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Add additional strategies to make._exceed

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This commit is contained in:
pyoor 2018-08-06 10:22:21 -04:00
parent 80f16a4aaf
commit b47a281403
1 changed files with 30 additions and 13 deletions
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43
lib/make/numbers.js
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@ -7,15 +7,23 @@ const random = require('../random')
class number extends make {
/**
* generate a number that exceeds the supplied boundary by +- 3
* @param start
* @param end
* Generate a number that is more likely to exceed the supplied boundary
* @param value {number}
* @private
*/
static _exceed (start, end) {
const value = random.item([start, end])
const offset = random.range(-3, 3)
return value + offset
static _exceed (value) {
switch (random.number(4)) {
case 0:
// Divisions
return Math.ceil(value / random.range(2, 4))
case 1:
// Powers
const offset = Math.pow(2, random.range(1, 7))
return (value > 0) ? (value - offset) : value + offset
default:
// Slightly less than limit
return (value > 0) ? (value - random.number(3)) : value + random.number(3)
}
}
/**
@ -25,7 +33,10 @@ class number extends make {
*/
static int8 (bypass = false) {
if (bypass || random.chance(50)) {
return number._exceed(-128, 127)
return number._exceed(random.choose([
[1, -128],
[10, 127]
]))
}
return random.range(-128, 127)
@ -38,7 +49,7 @@ class number extends make {
*/
static uint8 (bypass = false) {
if (bypass || random.chance(50)) {
return number._exceed(0, 255)
return number._exceed(255)
}
return random.range(0, 255)
@ -51,7 +62,10 @@ class number extends make {
*/
static int16 (bypass = false) {
if (bypass || random.chance(50)) {
return number._exceed(-32768, 32767)
return number._exceed(random.choose([
[1, -32768],
[10, 32767]
]))
}
return random.range(-32768, 32767)
@ -64,7 +78,7 @@ class number extends make {
*/
static uint16 (bypass = false) {
if (bypass || random.chance(50)) {
return number._exceed(0, 65535)
return number._exceed(65535)
}
return random.range(-0, 65535)
@ -77,7 +91,10 @@ class number extends make {
*/
static int32 (bypass = false) {
if (bypass || random.chance(50)) {
return number._exceed(-2147483648, 2147483647)
return number._exceed(random.choose([
[1, -2147483648],
[10, 2147483647]
]))
}
return random.range(-2147483648, 2147483647)
@ -90,7 +107,7 @@ class number extends make {
*/
static uint32 (bypass = false) {
if (bypass || random.chance(50)) {
return number._exceed(0, 4294967295)
return number._exceed(4294967295)
}
return random.range(0, 4294967295)