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Test Info:

<!doctype html>
<meta charset=utf-8>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<div id=log></div>
<div id=test>
<img id=x><img name=y><img id=z1 name=z2>
<img id=a><img id=a>
<img name=b><img name=b>
<img id=><img name=>
<input type=image name=input>
function assert_all(aAssertFunc, aCollection) {
for (var i = 0; i < aCollection.length; ++i) {
var div, images, c;
setup(function() {
div = document.getElementById("test");
var foreign =
div.appendChild(document.createElementNS("", "img"));
foreign.setAttribute("id", "f");
images = [], "img"));
c = document.images;
test(function() {
assert_equals(c.length, 10);
assert_array_equals(c, images);
assert_all(function (aElement) {
assert_equals(aElement.namespaceURI, XHTML);
}, c);
}, "document.images should contain all HTML img elements");
test(function() {
assert_equals(c.x, images[1]);
assert_equals(c.namedItem("x"), images[1]);
assert_true("x" in c, '"x" in c');
}, "img with id");
test(function() {
assert_equals(c.y, images[2]);
assert_equals(c.namedItem("y"), images[2]);
assert_true("y" in c, '"y" in c');
}, "img with name");
test(function() {
assert_equals(c.z1, images[3]);
assert_equals(c.namedItem("z1"), images[3]);
assert_true("z1" in c, '"z1" in c');
assert_equals(c.z2, images[3]);
assert_equals(c.namedItem("z2"), images[3]);
assert_true("z2" in c, '"z2" in c');
}, "img with id and name");
test(function() {
assert_equals(c.a, images[4]);
assert_equals(c.namedItem("a"), images[4]);
assert_true("a" in c, '"a" in c');
}, "Two img elements with the same id");
test(function() {
assert_equals(c.b, images[6]);
assert_equals(c.namedItem("b"), images[6]);
assert_true("b" in c, '"b" in c');
}, "Two img elements with the same name");
test(function() {
assert_equals(c.c, undefined);
assert_equals(c.namedItem("c"), null);
assert_false("c" in c, '"c" in c');
}, "Unknown name should not be in the collection");
test(function() {
assert_equals(c.f, undefined);
assert_equals(c.namedItem("f"), null);
assert_false("f" in c, '"f" in c');
}, "Foreign element should not be in the collection");
test(function() {
assert_equals(c.input, undefined);
assert_equals(c.namedItem("input"), null);
assert_false("input" in c, '"input" in c');
var input = div.getElementsByTagName("input")[0];
assert_all(function (aElement) {
assert_not_equals(aElement.namespaceURI, input);
}, c);
}, "Input elements should not be in the collection");
test(function() {
assert_equals(c[""], undefined);
assert_equals(c.namedItem(""), null);
assert_false("" in c, '"" in c');
}, "The empty string should not be in the collections");
test(function() {
var div = document.getElementById("test");
var imgs = document.images;
assert_true(imgs instanceof HTMLCollection);
assert_equals(imgs.length, 10);
var img = document.createElement("img");
assert_equals(imgs.length, 11);
assert_equals(imgs.length, 10);
}, "Document.images should be a live collection");