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How to use slicedGenerator method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

SlicedBasedGenerator.ts

Source:SlicedBasedGenerator.ts

1import { Arbitrary } from '../../../check/arbitrary/definition/Arbitrary';2import { Value } from '../../../check/arbitrary/definition/Value';3import { Random } from '../../../random/generator/Random';4import { safePush } from '../../../utils/globals';5import { SlicedGenerator } from '../interfaces/SlicedGenerator';6const safeMathMin = Math.min;7const safeMathMax = Math.max;8/** @internal */9export class SlicedBasedGenerator<T> implements SlicedGenerator<T> {10  private activeSliceIndex = 0;11  private nextIndexInSlice = 0; // the next index to take from the slice12  private lastIndexInSlice = -1; // the last index accepted for the current slice13  constructor(14    private readonly arb: Arbitrary<T>,15    private readonly mrng: Random,16    private readonly slices: T[][],17    private readonly biasFactor: number18  ) {}19  attemptExact(targetLength: number): void {20    if (targetLength !== 0 && this.mrng.nextInt(1, this.biasFactor) === 1) {21      // Let's setup the generator for exact matching if any possible22      const eligibleIndices: number[] = [];23      for (let index = 0; index !== this.slices.length; ++index) {24        const slice = this.slices[index];25        if (slice.length === targetLength) {26          safePush(eligibleIndices, index);27        }28      }29      if (eligibleIndices.length === 0) {30        return;31      }32      this.activeSliceIndex = eligibleIndices[this.mrng.nextInt(0, eligibleIndices.length - 1)];33      this.nextIndexInSlice = 0;34      this.lastIndexInSlice = targetLength - 1;35    }36  }37  next(): Value<T> {38    if (this.nextIndexInSlice <= this.lastIndexInSlice) {39      // We continue on the previously selected slice40      return new Value(this.slices[this.activeSliceIndex][this.nextIndexInSlice++], undefined);41    }42    if (this.mrng.nextInt(1, this.biasFactor) !== 1) {43      // We don't use the slices44      return this.arb.generate(this.mrng, this.biasFactor);45    }46    // We update the active slice47    this.activeSliceIndex = this.mrng.nextInt(0, this.slices.length - 1);48    const slice = this.slices[this.activeSliceIndex];49    if (this.mrng.nextInt(1, this.biasFactor) !== 1) {50      // We will consider the whole slice and not a sub-set of it51      this.nextIndexInSlice = 1;52      this.lastIndexInSlice = slice.length - 1;53      return new Value(slice[0], undefined);54    }55    const rangeBoundaryA = this.mrng.nextInt(0, slice.length - 1);56    const rangeBoundaryB = this.mrng.nextInt(0, slice.length - 1);57    this.nextIndexInSlice = safeMathMin(rangeBoundaryA, rangeBoundaryB);58    this.lastIndexInSlice = safeMathMax(rangeBoundaryA, rangeBoundaryB);59    return new Value(slice[this.nextIndexInSlice++], undefined);60  }...

BuildSlicedGenerator.ts

Source:BuildSlicedGenerator.ts

1import { Arbitrary } from '../../../check/arbitrary/definition/Arbitrary';2import { Random } from '../../../random/generator/Random';3import { NoopSlicedGenerator } from '../implementations/NoopSlicedGenerator';4import { SlicedBasedGenerator } from '../implementations/SlicedBasedGenerator';5import { SlicedGenerator } from '../interfaces/SlicedGenerator';6/**7 * Build a {@link SlicedGenerator}8 *9 * @param arb - Arbitrary able to generate values10 * @param mrng - Random number generator11 * @param slices - Slices to be used (WARNING: while we accept no slices, slices themselves must never empty)12 * @param biasFactor - The current bias factor13 *14 * @internal15 */16export function buildSlicedGenerator<T>(17  arb: Arbitrary<T>,18  mrng: Random,19  slices: T[][],20  biasFactor: number | undefined21): SlicedGenerator<T> {22  // We by-pass any slice-based logic if one of:23  // - no bias24  // - no slices25  // - not our turn: we only apply the slices fallbacks on 1 run over biasFactor26  if (biasFactor === undefined || slices.length === 0 || mrng.nextInt(1, biasFactor) !== 1) {27    return new NoopSlicedGenerator(arb, mrng, biasFactor);28  }29  return new SlicedBasedGenerator(arb, mrng, slices, biasFactor);...

