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How to use alreadySeenConstants method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

mapToConstant.spec.ts

Source:mapToConstant.spec.ts

1import fc from 'fast-check';2import { mapToConstant } from '../../../src/arbitrary/mapToConstant';3import { Value } from '../../../src/check/arbitrary/definition/Value';4import {5  assertProduceValuesShrinkableWithoutContext,6  assertProduceCorrectValues,7  assertShrinkProducesSameValueWithoutInitialContext,8  assertProduceSameValueGivenSameSeed,9} from './__test-helpers__/ArbitraryAssertions';10import { buildShrinkTree, renderTree } from './__test-helpers__/ShrinkTree';11describe('mapToConstant', () => {12  it('should reject any inputs containing at least one strictly negative entry', () =>13    fc.assert(14      fc.property(fc.array(fc.nat()), fc.array(fc.nat()), fc.integer({ max: -1 }), (beforeNeg, afterNeg, neg) => {15        // Arrange16        const entries = [...beforeNeg, neg, ...afterNeg].map((num) => ({ num, build: jest.fn() }));17        // Act / Assert18        expect(() => mapToConstant(...entries)).toThrowError();19      })20    ));21  it('should reject any inputs summing to zero', () =>22    fc.assert(23      fc.property(fc.nat({ max: 1000 }), (length) => {24        // Arrange25        const entries = [...Array(length)].map(() => ({ num: 0, build: jest.fn() }));26        // Act / Assert27        expect(() => mapToConstant(...entries)).toThrowError();28      })29    ));30  it('should accept any inputs not summing to zero and with positive or null values', () =>31    fc.assert(32      fc.property(fc.array(fc.nat(), { minLength: 1 }), (nums) => {33        // Arrange34        fc.pre(nums.some((n) => n > 0));35        const entries = nums.map((num) => ({ num, build: jest.fn() }));36        // Act / Assert37        expect(() => mapToConstant(...entries)).not.toThrowError();38      })39    ));40});41describe('mapToConstant (integration)', () => {42  type Extra = unknown[][];43  const extraParameters: fc.Arbitrary<Extra> = fc.array(fc.uniqueArray(fc.anything(), { minLength: 1 }), {44    minLength: 1,45  });46  const isCorrect = (value: unknown, extra: Extra) => {47    for (const entryCandidate of extra) {48      if (entryCandidate.includes(value)) {49        // -0 and 0 are mixed by include50        return true;51      }52    }53    return false;54  };55  const mapToConstantBuilder = (extra: Extra) => {56    const alreadySeenConstants = new Set<unknown>();57    const entries: { num: number; build: (index: number) => unknown }[] = [];58    for (const entryCandidate of extra) {59      // Only keep values (aka constants) never seen before (-0 and 0) will be mixed due to Set60      const trimmedConstants = entryCandidate.filter((c) => !alreadySeenConstants.has(c));61      entries.push({ num: trimmedConstants.length, build: (index: number) => trimmedConstants[index] });62      trimmedConstants.forEach((c) => alreadySeenConstants.add(c));63    }64    return mapToConstant(...entries);65  };66  it('should produce the same values given the same seed', () => {67    assertProduceSameValueGivenSameSeed(mapToConstantBuilder, { extraParameters });68  });69  it('should only produce correct values', () => {70    assertProduceCorrectValues(mapToConstantBuilder, isCorrect, { extraParameters });71  });72  it('should produce values seen as shrinkable without any context', () => {73    assertProduceValuesShrinkableWithoutContext(mapToConstantBuilder, { extraParameters });74  });75  it('should be able to shrink to the same values without initial context', () => {76    assertShrinkProducesSameValueWithoutInitialContext(mapToConstantBuilder, { extraParameters });77  });78  it('should be able to shrink c given hexa-like entries', () => {79    // Arrange80    const arb = mapToConstant(81      { num: 10, build: (index) => String.fromCodePoint(index + 48) }, // 0-982      { num: 6, build: (index) => String.fromCodePoint(index + 97) } // a-f83    );84    const rawValue = 'c';85    const value = new Value(rawValue, undefined);86    // Act87    const renderedTree = renderTree(buildShrinkTree(arb, value)).join('\n');88    // Assert89    expect(arb.canShrinkWithoutContext(rawValue)).toBe(true);90    expect(renderedTree).toMatchSnapshot();91  });...

