<!doctype html>
<meta charset=utf-8>
<title>KeyframeEffect.composite</title>
<link rel="help"
      href="https://drafts.csswg.org/web-animations/#dom-keyframeeffect-composite">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../../testcommon.js"></script>
<body>
<div id="log"></div>
<script>
'use strict';

test(t => {
  const anim = createDiv(t).animate(null);
  assert_equals(anim.effect.composite, 'replace',
                'The defaul