How to use bigIntIndexCurrent method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

DoubleHelpers.spec.ts

Source: DoubleHelpers.spec.ts Github

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1import * as fc from 'fast-check';2import { float64raw, isStrictlySmaller } from '../​../​__test-helpers__/​FloatingPointHelpers';3import {4 decomposeDouble,5 doubleToIndex,6 indexToDouble,7} from '../​../​../​../​../​src/​arbitrary/​_internals/​helpers/​DoubleHelpers';8type Index = ReturnType<typeof doubleToIndex>;9const toIndex = (raw: bigint | string): Index => {10 const b = typeof raw === 'string' ? BigInt(raw) : raw;11 const pb = b < BigInt(0) ? -b : b;12 return { sign: b < BigInt(0) ? -1 : 1, data: [Number(pb >> BigInt(32)), Number(pb & BigInt(0xffffffff))] };13};14const toBigInt = (index: Index): bigint => {15 return BigInt(index.sign) * ((BigInt(index.data[0]) << BigInt(32)) + BigInt(index.data[1]));16};17describe('decomposeDouble', () => {18 it('should properly decompose basic values', () => {19 expect(decomposeDouble(0)).toEqual({ exponent: -1022, significand: 0 });20 expect(decomposeDouble(1)).toEqual({ exponent: 0, significand: 1 });21 expect(decomposeDouble(128)).toEqual({ exponent: 7, significand: 1 });22 expect(decomposeDouble(201)).toEqual({ exponent: 7, significand: 1.5703125 });23 });24 it('should properly decompose negative values', () => {25 expect(decomposeDouble(-0)).toEqual({ exponent: -1022, significand: -0 });26 expect(decomposeDouble(-1)).toEqual({ exponent: 0, significand: -1 });27 });28 it('should properly decompose extreme values', () => {29 expect(decomposeDouble(Number.MAX_VALUE)).toEqual({ exponent: 1023, significand: 2 - Number.EPSILON });30 expect(decomposeDouble(Number.MIN_VALUE)).toEqual({ exponent: -1022, significand: Number.EPSILON });31 expect(decomposeDouble(Number.EPSILON)).toEqual({ exponent: -52, significand: 1 });32 expect(decomposeDouble(1 + Number.EPSILON)).toEqual({ exponent: 0, significand: 1 + Number.EPSILON });33 });34 it('should decompose a 64-bit float into its equivalent (significand, exponent)', () => {35 fc.assert(36 fc.property(float64raw(), (f64) => {37 /​/​ Arrange38 fc.pre(!Number.isNaN(f64));39 /​/​ Act40 const { exponent, significand } = decomposeDouble(f64);41 /​/​ Assert42 expect(significand * 2 ** exponent).toBe(f64);43 })44 );45 });46});47describe('doubleToIndex', () => {48 it('should always produce well-formed indexes', () => {49 fc.assert(50 fc.property(float64raw(), (d) => {51 /​/​ Arrange52 fc.pre(!Number.isNaN(d));53 /​/​ Act54 const index = doubleToIndex(d);55 /​/​ Assert56 expect(index.data[0]).toBeGreaterThanOrEqual(0);57 expect(index.data[0]).toBeLessThanOrEqual(0xffffffff);58 expect(Number.isInteger(index.data[0])).toBe(true);59 expect(index.data[1]).toBeGreaterThanOrEqual(0);60 expect(index.data[1]).toBeLessThanOrEqual(0xffffffff);61 expect(Number.isInteger(index.data[1])).toBe(true);62 })63 );64 });65 if (typeof BigInt === 'undefined') {66 it('no test', () => {67 expect(true).toBe(true);68 });69 return;70 } /​/​ Following tests require BigInt to be launched71 it('should properly compute indexes', () => {72 expect(doubleToIndex(0)).toEqual(toIndex('0'));73 expect(doubleToIndex(Number.MIN_VALUE)).toEqual(toIndex('1'));74 expect(doubleToIndex(2 * Number.MIN_VALUE)).toEqual(toIndex('2'));75 expect(doubleToIndex(3 * Number.MIN_VALUE)).toEqual(toIndex('3'));76 /​/​ Last double with minimal exponent, ie -102277 /​/​ index(last with min exponent) = 2**53 - 178 expect(doubleToIndex(2 ** -1022 * (2 - Number.EPSILON))).toEqual(toIndex('9007199254740991'));79 /​/​ First double without minimal exponent, ie -102280 /​/​ index(first without min exponent) = index(last with min exponent) + 181 expect(doubleToIndex(2 ** -1021)).toEqual(toIndex('9007199254740992'));82 /​/​ Number.EPSILON === 1. * 2**-52 --> m = 1, e = -5283 /​/​ index(Number.EPSILON) = 2**53 + (-52 - (-1022) -1) * 2**5284 expect(doubleToIndex(Number.EPSILON)).toEqual(toIndex('4372995238176751616'));85 /​/​ index(1 - Number.EPSILON /​ 2) = index(1) - 186 expect(doubleToIndex(1 - Number.EPSILON /​ 2)).toEqual(toIndex('4607182418800017407'));87 /​/​ 1 === 1. * 2**0 --> m = 1, e = 088 /​/​ index(1) = 2**53 + (0 - (-1022) -1) * 2**5289 expect(doubleToIndex(1)).toEqual(toIndex('4607182418800017408'));90 /​/​ index(1 + Number.EPSILON) = index(1) + 191 expect(doubleToIndex(1 + Number.EPSILON)).toEqual(toIndex('4607182418800017409'));92 /​/​ index(2 - Number.EPSILON) = index(2) - 1 = index(1 + (2 ** 52 - 1) * Number.EPSILON)93 expect(doubleToIndex(2 - Number.EPSILON)).toEqual(toIndex('4611686018427387903'));94 /​/​ 1 === 1. * 2**1 --> m = 1, e = 195 /​/​ index(2) = index(1) + 2**5296 expect(doubleToIndex(2)).toEqual(toIndex('4611686018427387904'));97 /​/​ Number.MAX_VALUE === (1 + (2**52-1)/​2**52) * 2**1023 --> m = 1 + (2**52-1)/​2**52, e = 102398 /​/​ index(Number.MAX_VALUE) = index(next(Number.MAX_VALUE)) -1 = 2**53 + (1024 - (-1022) -1) * 2**52 -199 expect(doubleToIndex(Number.MAX_VALUE)).toEqual(toIndex('9218868437227405311'));100 });101 it('should properly compute negative indexes', () => {102 expect(doubleToIndex(-0)).toEqual(toIndex('-1'));103 expect(doubleToIndex(-Number.MIN_VALUE)).toEqual(toIndex('-2'));104 expect(doubleToIndex(-Number.MAX_VALUE)).toEqual(toIndex('-9218868437227405312'));105 });106 it('should properly compute indexes for infinity', () => {107 expect(doubleToIndex(Number.NEGATIVE_INFINITY)).toEqual(108 toIndex(toBigInt(doubleToIndex(-Number.MAX_VALUE)) - BigInt(1))109 );110 expect(doubleToIndex(Number.POSITIVE_INFINITY)).toEqual(111 toIndex(toBigInt(doubleToIndex(Number.MAX_VALUE)) + BigInt(1))112 );113 });114 it('should be able to infer index for negative double from the positive one', () => {115 fc.assert(116 fc.property(float64raw(), (d) => {117 /​/​ Arrange118 fc.pre(!Number.isNaN(d));119 const posD = d > 0 || 1 /​ d > 0 ? d : -d;120 /​/​ Act121 const bigIntIndexPos = toBigInt(doubleToIndex(posD));122 const bigIntIndexNeg = toBigInt(doubleToIndex(-posD));123 /​/​ Assert124 expect(bigIntIndexNeg).toEqual(-bigIntIndexPos - BigInt(1));125 })126 );127 });128 it('should return index +1 for the successor of a given double', () => {129 fc.assert(130 fc.property(131 fc.integer({ min: -1022, max: +1023 }),132 fc.integer({ min: 0, max: 2 ** 53 - 1 }),133 (exponent, rescaledSignificand) => {134 /​/​ Arrange135 fc.pre(exponent === -1022 || rescaledSignificand >= 2 ** 52); /​/​ valid136 fc.pre(exponent !== 1023 || rescaledSignificand !== 2 ** 53 - 1); /​/​ not max137 const current = rescaledSignificand * Number.EPSILON * 2 ** exponent;138 const next = (rescaledSignificand + 1) * Number.EPSILON * 2 ** exponent;139 /​/​ Act140 const bigIntIndexCurrent = toBigInt(doubleToIndex(current));141 const bigIntIndexNext = toBigInt(doubleToIndex(next));142 /​/​ Assert143 expect(bigIntIndexNext).toEqual(bigIntIndexCurrent + BigInt(1));144 }145 )146 );147 });148 it('should preserve ordering between two doubles', () => {149 fc.assert(150 fc.property(float64raw(), float64raw(), (fa64, fb64) => {151 /​/​ Arrange152 fc.pre(!Number.isNaN(fa64) && !Number.isNaN(fb64));153 /​/​ Act /​ Assert154 if (isStrictlySmaller(fa64, fb64)) {155 expect(toBigInt(doubleToIndex(fa64))).toBeLessThan(toBigInt(doubleToIndex(fb64)));156 } else {157 expect(toBigInt(doubleToIndex(fa64))).toBeGreaterThanOrEqual(toBigInt(doubleToIndex(fb64)));158 }159 })160 );161 });162});163describe('indexToDouble', () => {164 it('Should reverse doubleToIndex', () =>165 fc.assert(166 fc.property(float64raw(), (f64) => {167 fc.pre(!Number.isNaN(f64));168 expect(indexToDouble(doubleToIndex(f64))).toBe(f64);169 })170 ));171 if (typeof BigInt === 'undefined') {172 it('no test', () => {173 expect(true).toBe(true);174 });175 return;176 } /​/​ Following tests require BigInt to be launched177 it('should properly find doubles corresponding to well-known values', () => {178 expect(indexToDouble(toIndex('-9218868437227405313'))).toBe(Number.NEGATIVE_INFINITY);179 expect(indexToDouble(toIndex('-9218868437227405312'))).toBe(-Number.MAX_VALUE);180 expect(indexToDouble(toIndex('-1'))).toBe(-0);181 expect(indexToDouble(toIndex('0'))).toBe(0);182 expect(indexToDouble(toIndex('4372995238176751616'))).toBe(Number.EPSILON);183 expect(indexToDouble(toIndex('9218868437227405311'))).toBe(Number.MAX_VALUE);184 expect(indexToDouble(toIndex('9218868437227405312'))).toBe(Number.POSITIVE_INFINITY);185 });186 it('should be reversed by doubleToIndex', () => {187 fc.assert(188 fc.property(189 fc.bigInt({ min: BigInt('-9218868437227405313'), max: BigInt('9218868437227405312') }),190 (bigIntIndex) => {191 /​/​ The test below checks that indexToDouble(doubleToIndex) is identity192 /​/​ It does not confirm that doubleToIndex(indexToDouble)) is identity193 /​/​ Arrange194 const index = toIndex(bigIntIndex);195 /​/​ Act /​ Assert196 expect(doubleToIndex(indexToDouble(index))).toEqual(index);197 }198 )199 );200 });...

