benchmark-utils.mjs

   1 import { getRandomValues, randomBytes, randomInt } from 'node:crypto'
   2
   3 /**
   4  * Generate a cryptographically secure random number in the [0,1[ range
   5  * @returns
   6  */
   7 export function secureRandom () {
   8   return randomBytes(4).readUInt32LE() / 0x100000000
   9 }
  10
  11 /**
  12  * Generate a cryptographically secure random number in the [0,1[ range
  13  * @returns
  14  */
  15 export function secureRandomWithRandomValues () {
  16   return getRandomValues(new Uint32Array(1))[0] / 0x100000000
  17 }
  18
  19 /**
  20  *
  21  * @param max
  22  * @param min
  23  * @returns
  24  */
  25 export function generateRandomFloat (max = Number.MAX_VALUE, min = 0) {
  26   if (max < min) {
  27     throw new RangeError('Invalid interval')
  28   }
  29   if (max - min === Number.POSITIVE_INFINITY) {
  30     throw new RangeError('Invalid interval')
  31   }
  32   return (randomBytes(4).readUInt32LE() / 0xffffffff) * (max - min) + min
  33 }
  34
  35 /**
  36  *
  37  * @param size
  38  * @param max
  39  * @param numberGenerator
  40  * @returns
  41  */
  42 export function generateRandomNumberArray (
  43   size,
  44   max = Number.MAX_VALUE,
  45   numberGenerator = generateRandomFloat
  46 ) {
  47   const array = []
  48   for (let i = 0; i < size; i++) {
  49     array.push(numberGenerator(max))
  50   }
  51   return array
  52 }
  53
  54 /**
  55  *
  56  * @param sizeMax
  57  * @param numberMax
  58  * @param numberGenerator
  59  * @returns
  60  */
  61 export function generateRandomObject (
  62   sizeMax = 500,
  63   numberMax = Number.MAX_VALUE,
  64   numberGenerator = generateRandomFloat
  65 ) {
  66   const size = randomInt(sizeMax)
  67   const object = {}
  68   for (let i = 0; i < size; i++) {
  69     object[i.toString()] = numberGenerator(numberMax)
  70   }
  71   return object
  72 }
  73
  74 /**
  75  * @param ms
  76  * @returns
  77  */
  78 export async function sleep (ms) {
  79   return await new Promise(resolve => setTimeout(resolve, ms))
  80 }