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<head>
<title>Shadow DOM Test: Upper-boundary encapsulation: shadow root's DOM tree accessors</title>
<link rel="author" title="Sergey G. Grekhov" href="mailto:sgrekhov@unipro.ru">
<link rel="author" title="Mikhail Fursov" href="mailto:mfursov@unipro.ru">
<link rel="author" title="Yuta Kitamura" href="mailto:yutak@google.com">
<link rel="help" href="http://www.w3.org/TR/2013/WD-shadow-dom-20130514/#upper-boundary-encapsulation">
<meta name="assert" content="Upper-boundary encapsulation: The nodes are accessible using shadow root's DOM tree accessor methods.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../../testcommon.js"></script>
<link rel="stylesheet" href="/resources/testharness.css">
</head>
<body>
<div id="log"></div>
<script>
function assert_singleton_node_list(nodeList, expectedNode) {
    assert_equals(nodeList.length, 1);
    assert_equals(nodeList[0], expectedNode);
}

test(function () {
    var doc = document.implementation.createHTMLDocument('Test');
    var shadowRoot = doc.body.createShadowRoot();
    var image = doc.createElement('img');
    shadowRoot.appendChild(image);

    assert_singleton_node_list(shadowRoot.getElementsByTagName('img'), image);
},
    'Elements in a shadow tree should be accessible via shadow root\'s ' +
    'getElementsByTagName() DOM tree accessor.'
);

test(function () {
    var namespace = 'http://www.w3.org/1999/xhtml';
    var doc = document.implementation.createDocument(namespace, 'html');
    doc.documentElement.appendChild(doc.createElementNS(namespace, 'head'));
    var body = doc.createElementNS(namespace, 'body');
    var imageHost = doc.createElementNS(namespace, 'img');
    body.appendChild(imageHost);
    doc.documentElement.appendChild(body);

    var shadowRoot = body.createShadowRoot();
    var imageShadow = doc.createElementNS(namespace, 'img');
    shadowRoot.appendChild(imageShadow);

    assert_singleton_node_list(
        shadowRoot.getElementsByTagNameNS(namespace, 'img'), imageShadow);
},
    'Elements in a shadow tree should be accessible via shadow root\'s ' +
    'getElementsByTagNameNS() DOM tree accessor.'
);

test(function () {
    var doc = document.implementation.createHTMLDocument('Test');
    var shadowRoot = doc.body.createShadowRoot();
    var div = doc.createElement('div');
    div.className = 'div-class';
    shadowRoot.appendChild(div);

    assert_singleton_node_list(
        shadowRoot.getElementsByClassName('div-class'), div);
},
    'Elements in a shadow tree should be accessible via shadow root\'s ' +
    'getElementsByClassName() DOM tree accessor.'
);

test(function () {
    var doc = document.implementation.createHTMLDocument('Test');
    var shadowRoot = doc.body.createShadowRoot();
    var div = doc.createElement('div');
    div.id = 'div-id';
    shadowRoot.appendChild(div);

    assert_equals(shadowRoot.getElementById('div-id'), div);
},
    'Elements in a shadow tree should be accessible via shadow root\'s ' +
    'getElementById() DOM tree accessor.'
);
</script>
</body>
</html>