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PR-URL: #7602 Reviewed-By: Anna Henningsen <anna@addaleax.net>
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'use strict'; | ||
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const common = require('../common.js'); | ||
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const bench = common.createBenchmark(main, { | ||
len: [0, 1, 64, 1024], | ||
n: [1e7] | ||
}); | ||
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function main(conf) { | ||
const len = conf.len | 0; | ||
const n = conf.n | 0; | ||
const buf = Buffer.alloc(len); | ||
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for (let i = 0; i < buf.length; i++) | ||
buf[i] = i & 0xff; | ||
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const hex = buf.toString('hex'); | ||
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bench.start(); | ||
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for (let i = 0; i < n; i += 1) | ||
Buffer.from(hex, 'hex'); | ||
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bench.end(n); | ||
} |
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Original file line number | Diff line number | Diff line change |
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'use strict'; | ||
require('../common'); | ||
const assert = require('assert'); | ||
const Buffer = require('buffer').Buffer; | ||
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// Test hex strings and bad hex strings | ||
{ | ||
const buf1 = Buffer.alloc(4); | ||
assert.strictEqual(buf1.length, 4); | ||
assert.deepStrictEqual(buf1, new Buffer([0, 0, 0, 0])); | ||
assert.strictEqual(buf1.write('abcdxx', 0, 'hex'), 2); | ||
assert.deepStrictEqual(buf1, new Buffer([0xab, 0xcd, 0x00, 0x00])); | ||
assert.strictEqual(buf1.toString('hex'), 'abcd0000'); | ||
assert.strictEqual(buf1.write('abcdef01', 0, 'hex'), 4); | ||
assert.deepStrictEqual(buf1, new Buffer([0xab, 0xcd, 0xef, 0x01])); | ||
assert.strictEqual(buf1.toString('hex'), 'abcdef01'); | ||
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const buf2 = Buffer.from(buf1.toString('hex'), 'hex'); | ||
assert.strictEqual(buf1.toString('hex'), buf2.toString('hex')); | ||
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const buf3 = Buffer.alloc(5); | ||
assert.strictEqual(buf3.write('abcdxx', 1, 'hex'), 2); | ||
assert.strictEqual(buf3.toString('hex'), '00abcd0000'); | ||
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const buf4 = Buffer.alloc(4); | ||
assert.deepStrictEqual(buf4, new Buffer([0, 0, 0, 0])); | ||
assert.strictEqual(buf4.write('xxabcd', 0, 'hex'), 0); | ||
assert.deepStrictEqual(buf4, new Buffer([0, 0, 0, 0])); | ||
assert.strictEqual(buf4.write('xxab', 1, 'hex'), 0); | ||
assert.deepStrictEqual(buf4, new Buffer([0, 0, 0, 0])); | ||
assert.strictEqual(buf4.write('cdxxab', 0, 'hex'), 1); | ||
assert.deepStrictEqual(buf4, new Buffer([0xcd, 0, 0, 0])); | ||
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const buf5 = Buffer.alloc(256); | ||
for (let i = 0; i < 256; i++) | ||
buf5[i] = i; | ||
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const hex = buf5.toString('hex'); | ||
assert.deepStrictEqual(Buffer.from(hex, 'hex'), buf5); | ||
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const badHex = hex.slice(0, 256) + 'xx' + hex.slice(256, 510); | ||
assert.deepStrictEqual(Buffer.from(badHex, 'hex'), buf5.slice(0, 128)); | ||
} |