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Using AI Code Generation

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1const fc = require('fast-check');2const bigIntIndexCurrent = require('fast-check-monorepo').bigIntIndexCurrent;3const bigIntIndex = require('fast-check-monorepo').bigIntIndex;4const bigIntIndexOld = require('fast-check-monorepo').bigIntIndexOld;5fc.assert(6 fc.property(7 fc.bigInt({min: 0n, max: 1000000000000000000000000000n}),8 fc.bigInt({min: 0n, max: 1000000000000000000000000000n}),9 fc.bigInt({min: 0n, max: 1000000000000000000000000000n}),10 (a, b, c) => {11 return bigIntIndexCurrent(a, b, c) === bigIntIndexOld(a, b, c);12 }13);14const fc = require('fast-check');15const bigIntIndexCurrent = require('fast-check-monorepo').bigIntIndexCurrent;16const bigIntIndex = require('fast-check-monorepo').bigIntIndex;17const bigIntIndexOld = require('fast-check-monorepo').bigIntIndexOld;18fc.assert(19 fc.property(20 fc.bigInt({min: 0n, max: 1000000000000000000000000000n}),21 fc.bigInt({min: 0n, max: 1000000000000000000000000000n}),22 fc.bigInt({min: 0n, max: 1000000000000000000000000000n}),23 (a, b, c) => {24 return bigIntIndexCurrent(a, b, c) === bigIntIndexOld(a, b, c);25 }26);27const fc = require('fast-check');28const bigIntIndexCurrent = require('fast-check-monorepo').bigIntIndexCurrent;29const bigIntIndex = require('fast-check-monorepo').bigIntIndex;30const bigIntIndexOld = require('fast-check-monorepo').bigIntIndexOld;31fc.assert(32 fc.property(33 fc.bigInt({min: 0n, max

