hash. I'm only citing the ones that were known failures in b80630.

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