test_bug1544209.html

Enable keyboard shortcuts

<!DOCTYPE HTML>

<script src="/tests/SimpleTest/SimpleTest.js"></script>

<link rel="stylesheet" href="/tests/SimpleTest/test.css">

<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1544209">Mozilla Bug 1544209</a>

<svg height="800px" width="800px">

    <text transform="scale(3,3)" id="a" x="20px" y="20px">ABC<tspan id="b">ABC</tspan></text>

</svg>

<script type="application/javascript">

  let a = document.getElementById("a"),

      b = document.getElementById("b");

  let wtext = a.getBoundingClientRect().width,

      wtspan = b.getBoundingClientRect().width;

  ok(wtext >= wtspan, "<tspan> should not be wider than <text>");

  isfuzzy((wtext - wtspan) / wtext, 0.5, 0.1, "<tspan> should be approximately half of the <text> width");

</script>