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chromium/third_party/blink/web_tests/virtual/text-antialias/emoji-font-weight-mac.html 

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <title>'GRINNING FACE WITH SMILING EYES' (U+1F601)</title>
    </head>
    <body>
        <h1 style="font-weight: bold;">&#x1f601;😁😜</h1>
        <p>There should be three giant smiling emojis above.</p>
    </body>
</html>