# How to use maxSafeInteger method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

array-length-cant-get-casted-to-unsigned.js

Source:array-length-cant-get-casted-to-unsigned.js

`1function assert(b) {2 if (!b)3 throw new Error;4}5const boundary = 2**32; // UINT_MAX + 16const maxSafeInteger = 2**53 - 1;7function testArrayPop() {8 let obj = {9 0: 42,10 length: boundary 11 };12 Array.prototype.pop.call(obj);13 assert(obj[0] === 42);14 assert(obj.length === boundary - 1);15}16testArrayPop();17function testArrayPush() {18 let obj = {19 0: 42,20 length: boundary21 };22 Array.prototype.push.call(obj, 10);23 assert(obj[0] === 42);24 assert(obj.length === boundary + 1);25}26testArrayPush();27// NOTE: this takes very long so we don't run it...28function testArrayReverse() {29 let obj = {30 0: 42,31 [boundary - 1]: 0,32 length: boundary33 };34 Array.prototype.reverse.call(obj);35 assert(obj[0] === 0);36 assert(obj[boundary - 1] === 42);37}38//testArrayReverse();39// NOTE: this takes very long so we don't run it...40function testArrayShift() {41 let obj = {42 0: 42,43 length: boundary44 };45 let elem = Array.prototype.shift.call(obj);46 assert(elem === 42);47 assert(obj.length === boundary - 1);48 assert(obj[0] === undefined);49}50//testArrayShift();51function testArraySlice() {52 let obj = {53 0: 42,54 1: 43,55 length: boundary56 };57 let arr = Array.prototype.slice.call(obj, 0, 2);58 assert(arr[0] === 42);59 assert(arr[1] === 43);60 assert(arr.length === 2);61}62testArraySlice();63function testArraySplice() {64 let obj = {65 0: 42,66 1: 43,67 length: boundary68 };69 Array.prototype.splice.call(obj, boundary-1, 0, 1, 2, 3);70 assert(obj.length === boundary + 3);71 assert(obj[boundary-1] === 1);72 assert(obj[boundary] === 2);73 assert(obj[boundary+1] === 3);74}75testArraySplice();76// NOTE: this takes very long so we don't run it...77function testArrayUnshift() {78 let obj = {79 1: 42,80 length: boundary81 };82 Array.prototype.unshift.call(obj, 43);83 assert(obj[0] === 43);84 assert(obj[2] === 42);85 assert(obj.length === boundary + 1);86}87//testArrayUnshift();88function testArrayIndexOf() {89 let obj = {90 30: 42,91 length: boundary92 };93 let r = Array.prototype.indexOf.call(obj, 42);94 assert(r === 30);95}96testArrayIndexOf();97function testArrayLastIndexOf() {98 let obj = {99 [boundary - 30]: 42,100 length: boundary101 };102 let r = Array.prototype.lastIndexOf.call(obj, 42);103 assert(r === boundary - 30);104}105testArrayLastIndexOf();106function shouldThrowTypeError(f) {107 let ok = false;108 try {109 f();110 } catch(e) {111 ok = e instanceof TypeError && e.message.indexOf("larger than (2 ** 53) - 1") >= 0;112 }113 assert(ok);114}115shouldThrowTypeError(function() {116 let obj = {117 0: 42,118 length: maxSafeInteger119 };120 Array.prototype.push.call(obj, 10);121});122shouldThrowTypeError(function() {123 let obj = {124 0: 42,125 length: maxSafeInteger - 1126 };127 Array.prototype.push.call(obj, 10, 20);128});129shouldThrowTypeError(function() {130 let obj = {131 0: 42,132 length: maxSafeInteger133 };134 Array.prototype.unshift.call(obj, 10);135});136shouldThrowTypeError(function() {137 let obj = {138 0: 42,139 length: maxSafeInteger - 1140 };141 Array.prototype.unshift.call(obj, 10, 20);142});143shouldThrowTypeError(function() {144 let obj = {145 0: 42,146 length: maxSafeInteger147 };148 Array.prototype.splice.call(obj, obj.length - 10, 0, 10);149});150shouldThrowTypeError(function() {151 let obj = {152 0: 42,153 length: maxSafeInteger - 1154 };155 Array.prototype.splice.call(obj, obj.length - 10, 0, 10, 20);156});157shouldThrowTypeError(function() {158 let obj = {159 0: 42,160 length: maxSafeInteger - 1161 };162 Array.prototype.splice.call(obj, obj.length - 10, 1, 10, 20, 30);163});164shouldThrowTypeError(function() {165 let obj = {166 0: 42,167 length: maxSafeInteger168 };169 Array.prototype.splice.call(obj, obj.length - 10, 1, 10, 20);170});171function testJSONStringify() {172 let arr = [1,2,3];173 let p = new Proxy(arr, {174 get(target, prop, receiver) {175 if (prop === "length") {176 return boundary;177 }178 return Reflect.get(target, prop, receiver);179 }180 });181 let ok = false;182 try {183 JSON.stringify(p);184 } catch(e) {185 ok = e.message.indexOf("Out of memory") >= 0;186 }187 assert(ok);188}...`

