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How to use rescaledLengthB method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

SubarrayArbitrary.spec.ts

1import * as fc from 'fast-check';2import { SubarrayArbitrary } from '../../../../src/arbitrary/_internals/SubarrayArbitrary';3import {4  assertProduceSameValueGivenSameSeed,5  assertProduceCorrectValues,6  assertProduceValuesShrinkableWithoutContext,7  assertShrinkProducesSameValueWithoutInitialContext,8  assertShrinkProducesStrictlySmallerValue,9} from '../__test-helpers__/ArbitraryAssertions';10function beforeEachHook() {11  jest.resetModules();12  jest.restoreAllMocks();13  fc.configureGlobal({ beforeEach: beforeEachHook });14}15beforeEach(beforeEachHook);16describe('SubarrayArbitrary', () => {17  describe('constructor', () => {18    it('should raise an error whenever minLength is below zero', () => {19      fc.assert(20        fc.property(21          fc.array(fc.integer()),22          fc.nat(),23          fc.nat(),24          fc.boolean(),25          (originalArray, minLengthSeed, maxLengthSeed, isOrdered) => {26            // Arrange27            const minLength = -minLengthSeed - 1;28            const maxLength = maxLengthSeed % (originalArray.length + 1);29            // Act / Assert30            expect(() => {31              new SubarrayArbitrary(originalArray, isOrdered, minLength, maxLength);32            }).toThrowError(/minimal length to be between 0/);33          }34        )35      );36    });37    it('should raise an error whenever minLength is greater than array size', () => {38      fc.assert(39        fc.property(40          fc.array(fc.integer()),41          fc.nat(),42          fc.nat(),43          fc.boolean(),44          (originalArray, minLengthOffsetToLength, maxLengthSeed, isOrdered) => {45            // Arrange46            const minLength = originalArray.length + minLengthOffsetToLength + 1;47            const maxLength = maxLengthSeed % (originalArray.length + 1);48            // Act / Assert49            expect(() => {50              new SubarrayArbitrary(originalArray, isOrdered, minLength, maxLength);51            }).toThrowError(/minimal length to be between 0/);52          }53        )54      );55    });56    it('should raise an error whenever maxLength is below zero', () => {57      fc.assert(58        fc.property(59          fc.array(fc.integer()),60          fc.nat(),61          fc.nat(),62          fc.boolean(),63          (originalArray, maxLengthSeed, minLengthSeed, isOrdered) => {64            // Arrange65            const minLength = minLengthSeed % (originalArray.length + 1);66            const maxLength = -maxLengthSeed - 1;67            // Act / Assert68            expect(() => {69              new SubarrayArbitrary(originalArray, isOrdered, minLength, maxLength);70            }).toThrowError(/maximal length to be between 0/);71          }72        )73      );74    });75    it('should raise an error whenever maxLength is greater than array size', () => {76      fc.assert(77        fc.property(78          fc.array(fc.integer()),79          fc.nat(),80          fc.nat(),81          fc.boolean(),82          (originalArray, maxLengthOffsetToLength, minLengthSeed, isOrdered) => {83            // Arrange84            const minLength = minLengthSeed % (originalArray.length + 1);85            const maxLength = originalArray.length + maxLengthOffsetToLength + 1;86            // Act / Assert87            expect(() => {88              new SubarrayArbitrary(originalArray, isOrdered, minLength, maxLength);89            }).toThrowError(/maximal length to be between 0/);90          }91        )92      );93    });94    it('should raise an error whenever minLength is greater than maxLength', () => {95      fc.assert(96        fc.property(97          fc98            .tuple(fc.nat(100), fc.nat(100))99            .map(([a, b]) => (a < b ? [a, b] : [b, a]))100            .filter(([a, b]) => a !== b),101          fc.nat(100),102          fc.boolean(),103          (minMax, offset, isOrdered) => {104            // Arrange105            const [maxLength, minLength] = minMax;106            const originalArray = [...Array(minMax[1] + offset)].map((_) => 0);107            // Act / Assert108            expect(() => {109              new SubarrayArbitrary(originalArray, isOrdered, minLength, maxLength);110            }).toThrowError(/minimal length to be inferior or equal to the maximal length/);111          }112        )113      );114    });115    it('should accept any valid combination of inputs', () => {116      fc.assert(117        fc.property(118          fc119            .tuple(fc.nat(100), fc.nat(100))120            .map(([a, b]) => (a < b ? [a, b] : [b, a]))121            .filter(([a, b]) => a !== b),122          fc.nat(100),123          fc.boolean(),124          (minMax, offset, isOrdered) => {125            // Arrange126            const [minLength, maxLength] = minMax;127            const originalArray = [...Array(minMax[1] + offset)].map((_) => 0);128            // Act / Assert129            expect(() => {130              new SubarrayArbitrary(originalArray, isOrdered, minLength, maxLength);131            }).not.toThrow();132          }133        )134      );135    });136  });137});138describe('SubarrayArbitrary (integration)', () => {139  type Extra = {140    data: number[];141    isOrdered: boolean;142    minLength: number;143    maxLength: number;144  };145  const extraParameters: fc.Arbitrary<Extra> = fc146    .record({147      data: fc.array(fc.integer()),148      isOrdered: fc.boolean(),149      lengthA: fc.nat(),150      lengthB: fc.nat(),151    })152    .map((ct) => {153      const rescaledLengthA = ct.lengthA % (ct.data.length + 1);154      const rescaledLengthB = ct.lengthB % (ct.data.length + 1);155      return {156        data: ct.data,157        isOrdered: ct.isOrdered,158        minLength: Math.min(rescaledLengthA, rescaledLengthB),159        maxLength: Math.max(rescaledLengthA, rescaledLengthB),160      };161    });162  const isCorrect = (arr: number[], ct: Extra) => {163    expect(arr.length).toBeGreaterThanOrEqual(ct.minLength);164    expect(arr.length).toBeLessThanOrEqual(ct.maxLength);165    if (ct.isOrdered) expect(isOrderedSubarray(ct.data, arr)).toBe(true);166    else expect(isSubarray(ct.data, arr)).toBe(true);167  };168  const SubarrayArbitraryBuilder = (extra: Extra) =>169    new SubarrayArbitrary(extra.data, extra.isOrdered, extra.minLength, extra.maxLength);170  it('should produce the same values given the same seed', () => {171    assertProduceSameValueGivenSameSeed(SubarrayArbitraryBuilder, { extraParameters });172  });173  it('should only produce correct values', () => {174    assertProduceCorrectValues(SubarrayArbitraryBuilder, isCorrect, { extraParameters });175  });176  it('should produce values seen as shrinkable without any context', () => {177    assertProduceValuesShrinkableWithoutContext(SubarrayArbitraryBuilder, { extraParameters });178  });179  it('should be able to shrink to the same values without initial context', () => {180    assertShrinkProducesSameValueWithoutInitialContext(SubarrayArbitraryBuilder, { extraParameters });181  });182  it('should preserve strictly smaller ordering in shrink', () => {183    assertShrinkProducesStrictlySmallerValue(SubarrayArbitraryBuilder, isStrictlySmallerValue, { extraParameters });184  });185});186// Helpers187function isOrderedSubarray(originalArray: number[], subarray: number[]): boolean {188  let idxOriginal = 0;189  for (let idx = 0; idx !== subarray.length; ++idx) {190    while (originalArray[idxOriginal] !== subarray[idx]) {191      ++idxOriginal;192      if (idxOriginal >= originalArray.length) return false;193    }194    ++idxOriginal;195  }196  return true;197}198function isSubarray(originalArray: number[], subarray: number[]): boolean {199  return isOrderedSubarray(200    [...originalArray].sort((a, b) => a - b),201    [...subarray].sort((a, b) => a - b)202  );203}204function isStrictlySmallerValue(current: number[], prev: number[]): boolean {205  return isOrderedSubarray(prev, current);...

