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39 lines
1 KiB
JavaScript
39 lines
1 KiB
JavaScript
// deno-fmt-ignore-file
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// deno-lint-ignore-file
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// Copyright Joyent and Node contributors. All rights reserved. MIT license.
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// Taken from Node 18.12.1
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// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.
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'use strict';
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// Flags: --zero-fill-buffers
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// when using --zero-fill-buffers, every Buffer and SlowBuffer
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// instance must be zero filled upon creation
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require('../common');
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const SlowBuffer = require('buffer').SlowBuffer;
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const assert = require('assert');
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function isZeroFilled(buf) {
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for (const n of buf)
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if (n > 0) return false;
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return true;
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}
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// This can be somewhat unreliable because the
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// allocated memory might just already happen to
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// contain all zeroes. The test is run multiple
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// times to improve the reliability.
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for (let i = 0; i < 50; i++) {
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const bufs = [
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Buffer.alloc(20),
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Buffer.allocUnsafe(20),
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SlowBuffer(20),
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Buffer(20),
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new SlowBuffer(20),
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];
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for (const buf of bufs) {
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assert(isZeroFilled(buf));
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}
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}
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