LayoutTests/mathml/radical-fallback.html

<!DOCTYPE html>
<html>
  <head>
    <title>Radical fallback</title>
    <meta charset="utf-8"/>
  </head>
  <body>

    <!-- This pixel test verifies stretching of radical operators with either
         the default MathML font or a sans-serif font. The latter is likely
         to require a fallback mechanism as sans-serif are generally not math
         fonts and so can not stretch radicals. -->

    <p>Large LTR radicals:
      <math>
        <msqrt><mspace height="5em"/></msqrt>
        <msqrt style="font-family: sans-serif"><mspace height="5em"/></msqrt>
      </math>
    </p>

    <p>Large RTL radicals:
      <math dir="rtl">
        <msqrt><mspace height="5em"/></msqrt>
        <msqrt style="font-family: sans-serif"><mspace height="5em"/></msqrt>
      </math>
    </p>

  </body>
</html>