How to use simulateSkips method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

SourceValuesIterator.spec.ts

Source:SourceValuesIterator.spec.ts

...19  return iotaN(n)20    .map((v) => () => v)21    [Symbol.iterator]();22}23function simulateSkips(svIt: SourceValuesIterator<number>, skippedValues: number[]) {24  const svValues = [];25  for (const v of svIt) {26    if (skippedValues.includes(v)) svIt.skippedOne();27    else svValues.push(v);28  }29  return svValues;30}31describe('SourceValuesIterator', () => {32  it('Should only call the produce method when iterating on the value', () =>33    fc.assert(34      fc.property(fc.nat(100), (askedValues) => {35        const generatedValues: number[] = [];36        const initialValues = iota()37          .map((v) => () => {38            generatedValues.push(v);39            return v;40          })41          [Symbol.iterator]();42        const svIt = new SourceValuesIterator(initialValues, askedValues, 0);43        const svValues = [...svIt];44        expect(generatedValues).toHaveLength(askedValues);45        expect(generatedValues).toEqual(svValues);46      })47    ));48  describe('Not enough skipped values', () => {49    it('Should return the first eligible askedValues values if infinite source', () =>50      fc.assert(51        fc.property(fc.nat(100), fc.uniqueArray(fc.nat(100)), (askedValues, skippedValues) => {52          const svIt = new SourceValuesIterator(source(), askedValues, skippedValues.length);53          const svValues = simulateSkips(svIt, skippedValues);54          const expectedValues = [55            ...iota()56              .filter((v) => !skippedValues.includes(v))57              .take(askedValues),58          ];59          expect(svValues).toHaveLength(askedValues);60          expect(svValues).toEqual(expectedValues);61        })62      ));63    it('Should return the first eligible askedValues values if larger source', () =>64      fc.assert(65        fc.property(66          fc.nat(100),67          fc.nat(100),68          fc.uniqueArray(fc.nat(100)),69          (askedValues, additionalValuesInSource, skippedValues) => {70            const initialValues = sourceN(askedValues + additionalValuesInSource + skippedValues.length);71            const svIt = new SourceValuesIterator(initialValues, askedValues, skippedValues.length);72            const svValues = simulateSkips(svIt, skippedValues);73            const expectedValues = [74              ...iota()75                .filter((v) => !skippedValues.includes(v))76                .take(askedValues),77            ];78            expect(svValues).toHaveLength(askedValues);79            expect(svValues).toEqual(expectedValues);80          }81        )82      ));83    it('Should return the first eligible values among sourceValues values if smaller source', () =>84      fc.assert(85        fc.property(86          fc.nat(100),87          fc.nat(100),88          fc.uniqueArray(fc.nat(100)),89          (sourceValues, additionalAskedValues, skippedValues) => {90            const askedValues = sourceValues + additionalAskedValues;91            const svIt = new SourceValuesIterator(sourceN(sourceValues), askedValues, skippedValues.length);92            const svValues = simulateSkips(svIt, skippedValues);93            const numSkippedValues = skippedValues.filter((v) => v < sourceValues).length;94            const expectedValues = [95              ...iota()96                .take(sourceValues)97                .filter((v) => !skippedValues.includes(v)),98            ];99            expect(svValues).toHaveLength(sourceValues - numSkippedValues);100            expect(svValues).toEqual(expectedValues);101          }102        )103      ));104  });105  describe('Too many skipped values', () => {106    it('Should stop as soon as it passes maxSkips skipped values', () =>107      fc.assert(108        fc.property(109          fc.uniqueArray(fc.nat(100), { minLength: 1, maxLength: 20 }),110          fc.integer({ min: 1, max: 100 }),111          (skippedValues, missingValues) => {112            const lastSkip = skippedValues.reduce((prev, cur) => (prev > cur ? prev : cur), 0);113            const askedValues = lastSkip + 1 - skippedValues.length + missingValues;114            const svIt = new SourceValuesIterator(source(), askedValues, skippedValues.length - 1);115            const svValues = simulateSkips(svIt, skippedValues);116            const expectedValues = [...iotaN(lastSkip).filter((v) => !skippedValues.includes(v))];117            expect(svValues).toEqual(expectedValues);118          }119        )120      ));121  });...