random.js

Source:random.js

`1/* global window */2"use strict";3let getRandomValues = require("polyfill-crypto.getrandomvalues");4const crypto = window.crypto || window.msCrypto;5if (crypto && crypto.getRandomValues && Uint32Array) {6 getRandomValues = (typedArray) => {7 return crypto.getRandomValues(typedArray);8 };9}10// Floating points can store integers up to 2^53 safely.11const maxSafeInteger = Number.MAX_SAFE_INTEGER;12/**13 * Returns a number from 0 to just under 1, just like Math.random().14 *15 * @return {number}16 */17function number() {18 let result = maxSafeInteger;19 try {20 // Force a loop to happen so we can not return 1.21 while (result === maxSafeInteger) {22 const array = new Uint32Array(2);23 getRandomValues(array);24 // Get 21 bits from the first array element25 // eslint-disable-next-line no-bitwise26 result = array[0] & 0x1fffff;27 // Move those bits higher28 result *= 0x100000000;29 // Get a further 32 bits from the second array element30 result += array[1];31 }32 return result / maxSafeInteger;33 } catch (e) {34 // Exception in crypto. Fallback to Math.random.35 return Math.random();36 }37}38/**39 * Returns a number from 0 to (max - 1). Make sure the `max`40 * parameter is AT MOST 2^53 otherwise this falls back to41 * Math.random() and you certainly won't get an even distribution42 * of values because they can't be represented in the floating43 * point number.44 *45 * @param {number} max46 * @param {number} [min=0]47 * @return {number}48 */49function index(max) {50 try {51 if (max > maxSafeInteger) {52 // This is not a big-number library.53 throw new Error();54 }55 // Determine how many bits are needed56 let mask = 1;57 let bits = 1;58 while (mask < max) {59 mask *= 2;60 mask += 1;61 bits += 1;62 }63 if (bits <= 32) {64 let result = max;65 while (result >= max) {66 const array = new Uint32Array(1);67 getRandomValues(array);68 // eslint-disable-next-line no-bitwise69 result = array[0] & mask;70 }71 return result;72 } else {73 // We'll use all of the low byte. Need to determine how74 // much of the upper byte to use.75 for (let i = 0; i < 32; i += 1) {76 mask -= 1;77 mask /= 2;78 bits -= 1;79 }80 let result = max;81 while (result >= max) {82 const array = new Uint32Array(2);83 getRandomValues(array);84 // eslint-disable-next-line no-bitwise85 result = array[0] & mask;86 result *= 0x100000000;87 result += array[1];88 }89 return result;90 }91 } catch (e) {92 // Exception in crypto. Fallback to Math.random.93 return Math.floor(Math.random() * max);94 }95}96module.exports = {97 number,98 index,99 maxSafeInteger...`

Using AI Code Generation

`1const { maxSafeInteger } = require('fast-check');2console.log(maxSafeInteger);3const { maxSafeInteger } = require('fast-check');4console.log(maxSafeInteger);5const { maxSafeInteger } = require('fast-check');6console.log(maxSafeInteger);7const { maxSafeInteger } = require('fast-check');8console.log(maxSafeInteger);9const { maxSafeInteger } = require('fast-check');10console.log(maxSafeInteger);11const { maxSafeInteger } = require('fast-check');12console.log(maxSafeInteger);13const { maxSafeInteger } = require('fast-check');14console.log(maxSafeInteger);15const { maxSafeInteger } = require('fast-check');16console.log(maxSafeInteger);17const { maxSafeInteger } = require('fast-check');18console.log(maxSafeInteger);19const { maxSafeInteger } = require('fast-check');20console.log(maxSafeInteger);21const { maxSafeInteger } = require('fast-check');22console.log(maxSafeInteger);23const { maxSafeInteger } = require('fast-check');24console.log(maxSafeInteger);25const { maxSafeInteger } = require('fast-check');26console.log(maxSafeInteger);`

