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How to use bigIntLogLike method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

BiasNumericRange.spec.ts

1import * as fc from 'fast-check';2import {3  biasNumericRange,4  bigIntLogLike,5  integerLogLike,6} from '../../../../../src/arbitrary/_internals/helpers/BiasNumericRange';7describe('biasNumericRange', () => {8  it('should bias close to extreme values and zero if min and max have opposite signs', () =>9    fc.assert(10      fc.property(11        fc.integer({ min: Number.MIN_SAFE_INTEGER, max: -1 }),12        fc.integer({ min: 1, max: Number.MAX_SAFE_INTEGER }),13        (min, max) => {14          // Arrange / Act15          const ranges = biasNumericRange(min, max, integerLogLike);16          // Assert17          expect(ranges).toHaveLength(3);18          expect(ranges).toEqual([19            { min: expect.toBeWithinRange(min, 0), max: expect.toBeWithinRange(0, max) }, // close to zero20            { min: expect.toBeWithinRange(0, max), max: max }, // close to max21            { min: min, max: expect.toBeWithinRange(min, 0) }, // close to min22          ]);23        }24      )25    ));26  it('should bias close to extreme values if min and max have same signs', () =>27    fc.assert(28      fc.property(29        fc.constantFrom(1, -1),30        fc.integer({ min: 0, max: Number.MAX_SAFE_INTEGER }),31        fc.integer({ min: 0, max: Number.MAX_SAFE_INTEGER }),32        (sign, minRaw, maxRaw) => {33          // Arrange34          fc.pre(minRaw !== maxRaw);35          const minRawSigned = sign * minRaw;36          const maxRawSigned = sign * maxRaw;37          const [min, max] = minRawSigned < maxRawSigned ? [minRawSigned, maxRawSigned] : [maxRawSigned, minRawSigned];38          // Act39          const ranges = biasNumericRange(min, max, integerLogLike);40          // Assert41          expect(ranges).toHaveLength(2);42          const closeToMin = { min: expect.toBeWithinRange(min + 1, max), max: max }; // close to max43          const closeToMax = { min: min, max: expect.toBeWithinRange(min, max - 1) }; // close to min44          if (sign > 0) expect(ranges).toEqual([closeToMax, closeToMin]);45          else expect(ranges).toEqual([closeToMin, closeToMax]);46        }47      )48    ));49  it('should not bias anything for equal values of min and max', () =>50    fc.assert(51      fc.property(fc.maxSafeInteger(), (minMax) => {52        // Arrange / Act53        const ranges = biasNumericRange(minMax, minMax, integerLogLike);54        // Assert55        expect(ranges).toHaveLength(1);56        expect(ranges).toEqual([{ min: minMax, max: minMax }]); // no bias, cannot do more57      })58    ));59  it('should always bias in valid ranges when using integerLogLike', () =>60    fc.assert(61      fc.property(fc.maxSafeInteger(), fc.maxSafeInteger(), (a, b) => {62        // Arrange63        const min = a < b ? a : b;64        const max = a < b ? b : a;65        // Act66        const ranges = biasNumericRange(min, max, integerLogLike);67        // Assert68        expect(ranges).not.toHaveLength(0);69        for (const range of ranges) {70          expect(range.max).toBeGreaterThanOrEqual(range.min);71          expect(min).toBeLessThanOrEqual(range.max);72          expect(max).toBeGreaterThanOrEqual(range.max);73          expect(min).toBeLessThanOrEqual(range.min);74          expect(max).toBeGreaterThanOrEqual(range.min);75        }76      })77    ));78  if (typeof BigInt !== 'undefined') {79    it('should always bias in valid ranges when using bigIntLogLike', () =>80      fc.assert(81        fc.property(fc.bigInt(), fc.bigInt(), (a, b) => {82          // Arrange83          const min = a < b ? a : b;84          const max = a < b ? b : a;85          // Act86          const ranges = biasNumericRange(min, max, bigIntLogLike);87          // Assert88          expect(ranges).not.toHaveLength(0);89          for (const range of ranges) {90            expect(range.max).toBeGreaterThanOrEqual(range.min);91            expect(min).toBeLessThanOrEqual(range.max);92            expect(max).toBeGreaterThanOrEqual(range.max);93            expect(min).toBeLessThanOrEqual(range.min);94            expect(max).toBeGreaterThanOrEqual(range.min);95          }96        })97      ));98  }99});100// Helpers101expect.extend({102  toBeWithinRange(received, floor, ceiling): jest.CustomMatcherResult {103    const pass = received >= floor && received <= ceiling && !Number.isNaN(received);104    return {105      message: () => `expected ${received} ${pass ? 'not ' : ''} to be within range ${floor} - ${ceiling}`,106      pass,107    };108  },109});110declare global {111  // eslint-disable-next-line @typescript-eslint/no-namespace112  namespace jest {113    interface Expect {114      toBeWithinRange(a: number, b: number): CustomMatcherResult;115    }116  }...

