X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=benchmark-utils.js;h=678a2b3b80ae28a7367ade71a1993ee77b45d640;hb=47006ddf6055b02dd084ae91269f12b44ce8225d;hp=1e7914f95b78ec72175f5d5827bebd28980f1038;hpb=ed40d2b012a740d121f1951b9be91df341d6eaf3;p=benchmarks-js.git

diff --git a/benchmark-utils.js b/benchmark-utils.js
index 1e7914f..678a2b3 100644
--- a/benchmark-utils.js
+++ b/benchmark-utils.js
@@ -14,12 +14,12 @@ function secureRandom () {
  * @param min
  * @returns
  */
-function generateRandomInteger (max, min = 0) {
+function generateRandomInteger (max = Number.MAX_SAFE_INTEGER, min = 0) {
   if (max < 0) {
     throw new RangeError('Invalid interval')
   }
   max = Math.floor(max)
-  if (min) {
+  if (min != null && min !== 0) {
     if (max < min || min < 0) {
       throw new RangeError('Invalid interval')
     }
@@ -33,13 +33,35 @@ function generateRandomInteger (max, min = 0) {
  *
  * @param size
  * @param max
+ * @param numberGenerator
+ * @returns
  */
-function generateRandomIntegerArray (size, max = Number.MAX_SAFE_INTEGER) {
-  const integerArray = []
+function generateRandomNumberArray (
+  size,
+  max = Number.MAX_VALUE,
+  numberGenerator = generateRandomFloat
+) {
+  const array = []
   for (let i = 0; i < size; i++) {
-    integerArray.push(generateRandomInteger(max))
+    array.push(numberGenerator(max))
+  }
+  return array
+}
+
+/**
+ *
+ * @param max
+ * @param min
+ * @param negative
+ * @returns
+ */
+function generateRandomFloat (max = Number.MAX_VALUE, min = 0, negative = true) {
+  if (max < min || min < 0 || max < 0) {
+    throw new RangeError('Invalid interval')
   }
-  return integerArray
+  const randomPositiveFloat = crypto.randomBytes(4).readUInt32LE() / 0xffffffff
+  const sign = negative && randomPositiveFloat < 0.5 ? -1 : 1
+  return sign * (randomPositiveFloat * (max - min) + min)
 }
 
 /**
@@ -57,7 +79,8 @@ const LIST_FORMATTER = new Intl.ListFormat('en-US', {
 
 module.exports = {
   generateRandomInteger,
-  generateRandomIntegerArray,
+  generateRandomFloat,
+  generateRandomNumberArray,
   sleep,
   secureRandom,
   LIST_FORMATTER