node/test/parallel/test-fs-truncate-fd.js
Tobias Nießen 30fb4a015d test: add common.mustSucceed
PR-URL: https://github.com/nodejs/node/pull/35086
Reviewed-By: Ruy Adorno <ruyadorno@github.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2020-10-17 00:48:26 +02:00

28 lines
797 B
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const path = require('path');
const fs = require('fs');
const tmpdir = require('../common/tmpdir');
const tmp = tmpdir.path;
tmpdir.refresh();
const filename = path.resolve(tmp, 'truncate-file.txt');
fs.writeFileSync(filename, 'hello world', 'utf8');
const fd = fs.openSync(filename, 'r+');
const msg = 'Using fs.truncate with a file descriptor is deprecated.' +
' Please use fs.ftruncate with a file descriptor instead.';
common.expectWarning('DeprecationWarning', msg, 'DEP0081');
fs.truncate(fd, 5, common.mustSucceed(() => {
assert.strictEqual(fs.readFileSync(filename, 'utf8'), 'hello');
}));
process.once('beforeExit', () => {
fs.closeSync(fd);
fs.unlinkSync(filename);
console.log('ok');
});