<!
DOCTYPE HTML>
<
html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=444722
-->
<
head>
<
title>Test for the ElementTraversal spec</
title>
<
script src=
"/tests/SimpleTest/SimpleTest.js"></
script>
<
link rel=
"stylesheet" type=
"text/css" href=
"/tests/SimpleTest/test.css" />
</
head>
<
body>
<a target=
"_blank" href=
"http://dev.w3.org/2006/webapi/ElementTraversal/publish/ElementTraversal.html">ElementTraversal</a>
<
div id=
"content" style=
"display: none">
<
span>
span</
span><
div>
div</
div>
<!--comment goes here-->
<p id=
"p1">p1</p>
text here
<p id=
"p2">p2</p>
<
span>a<
span>b</
span>c<
span>d</
span>e</
span>
</
div>
<
pre id=
"test">
<
script class=
"testbody" type=
"text/javascript">
var c = document.getElementById(
'content');
var cc = c.children;
var contents = [
"span",
"div",
"p1",
"p2",
"abcde"];
function testContent() {
for(i = 0, e = c.firstElementChild; e; e = e.nextElementSibling, i++) {
is(e.textContent, contents[i],
"wrong element contents");
is(e, c.children[i],
"wrong element");
is(e, c.children.item(i),
"wrong element");
}
is(i, contents.length,
"wrong number of element siblings");
is(i, c.childElementCount,
"wrong number of child elements");
is(i, c.children.length,
"wrong number of child elements");
// Nuke all elements to retest the child list.
// eslint-disable-next-line no-self-assign
c.innerHTML = c.innerHTML;
for(i--, e = c.lastElementChild; e; e = e.previousElementSibling, i--) {
is(e.textContent, contents[i],
"g element contents");
is(e, c.children[i],
"wrong element");
is(e, c.children.item(i),
"wrong element");
}
is(i, -1,
"wrong number of element siblings");
}
testContent();
is(cc.length, 5,
"wrong number of child elements");
is(c.childElementCount, 5,
"wrong number of child elements");
var p1 = document.getElementById(
'p1');
var p2 = document.getElementById(
'p2');
is(p1.nextElementSibling, p2,
"wrong sibling");
is(p2.previousElementSibling, p1,
"wrong sibling");
u = document.createElement(
'u');
u.textContent =
'u';
c.insertBefore(u, p2);
is(cc.length, 6,
"wrong number of child elements");
is(c.childElementCount, 6,
"wrong number of child elements");
is(p1.nextElementSibling, u,
"wrong sibling");
is(p2.previousElementSibling, u,
"wrong sibling");
contents.splice(3, 0,
"u");
testContent();
var p1 = document.getElementById(
'p1');
var p2 = document.getElementById(
'p2');
c.removeChild(p1);
c.removeChild(p2);
is(cc.length, 4,
"wrong number of child elements");
is(c.childElementCount, 4,
"wrong number of child elements");
contents.splice(2, 1);
contents.splice(3, 1);
testContent();
tw = document.createTreeWalker(document.documentElement,
NodeFilter.SHOW_ELEMENT,
null);
e = document.documentElement;
elemsTested = 0;
done = false;
while(!done) {
is(tw.currentNode, e,
"wrong element:" + tw.currentNode +
" != " + e);
elemsTested++;
if(tw.firstChild()) {
e = e.firstElementChild;
}
else {
while (!tw.nextSibling()) {
if (!tw.parentNode()) {
done = true;
break;
}
e = e.parentNode;
}
e = e.nextElementSibling;
}
}
is(elemsTested, document.getElementsByTagName(
"*").length,
"wrong number of elements");
</
script>
</
pre>
</
body>
</
html>