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Using AI Code Generation

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1import bigIntIndexCurrent from 'fast-check';2const bigIntIndex = bigIntIndexCurrent.bigIntIndex;3const bigIntIndexCurrent = bigIntIndexCurrent.bigIntIndexCurrent;4const bigIntIndex = require('fast-check').bigIntIndex;5const bigIntIndexCurrent = require('fast-check').bigIntIndexCurrent;6const bigIntIndex = require('fast-check-monorepo').bigIntIndex;7const bigIntIndexCurrent = require('fast-check-monorepo').bigIntIndexCurrent;8const arb = bigIntIndex();9const arbCurrent = bigIntIndexCurrent();10function bigIntIndexCurrent(): Arbitrary<bigint>;11import * as fc from 'fast-check';12fc.assert(13 fc.property(fc.bigIntArray(), fc.bigIntIndexCurrent(), (arr, idx) => {14 return idx >= 0 && idx < BigInt(arr.length);15 })16);17function bigUint(): Arbitrary<bigint>;18import * as fc from 'fast-check';19fc.assert(20 fc.property(fc.bigUint(), (n) => {21 return n >= 0 && n <= Number.MAX_SAFE_INTEGER;22 })23);24function bigUintN(n:

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Using AI Code Generation

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1const fc = require('fast-check');2const bigIntIndexCurrent = require('fast-check/​lib/​fast-check-default').bigIntIndexCurrent;3const bigIntIndex = require('fast-check/​lib/​fast-check-default').bigIntIndex;4const bigIntIndexOld = require('fast-check/​lib/​fast-check-default').bigIntIndexOld;5const bigIntIndexNew = require('fast-check/​lib/​fast-check-default').bigIntIndexNew;6const bigIntIndexOld2 = require('fast-check/​lib/​fast-check-default').bigIntIndexOld2;7const bigIntIndexOld3 = require('fast-check/​lib/​fast-check-default').bigIntIndexOld3;8const bigIntIndexOld4 = require('fast-check/​lib/​fast-check-default').bigIntIndexOld4;9const bigIntIndexOld5 = require('fast-check/​lib/​fast-check-default').bigIntIndexOld5;10const bigIntIndexOld6 = require('fast-check/​lib/​fast-check-default').bigIntIndexOld6;11const bigIntIndexOld7 = require('fast-check/​lib/​fast-check-default').bigIntIndexOld7;12const bigIntIndexOld8 = require('fast-check/​lib/​fast-check-default').bigIntIndexOld8;13const bigIntIndexOld9 = require('fast-check/​lib/​fast-check-default').bigIntIndexOld9;14const bigIntIndexOld10 = require('fast-check/​lib/​fast-check-default').bigIntIndexOld10;15const bigIntIndexOld11 = require('fast-check/​lib/​fast-check-default').bigIntIndexOld11;16const bigIntIndexOld12 = require('fast-check/​lib/​fast-check-default').bigIntIndexOld12;17const bigIntIndexOld13 = require('fast-check/​lib/​fast-check-default').bigIntIndexOld13;18const bigIntIndexOld14 = require('fast-check/​lib/​fast-check-default').bigIntIndexOld14;19const bigIntIndexOld15 = require('fast-check/​lib/​fast-check-default').bigIntIndexOld15;20const bigIntIndexOld16 = require('fast-check/​lib/​fast-check-default').bigIntIndexOld16;21const bigIntIndexOld17 = require('fast-check/​lib/​fast-check-default').bigIntIndexOld17;22const bigIntIndexOld18 = require('fast-check/​lib/​fast-check-default').bigIntIndexOld18;

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Using AI Code Generation

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1const {bigIntIndexCurrent} = require('fast-check');2const {bigInt} = require('fast-check');3const {property} = require('jest-fast-check');4property(5 bigIntIndexCurrent(),6 bigInt(),7 (index, value) => {8 expect(index).toBeGreaterThanOrEqual(0);9 expect(value).toBeGreaterThanOrEqual(0);10 expect(index).toBeLessThanOrEqual(value);11 },12).check();

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Using AI Code Generation

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1const { bigIntIndexCurrent } = require('fast-check');2const index = bigIntIndexCurrent(0n, 100n);3console.log(index);4const { bigIntIndexCurrent } = require('fast-check');5const index = bigIntIndexCurrent(0n, 100n);6console.log(index);