Using AI Code Generation

1const { alreadySeenConstants } = require('fast-check');2const { alreadySeenConstants } = require('fast-check');3const { alreadySeenConstants } = require('fast-check');4const { alreadySeenConstants } = require('fast-check');5const { alreadySeenConstants } = require('fast-check');6const { alreadySeenConstants } = require('fast-check');7const { alreadySeenConstants } = require('fast-check');8const { alreadySeenConstants } = require('fast-check');9const { alreadySeenConstants } = require('fast-check');10const { alreadySeenConstants } = require('fast-check');11const { alreadySeenConstants } = require('fast-check');12const { alreadySeenConstants } = require('fast-check');13const { alreadySeenConstants } = require('fast-check');14const { alreadySeenConstants } = require('fast-check');15const { alreadySeenConstants } = require('fast-check');16const { alreadySeenConstants } = require('fast-check');17const { alreadySeenConstants } = require('fast-check');18const { alreadySeenConstants } = require('fast-check');19const { alreadySeenConstants } = require('fast-check');

Using AI Code Generation

1const { alreadySeenConstants } = require('fast-check/lib/check/runner/RunnerState');2const { alreadySeenConstants } = require('fast-check/lib/check/runner/RunnerState');3const { alreadySeenConstants } = require('fast-check/lib/check/runner/RunnerState');4const { alreadySeenConstants } = require('fast-check/lib/check/runner/RunnerState');5const { alreadySeenConstants } = require('fast-check/lib/check/runner/RunnerState');6const { alreadySeenConstants } = require('fast-check/lib/check/runner/RunnerState');7const { alreadySeenConstants } = require('fast-check/lib/check/runner/RunnerState');8const { alreadySeenConstants } = require('fast-check/lib/check/runner/RunnerState');9const { alreadySeenConstants } = require('fast-check/lib/check/runner/RunnerState');10const { alreadySeenConstants } = require('fast-check/lib/check/runner/RunnerState');11const { alreadySeenConstants } = require('fast-check/lib/check/runner/RunnerState');12const { alreadySeen

Using AI Code Generation

1const { alreadySeenConstants } = require('fast-check');2const { constantFrom } = require('fast-check/lib/arbitrary/ConstantArbitrary');3const arb = constantFrom(1,2,3,4,5,6,7,8,9,10);4const seen = alreadySeenConstants(arb, 10);5const arb2 = constantFrom(1,2,3,4,5,6,7,8,9,10);6const seen2 = alreadySeenConstants(arb2, 11);7const { alreadySeenConstants } = require('fast-check');8const { constantFrom } = require('fast-check/lib/arbitrary/ConstantArbitrary');9const arb = constantFrom(1,2,3,4,5,6,7,8,9,10);10const seen = alreadySeenConstants(arb, 10);11const arb2 = constantFrom(1,2,3,4,5,6,7,8,9,10);12const seen2 = alreadySeenConstants(arb2, 11);13const arb = constantFrom(1,2,3,4,5,6,7,8,9,10);14const seen = alreadySeenConstants(arb, 10, { seed: 42 });15const seen2 = alreadySeenConstants(arb, 11, { seed: 42 });

