
</head>
<body>

  <yo-list></yo-list>

  <script>

    document.addEventListener('polymer-ready', function() {
      // Test a property
      var el = document.querySelector('yo-list');
      el.items.push('Foo');

      // Data bindings will stamp out new DOM asynchronously
      // so wait to check for updates
      setTimeout(function() {
        var listItems = el.shadowRoot.querySelectorAll('li');
        assert.equal(el.items.length, listItems.length);

        // IMPORTANT:
        // Make sure to c