BigIntArbitrary.ts

Source: BigIntArbitrary.ts

1import { Random } from '../../random/generator/Random';2import { Stream } from '../../stream/Stream';3import { Arbitrary } from '../../check/arbitrary/definition/Arbitrary';4import { Value } from '../../check/arbitrary/definition/Value';5import { biasNumericRange, bigIntLogLike } from './helpers/BiasNumericRange';6import { shrinkBigInt } from './helpers/ShrinkBigInt';7import { BigInt } from '../../utils/globals';8/** @internal */9export class BigIntArbitrary extends Arbitrary<bigint> {10  constructor(readonly min: bigint, readonly max: bigint) {11    super();12  }13  generate(mrng: Random, biasFactor: number | undefined): Value<bigint> {14    const range = this.computeGenerateRange(mrng, biasFactor);15    return new Value(mrng.nextBigInt(range.min, range.max), undefined);16  }17  private computeGenerateRange(mrng: Random, biasFactor: number | undefined): { min: bigint; max: bigint } {18    if (biasFactor === undefined || mrng.nextInt(1, biasFactor) !== 1) {19      return { min: this.min, max: this.max };20    }21    const ranges = biasNumericRange(this.min, this.max, bigIntLogLike);22    if (ranges.length === 1) {23      return ranges[0];24    }25    const id = mrng.nextInt(-2 * (ranges.length - 1), ranges.length - 2); // 1st range has the highest priority26    return id < 0 ? ranges[0] : ranges[id + 1];27  }28  canShrinkWithoutContext(value: unknown): value is bigint {29    return typeof value === 'bigint' && this.min <= value && value <= this.max;30  }31  shrink(current: bigint, context?: unknown): Stream<Value<bigint>> {32    if (!BigIntArbitrary.isValidContext(current, context)) {33      // No context:34      //   Take default target and shrink towards it35      //   Try the target on first try36      const target = this.defaultTarget();37      return shrinkBigInt(current, target, true);38    }39    if (this.isLastChanceTry(current, context)) {40      // Last chance try...41      // context is set to undefined, so that shrink will restart42      // without any assumptions in case our try find yet another bug43      return Stream.of(new Value(context, undefined));44    }45    // Normal shrink process46    return shrinkBigInt(current, context, false);47  }48  private defaultTarget(): bigint {49    // min <= 0 && max >= 0   => shrink towards zero50    if (this.min <= 0 && this.max >= 0) {51      return BigInt(0);52    }53    // min < 0                => shrink towards max (closer to zero)54    // otherwise              => shrink towards min (closer to zero)55    return this.min < 0 ? this.max : this.min;56  }57  private isLastChanceTry(current: bigint, context: bigint): boolean {58    // Last chance corresponds to scenario where shrink should be empty59    // But we try a last thing just in case it can work60    if (current > 0) return current === context + BigInt(1) && current > this.min;61    if (current < 0) return current === context - BigInt(1) && current < this.max;62    return false;63  }64  private static isValidContext(current: bigint, context?: unknown): context is bigint {65    // Context contains a value between zero and current that is known to be66    // the closer to zero passing value*.67    // *More precisely: our shrinker will not try something closer to zero68    if (context === undefined) {69      return false;70    }71    if (typeof context !== 'bigint') {72      throw new Error(`Invalid context type passed to BigIntArbitrary (#1)`);73    }74    const differentSigns = (current > 0 && context < 0) || (current < 0 && context > 0);75    if (context !== BigInt(0) && differentSigns) {76      throw new Error(`Invalid context value passed to BigIntArbitrary (#2)`);77    }78    return true;79  }...

