gecko-dev/content/test/unit/head_content.js

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JavaScript

/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
const I = Components.interfaces;
const C = Components.classes;
const nsILocalFile = I.nsILocalFile;
const nsIProperties = I.nsIProperties;
const nsIFileInputStream = I.nsIFileInputStream;
const nsIInputStream = I.nsIInputStream;
const nsIDOMParser = I.nsIDOMParser;
const nsIDOMSerializer = I.nsIDOMSerializer;
const nsIDOMDocument = I.nsIDOMDocument;
const nsIDOMElement = I.nsIDOMElement;
const nsIDOMNode = I.nsIDOMNode;
const nsIDOMCharacterData = I.nsIDOMCharacterData;
const nsIDOMAttr = I.nsIDOMAttr;
const nsIDOMNodeList = I.nsIDOMNodeList;
const nsIDOMXULElement = I.nsIDOMXULElement;
const nsIDOMProcessingInstruction = I.nsIDOMProcessingInstruction;
function DOMParser() {
var parser = C["@mozilla.org/xmlextras/domparser;1"].createInstance(nsIDOMParser);
parser.init();
return parser;
}
var __testsDirectory = null;
function ParseFile(file) {
if (typeof(file) == "string") {
if (!__testsDirectory) {
__testsDirectory = do_get_cwd();
}
var fileObj = __testsDirectory.clone();
fileObj.append(file);
file = fileObj;
}
do_check_eq(file instanceof nsILocalFile, true);
var fileStr = C["@mozilla.org/network/file-input-stream;1"]
.createInstance(nsIFileInputStream);
// Init for readonly reading
fileStr.init(file, 0x01, 0400, nsIFileInputStream.CLOSE_ON_EOF);
return ParseXML(fileStr);
}
function ParseXML(data) {
if (typeof(data) == "string") {
return DOMParser().parseFromString(data, "application/xml");
}
do_check_eq(data instanceof nsIInputStream, true);
return DOMParser().parseFromStream(data, "UTF-8", data.available(),
"application/xml");
}
function DOMSerializer() {
return C["@mozilla.org/xmlextras/xmlserializer;1"]
.createInstance(nsIDOMSerializer);
}
function SerializeXML(node) {
return DOMSerializer().serializeToString(node);
}
function roundtrip(obj) {
if (typeof(obj) == "string") {
return SerializeXML(ParseXML(obj));
}
do_check_eq(obj instanceof nsIDOMNode, true);
return ParseXML(SerializeXML(obj));
}
function do_compare_attrs(e1, e2) {
const xmlns = "http://www.w3.org/2000/xmlns/";
var a1 = e1.attributes;
var a2 = e2.attributes;
for (var i = 0; i < a1.length; ++i) {
var att = a1.item(i);
// Don't test for namespace decls, since those can just sorta be
// scattered about
if (att.namespaceURI != xmlns) {
var att2 = a2.getNamedItemNS(att.namespaceURI, att.localName);
if (!att2) {
do_throw("Missing attribute with namespaceURI '" + att.namespaceURI +
"' and localName '" + att.localName + "'");
}
do_check_eq(att.QueryInterface(nsIDOMAttr).value,
att2.QueryInterface(nsIDOMAttr).value);
}
}
}
function do_check_equiv(dom1, dom2) {
do_check_eq(dom1.nodeType, dom2.nodeType);
// There's no classinfo around, so we'll need to do some QIing to
// make sure the right interfaces are flattened as needed.
switch (dom1.nodeType) {
case nsIDOMNode.PROCESSING_INSTRUCTION_NODE:
do_check_eq(dom1.QueryInterface(nsIDOMProcessingInstruction).target,
dom2.QueryInterface(nsIDOMProcessingInstruction).target);
do_check_eq(dom1.data, dom2.data);
case nsIDOMNode.TEXT_NODE:
case nsIDOMNode.CDATA_SECTION_NODE:
case nsIDOMNode.COMMENT_NODE:
do_check_eq(dom1.QueryInterface(nsIDOMCharacterData).data,
dom2.QueryInterface(nsIDOMCharacterData).data);
break;
case nsIDOMNode.ELEMENT_NODE:
do_check_eq(dom1.namespaceURI, dom2.namespaceURI);
do_check_eq(dom1.localName, dom2.localName);
// Compare attrs in both directions -- do_compare_attrs does a
// subset check.
do_compare_attrs(dom1, dom2);
do_compare_attrs(dom2, dom1);
// Fall through
case nsIDOMNode.DOCUMENT_NODE:
do_check_eq(dom1.childNodes.length, dom2.childNodes.length);
for (var i = 0; i < dom1.childNodes.length; ++i) {
do_check_equiv(dom1.childNodes.item(i), dom2.childNodes.item(i));
}
break;
}
}
function do_check_serialize(dom) {
do_check_equiv(dom, roundtrip(dom));
}
function Pipe() {
var p = C["@mozilla.org/pipe;1"].createInstance(I.nsIPipe);
p.init(false, false, 0, 0xffffffff, null);
return p;
}
function ScriptableInput(arg) {
if (arg instanceof I.nsIPipe) {
arg = arg.inputStream;
}
var str = C["@mozilla.org/scriptableinputstream;1"].
createInstance(I.nsIScriptableInputStream);
str.init(arg);
return str;
}