Using AI Code Generation

`1const fc = require('fast-check');2console.log(fc.maxSafeInteger);3const fc = require('@fast-check/core');4console.log(fc.maxSafeInteger);5const fc = require('@fast-check/arbitrary');6console.log(fc.maxSafeInteger);7const fc = require('@fast-check/property');8console.log(fc.maxSafeInteger);9const fc = require('@fast-check/commands');10console.log(fc.maxSafeInteger);11const fc = require('@fast-check/runner');12console.log(fc.maxSafeInteger);13const fc = require('@fast-check/test-check');14console.log(fc.maxSafeInteger);15const fc = require('@fast-check/test-runner');16console.log(fc.maxSafeInteger);17const fc = require('@fast-check/test-utils');18console.log(fc.maxSafeInteger);19const fc = require('@fast-check/generators');20console.log(fc.maxSafeInteger);21const fc = require('@fast-check/random');22console.log(fc.maxSafeInteger);23const fc = require('@fast-check/converters');24console.log(fc.maxSafeInteger);25const fc = require('@fast-check/async-property');26console.log(fc.maxSafeInteger);`

Using AI Code Generation

`1const fc = require('fast-check');2const maxSafeInteger = fc.maxSafeInteger;3console.log(maxSafeInteger);4const fc = require('fast-check/lib/fast-check-default');5const maxSafeInteger = fc.maxSafeInteger;6console.log(maxSafeInteger);7const fc = require('fast-check/lib/fast-check');8const maxSafeInteger = fc.maxSafeInteger;9console.log(maxSafeInteger);10const fc = require('fast-check/lib/check/arbitrary/IntegerArbitrary');11const maxSafeInteger = fc.maxSafeInteger;12console.log(maxSafeInteger);13const fc = require('fast-check/lib/check/arbitrary/IntegerArbitrary.js');14const maxSafeInteger = fc.maxSafeInteger;15console.log(maxSafeInteger);16const fc = require('fast-check/lib/check/arbitrary/IntegerArbitrary.js');17const maxSafeInteger = fc.maxSafeInteger;18console.log(maxSafeInteger);19const fc = require('fast-check/lib/check/arbitrary/IntegerArbitrary.js');20const maxSafeInteger = fc.maxSafeInteger;21console.log(maxSafeInteger);22const fc = require('fast-check/lib/check/arbitrary/IntegerArbitrary.js');23const maxSafeInteger = fc.maxSafeInteger;24console.log(maxSafeInteger);25const fc = require('fast-check/lib/check/arbitrary/IntegerArbitrary.js');26const maxSafeInteger = fc.maxSafeInteger;27console.log(maxSafeInteger);28const fc = require('fast-check/lib/check/arbitrary/IntegerArbitrary.js');29const maxSafeInteger = fc.maxSafeInteger;30console.log(maxSafeInteger);31const fc = require('fast-check/lib/check/arbitrary/IntegerArbitrary.js');32const maxSafeInteger = fc.maxSafeInteger;33console.log(maxSafeInteger);34const fc = require('fast-check/lib/check/arbitrary/IntegerArbitrary.js');`

Using AI Code Generation

`1const { maxSafeInteger } = require('fast-check-monorepo');2const { maxSafeInteger } = require('fast-check');3const { maxSafeInteger } = require('fast-check-monorepo');4const { maxSafeInteger } = require('fast-check');5const { maxSafeInteger } = require('fast-check-monorepo');6const { maxSafeInteger } = require('fast-check');`

Using AI Code Generation

`1const fc = require('fast-check');2const {maxSafeInteger} = require('fast-check');3const test3 = () => {4 fc.assert(5 fc.property(fc.integer(), (a) => {6 return a >= 0 && a <= maxSafeInteger;7 })8 );9};10test3();11const fc = require('fast-check');12const {maxSafeInteger} = require('fast-check');13const test4 = () => {14 fc.assert(15 fc.property(fc.integer(), (a) => {16 return a >= 0 && a <= maxSafeInteger;17 })18 );19};20test4();21const fc = require('fast-check');22const {maxSafeInteger} = require('fast-check');23const test5 = () => {24 fc.assert(25 fc.property(fc.integer(), (a) => {26 return a >= 0 && a <= maxSafeInteger;27 })28 );29};30test5();31const fc = require('fast-check');32const {maxSafeInteger} = require('fast-check');33const test6 = () => {34 fc.assert(35 fc.property(fc.integer(), (a) => {36 return a >= 0 && a <= maxSafeInteger;37 })38 );39};40test6();41const fc = require('fast-check');42const {maxSafeInteger} = require('fast-check');43const test7 = () => {44 fc.assert(45 fc.property(fc.integer(), (a) => {46 return a >= 0 && a <= maxSafeInteger;47 })48 );49};50test7();51const fc = require('fast-check');52const {maxSafeInteger} = require('fast-check');53const test8 = () => {54 fc.assert(55 fc.property(fc.integer(),`

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