BiasNumericRange.ts

Source: BiasNumericRange.ts

...5export function integerLogLike(v: number): number {6  return safeMathFloor(safeMathLog(v) / safeMathLog(2));7}8/** @internal */9export function bigIntLogLike(v: bigint): bigint {10  if (v === BigInt(0)) return BigInt(0);11  return BigInt(String(v).length);12}13/** @internal */14function biasNumericRange(min: number, max: number, logLike: (n: number) => number): { min: number; max: number }[];15function biasNumericRange(min: bigint, max: bigint, logLike: (n: bigint) => bigint): { min: bigint; max: bigint }[];16function biasNumericRange<NType extends number | bigint>(17  min: NType,18  max: NType,19  logLike: (n: NType) => NType20): { min: NType; max: NType }[] {21  if (min === max) {22    return [{ min: min, max: max }];23  }...

Using AI Code Generation

1const fc = require('fast-check');2const bigIntLogLike = require('fast-check-monorepo');3fc.assert(4  fc.property(fc.bigInt(), fc.bigInt(), (a, b) => {5    const logA = bigIntLogLike(a, b);6    const logB = bigIntLogLike(b, a);7    return logA === logB;8  })9);10const fc = require('fast-check');11const bigIntLogLike = require('fast-check-monorepo');12fc.assert(13  fc.property(fc.bigInt(), fc.bigInt(), (a, b) => {14    const logA = bigIntLogLike(a, b);15    const logB = bigIntLogLike(b, a);16    return logA === logB;17  })18);19const fc = require('fast-check');20const bigIntLogLike = require('fast-check-monorepo');21fc.assert(22  fc.property(fc.bigInt(), fc.bigInt(), (a, b) => {23    const logA = bigIntLogLike(a, b);24    const logB = bigIntLogLike(b, a);25    return logA === logB;26  })27);28const fc = require('fast-check');29const bigIntLogLike = require('fast-check-monorepo');30fc.assert(31  fc.property(fc.bigInt(), fc.bigInt(), (a, b) => {32    const logA = bigIntLogLike(a, b);33    const logB = bigIntLogLike(b, a);34    return logA === logB;35  })36);37const fc = require('fast-check');38const bigIntLogLike = require('fast-check-monorepo');39fc.assert(40  fc.property(fc.bigInt(), fc.bigInt(), (a, b) => {41    const logA = bigIntLogLike(a, b);42    const logB = bigIntLogLike(b, a);43    return logA === logB;44  })45);

Using AI Code Generation

1import * as fc from 'fast-check';2import { bigIntLogLike } from 'fast-check-monorepo';3const arb = bigIntLogLike({min: -100, max: 100});4fc.assert(fc.property(arb, (a) => {5    console.log(a);6    return true;7}));8import * as fc from 'fast-check';9import { bigIntLogLike } from 'fast-check-monorepo';10const arb = bigIntLogLike({min: -100, max: 100});11fc.assert(fc.property(arb, (a) => {12    console.log(a);13    return true;14}));15import * as fc from 'fast-check';16import { bigIntLogLike } from 'fast-check-monorepo';17const arb = bigIntLogLike({min: -100, max: 100});18fc.assert(fc.property(arb, (a) => {19    console.log(a);20    return true;21}));22import * as fc from 'fast-check';23import { bigIntLogLike } from 'fast-check-monorepo';24const arb = bigIntLogLike({min: -100, max: 100});25fc.assert(fc.property(arb, (a) => {26    console.log(a);27    return true;28}));29import * as fc from 'fast-check';30import { bigIntLogLike } from 'fast-check-monorepo';31const arb = bigIntLogLike({min: -100, max: 100});32fc.assert(fc.property(arb, (a) => {33    console.log(a);34    return true;35}));36import * as fc from 'fast-check';37import { bigIntLogLike } from 'fast-check-monorepo';38const arb = bigIntLogLike({min: -100, max: 100});39fc.assert(fc.property(arb, (a) => {40    console.log(a);41    return true;

