Update web-platform-tests to revision e8bfc205e36ad699601212cd50083870bad9a75d

tests/wpt/web-platform-tests/mathml/tools/axisheight.py

@@ -0,0 +1,23 @@
+#!/usr/bin/python
+
+from utils import mathfont
+import fontforge
+
+verticalArrowCodePoint = 0x21A8
+v1 = 5 * mathfont.em
+v2 = 14 * mathfont.em
+f = mathfont.create("axisheight%d-verticalarrow%d" % (v1, v2))
+f.math.AxisHeight = v1
+mathfont.createSquareGlyph(f, verticalArrowCodePoint)
+g = f.createChar(-1, "size1")
+mathfont.drawRectangleGlyph(g, mathfont.em, v2 / 2, 0)
+g = f.createChar(-1, "size2")
+mathfont.drawRectangleGlyph(g, mathfont.em, v2, 0)
+g = f.createChar(-1, "bot")
+mathfont.drawRectangleGlyph(g, mathfont.em, v2 + v1, 0)
+g = f.createChar(-1, "ext")
+mathfont.drawRectangleGlyph(g, mathfont.em, mathfont.em, 0)
+f[verticalArrowCodePoint].verticalVariants = "uni21A8 size1 size2"
+f[verticalArrowCodePoint].verticalComponents = \
+  (("bot", False, 0, 0, mathfont.em), ("ext", True, 0, 0, mathfont.em));
+mathfont.save(f)

tests/wpt/web-platform-tests/mathml/tools/fractions.py

@@ -0,0 +1,153 @@
+#!/usr/bin/python
+
+from utils import mathfont
+import fontforge
+
+v1 = 7 * mathfont.em
+v2 = 1 * mathfont.em
+f = mathfont.create("fraction-axisheight%d-rulethickness%d" % (v1, v2))
+f.math.AxisHeight = v1
+f.math.FractionDenominatorDisplayStyleGapMin = 0
+f.math.FractionDenominatorDisplayStyleShiftDown = 0
+f.math.FractionDenominatorGapMin = 0
+f.math.FractionDenominatorShiftDown = 0
+f.math.FractionNumeratorDisplayStyleGapMin = 0
+f.math.FractionNumeratorDisplayStyleShiftUp = 0
+f.math.FractionNumeratorGapMin = 0
+f.math.FractionNumeratorShiftUp = 0
+f.math.FractionRuleThickness = v2
+mathfont.save(f)
+
+v1 = 5 * mathfont.em
+v2 = 1 * mathfont.em
+f = mathfont.create("fraction-denominatordisplaystylegapmin%d-rulethickness%d" % (v1, v2))
+f.math.AxisHeight = 0
+f.math.FractionDenominatorDisplayStyleGapMin = v1
+f.math.FractionDenominatorDisplayStyleShiftDown = 0
+f.math.FractionDenominatorGapMin = 0
+f.math.FractionDenominatorShiftDown = 0
+f.math.FractionNumeratorDisplayStyleGapMin = 0
+f.math.FractionNumeratorDisplayStyleShiftUp = 0
+f.math.FractionNumeratorGapMin = 0
+f.math.FractionNumeratorShiftUp = 0
+f.math.FractionRuleThickness = v2
+mathfont.save(f)
+
+v1 = 6 * mathfont.em
+v2 = 1 * mathfont.em
+f = mathfont.create("fraction-denominatordisplaystyleshiftdown%d-rulethickness%d" % (v1, v2))
+f.math.AxisHeight = 0
+f.math.FractionDenominatorDisplayStyleGapMin = 0
+f.math.FractionDenominatorDisplayStyleShiftDown = v1
+f.math.FractionDenominatorGapMin = 0
+f.math.FractionDenominatorShiftDown = 0
+f.math.FractionNumeratorDisplayStyleGapMin = 0
+f.math.FractionNumeratorDisplayStyleShiftUp = 0
+f.math.FractionNumeratorGapMin = 0
+f.math.FractionNumeratorShiftUp = 0
+f.math.FractionRuleThickness = v2
+mathfont.save(f)
+
+v1 = 4 * mathfont.em
+v2 = 1 * mathfont.em
+f = mathfont.create("fraction-denominatorgapmin%d-rulethickness%d" % (v1, v2))
+f.math.AxisHeight = 0
+f.math.FractionDenominatorDisplayStyleGapMin = 0
+f.math.FractionDenominatorDisplayStyleShiftDown = 0
+f.math.FractionDenominatorGapMin = v1
+f.math.FractionDenominatorShiftDown = 0
+f.math.FractionNumeratorDisplayStyleGapMin = 0
+f.math.FractionNumeratorDisplayStyleShiftUp = 0
+f.math.FractionNumeratorGapMin = 0
+f.math.FractionNumeratorShiftUp = 0
+f.math.FractionRuleThickness = v2
+mathfont.save(f)
+
+v1 = 3 * mathfont.em
+v2 = 1 * mathfont.em
+f = mathfont.create("fraction-denominatorshiftdown%d-rulethickness%d" % (v1, v2))
+f.math.AxisHeight = 0
+f.math.FractionDenominatorDisplayStyleGapMin = 0
+f.math.FractionDenominatorDisplayStyleShiftDown = 0
+f.math.FractionDenominatorGapMin = 0
+f.math.FractionDenominatorShiftDown = v1
+f.math.FractionNumeratorDisplayStyleGapMin = 0
+f.math.FractionNumeratorDisplayStyleShiftUp = 0
+f.math.FractionNumeratorGapMin = 0
+f.math.FractionNumeratorShiftUp = 0
+f.math.FractionRuleThickness = v2
+mathfont.save(f)
+
+v1 = 8 * mathfont.em
+v2 = 1 * mathfont.em
+f = mathfont.create("fraction-numeratordisplaystylegapmin%d-rulethickness%d" % (v1, v2))
+f.math.AxisHeight = 0
+f.math.FractionDenominatorDisplayStyleGapMin = 0
+f.math.FractionDenominatorDisplayStyleShiftDown = 0
+f.math.FractionDenominatorGapMin = 0
+f.math.FractionDenominatorShiftDown = 0
+f.math.FractionNumeratorDisplayStyleGapMin = v1
+f.math.FractionNumeratorDisplayStyleShiftUp = 0
+f.math.FractionNumeratorGapMin = 0
+f.math.FractionNumeratorShiftUp = 0
+f.math.FractionRuleThickness = v2
+mathfont.save(f)
+
+v1 = 2 * mathfont.em
+v2 = 1 * mathfont.em
+f = mathfont.create("fraction-numeratordisplaystyleshiftup%d-rulethickness%d" % (v1, v2))
+f.math.AxisHeight = 0
+f.math.FractionDenominatorDisplayStyleGapMin = 0
+f.math.FractionDenominatorDisplayStyleShiftDown = 0
+f.math.FractionDenominatorGapMin = 0
+f.math.FractionDenominatorShiftDown = 0
+f.math.FractionNumeratorDisplayStyleGapMin = 0
+f.math.FractionNumeratorDisplayStyleShiftUp = v1
+f.math.FractionNumeratorGapMin = 0
+f.math.FractionNumeratorShiftUp = 0
+f.math.FractionRuleThickness = v2
+mathfont.save(f)
+
+v1 = 9 * mathfont.em
+v2 = 1 * mathfont.em
+f = mathfont.create("fraction-numeratorgapmin%d-rulethickness%d" % (v1, v2))
+f.math.AxisHeight = 0
+f.math.FractionDenominatorDisplayStyleGapMin = 0
+f.math.FractionDenominatorDisplayStyleShiftDown = 0
+f.math.FractionDenominatorGapMin = 0
+f.math.FractionDenominatorShiftDown = 0
+f.math.FractionNumeratorDisplayStyleGapMin = 0
+f.math.FractionNumeratorDisplayStyleShiftUp = 0
+f.math.FractionNumeratorGapMin = v1
+f.math.FractionNumeratorShiftUp = 0
+f.math.FractionRuleThickness = v2
+mathfont.save(f)
+
+v1 = 11 * mathfont.em
+v2 = 1 * mathfont.em
+f = mathfont.create("fraction-numeratorshiftup%d-rulethickness%d" % (v1, v2))
+f.math.AxisHeight = 0
+f.math.FractionDenominatorDisplayStyleGapMin = 0
+f.math.FractionDenominatorDisplayStyleShiftDown = 0
+f.math.FractionDenominatorGapMin = 0
+f.math.FractionDenominatorShiftDown = 0
+f.math.FractionNumeratorDisplayStyleGapMin = 0
+f.math.FractionNumeratorDisplayStyleShiftUp = 0
+f.math.FractionNumeratorGapMin = 0
+f.math.FractionNumeratorShiftUp = v1
+f.math.FractionRuleThickness = v2
+mathfont.save(f)
+
+v1 = 10 * mathfont.em
+f = mathfont.create("fraction-rulethickness%d" % v1)
+f.math.AxisHeight = 0
+f.math.FractionDenominatorDisplayStyleGapMin = 0
+f.math.FractionDenominatorDisplayStyleShiftDown = 0
+f.math.FractionDenominatorGapMin = 0
+f.math.FractionDenominatorShiftDown = 0
+f.math.FractionNumeratorDisplayStyleGapMin = 0
+f.math.FractionNumeratorDisplayStyleShiftUp = 0
+f.math.FractionNumeratorGapMin = 0
+f.math.FractionNumeratorShiftUp = 0
+f.math.FractionRuleThickness = v1
+mathfont.save(f)

