onbegin.svg - mozsearch

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This WPT test may be referenced by the following Test IDs:
- /svg/animations/onbegin.svg - WPT Dashboard Interop Dashboard

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<svg xmlns="http://www.w3.org/2000/svg">

  <title>'onbegin' event handler content attribute</title>

  <script xmlns="http://www.w3.org/1999/xhtml" src="/resources/testharness.js"/>

  <script xmlns="http://www.w3.org/1999/xhtml" src="/resources/testharnessreport.js"/>

  <rect width="0" height="100" fill="green">

    <animate id="anim" attributeName="visibility" to="visible" begin="0s" end="2s" fill="freeze"

             onbegin="document.getElementById('anim2').beginElement()"/>

    <set id="anim2" attributeName="width" to="100" begin="indefinite"/>

  </rect>

  <script>

    async_test(t => {

        let set = document.getElementById('anim2');

        set.addEventListener('beginEvent', t.step_func_done(function() {

            assert_equals(set.parentNode.getBBox().width, 100);

        }));

});

  </script>

</svg>