Using AI Code Generation

1const { check, alreadySeenConstants } = require('fast-check');2const { expect } = require('chai');3const constants = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];4describe('alreadySeenConstants', () => {5  it('should return true if value is seen', () => {6    const seenValues = [1, 2, 3];7    expect(alreadySeenConstants(seenValues, constants)).to.equal(true);8  });9  it('should return false if value is not seen', () => {10    const seenValues = [4, 5, 6];11    expect(alreadySeenConstants(seenValues, constants)).to.equal(false);12  });13});14const { check, alreadySeenConstants } = require('fast-check');15const { expect } = require('chai');16const constants = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];17describe('alreadySeenConstants', () => {18  it('should return true if value is seen', () => {19    const seenValues = [1, 2, 3];20    expect(alreadySeenConstants(seenValues, constants)).to.equal(true);21  });22  it('should return false if value is not seen', () => {23    const seenValues = [4, 5, 6];24    expect(alreadySeenConstants(seenValues, constants)).to.equal(false);25  });26});27const { check, alreadySeenConstants } = require('fast-check');28const { expect } = require('chai');29const constants = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];30describe('alreadySeenConstants', () => {31  it('should return true if value is seen', () => {32    const seenValues = [1, 2, 3];33    expect(alreadySeenConstants(seenValues, constants)).to.equal(true);34  });35  it('should return false if value is not seen', () => {36    const seenValues = [4, 5, 6];37    expect(alreadySeenConstants(seenValues, constants)).to.equal(false);38  });39});40const { check

Using AI Code Generation

1import { alreadySeenConstants } from 'fast-check';2const { MAX_ARRAY_LENGTH, MAX_DEPTH, MAX_ITERATIONS } = alreadySeenConstants;3console.log(MAX_ARRAY_LENGTH, MAX_DEPTH, MAX_ITERATIONS);4import { alreadySeenConstants } from 'fast-check-monorepo';5const { MAX_ARRAY_LENGTH, MAX_DEPTH, MAX_ITERATIONS } = alreadySeenConstants;6console.log(MAX_ARRAY_LENGTH, MAX_DEPTH, MAX_ITERATIONS);7Note: I have also tried to import the method from the following path: fast-check-monorepo/lib/src/check/arbitrary/AlreadySeenConstraints.ts8import { alreadySeenConstants } from 'fast-check';9const { MAX_ARRAY_LENGTH, MAX_DEPTH, MAX_ITERATIONS } = alreadySeenConstants;10console.log(MAX_ARRAY_LENGTH, MAX_DEPTH, MAX_ITERATIONS);11import { alreadySeenConstants } from 'fast-check-monorepo';12const { MAX_ARRAY_LENGTH, MAX_DEPTH, MAX_ITERATIONS } = alreadySeenConstants;13console.log(MAX_ARRAY_LENGTH, MAX_DEPTH, MAX_ITERATIONS);14Note: I have also tried to import the method from the following path: fast-check-monorepo/lib/src/check/arbitrary/AlreadySeenConstraints.ts but it gives the following error:

Using AI Code Generation

1const { alreadySeenConstants } = require('fast-check');2const run = (a, b) => {3  const seen = new Set();4  for (let i = 0; i < 1000; i++) {5    const c = alreadySeenConstants(a, b, seen);6    console.log(c);7  }8};9run(1, 1);10run(1, 2);11run(2, 1);12run(2, 2);13run(3, 1);14run(3, 2);15run(3, 3);16run(4, 1);17run(4, 2);18run(4, 3);19run(4, 4);20run(5, 1);21run(5, 2);22run(5, 3);23run(5, 4);24run(5, 5);25run(6, 1);26run(6, 2);27run(6, 3);28run(6, 4);29run(6, 5);30run(6, 6);31run(7, 1);32run(7, 2);33run(7, 3);34run(7, 4);35run(7, 5);36run(7, 6);37run(7, 7);38run(8, 1);39run(8, 2);40run(8, 3);41run(8, 4);42run(8, 5);43run(8, 6);44run(8, 7);45run(8, 8);46run(9, 1);47run(9, 2);48run(9, 3);49run(9, 4);50run(9, 5);51run(9, 6);52run(9, 7);53run(9, 8);54run(9, 9);55run(10, 1);56run(10, 2);57run(10, 3);58run(10, 4);59run(10, 5);60run(10, 6);61run(10, 7);62run(10, 8);63run(10, 9);64run(10, 10);65run(11, 1);66run(11, 2);67run(11, 3);68run(11, 4);

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