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');

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.