textpath-href-path-mutated.html

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This WPT test may be referenced by the following Test IDs:
- /svg/text/scripted/textpath-href-path-mutated.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>Mutation of 'd' on a 'display: none' &lt;path> referenced by &lt;textPath></title>

<link rel="help" href="https://svgwg.org/svg2-draft/text.html#TextPathElementHrefAttribute">

<link rel="help" href="https://crbug.com/485900033">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<svg>

  <path id="path" d="M0,25h200" display="none"/>

  <text id="target" fill="green"><textPath href="#path">Text</textPath></text>

</svg>

<script>

  test(t => {

    const text = document.getElementById('target');

    assert_equals(text.getStartPositionOfChar(0).y, 25, 'before mutation');

    document.getElementById("path").setAttribute("d", "M0,50h200");

    assert_equals(text.getStartPositionOfChar(0).y, 50, 'after mutation');

});

</script>