[Webkit-unassigned] [Bug 183631] New: MathML WPT test for RadicalDegreeBottomRaisePercent fails

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=183631

            Bug ID: 183631
           Summary: MathML WPT test for RadicalDegreeBottomRaisePercent
                    fails
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: MathML
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: fred.wang at free.fr

Test RadicalDegreeBottomRaisePercent from LayoutTests/imported/w3c/web-platform-tests/mathml/presentation-markup/radicals/root-parameters-1.html fails. This was the workaround we had in the past:

   function runTests() {
     test(function() {
       var v1 = 25;
       var v2 = 1000 * emToPx;
       var radicalHeight = getBox("base001").height + v2;
       // FIXME: The drawing and measuring of the radical's StretchyOperator seems weird... For now, we adjust the height to pass this test.
       radicalHeight -= v2;
       assert_approx_equals(getBox("ref001").top - getBox("index001").bottom,
                            v1 * radicalHeight / 100, epsilon,
                            "mroot: vertical position of index");
     }, "RadicalDegreeBottomRaisePercent");

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