blob: b24a2401e80278ddb7d052201a8c65fd70371111 [file] [log] [blame]
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<html>
<head>
<script src="../resources/js-test-pre.js"></script>
</head>
<body>
<p id="description"></p>
<div id="console"></div>
<script>
description("Test of behavior NodeIterator when nodes are removed, from Acid3.");
var iframe = document.createElement("iframe");
iframe.setAttribute("src", "about:blank");
document.body.appendChild(iframe);
var doc = iframe.contentDocument;
for (var i = doc.documentElement.childNodes.length-1; i >= 0; i -= 1)
doc.documentElement.removeChild(doc.documentElement.childNodes[i]);
doc.documentElement.appendChild(doc.createElement('head'));
doc.documentElement.firstChild.appendChild(doc.createElement('title'));
doc.documentElement.appendChild(doc.createElement('body'));
// test 2: Removing nodes during iteration
var count = 0;
var t1 = doc.body.appendChild(doc.createElement('t1'));
var t2 = doc.body.appendChild(doc.createElement('t2'));
var t3 = doc.body.appendChild(doc.createElement('t3'));
var t4 = doc.body.appendChild(doc.createElement('t4'));
var expect = function(n, node1, node2) {
count += 1;
shouldBe("count", "" + n);
nodea = node1;
nodeb = node2;
shouldBe("nodea", "nodeb");
};
var callCount = 0;
var filterFunctions = [
function (node) { expect(1, node, doc.body); return true; }, // filter 0
function (node) { expect(3, node, t1); return true; }, // filter 1
function (node) { expect(5, node, t2); return true; }, // filter 2
function (node) { expect(7, node, t3); doc.body.removeChild(t4); return true; }, // filter 3
function (node) { expect(9, node, t4); return true; }, // filter 4
function (node) { expect(11, node, t4); doc.body.removeChild(t4); return 2 /* REJECT */; }, // filter 5
function (node) { expect(12, node, t3); return true; }, // filter 6
function (node) { expect(14, node, t2); doc.body.removeChild(t2); return true; }, // filter 7
function (node) { expect(16, node, t1); return true; }, // filter 8
];
var i = doc.createNodeIterator(doc.documentElement.lastChild, 0xFFFFFFFF, function (node) { return filterFunctions[callCount++](node); }, true);
// * B 1 2 3 4
expect(2, i.nextNode(), doc.body); // filter 0
// [B] * 1 2 3 4
expect(4, i.nextNode(), t1); // filter 1
// B [1] * 2 3 4
expect(6, i.nextNode(), t2); // filter 2
// B 1 [2] * 3 4
expect(8, i.nextNode(), t3); // filter 3
// B 1 2 [3] *
doc.body.appendChild(t4);
// B 1 2 [3] * 4
expect(10, i.nextNode(), t4); // filter 4
// B 1 2 3 [4] *
expect(13, i.previousNode(), t3); // filters 5, 6
// B 1 2 3 * (4) // filter 5
// B 1 2 [3] * // between 5 and 6
// B 1 2 * (3) // filter 6
// B 1 2 * [3]
expect(15, i.previousNode(), t2); // filter 7
// B 1 * (2) [3]
// -- spec says "For instance, if a NodeFilter removes a node
// from a document, it can still accept the node, which
// means that the node may be returned by the NodeIterator
// or TreeWalker even though it is no longer in the subtree
// being traversed."
// -- but it also says "If changes to the iterated list do not
// remove the reference node, they do not affect the state
// of the NodeIterator."
// B 1 * [3]
expect(17, i.previousNode(), t1); // filter 8
// B [1] * 3
document.body.removeChild(iframe);
var successfullyParsed = true;
</script>
<script src="../resources/js-test-post.js"></script>
</body>
</html>