gecko/content/test/unit/test_normalize.js

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is DOM Node.normalize test code.
*
* The Initial Developer of the Original Code is
* Jeff Walden <jwalden+code@mit.edu>.
* Portions created by the Initial Developer are Copyright (C) 2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
function run_test()
{
/*
* NOTE: [i] is not allowed in this test, since it's done via classinfo and
* we don't have that in xpcshell; the workaround is item(i). Suck.
*/
init();
test_element();
// more tests would be nice here (such as for documents), but the primary
// uses of Node.normalize() are in test_element; stuff beyond this is either
// unimplemented or is unlikely to be used all that much within a browser
// DOM implementation
}
// TEST CODE
var doc; // cache for use in all tests
function init()
{
doc = ParseFile("empty_document.xml");
}
function test_element()
{
var x = doc.createElement("funk");
// one empty Text node
x.appendChild(doc.createTextNode(""));
do_check_eq(x.childNodes.length, 1);
x.normalize();
do_check_eq(x.childNodes.length, 0);
// multiple empty Text nodes
x.appendChild(doc.createTextNode(""));
x.appendChild(doc.createTextNode(""));
do_check_eq(x.childNodes.length, 2);
x.normalize();
do_check_eq(x.childNodes.length, 0);
// empty Text node followed by other Text node
x.appendChild(doc.createTextNode(""));
x.appendChild(doc.createTextNode("Guaraldi"));
do_check_eq(x.childNodes.length, 2);
x.normalize();
do_check_eq(x.childNodes.length, 1);
do_check_eq(x.childNodes.item(0).nodeValue, "Guaraldi");
// Text node followed by empty Text node
clearKids(x);
x.appendChild(doc.createTextNode("Guaraldi"));
x.appendChild(doc.createTextNode(""));
do_check_eq(x.childNodes.length, 2);
x.normalize();
do_check_eq(x.childNodes.item(0).nodeValue, "Guaraldi");
// Text node followed by empty Text node followed by other Node
clearKids(x);
x.appendChild(doc.createTextNode("Guaraldi"));
x.appendChild(doc.createTextNode(""));
x.appendChild(doc.createElement("jazzy"));
do_check_eq(x.childNodes.length, 3);
x.normalize();
do_check_eq(x.childNodes.length, 2);
do_check_eq(x.childNodes.item(0).nodeValue, "Guaraldi");
do_check_eq(x.childNodes.item(1).nodeName, "jazzy");
// Nodes are recursively normalized
clearKids(x);
var kid = doc.createElement("eit");
kid.appendChild(doc.createTextNode(""));
x.appendChild(doc.createTextNode("Guaraldi"));
x.appendChild(doc.createTextNode(""));
x.appendChild(kid);
do_check_eq(x.childNodes.length, 3);
do_check_eq(x.childNodes.item(2).childNodes.length, 1);
x.normalize();
do_check_eq(x.childNodes.length, 2);
do_check_eq(x.childNodes.item(0).nodeValue, "Guaraldi");
do_check_eq(x.childNodes.item(1).childNodes.length, 0);
}
// UTILITY FUNCTIONS
function clearKids(node)
{
while (node.hasChildNodes())
node.removeChild(node.childNodes.item(0));
}