Using AI Code Generation

1const { bigIntLogLike } = require('fast-check-monorepo')2const { bigInt } = require('fast-check')3const fc = require('fast-check')4const { property } = require('fast-check')5const { check } = require('fast-check')6const add = (a, b) => a + b7const addProperty = (a, b) => add(a, b) === a + b8check(property(bigInt(), bigInt(), addProperty))9check(property(bigIntLogLike(), bigIntLogLike(), addProperty))10check(property(bigInt(), bigInt(), addProperty))11check(property(bigIntLogLike(), bigIntLogLike(), addProperty))12check(property(bigInt(), bigInt(), addProperty))13check(property(bigIntLogLike(), bigIntLogLike(), addProperty))14check(property(bigInt(), bigInt(), addProperty))15check(property(bigIntLogLike(), bigIntLogLike(), addProperty))16check(property(bigInt(), bigInt(), addProperty))17check(property(bigIntLogLike(), bigIntLogLike(), addProperty))18check(property(bigInt(), bigInt(), addProperty))19check(property(bigIntLogLike(), bigIntLogLike(), addProperty))20check(property(bigInt(), bigInt(), addProperty))21check(property(bigIntLogLike(), bigIntLogLike(), addProperty))22check(property(bigInt(), bigInt(), addProperty))23check(property(bigIntLogLike(), bigIntLogLike(), addProperty))24check(property(bigInt(), bigInt(), addProperty))25check(property(bigIntLogLike(), bigIntLogLike(), addProperty))26check(property(bigInt(), bigInt(), addProperty))

Using AI Code Generation

1const fc = require('fast-check');2const bigIntLogLike = require('fast-check-monorepo/bigIntLogLike');3const test3 = fc.property(4  bigIntLogLike(0n, 100n),5  (n) => {6    console.log(n);7  }8);9fc.assert(test3);10const fc = require('fast-check');11const bigIntLogLike = require('fast-check-monorepo/bigIntLogLike');12const test4 = fc.property(13  bigIntLogLike(0n, 100n),14  (n) => {15    console.log(n);16  }17);18fc.assert(test4);19const fc = require('fast-check');20const bigIntLogLike = require('fast-check-monorepo/bigIntLogLike');21const test5 = fc.property(22  bigIntLogLike(0n, 100n),23  (n) => {24    console.log(n);25  }26);27fc.assert(test5);28const fc = require('fast-check');29const bigIntLogLike = require('fast-check-monorepo/bigIntLogLike');30const test6 = fc.property(31  bigIntLogLike(0n, 100n),32  (n) => {33    console.log(n);34  }35);36fc.assert(test6);37const fc = require('fast-check');38const bigIntLogLike = require('fast-check-monorepo/bigIntLogLike');39const test7 = fc.property(40  bigIntLogLike(0n, 100n),41  (n) => {42    console.log(n);43  }44);45fc.assert(test7);46const fc = require('fast-check');47const bigIntLogLike = require('fast-check-monorepo/bigIntLogLike');48const test8 = fc.property(49  bigIntLogLike(0n, 100n),50  (n) => {51    console.log(n);

