gecko-dev/xpcom/tests/unit/test_localfile.js

152 строки
3.9 KiB
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 Cr = Components.results;
const CC = Components.Constructor;
const Ci = Components.interfaces;
const MAX_TIME_DIFFERENCE = 2500;
const MILLIS_PER_DAY = 1000 * 60 * 60 * 24;
var LocalFile = CC("@mozilla.org/file/local;1", "nsILocalFile", "initWithPath");
function run_test()
{
test_toplevel_parent_is_null();
test_normalize_crash_if_media_missing();
test_file_modification_time();
test_directory_modification_time();
test_diskSpaceAvailable();
}
function test_toplevel_parent_is_null()
{
try
{
var lf = new LocalFile("C:\\");
// not required by API, but a property on which the implementation of
// parent == null relies for correctness
do_check_true(lf.path.length == 2);
do_check_true(lf.parent === null);
}
catch (e)
{
// not Windows
do_check_eq(e.result, Cr.NS_ERROR_FILE_UNRECOGNIZED_PATH);
}
}
function test_normalize_crash_if_media_missing()
{
const a="a".charCodeAt(0);
const z="z".charCodeAt(0);
for (var i = a; i <= z; ++i)
{
try
{
LocalFile(String.fromCharCode(i)+":.\\test").normalize();
}
catch (e)
{
}
}
}
// Tests that changing a file's modification time is possible
function test_file_modification_time()
{
var file = do_get_profile();
file.append("testfile");
// Should never happen but get rid of it anyway
if (file.exists())
file.remove(true);
var now = Date.now();
file.create(Ci.nsIFile.NORMAL_FILE_TYPE, 0644);
do_check_true(file.exists());
// Modification time may be out by up to 2 seconds on FAT filesystems. Test
// with a bit of leeway, close enough probably means it is correct.
var diff = Math.abs(file.lastModifiedTime - now);
do_check_true(diff < MAX_TIME_DIFFERENCE);
var yesterday = now - MILLIS_PER_DAY;
file.lastModifiedTime = yesterday;
diff = Math.abs(file.lastModifiedTime - yesterday);
do_check_true(diff < MAX_TIME_DIFFERENCE);
var tomorrow = now - MILLIS_PER_DAY;
file.lastModifiedTime = tomorrow;
diff = Math.abs(file.lastModifiedTime - tomorrow);
do_check_true(diff < MAX_TIME_DIFFERENCE);
var bug377307 = 1172950238000;
file.lastModifiedTime = bug377307;
diff = Math.abs(file.lastModifiedTime - bug377307);
do_check_true(diff < MAX_TIME_DIFFERENCE);
file.remove(true);
}
// Tests that changing a directory's modification time is possible
function test_directory_modification_time()
{
var dir = do_get_profile();
dir.append("testdir");
// Should never happen but get rid of it anyway
if (dir.exists())
dir.remove(true);
var now = Date.now();
dir.create(Ci.nsIFile.DIRECTORY_TYPE, 0755);
do_check_true(dir.exists());
// Modification time may be out by up to 2 seconds on FAT filesystems. Test
// with a bit of leeway, close enough probably means it is correct.
var diff = Math.abs(dir.lastModifiedTime - now);
do_check_true(diff < MAX_TIME_DIFFERENCE);
var yesterday = now - MILLIS_PER_DAY;
dir.lastModifiedTime = yesterday;
diff = Math.abs(dir.lastModifiedTime - yesterday);
do_check_true(diff < MAX_TIME_DIFFERENCE);
var tomorrow = now - MILLIS_PER_DAY;
dir.lastModifiedTime = tomorrow;
diff = Math.abs(dir.lastModifiedTime - tomorrow);
do_check_true(diff < MAX_TIME_DIFFERENCE);
dir.remove(true);
}
function test_diskSpaceAvailable()
{
let file = do_get_profile();
file.QueryInterface(Ci.nsILocalFile);
let bytes = file.diskSpaceAvailable;
do_check_true(bytes > 0);
file.append("testfile");
if (file.exists())
file.remove(true);
file.create(Ci.nsIFile.NORMAL_FILE_TYPE, parseInt("644", 8));
bytes = file.diskSpaceAvailable;
do_check_true(bytes > 0);
file.remove(true);
}