gecko/netwerk/test/unit/test_safeoutputstream.js

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** 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 mozilla.org code.
*
* The Initial Developer of the Original Code is
* the Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Boris Zbarsky <bzbarsky@mit.edu> (original author)
*
* 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 ***** */
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
function write(file, str) {
var stream = Cc["@mozilla.org/network/safe-file-output-stream;1"]
.createInstance(Ci.nsIFileOutputStream);
stream.init(file, -1, -1, 0);
do {
var written = stream.write(str, str.length);
if (written == str.length)
break;
str = str.substring(written);
} while (1);
stream.QueryInterface(Ci.nsISafeOutputStream).finish();
stream.close();
}
function checkFile(file, str) {
var stream = Cc["@mozilla.org/network/file-input-stream;1"]
.createInstance(Ci.nsIFileInputStream);
stream.init(file, -1, -1, 0);
var scriptStream = Cc["@mozilla.org/scriptableinputstream;1"]
.createInstance(Ci.nsIScriptableInputStream);
scriptStream.init(stream);
do_check_eq(scriptStream.read(scriptStream.available()), str);
scriptStream.close();
}
function run_test()
{
var filename = "\u0913";
var file = Cc["@mozilla.org/file/directory_service;1"]
.getService(Ci.nsIProperties)
.get("TmpD", Ci.nsIFile);
file.append(filename);
write(file, "First write");
checkFile(file, "First write");
write(file, "Second write");
checkFile(file, "Second write");
}