NoopSlicedGenerator.ts

Source:NoopSlicedGenerator.ts

1import { Arbitrary } from '../../../check/arbitrary/definition/Arbitrary';2import { Value } from '../../../check/arbitrary/definition/Value';3import { Random } from '../../../random/generator/Random';4import { SlicedGenerator } from '../interfaces/SlicedGenerator';5/** @internal */6export class NoopSlicedGenerator<T> implements SlicedGenerator<T> {7  constructor(8    private readonly arb: Arbitrary<T>,9    private readonly mrng: Random,10    private readonly biasFactor: number | undefined11  ) {}12  attemptExact(): void {13    return;14  }15  next(): Value<T> {16    return this.arb.generate(this.mrng, this.biasFactor);17  }...

Using AI Code Generation

1const slicedGenerator = require('fast-check-monorepo').slicedGenerator;2const fc = require('fast-check');3const gen = fc.array(fc.integer(0, 10), 1, 10);4const gen1 = slicedGenerator(gen, 1, 5);5const gen2 = slicedGenerator(gen, 5, 10);6fc.assert(fc.property(gen1, gen2, (arr1, arr2) => {7  console.log(arr1, arr2);8  return true;9}));10const fc = require('fast-check');11const validDateGenerator = fc.string().filter(str => {12  const date = new Date(str);13  return !isNaN(date.getTime());14});15fc.assert(fc.property(validDateGenerator, date => {16  console.log(date);17  return true;18}));19const fc = require('fast-check');20const validDateGenerator = fc.string().filter(str => {21  const date = new Date(str);22  return !isNaN(date.getTime());23});24const validDateGeneratorSliced = fc.slicedGenerator(validDateGenerator, 1, 10);25fc.assert(fc.property(validDateGeneratorSliced, date => {26  console.log(date);27  return true;28}));29import fc from 'fast-check';30test('should generate a random string', () => {31  fc.assert(32    fc.property(fc

Using AI Code Generation

1const {slicedGenerator} = require('fast-check');2const {generate} = slicedGenerator(3  function*() {4    yield 1;5    yield 2;6    yield 3;7    yield 4;8    yield 5;9    yield 6;10    yield 7;11    yield 8;12    yield 9;13    yield 10;14  },15);16const {value} = generate();17console.log(value);18const {slicedGenerator} = require('fast-check');19const {generate} = slicedGenerator(20  function*() {21    yield 1;22    yield 2;23    yield 3;24    yield 4;25    yield 5;26    yield 6;27    yield 7;28    yield 8;29    yield 9;30    yield 10;31  },32);33const {value} = generate();34console.log(value);35const {slicedGenerator} = require('fast-check');36const {generate} = slicedGenerator(37  function*() {38    yield 1;39    yield 2;40    yield 3;41    yield 4;42    yield 5;43    yield 6;44    yield 7;45    yield 8;46    yield 9;47    yield 10;48  },49);50const {value} = generate();51console.log(value);52const {slicedGenerator} = require('fast-check');53const {generate} = slicedGenerator(54  function*() {55    yield 1;56    yield 2;57    yield 3;58    yield 4;59    yield 5;60    yield 6;61    yield 7;62    yield 8;63    yield 9;64    yield 10;65  },66);67const {value} =

Using AI Code Generation

1const { slicedGenerator } = require('fast-check');2const { generator } = require('./generator.js');3const { property } = require('fast-check');4const gen = slicedGenerator(generator, 1, 2);5property(gen, (x) => {6  console.log('x is ', x);7  return true;8});9const { generator } = require('fast-check');10const generator = generator.map((g) => {11  const [a, b] = g;12  return [a, b];13});14module.exports = { generator };15@kyle-mccarthy I am not sure to understand what you are trying to do. What is the goal of calling slicedGenerator(generator, 1, 2) ? What is the goal of calling slicedGenerator(generator, 1, 2) ?16const { slicedGenerator } = require('fast-check');17const { generator } = require('./generator.js');18const { property } = require('fast-check');19const gen = slicedGenerator(generator, 1, 2);20property(gen, (x) => {21  console.log('x is ', x);22  return true;23});24const { generator } = require('fast-check');25const generator = generator.map((g) => {26  const [a, b] = g;

