test_NodeIterator_mutations_2.html

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<html>

<!-- NodeIterator mutation tests, 2.

     Originally part of WebKit, Mochi-ified by Zack Weinberg.

     This file based on node-iterator-00[...].html from

       http://svn.webkit.org/repository/webkit/trunk/LayoutTests/traversal/

-->

<head>

 <title>DOM Traversal: NodeIterator: Mutations (2/x)</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css">

</head>

<p id="display"></p>

<div id="content" style="display: none">

</div>

<pre id="test">

<script class="testbody" type="text/javascript">

  function resetContent() {

    var content = $('content');

    content.innerHTML = ('<span id="A"><\/span><span id="B"><\/span>'

			 + '<span id="C"><\/span><span id="D"><\/span>'

			 + '<span id="E"><\/span><span id="F"><\/span>'

			 + '<span id="G"><\/span><span id="H"><\/span>'

			 + '<span id="I"><\/span>');

    return content;

  function makeSpan(id) {

    var e = document.createElement('span');

    e.id = id;

    return e;

  function testNodeFilter(n) {

    if (n.tagName == 'SPAN')

      return NodeFilter.FILTER_ACCEPT;

    return NodeFilter.FILTER_SKIP;

  function checkseq(it, root, expect) {

    var checkIt = document.createNodeIterator(root, NodeFilter.SHOW_ELEMENT,

					      testNodeFilter);

    var printedPointer = (it.referenceNode == undefined);

    var string = '';

    var node;

    while ((node = checkIt.nextNode()) != null) {

      if (!printedPointer && it.referenceNode == node) {

        printedPointer = true;

	var s = '[' + node.id + '] ';

          if (it.pointerBeforeReferenceNode)

            string += "* " + s;

          else

            string += s + "* ";

      } else {

        string += node.id + " ";

    is(string.slice(0, -1), expect, "sequence check");

  // first a basic sanity check [node-iterator-001]

  (function(){

     var root = resetContent();

     var it = document.createNodeIterator(root, NodeFilter.SHOW_ELEMENT,

					  testNodeFilter);

     checkseq(it, root, 'A B C D E F G H I');

     it.nextNode();

     checkseq(it, root, '[A] * B C D E F G H I');

     it.previousNode();

     checkseq(it, root, '* [A] B C D E F G H I');

     it.previousNode();

     checkseq(it, root, '* [A] B C D E F G H I');

  })();

  // Mutations that should not move the iterator [node-iterator-002]

  (function(){

     var root = resetContent();

     var it = document.createNodeIterator(root, NodeFilter.SHOW_ELEMENT,

					  testNodeFilter);

     for (var i = 0; i < 4; i++)

       it.nextNode();

     checkseq(it, root, 'A B C [D] * E F G H I');

     root.removeChild($('E'));

     checkseq(it, root, 'A B C [D] * F G H I');

     var X = makeSpan('X');

     root.insertBefore(X, $('F'));

     checkseq(it, root, 'A B C [D] * X F G H I');

     var I = $('I');

     root.removeChild(I);

     root.insertBefore(I, X);

     checkseq(it, root, 'A B C [D] * I X F G H');

  })();

  // 002 complete

  /* Template

  (function(){

     var root = resetContent();

     var it = document.createNodeIterator(root, NodeFilter.SHOW_ELEMENT,

					  testNodeFilter);

  })();

*/

</script>

</pre>

</body>

</html>