tests/wpt/web-platform-tests/mathml/tools/largeop.py

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+#!/usr/bin/python
+
+from utils import mathfont
+import fontforge
+
+nAryWhiteVerticalBarCodePoint = 0x2AFF
+v1 = 5 * mathfont.em
+f = mathfont.create("largeop-displayoperatorminheight%d" % v1)
+f.math.DisplayOperatorMinHeight = v1
+mathfont.createSquareGlyph(f, nAryWhiteVerticalBarCodePoint)
+g = f.createChar(-1, "uni2AFF.display")
+mathfont.drawRectangleGlyph(g, mathfont.em, v1, 0)
+f[nAryWhiteVerticalBarCodePoint].verticalVariants = "uni2AFF uni2AFF.display"
+mathfont.save(f)

tests/wpt/web-platform-tests/mathml/tools/limits.py

@@ -0,0 +1,74 @@
+#!/usr/bin/python
+
+from utils import mathfont
+import fontforge
+
+nArySumCodePoint = 0x2211 # largeop operator
+
+v = 3 * mathfont.em
+f = mathfont.create("limits-lowerlimitbaselinedropmin%d" % v)
+mathfont.createSquareGlyph(f, nArySumCodePoint)
+f.math.LowerLimitBaselineDropMin = v
+f.math.LowerLimitGapMin = 0
+f.math.OverbarExtraAscender = 0
+f.math.OverbarVerticalGap = 0
+f.math.StretchStackBottomShiftDown = 0
+f.math.StretchStackGapAboveMin = 0
+f.math.StretchStackGapBelowMin = 0
+f.math.StretchStackTopShiftUp = 0
+f.math.UnderbarExtraDescender = 0
+f.math.UnderbarVerticalGap = 0
+f.math.UpperLimitBaselineRiseMin = 0
+f.math.UpperLimitGapMin = 0
+mathfont.save(f)
+
+v = 11 * mathfont.em
+f = mathfont.create("limits-lowerlimitgapmin%d" % v)
+mathfont.createSquareGlyph(f, nArySumCodePoint)
+f.math.LowerLimitBaselineDropMin = 0
+f.math.LowerLimitGapMin = v
+f.math.OverbarExtraAscender = 0
+f.math.OverbarVerticalGap = 0
+f.math.StretchStackBottomShiftDown = 0
+f.math.StretchStackGapAboveMin = 0
+f.math.StretchStackGapBelowMin = 0
+f.math.StretchStackTopShiftUp = 0
+f.math.UnderbarExtraDescender = 0
+f.math.UnderbarVerticalGap = 0
+f.math.UpperLimitBaselineRiseMin = 0
+f.math.UpperLimitGapMin = 0
+mathfont.save(f)
+
+v = 5 * mathfont.em
+f = mathfont.create("limits-upperlimitbaselinerisemin%d" % v)
+mathfont.createSquareGlyph(f, nArySumCodePoint)
+f.math.LowerLimitBaselineDropMin = 0
+f.math.LowerLimitGapMin = 0
+f.math.OverbarExtraAscender = 0
+f.math.OverbarVerticalGap = 0
+f.math.StretchStackBottomShiftDown = 0
+f.math.StretchStackGapAboveMin = 0
+f.math.StretchStackGapBelowMin = 0
+f.math.StretchStackTopShiftUp = 0
+f.math.UnderbarExtraDescender = 0
+f.math.UnderbarVerticalGap = 0
+f.math.UpperLimitBaselineRiseMin = v
+f.math.UpperLimitGapMin = 0
+mathfont.save(f)
+
+v = 7 * mathfont.em
+f = mathfont.create("limits-upperlimitgapmin%d" % v)
+mathfont.createSquareGlyph(f, nArySumCodePoint)
+f.math.LowerLimitBaselineDropMin = 0
+f.math.LowerLimitGapMin = 0
+f.math.OverbarExtraAscender = 0
+f.math.OverbarVerticalGap = 0
+f.math.StretchStackBottomShiftDown = 0
+f.math.StretchStackGapAboveMin = 0
+f.math.StretchStackGapBelowMin = 0
+f.math.StretchStackTopShiftUp = 0
+f.math.UnderbarExtraDescender = 0
+f.math.UnderbarVerticalGap = 0
+f.math.UpperLimitBaselineRiseMin = 0
+f.math.UpperLimitGapMin = v
+mathfont.save(f)

