nodejs/test/parallel/test-buffer-zero-fill-cli.js
Filip Skokan daced4ab98
buffer: move SlowBuffer to EOL
This commits reverts da69d13623e6c9ec8692d8002297e63cf2f656d8

PR-URL: https://github.com/nodejs/node/pull/58220
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: LiviaMedeiros <livia@cirno.name>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
2025-05-09 19:41:31 +00:00

32 lines
731 B
JavaScript

'use strict';
// Flags: --zero-fill-buffers
// when using --zero-fill-buffers, every Buffer
// instance must be zero filled upon creation
require('../common');
const { Buffer } = require('buffer');
const assert = require('assert');
function isZeroFilled(buf) {
for (const n of buf)
if (n > 0) return false;
return true;
}
// This can be somewhat unreliable because the
// allocated memory might just already happen to
// contain all zeroes. The test is run multiple
// times to improve the reliability.
for (let i = 0; i < 50; i++) {
const bufs = [
Buffer.alloc(20),
Buffer.allocUnsafe(20),
Buffer.allocUnsafeSlow(20),
Buffer(20),
];
for (const buf of bufs) {
assert(isZeroFilled(buf));
}
}