gecko-dev/netwerk/test/unit/test_safeoutputstream.js

67 строки
2.1 KiB
JavaScript

/* -*- indent-tabs-mode: nil; js-indent-level: 4 -*- */
/* 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/. */
function write_atomic(file, str) {
var stream = Cc["@mozilla.org/network/atomic-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 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");
write_atomic(file, "First write: Atomic");
checkFile(file, "First write: Atomic");
write_atomic(file, "Second write: Atomic");
checkFile(file, "Second write: Atomic");
}