tests/wpt/web-platform-tests/mathml/tools/mathvariant-transforms.py

@@ -0,0 +1,127 @@
+#!/usr/bin/python
+
+from __future__ import print_function
+from lxml import etree
+from utils.misc import downloadWithProgressBar
+from utils import mathfont
+import json
+
+# Retrieve the unicode.xml file if necessary.
+unicodeXML = downloadWithProgressBar("http://www.w3.org/2003/entities/2007xml/unicode.xml")
+
+# Extract the mathvariants transformation.
+xsltTransform = etree.XSLT(etree.XML('''\
+<xsl:stylesheet version="1.0"
+                       xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+  <xsl:strip-space elements="*"/>
+  <xsl:template match="charlist">
+    <root><xsl:apply-templates select="character"/></root>
+  </xsl:template>
+  <xsl:template match="character">
+    <xsl:if test="surrogate">
+      <entry>
+        <xsl:attribute name="mathvariant">
+            <xsl:value-of select="surrogate/@mathvariant"/>
+        </xsl:attribute>
+        <xsl:attribute name="baseChar">
+          <xsl:value-of select="surrogate/@ref"/>
+        </xsl:attribute>
+        <xsl:attribute name="transformedChar">
+          <xsl:choose>
+            <xsl:when test="bmp">
+              <xsl:value-of select="bmp/@ref"/>
+            </xsl:when>
+            <xsl:otherwise>
+               <xsl:value-of select="@id"/>
+            </xsl:otherwise>
+          </xsl:choose>
+        </xsl:attribute>
+      </entry>
+    </xsl:if>
+  </xsl:template>
+</xsl:stylesheet>'''))
+
+# Put the mathvariant transforms into a Python structure.
+mathvariantTransforms = {}
+root = xsltTransform(etree.parse(unicodeXML)).getroot()
+def parseCodePoint(aHexaString):
+    return int("0x%s" % aHexaString[1:], 16)
+for entry in root:
+    mathvariant = entry.get("mathvariant")
+    baseChar = parseCodePoint(entry.get("baseChar"))
+    transformedChar = parseCodePoint(entry.get("transformedChar"))
+    if mathvariant not in mathvariantTransforms:
+        mathvariantTransforms[mathvariant] = {}
+    mathvariantTransforms[mathvariant][baseChar] = transformedChar
+
+# There is no "isolated" mathvariant.
+del mathvariantTransforms["isolated"]
+
+# Create a WOFF font for each mathvariant.
+for mathvariant in mathvariantTransforms:
+    font = mathfont.create("mathvariant-%s" % mathvariant)
+    for baseChar in mathvariantTransforms[mathvariant]:
+        if baseChar not in font:
+            mathfont.createGlyphFromValue(font, baseChar)
+        transformedChar = mathvariantTransforms[mathvariant][baseChar]
+        mathfont.createGlyphFromValue(font, transformedChar)
+    mathfont.save(font)
+
+# Create a test font for each mathvariant.
+for mathvariant in mathvariantTransforms:
+    print("Generating test for %s..." % mathvariant, end="")
+    reftest = open("../relations/css-styling/mathvariant-%s.html" % mathvariant, "w")
+    reftestReference = open("../relations/css-styling/mathvariant-%s-ref.html" % mathvariant, "w")
+    source = '\
+<!DOCTYPE html>\n\
+<html>\n\
+<head>\n\
+<meta charset="utf-8"/>\n\
+<title>mathvariant %s</title>\n'
+    reftest.write(source % mathvariant)
+    reftestReference.write(source % ("%s (reference)" % mathvariant))
+    source ='\
+<link rel="help" href="http://www.mathml-association.org/MathMLinHTML5/S2.html#SS3.SSS1.tab2"/>\n\
+<link rel="match" href="mathvariant-%s-ref.html"/>\n\
+<meta name="assert" content="Verify that a single-char <mi> with a %s mathvariant is equivalent to an <mi> with the transformed unicode character.">\n'
+    reftest.write(source % (mathvariant, mathvariant))
+    source = '\
+<style>\n\
+  @font-face {\n\
+    font-family: TestFont;\n\
+    src: url("/fonts/math/mathvariant-%s.woff");\n\
+  }\n\
+  body > span {\n\
+    padding: 10px;\n\
+  }\n\
+  span > span {\n\
+    font-family: monospace;\n\
+    font-size: 10px;\n\
+  }\n\
+  math {\n\
+    font-family: TestFont;\n\
+    font-size: 10px;\n\
+  }\n\
+</style>\n\
+<body>\n\
+  <!-- Generated by mathml/tools/mathvariant.py; DO NOT EDIT. -->\n\
+  <p>Test passes if all the equalities below are true.</p>\n' % mathvariant
+    reftest.write(source)
+    reftestReference.write(source)
+    charIndex = 0
+    for baseChar in mathvariantTransforms[mathvariant]:
+        transformedChar = mathvariantTransforms[mathvariant][baseChar]
+        reftest.write('  <span><math><mi mathvariant="%s">&#x%0X;</mi></math>=<span>%05X</span></span>' % (mathvariant, baseChar, transformedChar))
+        reftestReference.write('  <span><math><mi>&#x%0X;</mi></math>=<span>%05X</span></span>' % (transformedChar, transformedChar))
+        charIndex += 1
+        if charIndex % 10 == 0:
+            reftest.write('<br/>')
+            reftestReference.write('<br/>')
+        reftest.write('\n')
+        reftestReference.write('\n')
+    source = '</body>\n</html>\n'
+    reftest.write(source)
+    reftestReference.write(source)
+    reftest.close()
+    reftestReference.close()
+    print(" done.")

