[Webkit-unassigned] [Bug 159202] New: Rewrite the tests of scripts-subsup.html

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=159202

            Bug ID: 159202
           Summary: Rewrite the tests of scripts-subsup.html
    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 mathml/presentation/scripts-subsup.html is supposed to check the rendering of subsup scripts. However, the MathML 3 recommendation does not specify precisely how to implement these scripted elements so the test is not really accurate / reliable. Currently it is failing on most platforms:

LayoutTests$ find -type f -name TestExpectations | xargs grep scripts-subsup.html
./platform/ios-simulator/TestExpectations:mathml/presentation/scripts-subsup.html [ Pass ImageOnlyFailure ]
./platform/gtk/TestExpectations:webkit.org/b/142289 mathml/presentation/scripts-subsup.html [ ImageOnlyFailure ]
./platform/ios-simulator-wk1/TestExpectations:mathml/presentation/scripts-subsup.html [ ImageOnlyFailure ]
./platform/mac/TestExpectations:mathml/presentation/scripts-subsup.html [ Pass ImageOnlyFailure ]

Moreover, we are testing several things in one reftest. We should probably split it into smaller tests and try and improve it (e.g. using javascript to measure boxes instead). Most of the features are probably already tested by imported/mathml-in-html5/mathml/subsup-parameters-1.html.

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