resource-selection-pointer-insert-br.html

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This WPT test may be referenced by the following Test IDs:
- /html/semantics/embedded-content/media-elements/loading-the-media-resource/resource-selection-pointer-insert-br.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>pointer updates (adding br elements)</title>

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

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

<div id=log></div>

<script>

var a = 0;

var b = 0;

var c = 0;

</script>

<video

 ><source onerror=a++

 ><source onerror=b++ src='resources/delayed-broken-video.py'

 ><source onerror=c++

 ></video

<script>

async_test(function(t) {

  var video = document.querySelector('video');

  // add br elements

  var br = document.createElement('br');

  video.insertBefore(br, video.querySelector('[onerror="a++"]'));

  video.insertBefore(br.cloneNode(false), video.querySelector('[onerror="b++"]'));

  video.insertBefore(br.cloneNode(false), video.querySelector('[onerror="c++"]'));

  video.appendChild(br.cloneNode(false));

  window.onload = t.step_func(function() {

    assert_equals(a, 1, 'error events on a');

    assert_equals(b, 1, 'error events on b');

    assert_equals(c, 1, 'error events on c');

    t.done();

});

});

</script>