How to use alreadySeenConstants method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

mapToConstant.spec.ts

Source:mapToConstant.spec.ts Github

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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 });...

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Using AI Code Generation

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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');

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Using AI Code Generation

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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

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Using AI Code Generation

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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 });

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Using AI Code Generation

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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

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Using AI Code Generation

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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:

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Using AI Code Generation

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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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