midword-break-before-surrogate-pair.html

<head>
    <style type="text/css">
        @font-face {
        font-family: notosymbol;
        src:
        url("../../third_party/NotoSansSymbol/NotoSansSymbols-Regular-u1d49e,1f1ef.ttf");
        }

        .breakbox {
        font-family: notosymbol;
        word-break: break-all;
        border: solid blue;
        font-size: 36px;
        width: 5em; }
    </style>
</head>
<p>The following box should break the sequence of symbols at the 5 character mark
and not overflow the blue box. This is because U+1D49E has a general category(gC) of Letter, for which break-all applies.</p>
<div class="breakbox">
    &#x1d49e;&#x1d49e;&#x1d49e;&#x1d49e;&#x1d49e;&#x1d49e;&#x1d49e;&#x1d49e;&#x1d49e;&#x1d49e;
</div>
<p>The following box should break between a pair of regional indicators
( U+1F1EF and U+1F1F5 ) because
they (as a pair) act like Ideographs (LB=ID) whether or not 'word-break' is break-all.
</p>
<div class="breakbox">
    &#x1f1ef;&#x1f1f5;&#x1f1ef;&#x1f1f5;&#x1f1ef;&#x1f1f5;&#x1f1ef;&#x1f1f5;&#x1f1ef;&#x1f1f5;&#x1f1ef;&#x1f1f5;&#x1f1ef;&#x1f1f5;&#x1f1ef;&#x1f1f5;
</div>
<!--
     TODO(jshin): Add a test string made of non-BMP characters that would
     overflow even with 'word-break: break-all'. LB=IS or LB=NS would work.
     https://bugs.chromium.org/p/chromium/issues/detail?id=661320
-->
chromium/third_party/blink/web_tests/virtual/text-antialias/midword-break-before-surrogate-pair.html