tests/wpt/web-platform-tests/mathml/tools/radicals.py

@@ -0,0 +1,109 @@
+#!/usr/bin/python
+
+from utils import mathfont
+import fontforge
+
+def createStretchyRadical(aFont):
+    radicalCodePoint = 0x221a
+    mathfont.createSquareGlyph(aFont, radicalCodePoint)
+    g = aFont.createChar(-1, "size1")
+    mathfont.drawRectangleGlyph(g, mathfont.em, 2 * mathfont.em, 0)
+    g = aFont.createChar(-1, "size2")
+    mathfont.drawRectangleGlyph(g, mathfont.em, 3 * mathfont.em, 0)
+    g = aFont.createChar(-1, "size3")
+    mathfont.drawRectangleGlyph(g, mathfont.em, 4 * mathfont.em, 0)
+    overlap = mathfont.em / 2
+    aFont[radicalCodePoint].verticalVariants = "radical size1 size2 size3"
+    aFont[radicalCodePoint].verticalComponents = \
+        (("size2", False, 0, mathfont.em, 3 * mathfont.em), \
+         ("size1", True, mathfont.em, mathfont.em, 2 * mathfont.em))
+
+v1 = 25
+v2 = 1 * mathfont.em
+f = mathfont.create("radical-degreebottomraisepercent%d-rulethickness%d" % (v1, v2))
+createStretchyRadical(f)
+f.math.RadicalDegreeBottomRaisePercent = v1
+f.math.RadicalDisplayStyleVerticalGap = 0
+f.math.RadicalExtraAscender = 0
+f.math.RadicalKernAfterDegree = 0
+f.math.RadicalKernBeforeDegree = 0
+f.math.RadicalRuleThickness = v2
+f.math.RadicalVerticalGap = 0
+mathfont.save(f)
+
+v1 = 7 * mathfont.em
+v2 = 1 * mathfont.em
+f = mathfont.create("radical-displaystyleverticalgap%d-rulethickness%d" % (v1, v2))
+createStretchyRadical(f)
+f.math.RadicalDegreeBottomRaisePercent = 0
+f.math.RadicalDisplayStyleVerticalGap = v1
+f.math.RadicalExtraAscender = 0
+f.math.RadicalKernAfterDegree = 0
+f.math.RadicalKernBeforeDegree = 0
+f.math.RadicalRuleThickness = v2
+f.math.RadicalVerticalGap = 0
+mathfont.save(f)
+
+v1 = 3 * mathfont.em
+v2 = 1 * mathfont.em
+f = mathfont.create("radical-extraascender%d-rulethickness%d" % (v1, v2))
+createStretchyRadical(f)
+f.math.RadicalDegreeBottomRaisePercent = 0
+f.math.RadicalDisplayStyleVerticalGap = 0
+f.math.RadicalExtraAscender = v1
+f.math.RadicalKernAfterDegree = 0
+f.math.RadicalKernBeforeDegree = 0
+f.math.RadicalRuleThickness = v2
+f.math.RadicalVerticalGap = 0
+mathfont.save(f)
+
+v1 = 5 * mathfont.em
+v2 = 1 * mathfont.em
+f = mathfont.create("radical-kernafterdegreeminus%d-rulethickness%d" % (v1, v2))
+createStretchyRadical(f)
+f.math.RadicalDegreeBottomRaisePercent = 0
+f.math.RadicalDisplayStyleVerticalGap = 0
+f.math.RadicalExtraAscender = 0
+f.math.RadicalKernAfterDegree = -v1
+f.math.RadicalKernBeforeDegree = 0
+f.math.RadicalRuleThickness = v2
+f.math.RadicalVerticalGap = 0
+mathfont.save(f)
+
+v1 = 4 * mathfont.em
+v2 = 1 * mathfont.em
+f = mathfont.create("radical-kernbeforedegree%d-rulethickness%d" % (v1, v2))
+createStretchyRadical(f)
+f.math.RadicalDegreeBottomRaisePercent = 0
+f.math.RadicalDisplayStyleVerticalGap = 0
+f.math.RadicalExtraAscender = 0
+f.math.RadicalKernAfterDegree = 0
+f.math.RadicalKernBeforeDegree = v1
+f.math.RadicalRuleThickness = v2
+f.math.RadicalVerticalGap = 0
+mathfont.save(f)
+
+v = 8 * mathfont.em
+f = mathfont.create("radical-rulethickness%d" % v)
+createStretchyRadical(f)
+f.math.RadicalDegreeBottomRaisePercent = 0
+f.math.RadicalDisplayStyleVerticalGap = 0
+f.math.RadicalExtraAscender = 0
+f.math.RadicalKernAfterDegree = 0
+f.math.RadicalKernBeforeDegree = 0
+f.math.RadicalRuleThickness = v
+f.math.RadicalVerticalGap = 0
+mathfont.save(f)
+
+v1 = 6 * mathfont.em
+v2 = 1 * mathfont.em
+f = mathfont.create("radical-verticalgap%d-rulethickness%d" % (v1, v2))
+createStretchyRadical(f)
+f.math.RadicalDegreeBottomRaisePercent = 0
+f.math.RadicalDisplayStyleVerticalGap = 0
+f.math.RadicalExtraAscender = 0
+f.math.RadicalKernAfterDegree = 0
+f.math.RadicalKernBeforeDegree = 0
+f.math.RadicalRuleThickness = v2
+f.math.RadicalVerticalGap = v1
+mathfont.save(f)

