switching-animated-target-to-unknown-element.html

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This WPT test may be referenced by the following Test IDs:
- /svg/animations/switching-animated-target-to-unknown-element.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Switching animated target to an unknown element</title>

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

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

<svg height="0">

  <path id="path">

    <animateMotion/>

  </path>

  <unknown id="unknown"></unknown>

</svg>

<script>

  async_test(t => {

    let path = document.getElementById("path");

    let anim = path.firstElementChild;

    t.step_timeout(() => {

      path.appendChild(document.createElementNS('http://www.w3.org/2000/svg', 'animateMotion'));

      anim.setAttributeNS('http://www.w3.org/1999/xlink', 'xlink:href', '#unknown');

      requestAnimationFrame(t.step_func(() => {

        requestAnimationFrame(t.step_func_done());

      }));

});

});

</script>