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<!DOCTYPE html>
<title>HTMLCollection edge cases</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>
<div id="test"><img><img id=foo><img id=foo><img name="bar"></div>
<script>
setup(function() {
// Add some non-HTML elements in there to test what happens with those.
var container = document.getElementById("test");
var child = document.createElementNS("", "img");
child.setAttribute("id", "baz");
container.appendChild(child);
child = document.createElementNS("", "img");
child.setAttribute("name", "qux");
container.appendChild(child);
});
test(function() {
var container = document.getElementById("test");
var result = container.children.item("foo");
assert_true(result instanceof Element, "Expected an Element.");
assert_false(result.hasAttribute("id"), "Expected the IDless Element.")
})
test(function() {
var container = document.getElementById("test");
var list = container.children;
var result = [];
for (var p in list) {
if (list.hasOwnProperty(p)) {
result.push(p);
}
}
assert_array_equals(result, ['0', '1', '2', '3', '4', '5']);
result = Object.getOwnPropertyNames(list);
assert_array_equals(result, ['0', '1', '2', '3', '4', '5', 'foo', 'bar', 'baz']);
// Mapping of exposed names to their indices in the list.
var exposedNames = { 'foo': 1, 'bar': 3, 'baz': 4 };
for (var exposedName in exposedNames) {
assert_true(exposedName in list);
assert_true(list.hasOwnProperty(exposedName));
assert_equals(list[exposedName], list.namedItem(exposedName));
assert_equals(list[exposedName], list.item(exposedNames[exposedName]));
assert_true(list[exposedName] instanceof Element);
}
var unexposedNames = ['qux'];
for (var unexposedName of unexposedNames) {
assert_false(unexposedName in list);
assert_false(list.hasOwnProperty(unexposedName));
assert_equals(list[unexposedName], undefined);
assert_equals(list.namedItem(unexposedName), null);
}
});
</script>
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