Using AI Code Generation

1const {rescaledLengthB} = require('fast-check-monorepo');2console.log(rescaledLengthB([1, 2, 3, 4, 5]));3const {rescaledLengthC} = require('fast-check-monorepo');4console.log(rescaledLengthC([1, 2, 3, 4, 5]));5const {rescaledLengthD} = require('fast-check-monorepo');6console.log(rescaledLengthD([1, 2, 3, 4, 5]));7const {rescaledLengthE} = require('fast-check-monorepo');8console.log(rescaledLengthE([1, 2, 3, 4, 5]));9const {rescaledLengthF} = require('fast-check-monorepo');10console.log(rescaledLengthF([1, 2, 3, 4, 5]));11const {rescaledLengthG} = require('fast-check-monorepo');12console.log(rescaledLengthG([1, 2, 3, 4, 5]));13const {rescaledLengthH} = require('fast-check-monorepo');14console.log(rescaledLengthH([1, 2, 3, 4, 5]));

Using AI Code Generation

1const fc = require('fast-check');2const fcMonorepo = require('fast-check-monorepo');3const {rescaledLengthB} = fcMonorepo;4const {rescaledLength} = fc;5const {property} = fc;6const {string} = fc;7const {integer} = fc;8const {max} = Math;9const {abs} = Math;10const {floor} = Math;11const {log2} = Math;12const {round} = Math;13const {pow} = Math;14const {min} = Math;

Using AI Code Generation

1const {rescaledLengthB} = require('fast-check-monorepo');2const a = rescaledLengthB(1, 2, 3);3console.log(a);4{5  "scripts": {6  },7  "dependencies": {8  }9}

Using AI Code Generation

1const { rescaledLengthB } = require('fast-check-monorepo');2console.log(rescaledLengthB(3, 5));3const { rescaledLengthB } = require('fast-check-monorepo');4console.log(rescaledLengthB(3, 5));5const { rescaledLengthB } = require('fast-check-monorepo');6console.log(rescaledLengthB(3, 5));7const { rescaledLengthB } = require('fast-check-monorepo');8console.log(rescaledLengthB(3, 5));9const { rescaledLengthB } = require('fast-check-monorepo');10console.log(rescaledLengthB(3, 5));11const { rescaledLengthB } = require('fast-check-monorepo');12console.log(rescaledLengthB(3, 5));13const { rescaledLengthB } = require('fast-check-monorepo');14console.log(rescaledLengthB(3, 5));15const { rescaledLengthB } = require('fast-check-monorepo');16console.log(rescaledLengthB(3, 5));17const { rescaledLengthB } = require('fast-check-monorepo');18console.log(rescaledLengthB(3, 5));19const { rescaledLengthB } = require('fast-check-monorepo');20console.log(rescaledLengthB(3, 5));

Using AI Code Generation

1const fc = require("fast-check");2const { rescaledLengthB } = require("fast-check-monorepo");3const rescaledLength = rescaledLengthB(0.5, 2, 0.5, 1);4fc.assert(5  fc.property(fc.integer(0, 100), fc.integer(0, 100), (a, b) => {6    return rescaledLength(a, b) >= 0.5 && rescaledLength(a, b) <= 1;7  })8);

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