Using AI Code Generation

1const fc = require('./lib');2const { simulateSkips } = require('./lib/check/arbitrary/SkipArbitrary');3const { skip } = require('./lib/check/arbitrary/SkipValue');4const arb = fc.integer(0, 100).noShrink().filter((x) => {5  console.log('filter: ' + x);6  return x % 2 === 0;7});8const arb2 = simulateSkips(arb, [skip(1), skip(2), skip(3)]);9fc.assert(fc.property(arb2, (x) => x % 2 === 0));

Using AI Code Generation

1const fc = require('fast-check');2const simulateSkips = require('fast-check-monorepo').simulateSkips;3const fcArb = fc.integer();4const fcResult = fc.check(fc.property(fcArb, fcArb, (a, b) => a + b === b + a));5console.log(fcResult);6const fcMonorepoResult = simulateSkips(fcArb, fcArb, (a, b) => a + b === b + a);7console.log(fcMonorepoResult);8const fc = require('fast-check');9const simulateSkips = require('fast-check-monorepo').simulateSkips;10const fcArb = fc.integer();11const fcResult = fc.check(fc.property(fcArb, fcArb, (a, b) => a + b === b + a));12console.log(fcResult);13const fcMonorepoResult = simulateSkips(fcArb, fcArb, (a, b) => a + b === b + a);14console.log(fcMonorepoResult);15const fc = require('fast-check');16const simulateSkips = require('fast-check-monorepo').simulateSkips;17const fcArb = fc.integer();18const fcResult = fc.check(fc.property(fcArb, fcArb, (a, b) => a + b === b + a));19console.log(fcResult);20const fcMonorepoResult = simulateSkips(fcArb, fcArb, (a, b) => a + b === b + a);21console.log(fcMonorepoResult);

Using AI Code Generation

1const { simulateSkips } = require('fast-check');2const fc = require('fast-check');3const { add } = require('./add');4const test = () => {5  fc.assert(6    fc.property(fc.integer(), fc.integer(), (a, b) => {7      const result = add(a, b);8      const expected = a + b;9      return result === expected;10    })11  );12};13const result = simulateSkips(test);14console.log(result);15const add = (a, b) => a + b;16module.exports = { add };17{18  "scripts": {19  },20  "dependencies": {21  }22}23    at Object.simulateSkips (/Users/username/Projects/test/node_modules/fast-check/lib/check/arbitrary/SkipArbitrary.js:14:39)24    at Object.<anonymous> (/Users/username/Projects/test/test.js:18:20)25    at Module._compile (internal/modules/cjs/loader.js:778:30)26    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)27    at Module.load (internal/modules/cjs/loader.js:653:32)28    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)29    at Function.Module._load (internal/modules/cjs/loader.js:585:3)30    at Function.Module.runMain (internal/modules/cjs/loader.js:829:12)31    at startup (internal/bootstrap/node.js:283:19)32    at bootstrapNodeJSCore (internal/bootstrap/node.js:623:3)

Using AI Code Generation

1import { Runner } from 'fast-check';2import { test } from 'mocha';3test('test', () => {4  const r = new Runner();5  r.simulateSkips(5, 2);6});7import { Runner } from 'fast-check';8import { test } from 'mocha';9test('test', () => {10  const r = new Runner();11  r.simulateSkips(5, 2);12});13{ "devDependencies": { "fast-check": "next" } }

Using AI Code Generation

1const fc = require('fast-check');2const { simulateSkips } = require('fast-check-monorepo');3const { expect } = require('chai');4describe('Test Suite', () => {5  it('test case', () => {6    const arb = fc.integer();7    const skip = 100;8    const { values } = simulateSkips(arb, skip);9    expect(values).to.have.lengthOf(skip);10  });11});

Using AI Code Generation

1const fc = require('fast-check');2const skip = (input) => {3  return input % 2 === 0;4};5const skipGen = fc.integer(0, 100).filter(skip);6const gen = fc.integer(0, 100);7const test = fc.property(fc.simulateSkips(skipGen, gen), (input) => {8  return input % 2 === 0;9});10fc.assert(test, { verbose: true });11const skipGen = fc.integer(0, 100).filter(skip);12const gen = fc.integer(0, 100);13const test = fc.property(fc.simulateSkips(skipGen, gen), (input) => {14  return input % 2 === 0;15});16fc.assert(test, { verbose: true });17const skipGen = fc.integer(0, 100).filter(skip);18const gen = fc.integer(0, 100);19const test = fc.property(fc.simulateSkips(skipGen, gen), (input) => {20  return input % 2 === 0;21});22fc.assert(test, { verbose: true });

Using AI Code Generation

1const fastCheck = require('fast-check');2const fc = fastCheck.default;3const { simulateSkips } = require('fast-check-monorepo');4const skip = (n) => {5    return fc.property(fc.integer(), fc.integer(), (a, b) => {6        if (n === 0) {7            return a + b === b + a;8        }9        return true;10    });11};12const run = async () => {13    const result = await simulateSkips(skip, 100, 1, 10, 10);14    console.log(result);15};16run();17const fastCheck = require('fast-check');18const fc = fastCheck.default;19const { simulateSkips } = require('fast-check-monorepo');20const skip = (n) => {21    return fc.property(fc.integer(), fc.integer(), (a, b) => {22        if (n === 0) {23            return a + b === b + a;24        }25        return true;26    });27};28const run = async () => {29    const result = await simulateSkips(skip, 100, 1, 10, 10);30    console.log(result);31};32fc.assert(33    fc.property(fc.integer(), fc.integer(), (n, m) => {34        const result = simulateSkips(skip, n, m, 10, 10);35        return result.skips === 10;36    })37);

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