| 1 | const Benchmark = require('benchmark') |
| 2 | const crypto = require('crypto') |
| 3 | const { LIST_FORMATTER } = require('./benchmark-utils') |
| 4 | |
| 5 | const suite = new Benchmark.Suite() |
| 6 | |
| 7 | const maximum = 1000 |
| 8 | |
| 9 | /** |
| 10 | * |
| 11 | */ |
| 12 | function secureRandom () { |
| 13 | return crypto.randomBytes(4).readUInt32LE() / 0x100000000 |
| 14 | } |
| 15 | |
| 16 | /** |
| 17 | * @param max |
| 18 | * @param min |
| 19 | */ |
| 20 | function getSecureRandomInteger (max, min = 0) { |
| 21 | max = Math.floor(max) |
| 22 | if (min) { |
| 23 | min = Math.ceil(min) |
| 24 | return Math.floor(secureRandom() * (max - min + 1)) + min |
| 25 | } |
| 26 | return Math.floor(secureRandom() * (max + 1)) |
| 27 | } |
| 28 | |
| 29 | /** |
| 30 | * @param max |
| 31 | * @param min |
| 32 | */ |
| 33 | function getRandomInteger (max, min = 0) { |
| 34 | max = Math.floor(max) |
| 35 | if (min) { |
| 36 | min = Math.ceil(min) |
| 37 | return Math.floor(Math.random() * (max - min + 1)) + min |
| 38 | } |
| 39 | return Math.floor(Math.random() * (max + 1)) |
| 40 | } |
| 41 | |
| 42 | suite |
| 43 | .add('Secure random integer generator', function () { |
| 44 | getSecureRandomInteger(maximum) |
| 45 | }) |
| 46 | .add('Random integer generator', function () { |
| 47 | getRandomInteger(maximum) |
| 48 | }) |
| 49 | .on('cycle', function (event) { |
| 50 | console.log(event.target.toString()) |
| 51 | }) |
| 52 | .on('complete', function () { |
| 53 | console.log( |
| 54 | 'Fastest is ' + LIST_FORMATTER.format(this.filter('fastest').map('name')) |
| 55 | ) |
| 56 | // eslint-disable-next-line no-process-exit |
| 57 | process.exit() |
| 58 | }) |
| 59 | .run() |