зеркало из https://github.com/mozilla/gecko-dev.git
101 строка
2.9 KiB
JavaScript
101 строка
2.9 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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function run_test() {
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/*
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* NOTE: [i] is not allowed in this test, since it's done via classinfo and
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* we don't have that in xpcshell; the workaround is item(i). Suck.
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*/
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init();
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test_element();
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// more tests would be nice here (such as for documents), but the primary
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// uses of Node.normalize() are in test_element; stuff beyond this is either
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// unimplemented or is unlikely to be used all that much within a browser
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// DOM implementation
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}
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// TEST CODE
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var doc; // cache for use in all tests
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function init() {
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doc = ParseFile("empty_document.xml");
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}
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function test_element() {
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var x = doc.createElement("funk");
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// one empty Text node
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x.appendChild(doc.createTextNode(""));
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Assert.equal(x.childNodes.length, 1);
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x.normalize();
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Assert.equal(x.childNodes.length, 0);
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// multiple empty Text nodes
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x.appendChild(doc.createTextNode(""));
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x.appendChild(doc.createTextNode(""));
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Assert.equal(x.childNodes.length, 2);
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x.normalize();
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Assert.equal(x.childNodes.length, 0);
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// empty Text node followed by other Text node
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x.appendChild(doc.createTextNode(""));
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x.appendChild(doc.createTextNode("Guaraldi"));
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Assert.equal(x.childNodes.length, 2);
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x.normalize();
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Assert.equal(x.childNodes.length, 1);
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Assert.equal(x.childNodes.item(0).nodeValue, "Guaraldi");
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// Text node followed by empty Text node
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clearKids(x);
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x.appendChild(doc.createTextNode("Guaraldi"));
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x.appendChild(doc.createTextNode(""));
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Assert.equal(x.childNodes.length, 2);
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x.normalize();
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Assert.equal(x.childNodes.item(0).nodeValue, "Guaraldi");
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// Text node followed by empty Text node followed by other Node
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clearKids(x);
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x.appendChild(doc.createTextNode("Guaraldi"));
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x.appendChild(doc.createTextNode(""));
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x.appendChild(doc.createElement("jazzy"));
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Assert.equal(x.childNodes.length, 3);
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x.normalize();
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Assert.equal(x.childNodes.length, 2);
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Assert.equal(x.childNodes.item(0).nodeValue, "Guaraldi");
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Assert.equal(x.childNodes.item(1).nodeName, "jazzy");
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// Nodes are recursively normalized
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clearKids(x);
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var kid = doc.createElement("eit");
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kid.appendChild(doc.createTextNode(""));
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x.appendChild(doc.createTextNode("Guaraldi"));
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x.appendChild(doc.createTextNode(""));
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x.appendChild(kid);
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Assert.equal(x.childNodes.length, 3);
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Assert.equal(x.childNodes.item(2).childNodes.length, 1);
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x.normalize();
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Assert.equal(x.childNodes.length, 2);
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Assert.equal(x.childNodes.item(0).nodeValue, "Guaraldi");
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Assert.equal(x.childNodes.item(1).childNodes.length, 0);
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}
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// UTILITY FUNCTIONS
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function clearKids(node) {
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while (node.hasChildNodes()) {
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node.removeChild(node.childNodes.item(0));
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}
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}
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