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Using AI Code Generation

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1const fc = require('fast-check');2const { bigIntIndexCurrent } = require('fast-check/​lib/​arbitrary/​IntegerArbitrary.js');3const { bigIntIndex } = fc.integer();4const { bigInt } = fc;5const { bigIntN } = fc.nat();6const a = bigIntIndexCurrent(bigIntN, bigIntIndex, bigInt);7console.log(a);8console.log(a.generate(0));9const fc = require('fast-check');10const { bigIntIndexCurrent } = require('fast-check/​lib/​arbitrary/​IntegerArbitrary.js');11const { bigIntIndex } = fc.integer();12const { bigInt } = fc;13const { bigIntN } = fc.nat();14const a = bigIntIndexCurrent(bigIntN, bigIntIndex, bigInt);15console.log(a);16console.log(a.generate(0));17const fc = require('fast-check-monorepo');18const { bigIntIndexCurrent } = require('fast-check-monorepo/​lib/​arbitrary/​IntegerArbitrary.js');19const { bigIntIndex } = fc.integer();20const { bigInt } = fc;21const { bigIntN } = fc.nat();22const a = bigIntIndexCurrent(bigIntN, bigIntIndex, bigInt);23console.log(a);24console.log(a.generate(0));25const fc = require('fast-check-monorepo');26const { bigIntIndexCurrent } = require('fast-check-monorepo/​lib/​arbitrary/​IntegerArbitrary.js');27const { bigIntIndex } = fc.integer();28const { bigInt } = fc;29const { bigIntN } = fc.nat();30const a = bigIntIndexCurrent(bigIntN, bigIntIndex, bigInt);31console.log(a);32console.log(a.generate(0));33const fc = require('fast-check-monorepo');34const { bigIntIndexCurrent } = require('fast-check-monorepo/​lib/​arbitrary/​IntegerArbitrary.js');35const { bigIntIndex } = fc.integer();36const { bigInt } = fc;37const { bigIntN } = fc.nat();38const a = bigIntIndexCurrent(bigIntN, bigInt

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Using AI Code Generation

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1const {bigIntIndexCurrent} = require('fast-check');2const {bigInt} = require('big-integer');3const {integer} = require('fast-check');4const {bigIntIndexCurrent} = require('fast-check');5const {bigInt} = require('big-integer');6const {integer} = require('fast-check');7const {bigIntIndexCurrent} = require('fast-check');8const {bigInt} = require('big-integer');9const {integer} = require('fast-check');10const {bigIntIndexCurrent} = require('fast-check');11const {bigInt} = require('big-integer');12const {integer} = require('fast-check');13const {bigIntIndexCurrent} = require('fast-check');14const {bigInt} = require('big-integer');15const {integer} = require('fast-check');16const {bigIntIndexCurrent} = require('fast-check');17const {bigInt} = require('big-integer');18const {integer} = require('fast-check');19const {bigIntIndexCurrent} = require('fast-check');20const {bigInt} = require('big-integer');21const {integer} = require('fast-check');22const {bigIntIndexCurrent} = require('fast-check');23const {bigInt} = require('big-integer');24const {integer} = require('fast-check');25const {bigIntIndexCurrent} = require('fast-check');26const {bigInt} = require('big-integer');27const {integer} = require('fast-check');28const {bigIntIndexCurrent} = require('fast-check');29const {bigInt} = require('big-integer');30const {integer} = require('fast-check');31const {bigIntIndexCurrent} = require('fast-check');32const {bigInt} = require('big-integer');33const {integer} = require('fast-check');34const {bigIntIndexCurrent} = require('fast-check');35const {bigInt} = require('big-integer');36const {integer} = require('fast-check');37const {bigIntIndexCurrent} = require('fast-check');38const {bigInt} = require('big-integer');39const {integer} = require('fast-check');40const {bigIntIndexCurrent} = require('fast-check');41const {bigInt} = require('big-integer');42const {integer} = require('fast-check');43const {bigIntIndexCurrent} =

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Using AI Code Generation

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1const bigIntIndexCurrent = require('fast-check').bigIntIndexCurrent;2const bigIntIndex = bigIntIndexCurrent();3const bigIntIndexNext = require('fast-check').bigIntIndexNext;4const bigIntIndex = bigIntIndexNext();5const bigIntIndexPrevious = require('fast-check').bigIntIndexPrevious;6const bigIntIndex = bigIntIndexPrevious();7const bigIntIndexNext = require('fast-check').bigIntIndexNext;8const bigIntIndex = bigIntIndexNext();9const bigIntIndexCurrent = require('fast-check').bigIntIndexCurrent;10const bigIntIndex = bigIntIndexCurrent();11const bigIntIndexPrevious = require('fast-check').bigIntIndexPrevious;12const bigIntIndex = bigIntIndexPrevious();13const bigIntIndexNext = require('fast-check').bigIntIndexNext;14const bigIntIndex = bigIntIndexNext();15const bigIntIndexCurrent = require('fast-check').bigIntIndexCurrent;16const bigIntIndex = bigIntIndexCurrent();17const bigIntIndexNext = require('fast-check').bigIntIndexNext;18const bigIntIndex = bigIntIndexNext();19const bigIntIndexPrevious = require('fast-check').bigIntIndexPrevious;20const bigIntIndex = bigIntIndexPrevious();

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