tests/wpt/web-platform-tests/mathml/tools/scripts.py

@@ -0,0 +1,145 @@
+#!/usr/bin/python
+
+from utils import mathfont
+import fontforge
+
+v = 3 * mathfont.em
+f = mathfont.create("scripts-spaceafterscript%d" % v)
+f.math.SpaceAfterScript = v
+f.math.SubSuperscriptGapMin = 0
+f.math.SubscriptBaselineDropMin = 0
+f.math.SubscriptShiftDown = 0
+f.math.SubscriptTopMax = 0
+f.math.SuperscriptBaselineDropMax = 0
+f.math.SuperscriptBottomMaxWithSubscript = 0
+f.math.SuperscriptBottomMin = 0
+f.math.SuperscriptShiftUp = 0
+f.math.SuperscriptShiftUpCramped = 0
+mathfont.save(f)
+
+v = 7 * mathfont.em
+f = mathfont.create("scripts-superscriptshiftup%d" % v)
+f.math.SpaceAfterScript = 0
+f.math.SubSuperscriptGapMin = 0
+f.math.SubscriptBaselineDropMin = 0
+f.math.SubscriptShiftDown = 0
+f.math.SubscriptTopMax = 0
+f.math.SuperscriptBaselineDropMax = 0
+f.math.SuperscriptBottomMaxWithSubscript = 0
+f.math.SuperscriptBottomMin = 0
+f.math.SuperscriptShiftUp = v
+f.math.SuperscriptShiftUpCramped = 0
+mathfont.save(f)
+
+v = 5 * mathfont.em
+f = mathfont.create("scripts-superscriptshiftupcramped%d" % v)
+f.math.SpaceAfterScript = 0
+f.math.SubSuperscriptGapMin = 0
+f.math.SubscriptBaselineDropMin = 0
+f.math.SubscriptShiftDown = 0
+f.math.SubscriptTopMax = 0
+f.math.SuperscriptBaselineDropMax = 0
+f.math.SuperscriptBottomMaxWithSubscript = 0
+f.math.SuperscriptBottomMin = 0
+f.math.SuperscriptShiftUp = 0
+f.math.SuperscriptShiftUpCramped = v
+mathfont.save(f)
+
+v = 6 * mathfont.em
+f = mathfont.create("scripts-subscriptshiftdown%d" % v)
+f.math.SpaceAfterScript = 0
+f.math.SubSuperscriptGapMin = 0
+f.math.SubscriptBaselineDropMin = 0
+f.math.SubscriptShiftDown = v
+f.math.SubscriptTopMax = 0
+f.math.SuperscriptBaselineDropMax = 0
+f.math.SuperscriptBottomMaxWithSubscript = 0
+f.math.SuperscriptBottomMin = 0
+f.math.SuperscriptShiftUp = 0
+f.math.SuperscriptShiftUpCramped = 0
+mathfont.save(f)
+
+v = 11 * mathfont.em
+f = mathfont.create("scripts-subsuperscriptgapmin%d" % v)
+f.math.SpaceAfterScript = 0
+f.math.SubSuperscriptGapMin = v
+f.math.SubscriptBaselineDropMin = 0
+f.math.SubscriptShiftDown = 0
+f.math.SubscriptTopMax = 0
+f.math.SuperscriptBaselineDropMax = 0
+f.math.SuperscriptBottomMaxWithSubscript = 0
+f.math.SuperscriptBottomMin = 0
+f.math.SuperscriptShiftUp = 0
+f.math.SuperscriptShiftUpCramped = 0
+mathfont.save(f)
+
+v1 = 11 * mathfont.em
+v2 = 3 * mathfont.em
+f = mathfont.create("scripts-subsuperscriptgapmin%d-superscriptbottommaxwithsubscript%d" % (v1, v2))
+f.math.SpaceAfterScript = 0
+f.math.SubSuperscriptGapMin = v1
+f.math.SubscriptBaselineDropMin = 0
+f.math.SubscriptShiftDown = 0
+f.math.SubscriptTopMax = 0
+f.math.SuperscriptBaselineDropMax = 0
+f.math.SuperscriptBottomMaxWithSubscript = v2
+f.math.SuperscriptBottomMin = 0
+f.math.SuperscriptShiftUp = 0
+f.math.SuperscriptShiftUpCramped = 0
+mathfont.save(f)
+
+v = 4 * mathfont.em
+f = mathfont.create("scripts-subscripttopmax%d" % v)
+f.math.SpaceAfterScript = 0
+f.math.SubSuperscriptGapMin = 0
+f.math.SubscriptBaselineDropMin = 0
+f.math.SubscriptShiftDown = 0
+f.math.SubscriptTopMax = v
+f.math.SuperscriptBaselineDropMax = 0
+f.math.SuperscriptBottomMaxWithSubscript = 0
+f.math.SuperscriptBottomMin = 0
+f.math.SuperscriptShiftUp = 0
+f.math.SuperscriptShiftUpCramped = 0
+mathfont.save(f)
+
+v = 8 * mathfont.em
+f = mathfont.create("scripts-superscriptbottommin%d" % v)
+f.math.SpaceAfterScript = 0
+f.math.SubSuperscriptGapMin = 0
+f.math.SubscriptBaselineDropMin = 0
+f.math.SubscriptShiftDown = 0
+f.math.SubscriptTopMax = 0
+f.math.SuperscriptBaselineDropMax = 0
+f.math.SuperscriptBottomMaxWithSubscript = 0
+f.math.SuperscriptBottomMin = v
+f.math.SuperscriptShiftUp = 0
+f.math.SuperscriptShiftUpCramped = 0
+mathfont.save(f)
+
+v = 9 * mathfont.em
+f = mathfont.create("scripts-subscriptbaselinedropmin%d" % v)
+f.math.SpaceAfterScript = 0
+f.math.SubSuperscriptGapMin = 0
+f.math.SubscriptBaselineDropMin = v
+f.math.SubscriptShiftDown = 0
+f.math.SubscriptTopMax = 0
+f.math.SuperscriptBaselineDropMax = 0
+f.math.SuperscriptBottomMaxWithSubscript = 0
+f.math.SuperscriptBottomMin = 0
+f.math.SuperscriptShiftUp = 0
+f.math.SuperscriptShiftUpCramped = 0
+mathfont.save(f)
+
+v = 10 * mathfont.em
+f = mathfont.create("scripts-superscriptbaselinedropmax%d" % v)
+f.math.SpaceAfterScript = 0
+f.math.SubSuperscriptGapMin = 0
+f.math.SubscriptBaselineDropMin = 0
+f.math.SubscriptShiftDown = 0
+f.math.SubscriptTopMax = 0
+f.math.SuperscriptBaselineDropMax = v
+f.math.SuperscriptBottomMaxWithSubscript = 0
+f.math.SuperscriptBottomMin = 0
+f.math.SuperscriptShiftUp = 0
+f.math.SuperscriptShiftUpCramped = 0
+mathfont.save(f)

tests/wpt/web-platform-tests/mathml/tools/stacks.py

@@ -0,0 +1,81 @@
+#!/usr/bin/python
+
+from utils import mathfont
+import fontforge
+
+v = 7 * mathfont.em
+f = mathfont.create("stack-axisheight%d" % v)
+f.math.AxisHeight = v
+f.math.StackBottomDisplayStyleShiftDown = 0
+f.math.StackBottomShiftDown = 0
+f.math.StackDisplayStyleGapMin = 0
+f.math.StackGapMin = 0
+f.math.StackTopDisplayStyleShiftUp = 0
+f.math.StackTopShiftUp = 0
+mathfont.save(f)
+
+v = 5 * mathfont.em
+f = mathfont.create("stack-bottomdisplaystyleshiftdown%d" % v)
+f.math.AxisHeight = 0
+f.math.StackBottomDisplayStyleShiftDown = v
+f.math.StackBottomShiftDown = 0
+f.math.StackDisplayStyleGapMin = 0
+f.math.StackGapMin = 0
+f.math.StackTopDisplayStyleShiftUp = 0
+f.math.StackTopShiftUp = 0
+mathfont.save(f)
+
+v = 6 * mathfont.em
+f = mathfont.create("stack-bottomshiftdown%d" % v)
+f.math.AxisHeight = 0
+f.math.StackBottomDisplayStyleShiftDown = 0
+f.math.StackBottomShiftDown = v
+f.math.StackDisplayStyleGapMin = 0
+f.math.StackGapMin = 0
+f.math.StackTopDisplayStyleShiftUp = 0
+f.math.StackTopShiftUp = 0
+mathfont.save(f)
+
+v = 4 * mathfont.em
+f = mathfont.create("stack-displaystylegapmin%d" % v)
+f.math.AxisHeight = 0
+f.math.StackBottomDisplayStyleShiftDown = 0
+f.math.StackBottomShiftDown = 0
+f.math.StackDisplayStyleGapMin = v
+f.math.StackGapMin = 0
+f.math.StackTopDisplayStyleShiftUp = 0
+f.math.StackTopShiftUp = 0
+mathfont.save(f)
+
+v = 8 * mathfont.em
+f = mathfont.create("stack-gapmin%d" % v)
+f.math.AxisHeight = 0
+f.math.StackBottomDisplayStyleShiftDown = 0
+f.math.StackBottomShiftDown = 0
+f.math.StackDisplayStyleGapMin = 0
+f.math.StackGapMin = v
+f.math.StackTopDisplayStyleShiftUp = 0
+f.math.StackTopShiftUp = 0
+mathfont.save(f)
+
+v = 3 * mathfont.em
+f = mathfont.create("stack-topdisplaystyleshiftup%d" % v)
+f.math.AxisHeight = 0
+f.math.StackBottomDisplayStyleShiftDown = 0
+f.math.StackBottomShiftDown = 0
+f.math.StackDisplayStyleGapMin = 0
+f.math.StackGapMin = 0
+f.math.StackTopDisplayStyleShiftUp = v
+f.math.StackTopShiftUp = 0
+mathfont.save(f)
+
+v = 9 * mathfont.em
+f = mathfont.create("stack-topshiftup%d" % v)
+f.math.AxisHeight = 0
+f.math.StackBottomDisplayStyleShiftDown = 0
+f.math.StackBottomShiftDown = 0
+f.math.StackDisplayStyleGapMin = 0
+f.math.StackGapMin = 0
+f.math.StackTopDisplayStyleShiftUp = 0
+f.math.StackTopShiftUp = v
+mathfont.save(f)

