deno.land / std@0.166.0 / node / _tools / test / parallel / test-buffer-zero-fill-cli.js
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// Copyright Joyent and Node contributors. All rights reserved. MIT license.// Taken from Node 18.12.0// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
'use strict';// Flags: --zero-fill-buffers
// when using --zero-fill-buffers, every Buffer and SlowBuffer// instance must be zero filled upon creation
require('../common');const SlowBuffer = require('buffer').SlowBuffer;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), SlowBuffer(20), Buffer(20), new SlowBuffer(20), ]; for (const buf of bufs) { assert(isZeroFilled(buf)); }}
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