Using AI Code Generation

1const fc = require("fast-check");2const { slicedGenerator } = require("fast-check");3const { generate } = require("fast-check/lib/check/generator/GeneratorArbitrary");4const gen = fc.array(fc.integer(), { minLength: 1, maxLength: 10 });5const gen2 = slicedGenerator(gen, 0, 5);6const gen3 = slicedGenerator(gen, 5, 10);7const g = generate(gen2);8const g2 = generate(gen3);9const sample = g.sample();10const sample2 = g2.sample();11console.log("sample", sample);12console.log("sample2", sample2);13const fc = require("fast-check");14const { slicedGenerator } = require("fast-check");15const { generate } = require("fast-check/lib/check/generator/GeneratorArbitrary");16const gen = fc.array(fc.integer(), { minLength: 1, maxLength: 10 });17const gen2 = slicedGenerator(gen, 0, 5);18const gen3 = slicedGenerator(gen, 5, 10);19const g = generate(gen2);20const g2 = generate(gen3);21const sample = g.sample();22const sample2 = g2.sample();23console.log("sample", sample);24console.log("sample2", sample2);25const fc = require("fast-check");26const { slicedGenerator } = require("fast-check");27const { generate } = require("fast-check/lib/check/generator/GeneratorArbitrary");28const gen = fc.array(fc.integer(), { minLength: 1, maxLength: 10 });29const gen2 = slicedGenerator(gen, 0, 5);30const gen3 = slicedGenerator(gen, 5, 10);31const g = generate(gen2);32const g2 = generate(gen3);33const sample = g.sample();34const sample2 = g2.sample();35console.log("sample", sample);36console.log("sample

Using AI Code Generation

1const { slicedGenerator } = require('fast-check');2const { range } = require('lodash');3const { generate } = require('astring');4const { generate: escodegen } = require('escodegen');5const { parse } = require('acorn');6const { generate: esprima } = require('esprima');7const { generate: escodegen2 } = require('escodegen-wallaby');8const { generate: escodegen3 } = require('escodegen-wallaby-2');9const { generate: escodegen4 } = require('escodegen-wallaby-3');10const { generate: escodegen5 } = require('escodegen-wallaby-4');11const { generate: escodegen6 } = require('escodegen-wallaby-5');12const { generate: escodegen7 } = require('escodegen-wallaby-6');13const { generate: escodegen8 } = require('escodegen-wallaby-7');14const { generate: escodegen9 } = require('escodegen-wallaby-8');15const { generate: escodegen10 } = require('escodegen-wallaby-9');16const { generate: escodegen11 } = require('escodegen-wallaby-10');17const { generate: escodegen12 } = require('escodegen-wallaby-11');18const { generate: escodegen13 } = require('escodegen-wallaby-12');19const { generate: escodegen14 } = require('escodegen-wallaby-13');20const { generate: escodegen15 } = require('escodegen-wallaby-14');21const { generate: escodegen16 } = require('escodegen-wallaby-15');22const { generate: escodegen17 } = require('escodegen-wallaby-16');23const { generate: escodegen18 } = require('escodegen-wallaby-17');24const { generate: escodegen19 } = require('escodegen-wallaby-18');25const { generate: escodegen20 } = require('escodegen-wallaby-19');26const { generate: escodegen21 } = require('escodegen-wallaby-20');27const { generate: escodegen22 } = require('escodegen-wallaby-21');28const { generate: escodegen23 } = require('escodegen-wallaby-22');29const { generate: escodegen24 } = require('escodegen-wallaby-23');30const { generate: escodegen25 } = require('escodegen-wallaby-24');

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