tests/wpt/web-platform-tests/mathml/tools/stretchstacks.py

@@ -0,0 +1,74 @@
+#!/usr/bin/python
+
+from utils import mathfont
+import fontforge
+
+arrowCodePoint = 0x2192 # horizontal stretch operator
+
+v = 3 * mathfont.em
+f = mathfont.create("stretchstack-bottomshiftdown%d" % v)
+mathfont.createSquareGlyph(f, arrowCodePoint)
+f.math.LowerLimitBaselineDropMin = 0
+f.math.LowerLimitGapMin = 0
+f.math.OverbarExtraAscender = 0
+f.math.OverbarVerticalGap = 0
+f.math.StretchStackBottomShiftDown = v
+f.math.StretchStackGapAboveMin = 0
+f.math.StretchStackGapBelowMin = 0
+f.math.StretchStackTopShiftUp = 0
+f.math.UnderbarExtraDescender = 0
+f.math.UnderbarVerticalGap = 0
+f.math.UpperLimitBaselineRiseMin = 0
+f.math.UpperLimitGapMin = 0
+mathfont.save(f)
+
+v = 11 * mathfont.em
+f = mathfont.create("stretchstack-gapbelowmin%d" % v)
+mathfont.createSquareGlyph(f, arrowCodePoint)
+f.math.LowerLimitBaselineDropMin = 0
+f.math.LowerLimitGapMin = 0
+f.math.OverbarExtraAscender = 0
+f.math.OverbarVerticalGap = 0
+f.math.StretchStackBottomShiftDown = 0
+f.math.StretchStackGapAboveMin = 0
+f.math.StretchStackGapBelowMin = v
+f.math.StretchStackTopShiftUp = 0
+f.math.UnderbarExtraDescender = 0
+f.math.UnderbarVerticalGap = 0
+f.math.UpperLimitBaselineRiseMin = 0
+f.math.UpperLimitGapMin = 0
+mathfont.save(f)
+
+v = 5 * mathfont.em
+f = mathfont.create("stretchstack-topshiftup%d" % v)
+mathfont.createSquareGlyph(f, arrowCodePoint)
+f.math.LowerLimitBaselineDropMin = 0
+f.math.LowerLimitGapMin = 0
+f.math.OverbarExtraAscender = 0
+f.math.OverbarVerticalGap = 0
+f.math.StretchStackBottomShiftDown = 0
+f.math.StretchStackGapAboveMin = 0
+f.math.StretchStackGapBelowMin = 0
+f.math.StretchStackTopShiftUp = v
+f.math.UnderbarExtraDescender = 0
+f.math.UnderbarVerticalGap = 0
+f.math.UpperLimitBaselineRiseMin = 0
+f.math.UpperLimitGapMin = 0
+mathfont.save(f)
+
+v = 7 * mathfont.em
+f = mathfont.create("stretchstack-gapabovemin%d" % v)
+mathfont.createSquareGlyph(f, arrowCodePoint)
+f.math.LowerLimitBaselineDropMin = 0
+f.math.LowerLimitGapMin = 0
+f.math.OverbarExtraAscender = 0
+f.math.OverbarVerticalGap = 0
+f.math.StretchStackBottomShiftDown = 0
+f.math.StretchStackGapAboveMin = v
+f.math.StretchStackGapBelowMin = 0
+f.math.StretchStackTopShiftUp = 0
+f.math.UnderbarExtraDescender = 0
+f.math.UnderbarVerticalGap = 0
+f.math.UpperLimitBaselineRiseMin = 0
+f.math.UpperLimitGapMin = 0
+mathfont.save(f)

tests/wpt/web-platform-tests/mathml/tools/underover.py

@@ -0,0 +1,84 @@
+#!/usr/bin/python
+
+from utils import mathfont
+import fontforge
+
+breveCodePoint = 0x2D8 # accent operator
+degreeCodePoint = 0xB0 # nonaccent operator
+accentBaseHeight = 4 * mathfont.em
+
+v = 3 * mathfont.em
+f = mathfont.create("underover-accentbaseheight%d-overbarextraascender%d" % (accentBaseHeight, v))
+mathfont.createSquareGlyph(f, breveCodePoint)
+mathfont.createSquareGlyph(f, degreeCodePoint)
+f.math.AccentBaseHeight = accentBaseHeight
+f.math.LowerLimitBaselineDropMin = 0
+f.math.LowerLimitGapMin = 0
+f.math.OverbarExtraAscender = v
+f.math.OverbarVerticalGap = 0
+f.math.StretchStackBottomShiftDown = 0
+f.math.StretchStackGapAboveMin = 0
+f.math.StretchStackGapBelowMin = 0
+f.math.StretchStackTopShiftUp = 0
+f.math.UnderbarExtraDescender = 0
+f.math.UnderbarVerticalGap = 0
+f.math.UpperLimitBaselineRiseMin = 0
+f.math.UpperLimitGapMin = 0
+mathfont.save(f)
+
+v = 11 * mathfont.em
+f = mathfont.create("underover-accentbaseheight%d-overbarverticalgap%d" % (accentBaseHeight, v))
+mathfont.createSquareGlyph(f, breveCodePoint)
+mathfont.createSquareGlyph(f, degreeCodePoint)
+f.math.AccentBaseHeight = accentBaseHeight
+f.math.LowerLimitBaselineDropMin = 0
+f.math.LowerLimitGapMin = 0
+f.math.OverbarExtraAscender = 0
+f.math.OverbarVerticalGap = v
+f.math.StretchStackBottomShiftDown = 0
+f.math.StretchStackGapAboveMin = 0
+f.math.StretchStackGapBelowMin = 0
+f.math.StretchStackTopShiftUp = 0
+f.math.UnderbarExtraDescender = 0
+f.math.UnderbarVerticalGap = 0
+f.math.UpperLimitBaselineRiseMin = 0
+f.math.UpperLimitGapMin = 0
+mathfont.save(f)
+
+v = 5 * mathfont.em
+f = mathfont.create("underover-accentbaseheight%d-underbarextradescender%d" % (accentBaseHeight, v))
+mathfont.createSquareGlyph(f, breveCodePoint)
+mathfont.createSquareGlyph(f, degreeCodePoint)
+f.math.AccentBaseHeight = accentBaseHeight
+f.math.LowerLimitBaselineDropMin = 0
+f.math.LowerLimitGapMin = 0
+f.math.OverbarExtraAscender = 0
+f.math.OverbarVerticalGap = 0
+f.math.StretchStackBottomShiftDown = 0
+f.math.StretchStackGapAboveMin = 0
+f.math.StretchStackGapBelowMin = 0
+f.math.StretchStackTopShiftUp = 0
+f.math.UnderbarExtraDescender = v
+f.math.UnderbarVerticalGap = 0
+f.math.UpperLimitBaselineRiseMin = 0
+f.math.UpperLimitGapMin = 0
+mathfont.save(f)
+
+v = 7 * mathfont.em
+f = mathfont.create("underover-accentbaseheight%d-underbarverticalgap%d" % (accentBaseHeight, v))
+mathfont.createSquareGlyph(f, breveCodePoint)
+mathfont.createSquareGlyph(f, degreeCodePoint)
+f.math.AccentBaseHeight = accentBaseHeight
+f.math.LowerLimitBaselineDropMin = 0
+f.math.LowerLimitGapMin = 0
+f.math.OverbarExtraAscender = 0
+f.math.OverbarVerticalGap = 0
+f.math.StretchStackBottomShiftDown = 0
+f.math.StretchStackGapAboveMin = 0
+f.math.StretchStackGapBelowMin = 0
+f.math.StretchStackTopShiftUp = 0
+f.math.UnderbarExtraDescender = 0
+f.math.UnderbarVerticalGap = v
+f.math.UpperLimitBaselineRiseMin = 0
+f.math.UpperLimitGapMin = 0
+mathfont.save(f)