Using AI Code Generation

1const { bigIntLogLike } = require("fast-check");2const { logLike } = require("fast-check");3const fc = require("fast-check");4const { bigInt, binary } = require("fast-check");5const { bigIntN } = require("fast-check");6const { bigUintN } = require("fast-check");7const { bigUint } = require("fast-check");8const { bigInt64Array } = require("fast-check");9const { bigUint64Array } = require("fast-check");10const { bigInt32Array } = require("fast-check");11const { bigUint32Array } = require("fast-check");12const { bigInt16Array } = require("fast-check");13const { bigUint16Array } = require("fast-check");14const { bigInt8Array } = require("fast-check");15const { bigUint8Array } = require("fast-check");16const { bigInt8ClampedArray } = require("fast-check");17const { bigUint8ClampedArray } = require("fast-check");18const { bigIntUint8ClampedArray } = require("fast-check");19const { bigIntUint8Array } = require("fast-check");20const { bigIntUint16Array } = require("fast-check");21const { bigIntUint32Array } = require("fast-check");22const { bigIntUint64Array } = require("fast-check");23const { bigIntInt8Array } = require("fast-check");24const { bigIntInt16Array } = require("fast-check");25const { bigIntInt32Array } = require("fast-check");26const { bigIntInt64Array } = require("fast-check");27const { bigIntUint8ClampedArray } = require("fast-check");28const { bigIntUint8Array } = require("fast-check");29const { bigIntUint16Array } = require("fast-check");30const { bigIntUint32Array } = require("fast-check");31const { bigIntUint64Array } = require("fast-check");32const { bigIntInt8Array } = require("fast-check");33const { bigIntInt16Array } = require("fast-check");34const { bigIntInt32Array } = require("fast-check");35const { bigIntInt64Array } = require("fast-check");36const { bigIntUint8ClampedArray } = require("fast-check");37const { bigIntUint8Array } = require("fast

Using AI Code Generation

1const { bigIntLogLike } = require('fast-check');2const { logLike } = require('fast-check');3const { bigInt } = require('big-integer');4const { random } = require('fast-check');5const x = bigIntLogLike(1, 10);6console.log(x);7const y = logLike(1, 10);8console.log(y);9const z = random(1, 10);10console.log(z);11const a = bigInt(1);12console.log(a);13const b = bigInt(10);14console.log(b);15const { bigIntLogLike } = require('fast-check');16const { logLike } = require('fast-check');17const { bigInt } = require('big-integer');18const { random } = require('fast-check');19const x = bigIntLogLike(1, 10);20console.log(x);21const y = logLike(1, 10);22console.log(y);23const z = random(1, 10);24console.log(z);25const a = bigInt(1);26console.log(a);27const b = bigInt(10);28console.log(b);29const { bigIntLogLike } = require('fast-check-monorepo');30const { logLike } = require('fast-check-monorepo');31const { bigInt } = require('big-integer');32const { random } = require('fast-check-monorepo');33const x = bigIntLogLike(1, 10);34console.log(x);35const y = logLike(1, 10);36console.log(y);37const z = random(1, 10);38console.log(z);39const a = bigInt(1);40console.log(a);41const b = bigInt(10);42console.log(b);43const { bigIntLogLike } = require('fast-check');44const { logLike } = require('fast-check');45const { bigInt } = require('big-integer');46const { random } = require('fast-check');47const x = bigIntLogLike(1, 10);48console.log(x);49const y = logLike(1, 10);50console.log(y);51const z = random(1, 10);52console.log(z);53const a = bigInt(1

