mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
115 lines
2.7 KiB
115 lines
2.7 KiB
'use strict';
|
|
var common = require('../common');
|
|
var assert = require('assert');
|
|
var path = require('path');
|
|
var fs = require('fs');
|
|
var tmp = common.tmpDir;
|
|
var filename = path.resolve(tmp, 'truncate-file.txt');
|
|
var data = new Buffer(1024 * 16);
|
|
data.fill('x');
|
|
|
|
var stat;
|
|
|
|
// truncateSync
|
|
fs.writeFileSync(filename, data);
|
|
stat = fs.statSync(filename);
|
|
assert.equal(stat.size, 1024 * 16);
|
|
|
|
fs.truncateSync(filename, 1024);
|
|
stat = fs.statSync(filename);
|
|
assert.equal(stat.size, 1024);
|
|
|
|
fs.truncateSync(filename);
|
|
stat = fs.statSync(filename);
|
|
assert.equal(stat.size, 0);
|
|
|
|
// ftruncateSync
|
|
fs.writeFileSync(filename, data);
|
|
var fd = fs.openSync(filename, 'r+');
|
|
|
|
stat = fs.statSync(filename);
|
|
assert.equal(stat.size, 1024 * 16);
|
|
|
|
fs.ftruncateSync(fd, 1024);
|
|
stat = fs.statSync(filename);
|
|
assert.equal(stat.size, 1024);
|
|
|
|
fs.ftruncateSync(fd);
|
|
stat = fs.statSync(filename);
|
|
assert.equal(stat.size, 0);
|
|
|
|
fs.closeSync(fd);
|
|
|
|
// async tests
|
|
var success = 0;
|
|
testTruncate(function(er) {
|
|
if (er) throw er;
|
|
success++;
|
|
testFtruncate(function(er) {
|
|
if (er) throw er;
|
|
success++;
|
|
});
|
|
});
|
|
|
|
process.on('exit', function() {
|
|
assert.equal(success, 2);
|
|
console.log('ok');
|
|
});
|
|
|
|
function testTruncate(cb) {
|
|
fs.writeFile(filename, data, function(er) {
|
|
if (er) return cb(er);
|
|
fs.stat(filename, function(er, stat) {
|
|
if (er) return cb(er);
|
|
assert.equal(stat.size, 1024 * 16);
|
|
|
|
fs.truncate(filename, 1024, function(er) {
|
|
if (er) return cb(er);
|
|
fs.stat(filename, function(er, stat) {
|
|
if (er) return cb(er);
|
|
assert.equal(stat.size, 1024);
|
|
|
|
fs.truncate(filename, function(er) {
|
|
if (er) return cb(er);
|
|
fs.stat(filename, function(er, stat) {
|
|
if (er) return cb(er);
|
|
assert.equal(stat.size, 0);
|
|
cb();
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
|
|
function testFtruncate(cb) {
|
|
fs.writeFile(filename, data, function(er) {
|
|
if (er) return cb(er);
|
|
fs.stat(filename, function(er, stat) {
|
|
if (er) return cb(er);
|
|
assert.equal(stat.size, 1024 * 16);
|
|
|
|
fs.open(filename, 'w', function(er, fd) {
|
|
if (er) return cb(er);
|
|
fs.ftruncate(fd, 1024, function(er) {
|
|
if (er) return cb(er);
|
|
fs.stat(filename, function(er, stat) {
|
|
if (er) return cb(er);
|
|
assert.equal(stat.size, 1024);
|
|
|
|
fs.ftruncate(fd, function(er) {
|
|
if (er) return cb(er);
|
|
fs.stat(filename, function(er, stat) {
|
|
if (er) return cb(er);
|
|
assert.equal(stat.size, 0);
|
|
fs.close(fd, cb);
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|