tests/wpt/web-platform-tests/mathml/tools/use-typo-lineheight.py

@@ -0,0 +1,54 @@
+#!/usr/bin/python
+
+from __future__ import print_function
+from utils.misc import MathMLAssociationCopyright
+import fontforge
+
+font = fontforge.font()
+font.em = 1000
+typoLineHeight = 2300
+winHeight = 5000
+name = "font-lineheight%d-typolineheight%d" % (winHeight, typoLineHeight)
+font.fontname = name
+font.familyname = name
+font.fullname = name
+font.copyright = MathMLAssociationCopyright
+
+glyph = font.createChar(ord(" "), "space")
+glyph.width = 1000
+glyph = font.createChar(ord("O"))
+pen = glyph.glyphPen()
+pen.moveTo(0, -200)
+pen.lineTo(0, 800)
+pen.lineTo(1000, 800)
+pen.lineTo(1000, -200)
+pen.closePath();
+
+font.os2_typoascent_add = False
+font.os2_typoascent = 800
+font.os2_typodescent_add = False
+font.os2_typodescent = -200
+font.os2_typolinegap = typoLineHeight - \
+                       (font.os2_typoascent - font.os2_typodescent)
+
+font.hhea_ascent = winHeight / 2
+font.hhea_ascent_add = False
+font.hhea_descent = -winHeight / 2
+font.hhea_descent_add = False
+font.hhea_linegap = 0
+
+font.os2_winascent = winHeight / 2
+font.os2_winascent_add = False
+font.os2_windescent = winHeight / 2
+font.os2_windescent_add = False
+
+font.os2_use_typo_metrics = True
+
+path = "../../fonts/math/lineheight%d-typolineheight%d.woff" % (winHeight, typoLineHeight)
+print("Generating %s..." % path, end="")
+font.generate(path)
+if font.validate() == 0:
+    print(" done.")
+else:
+    print(" validation error!")
+    exit(1)