Using AI Code Generation

1import { BigIntLogLike } from 'fast-check';2import { bigIntLogLike } from 'fast-check-monorepo';3const bigIntLogLikeArb = bigIntLogLike({min: 1n, max: 100n});4const bigIntLogLikeArb = bigIntLogLike({min: 1n, max: 100n});5describe('BigIntLogLike', () => {6  it('should generate BigIntLogLike values', () => {7    const min = 1n;8    const max = 100n;9    const bigIntLogLikeArb = bigIntLogLike({min, max});10    const out = bigIntLogLikeArb.generate(mrng());11    expect(out.value).toBeGreaterThanOrEqual(min);12    expect(out.value).toBeLessThanOrEqual(max);13  });14});15import { BigIntLogLike } from 'fast-check';16import { bigIntLogLike } from 'fast-check-monorepo';17const bigIntLogLikeArb = bigIntLogLike({min: 1n, max: 100n});18const bigIntLogLikeArb = bigIntLogLike({min: 1n, max: 100n});19describe('BigIntLogLike', () => {20  it('should generate BigIntLogLike values', () => {21    const min = 1n;22    const max = 100n;23    const bigIntLogLikeArb = bigIntLogLike({min, max});24    const out = bigIntLogLikeArb.generate(mrng());25    expect(out.value).toBeGreaterThanOrEqual(min);26    expect(out.value).toBeLessThanOrEqual(max);27  });28});29import { BigIntLogLike } from 'fast-check';30import { bigIntLogLike } from 'fast-check-monorepo';31const bigIntLogLikeArb = bigIntLogLike({min: 1n

Using AI Code Generation

1const { bigIntLogLike } = require("fast-check");2const { bigInt } = require("big-integer");3const { log } = console;4const { logLike } = bigIntLogLike();5const { random } = Math;6const { floor } = Math;7const { min } = Math;8const { max } = Math;9const { abs } = Math;10const { round } = Math;11const { pow } = Math;12const { PI } = Math;13const { sqrt } = Math;14const { atan } = Math;15const { cos } = Math;16const { sin } = Math;17const { tan } = Math;18const { exp } = Math;19const { log2 } = Math;20const { log10 } = Math;21const { E } = Math;22const { LN2 } = Math;23const { LN10 } = Math;24const { minSafeInteger } = Number;25const { maxSafeInteger } = Number;26const { MIN_VALUE } = Number;27const { MAX_VALUE } = Number;28const { NEGATIVE_INFINITY } = Number;29const { POSITIVE_INFINITY } = Number;30const { NaN } = Number;31const { isFinite } = Number;32const { isInteger } = Number;33const { isNaN } = Number;34const { isSafeInteger } = Number;35const { EPSILON } = Number;36const { isInteger: isInteger2 } = Number;37const { isSafeInteger: isSafeInteger2 } = Number;38const { isFinite: isFinite2 } = Number;39const { isNaN: isNaN2 } = Number;40const { isInteger: isInteger3 } = Number;41const { isSafeInteger: isSafeInteger3 } = Number;42const { isFinite: isFinite3 } = Number;43const { isNaN: isNaN3 } = Number;44const { isInteger: isInteger4 } = Number;45const { isSafeInteger: isSafeInteger4 } = Number;46const { isFinite: isFinite4 } = Number;47const { isNaN: isNaN4 } = Number;48const { isInteger: isInteger5 } = Number;49const { isSafeInteger: isSafeInteger5 } = Number;50const { isFinite: isFinite5 } = Number;51const { isNaN: isNaN5 } = Number;52const { isInteger: isInteger6 } = Number;53const { isSafeInteger: isSafeInteger6 } = Number;

Using AI Code Generation

1import { bigIntLogLike } from 'fast-check';2import { BigIntLogLike } from 'fast-check';3const min = BigInt(0);4const max = BigInt(10000000);5const range = new BigIntLogLike(min, max);6const bigInt = bigIntLogLike(range);7console.log(bigInt);8console.log(range);9console.log(range.toString());10console.log(range.toString((min, max) => `min: ${min}, max: ${max}`));11console.log(range.toString((min, max) => `min: ${min}, max: ${max}`, ' | '));12console.log(range.toString((min, max) => `min: ${min}, max: ${max}`, ' | ', ' | '));13console.log(range.toString((min, max) => `min: ${min}, max: ${max}`, ' | ', ' | ', ' | '));14console.log(range.toString((min, max) => `min: ${min}, max: ${max}`, ' | ', ' | ', ' | ', ' | '));15console.log(range.toString((min, max) => `min: ${min}, max: ${max}`, ' | ', ' | ', ' | ', ' | ', ' | '));16console.log(range.toString((min, max) => `min: ${min}, max: ${max}`, ' | ', ' | ', ' | ', ' | ', ' | ', ' | '));

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