How to use isBigInt method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

bigints.test.ts

Source:bigints.test.ts

1import { isBigInt } from '../src';2describe('BigInts (general)', () => {3  test('Throws error on missing argument', () => {4    expect(() => {5      isBigInt();6    }).toThrow('Missing argument');7  });8});9describe('BigInts (should return true)', () => {10  test('Returns true on BigInts', () => {11    const input1 = BigInt(9007199254740991);12    const input2 = BigInt('9007199254740991');13    const input3 = BigInt('0x1fffffffffffff');14    const input4 = BigInt('0o377777777777777777');15    const input5 = BigInt('0b11111111111111111111111111111111111111111111111111111');16    const result1 = isBigInt(input1);17    const result2 = isBigInt(input2);18    const result3 = isBigInt(input3);19    const result4 = isBigInt(input4);20    const result5 = isBigInt(input5);21    expect(result1).toBeTruthy();22    expect(result2).toBeTruthy();23    expect(result3).toBeTruthy();24    expect(result4).toBeTruthy();25    expect(result5).toBeTruthy();26  });27  test('Returns true on negative bigints', () => {28    const input1 = BigInt(-9007199254740991);29    const input2 = BigInt('-9007199254740991');30    const result1 = isBigInt(input1);31    const result2 = isBigInt(input2);32    expect(result1).toBeTruthy();33    expect(result2).toBeTruthy();34  });35});36describe('BigInts (should return false)', () => {37  test('Returns false on standard numbers', () => {38    const input1 = 1917;39    const input2 = -1917;40    const input3 = 9007199254740991;41    const result1 = isBigInt(input1);42    const result2 = isBigInt(input2);43    const result3 = isBigInt(input3);44    expect(result1).toBeFalsy();45    expect(result2).toBeFalsy();46    expect(result3).toBeFalsy();47  });48  test('Returns false on string form integer', () => {49    const input = '1917';50    const result = isBigInt(input);51    expect(result).toBeFalsy();52  });53  test('Returns false on float', () => {54    const input = 30.7;55    const result = isBigInt(input);56    expect(result).toBeFalsy();57  });58  test('Returns false on null', () => {59    const input = null;60    const result = isBigInt(input);61    expect(result).toBeFalsy();62  });63  test('Returns false on empty array', () => {64    const input = [];65    const result = isBigInt(input);66    expect(result).toBeFalsy();67  });68  test('Returns false on populated array', () => {69    const input = ['Revenger', 'Shadow Captain', 'Bone Silence'];70    const result = isBigInt(input);71    expect(result).toBeFalsy();72  });73  test('Returns false on object', () => {74    const input = { title: 'Bone Silence', author: 'Alastair Reynolds' };75    const result = isBigInt(input);76    expect(result).toBeFalsy();77  });78  test('Returns false on empty string', () => {79    const input = '';80    const result = isBigInt(input);81    expect(result).toBeFalsy();82  });83  test('Returns false on string', () => {84    const input = 'Today is a good day to die';85    const result = isBigInt(input);86    expect(result).toBeFalsy();87  });88  test('Returns false on bool value true', () => {89    const input = true;90    const result = isBigInt(input);91    expect(result).toBeFalsy();92  });93  test('Returns false on bool value false', () => {94    const input = false;95    const result = isBigInt(input);96    expect(result).toBeFalsy();97  });...

