chromium/third_party/blink/web_tests/external/wpt/css/css-text/line-breaking/line-breaking-031.html

<!doctype html>
<html>
<meta charset="utf-8">
<title>CSS Text — line breaking at element boundary with atomic inlines</title>
<meta name=assert content="For soft wrap opportunities defined by the boundary between two characters or atomic inlines, the white-space property on the nearest common ancestor of the two characters controls breaking">
<link rel=help href="https://www.w3.org/TR/css-text-3/#line-break-details">
<link rel=match href="reference/line-breaking-030-ref.html">
<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style>
div {
    color:green;
    width: 1em;
    line-height: 1em;
    font-family: Ahem;
    white-space: normal;
    font-size: 60px;
}
span{
    white-space: pre;
}
img{
    vertical-align: bottom;
}
.container {
    position: relative;
}
.fail {
    color: red;
    position: absolute;
    left: 0;
    top: 1em;
    z-index: -1;
}
</style>

<p>Test passes is there is a green rectangle and no red.

<div class=container>
    <span>X</span><span><img src="../../support/60x60-green.png"></span>
    <div class=fail>X</div>
</div>