<!DOCTYPE html>
<html>
<head>
<meta name='author' title='Google' href='http://www.google.com'>
<meta name='assert' content='document attributes that returns HTMLCollection should not expose nodes in shadow tree.'>
<link rel='help' href='https://w3c.github.io/webcomponents/spec/shadow/'>
<script src='/resources/testharness.js'></script>
<script src='/resources/testharnessreport.js'></script>
</head>
<body>
<template id='collection-template'>
  <img>
  <embed></embed>
  <applet></applet>
  <object type='application/x-java-applet'></object>
  <a href='http://example.com'></a>
  <a name='test'></a>
  <form name='test'></form>
  <script></script>
</template>
<div id='doc'></div>
<div id='host-open'></div>
<div id='host-closed'></div>
</body>
<script>
'use strict';

function fillTemplate(root, prefix) {
    var tmpl = document.getElementById('collection-template');
    root.appendChild(document.importNode(tmpl.content, true));
    for (var i = 0; i < root.childNodes.length; ++i) {
        var el = root.childNodes[i];
        if (el.nodeType != 1)
            continue;
        el.id = prefix + el.tagName.toLowerCase();
    }
}

// Construct subtree with 'doc-*' ids.
var doc = document.getElementById('doc');
fillTemplate(doc, 'doc-');

// Construct shadow subtree with 'shadow-*' ids.
var host = document.getElementById('host-open');
var shadow = host.attachShadow({mode: 'open'});
fillTemplate(shadow, 'shadow-open-');

host = document.getElementById('host-closed');
shadow = host.attachShadow({mode: 'closed'});
fillTemplate(shadow, 'shadow-closed-');

function testCollection(collection) {
    var elements = document[collection];
    assert_greater_than(elements.length, 0, 'document.' + collection + ' should have at least 1 element.');
    for (var i = 0; i < elements.length; ++i) {
        if (elements[i].id) {
            assert_equals(elements[i].id.indexOf('shadow-'), -1, 'document.' + collection + ' should not contain elements in shadow tree.');
        }
    }
}

var testParams = [
    ['document.scripts should not contain shadow nodes', 'scripts'],
    ['document.all should not contain shadow nodes', 'all'],
    ['document.forms should not contain shadow nodes', 'forms'],
    ['document.images should not contain shadow nodes', 'images'],
    ['document.links should not contain shadow nodes', 'links'],
    ['document.anchors should not contain shadow nodes', 'anchors'],
    ['document.embeds should not contain shadow nodes', 'embeds'],
    ['document.plugins should not contain shadow nodes', 'plugins']];

generate_tests(testCollection, testParams);

test(() => {
  assert_equals(document.applets.length, 0);
}, 'document.applets should not contain any nodes');

</script>
</html>