tests/wpt/web-platform-tests/mathml/tools/utils/mathfont.py

@@ -0,0 +1,190 @@
+from __future__ import print_function
+import fontforge
+from misc import MathMLAssociationCopyright
+
+em = 1000
+
+def create(aName):
+    print("Generating %s.woff..." % aName, end="")
+    mathFont = fontforge.font()
+    mathFont.fontname = aName
+    mathFont.familyname = aName
+    mathFont.fullname = aName
+    mathFont.copyright = MathMLAssociationCopyright
+    mathFont.encoding = "UnicodeFull"
+
+    # Create a space character. Also force the creation of some MATH subtables
+    # so that OTS will not reject the MATH table.
+    g = mathFont.createChar(ord(" "), "space")
+    g.width = em
+    g.italicCorrection = 0
+    g.topaccent = 0
+    g.mathKern.bottomLeft = tuple([(0,0)])
+    g.mathKern.bottomRight = tuple([(0,0)])
+    g.mathKern.topLeft = tuple([(0,0)])
+    g.mathKern.topRight = tuple([(0,0)])
+    mathFont[ord(" ")].horizontalVariants = "space"
+    mathFont[ord(" ")].verticalVariants = "space"
+    return mathFont
+
+def drawRectangleGlyph(aGlyph, aWidth, aAscent, aDescent):
+    p = aGlyph.glyphPen()
+    p.moveTo(0, -aDescent)
+    p.lineTo(0, aAscent)
+    p.lineTo(aWidth, aAscent)
+    p.lineTo(aWidth, -aDescent)
+    p.closePath();
+    aGlyph.width = aWidth
+
+def createSquareGlyph(aFont, aCodePoint):
+    g = aFont.createChar(aCodePoint)
+    drawRectangleGlyph(g, em, em, 0)
+
+def drawHexaDigit(aGlyph, aX, aValue):
+    t = em / 10
+    p = aGlyph.glyphPen(replace = False)
+    if aValue == 0:
+        p.moveTo(aX + t, t)
+        p.lineTo(aX + t, em - t)
+        p.lineTo(aX + em / 2 - t, em - t)
+        p.lineTo(aX + em / 2 - t, t)
+        p.closePath()
+    elif aValue == 1:
+        p.moveTo(aX + em / 2 - t, em - t)
+        p.lineTo(aX + em / 2 - t, t)
+        p.endPath()
+    elif aValue == 2:
+        p.moveTo(aX + t, em - t)
+        p.lineTo(aX + em / 2 - t, em - t)
+        p.lineTo(aX + em / 2 - t, em / 2)
+        p.lineTo(aX + t, em / 2)
+        p.lineTo(aX + t, t)
+        p.lineTo(aX + em / 2 - t, t)
+        p.endPath()
+    elif aValue == 3:
+        p.moveTo(aX + t, em - t)
+        p.lineTo(aX + em / 2 - t, em - t)
+        p.lineTo(aX + em / 2 - t, t)
+        p.lineTo(aX + t, t)
+        p.endPath()
+        p.moveTo(aX + t, em / 2)
+        p.lineTo(aX + em / 2 - 2.5 * t, em / 2)
+        p.endPath()
+    elif aValue == 4:
+        p.moveTo(aX + em / 2 - t, em - t)
+        p.lineTo(aX + em / 2 - t, t)
+        p.endPath()
+        p.moveTo(aX + t, em - t)
+        p.lineTo(aX + t, em / 2)
+        p.lineTo(aX + em / 2 - 2.5 * t, em / 2)
+        p.endPath()
+    elif aValue == 5:
+        p.moveTo(aX + em / 2 - t, em - t)
+        p.lineTo(aX + t, em - t)
+        p.lineTo(aX + t, em / 2)
+        p.lineTo(aX + em / 2 - t, em / 2)
+        p.lineTo(aX + em / 2 - t, t)
+        p.lineTo(aX + t, t)
+        p.endPath()
+    elif aValue == 6:
+        p.moveTo(aX + em / 2 - t, em - t)
+        p.lineTo(aX + t, em - t)
+        p.lineTo(aX + t, t)
+        p.lineTo(aX + em / 2 - t, t)
+        p.lineTo(aX + em / 2 - t, em / 2)
+        p.lineTo(aX + 2.5 * t, em / 2)
+        p.endPath()
+    elif aValue == 7:
+        p.moveTo(aX + t, em - t)
+        p.lineTo(aX + em / 2  - t, em - t)
+        p.lineTo(aX + em / 2 - t, t)
+        p.endPath()
+    elif aValue == 8:
+        p.moveTo(aX + t, t)
+        p.lineTo(aX + t, em - t)
+        p.lineTo(aX + em / 2 - t, em - t)
+        p.lineTo(aX + em / 2 - t, t)
+        p.closePath()
+        p.moveTo(aX + 2.5 * t, em / 2)
+        p.lineTo(aX + em / 2 - 2.5 * t, em / 2)
+        p.endPath()
+    elif aValue == 9:
+        p.moveTo(aX + t, t)
+        p.lineTo(aX + em / 2 - t, t)
+        p.lineTo(aX + em / 2 - t, em - t)
+        p.lineTo(aX + t, em - t)
+        p.lineTo(aX + t, em / 2)
+        p.lineTo(aX + em / 2 - 2.5 * t, em / 2)
+        p.endPath()
+    elif aValue == 10: # A
+        p.moveTo(aX + t, t)
+        p.lineTo(aX + t, em - t)
+        p.lineTo(aX + em / 2 - t, em - t)
+        p.lineTo(aX + em / 2 - t, t)
+        p.endPath()
+        p.moveTo(aX + 2.5 * t, em / 2)
+        p.lineTo(aX + em / 2 - 2.5 * t, em / 2)
+        p.endPath()
+    elif aValue == 11: # b
+        p.moveTo(aX + t, em - t)
+        p.lineTo(aX + t, t)
+        p.lineTo(aX + em / 2 - t, t)
+        p.lineTo(aX + em / 2 - t, em / 2)
+        p.lineTo(aX + 2.5 * t, em / 2)
+        p.endPath()
+    elif aValue == 12: # C
+        p.moveTo(aX + em / 2 - t, em - t)
+        p.lineTo(aX + t, em - t)
+        p.lineTo(aX + t, t)
+        p.lineTo(aX + em / 2 - t, t)
+        p.endPath()
+    elif aValue == 13: # d
+        p.moveTo(aX + em / 2 - t, em - t)
+        p.lineTo(aX + em / 2 - t, t)
+        p.lineTo(aX + t, t)
+        p.lineTo(aX + t, em / 2)
+        p.lineTo(aX + em / 2 - 2.5 * t, em / 2)
+        p.endPath()
+    elif aValue == 14: # E
+        p.moveTo(aX + em / 2 - t, em - t)
+        p.lineTo(aX + t, em - t)
+        p.lineTo(aX + t, t)
+        p.lineTo(aX + em / 2 - t, t)
+        p.endPath()
+        p.moveTo(aX + em / 2 - t, em / 2)
+        p.lineTo(aX + 2.5 * t, em / 2)
+        p.endPath()
+    elif aValue == 15: # F
+        p.moveTo(aX + em / 2 - t, em - t)
+        p.lineTo(aX + t, em - t)
+        p.lineTo(aX + t, t)
+        p.endPath()
+        p.moveTo(aX + em / 2 - t, em / 2)
+        p.lineTo(aX + 2.5 * t, em / 2)
+        p.endPath()
+
+def createGlyphFromValue(aFont, aCodePoint):
+    g = aFont.createChar(aCodePoint)
+    value = aCodePoint
+    for i in range(0, 5):
+        drawHexaDigit(g, (5 - (i + 1)) * em / 2, value % 16)
+        value /= 16
+    g.width = 5 * em / 2
+    g.stroke("circular", em / 10, "square", "miter", "cleanup")
+
+def save(aFont):
+    aFont.em = em
+    aFont.ascent = aFont.hhea_ascent = aFont.os2_typoascent = em
+    aFont.descent = aFont.hhea_descent = aFont.os2_typodescent = 0
+    # aFont.os2_winascent, aFont.os2_windescent should be the maximum of
+    # ascent/descent for all glyphs. Does fontforge compute them automatically?
+    aFont.hhea_ascent_add = aFont.hhea_descent_add = 0
+    aFont.os2_typoascent_add = aFont.os2_typodescent_add = 0
+    aFont.os2_winascent_add = aFont.os2_windescent_add = 0
+    aFont.os2_use_typo_metrics = True
+    aFont.generate("../../fonts/math/%s.woff" % aFont.fontname)
+    if aFont.validate() == 0:
+        print(" done.")
+    else:
+        print(" validation error!")
+        exit(1)

tests/wpt/web-platform-tests/mathml/tools/utils/misc.py

@@ -0,0 +1,33 @@
+from __future__ import print_function
+import os
+import progressbar
+import urllib2
+
+MathMLAssociationCopyright = "Copyright (c) 2016 MathML Association"
+
+def downloadWithProgressBar(url, outputDirectory="./", forceDownload=False):
+
+    baseName = os.path.basename(url)
+    fileName = os.path.join(outputDirectory, baseName)
+
+    if not forceDownload and os.path.exists(fileName):
+        return fileName
+
+    request = urllib2.urlopen(url)
+    totalSize = int(request.info().getheader('Content-Length').strip())
+    bar = progressbar.ProgressBar(maxval=totalSize).start()
+
+    chunkSize = 16 * 1024
+    downloaded = 0
+    print("Downloading %s" % url)
+    os.umask(0002)
+    with open(fileName, 'wb') as fp:
+        while True:
+            chunk = request.read(chunkSize)
+            downloaded += len(chunk)
+            bar.update(downloaded)
+            if not chunk: break
+            fp.write(chunk)
+        bar.finish()
+
+    return fileName

tests/wpt/web-platform-tests/mathml/tools/xHeight.py

@@ -0,0 +1,11 @@
+#!/usr/bin/python
+
+from utils import mathfont
+import fontforge
+
+v = mathfont.em / 2
+f = mathfont.create("xheight%d" % v)
+g = f.createChar(ord('x'))
+mathfont.drawRectangleGlyph(g, mathfont.em, v, 0)
+assert f.xHeight == v, "Bad x-height value!"
+mathfont.save(f)