[Webkit-unassigned] [Bug 159418] New: Replace multiscripts-positions.html reftest with script tests

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=159418

            Bug ID: 159418
           Summary: Replace multiscripts-positions.html reftest with
                    script tests
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: MathML
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: fred.wang at free.fr

The test multiscripts-positions.html is not really reliable because it does not use any OpenType MATH fonts. It is marked "Pass ImageOnlyFailure" on mac and ios:

find -type f -name TestExpectations | xargs grep multiscripts
Layout/platform/ios-simulator/TestExpectations:mathml/presentation/multiscripts-positions.html [ Pass ImageOnlyFailure ]
Layout/platform/mac/TestExpectations:mathml/presentation/multiscripts-positions.html [ Pass ImageOnlyFailure ]

The following script tests allow some error tolerance and should be better to test the default behavior without knowing which specific font is used:

http://tests.mathml-association.org/mathml/presentation-markup/scripts/subsup-2.html
http://tests.mathml-association.org/mathml/presentation-markup/scripts/subsup-3.html

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