index.js

Source:index.js

...32		nonBigInts.push(Symbol.iterator, Symbol('foo'));33	}34	t.plan(nonBigInts.length);35	forEach(nonBigInts, function (nonBigInt) {36		t.equal(false, isBigInt(nonBigInt), debug(nonBigInt, 'is not a BigInt'));37	});38	t.end();39});40test('faked BigInt values', function (t) {41	t.test('real BigInt valueOf', { skip: !hasBigInts }, function (st) {42		var fakeBigInt = { valueOf: function () { return BigInt(42); } };43		st.equal(false, isBigInt(fakeBigInt), 'object with valueOf returning a BigInt is not a BigInt');44		st.end();45	});46	t.test('faked @@toStringTag', { skip: !hasBigInts || !hasSymbols || !Symbol.toStringTag }, function (st) {47		var fakeBigInt = { valueOf: function () { return BigInt(42); } };48		fakeBigInt[Symbol.toStringTag] = 'BigInt';49		st.equal(false, isBigInt(fakeBigInt), 'object with fake BigInt @@toStringTag and valueOf returning a BigInt is not a BigInt');50		var notSoFakeBigInt = { valueOf: function () { return 42; } };51		notSoFakeBigInt[Symbol.toStringTag] = 'BigInt';52		st.equal(false, isBigInt(notSoFakeBigInt), 'object with fake BigInt @@toStringTag and valueOf not returning a BigInt is not a BigInt');53		st.end();54	});55	var fakeBigIntString = { toString: function () { return '42n'; } };56	t.equal(false, isBigInt(fakeBigIntString), 'object with toString returning 42n is not a BigInt');57	t.end();58});59test('BigInt support', { skip: !hasBigInts }, function (t) {60	forEach([61		Function('return 42n')(), // eslint-disable-line no-new-func62		BigInt(42),63		Object(BigInt(42))64	], function (bigInt) {65		t.equal(true, isBigInt(bigInt), debug(bigInt, 'is a BigInt'));66	});67	t.end();...

Using AI Code Generation

1const { isBigInt } = require('fast-check');2console.log(isBigInt(1n));3console.log(isBigInt(1));4const { isBigInt } = require('node:util');5console.log(isBigInt(1n));6console.log(isBigInt(1));

Using AI Code Generation

1const { isBigInt } = require('fast-check');2const bigInt = 1234567890123456789012345678901234567890n;3console.log(isBigInt(bigInt));4console.log(isBigInt(123));5{6  "scripts": {7  },8  "dependencies": {9  }10}

Using AI Code Generation

1import { isBigInt } from 'fast-check'2console.log(isBigInt(1n))3{4 "scripts": {5 },6 "dependencies": {7 }8}

Using AI Code Generation

1const fc = require('fast-check');2const isBigInt = require('is-bigint');3const bigIntArb = fc.bigInt();4  .filter(isBigInt)5  .map(String)6  .forEach((x) => console.log(x));

Using AI Code Generation

1const fc = require('fast-check');2const bigInt = require('big-integer');3const isBigInt = require('is-bigint');4const isBig = (v) => isBigInt(v) || isBigInt(bigInt(v));5const test = () => {6    fc.assert(7        fc.property(8            fc.bigInt(),9            (v) => {10                console.log(v);11                console.log(isBig(v));12                return true;13            }14    );15};16test();17{18  "scripts": {19  },20  "dependencies": {21  }22}23module.exports = function isBigInt(v) {24  return v instanceof BigInt;25};26const {BigInt} = global;27module.exports = BigInt;28const {Arbitrary} = require('./definition/Arbitrary');29const {integer} = require('./IntegerArbitrary');30const {bigIntN} = require('./BigIntNArbitrary');31const {oneof} = require('./OneOfArbitrary');32const {frequency} = require('./FrequencyArbitrary');33const {map} = require('./MapArbitrary');34const {option} = require('./OptionArbitrary');35class BigIntArbitrary extends Arbitrary {36  constructor() {37    super();38  }39  generate(mrng) {40    const raw = integer().generate(mrng);41    return raw.value;42  }43  withBias(freq) {44    return frequency(45      {weight: 1, arbitrary: option(bigIntN(64))},46      {weight: 1, arbitrary: option(bigIntN(128))},47      {weight: 1, arbitrary: option(bigIntN(256))},48      {weight: 1, arbitrary: option(bigIntN(512))},49      {weight: 1, arbitrary: option(bigIntN(1024))

Using AI Code Generation

1const { isBigInt } = require('fast-check/lib/types/BigIntArbitrary');2const fc = require('fast-check');3const { is } = require('ramda');4const arb = fc.bigInt();5const isBigIntArb = isBigInt(arb);6console.log(isBigIntArb);7console.log(is(fc.bigInt(), arb));8console.log(isBigIntArb === true);9console.log(is(fc.bigInt(), arb) === true);10console.log(isBigIntArb === is(fc.bigInt(), arb));

Using AI Code Generation

1const {isBigInt} = require('fast-check');2const value = BigInt(1);3console.log(isBigInt(value));4isBigInt(value)5const {isBigInt} = require('fast-check');6const value = BigInt(1);7console.log(isBigInt(value));

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