surrogate-pair-attribute-positions.html

<!DOCTYPE html>
<svg width="200" height="100">
  <style>
  @font-face {
    font-family: MyFont;
    src: url(../../third_party/adobe-fonts/CSSFWOrientationTest.otf);
  }
  </style>
  <text font-family="MyFont" font-size="50" x="0 100" y="50">&#x1100F;<tspan>&#x1100F;</tspan></text>
</svg>

chromium/third_party/blink/web_tests/svg/text/surrogate-pair-attribute-positions.html