How to use firstElision method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

ipV6.spec.ts

Source:ipV6.spec.ts Github

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1import { ipV6 } from '../../../src/arbitrary/ipV6';2import { Value } from '../../../src/check/arbitrary/definition/Value';3import {4 assertProduceValuesShrinkableWithoutContext,5 assertShrinkProducesSameValueWithoutInitialContext,6 assertProduceCorrectValues,7 assertProduceSameValueGivenSameSeed,8 assertGenerateIndependentOfSize,9} from './__test-helpers__/ArbitraryAssertions';10import { buildShrinkTree, renderTree } from './__test-helpers__/ShrinkTree';11describe('ipV6 (integration)', () => {12 const isValidIpV4 = (value: string) => {13 const chunks = value.split('.').map((v) => {14 if (v[0] === '0') {15 if (v[1] === 'x' || v[1] === 'X') return parseInt(v, 16);16 return parseInt(v, 8);17 }18 return parseInt(v, 10);19 });20 // one invalid chunk21 if (chunks.find((v) => Number.isNaN(v)) !== undefined) return false;22 // maximal amount of 4 chunks23 if (chunks.length > 4) return false;24 // all chunks, except the last one are inferior or equal to 25525 if (chunks.slice(0, -1).find((v) => v < 0 && v > 255) !== undefined) return false;26 // last chunk must be below 256^(5 − number of chunks)27 return chunks[chunks.length - 1] < 256 ** (5 - chunks.length);28 };29 const isCorrect = (value: string) => {30 const firstElision = value.indexOf('::');31 if (firstElision !== -1) {32 // At most one '::'33 if (value.substr(firstElision + 1).includes('::')) return false;34 }35 const chunks = value.split(':');36 const last = chunks[chunks.length - 1];37 // The ipv4 can only be composed of 4 decimal chunks separated by dots38 // 1.1000 is not a valid IP v4 in the context of IP v639 const endByIpV4 = last.includes('.') && isValidIpV4(last);40 const nonEmptyChunks = chunks.filter((c) => c !== '');41 const hexaChunks = endByIpV4 ? nonEmptyChunks.slice(0, nonEmptyChunks.length - 1) : nonEmptyChunks;42 if (!hexaChunks.every((s) => /^[0-9a-f]{1,4}$/.test(s))) return false;43 const equivalentChunkLength = endByIpV4 ? hexaChunks.length + 2 : hexaChunks.length;44 return firstElision !== -1 ? equivalentChunkLength < 8 : equivalentChunkLength === 8;45 };46 const ipV6Builder = () => ipV6();47 it('should produce the same values given the same seed', () => {48 assertProduceSameValueGivenSameSeed(ipV6Builder);49 });50 it('should only produce correct values', () => {51 assertProduceCorrectValues(ipV6Builder, isCorrect);52 });53 it('should produce values seen as shrinkable without any context', () => {54 assertProduceValuesShrinkableWithoutContext(ipV6Builder);55 });56 it('should be able to shrink to the same values without initial context', () => {57 assertShrinkProducesSameValueWithoutInitialContext(ipV6Builder);58 });59 it('should be independent of global settings overriding defaults on size', () => {60 assertGenerateIndependentOfSize(ipV6Builder);61 });62 it.each`63 source64 ${'::1'}65 ${'0123:5678:9abc:ef01:2345:6789:128.0.0.1'}66 ${'0123:5678:9abc:ef01:2345:6789:0000:ffff'}67 ${'0:56:9abc:ef01:234:67:8.8.8.8'}68 ${'0:56:9abc:ef01:234:67:0:f'}69 ${'::5678:9abc:ef01:2345:6789:128.0.0.1'}70 ${'::5678:9abc:ef01:2345:6789:0000:ffff'}71 ${'::9abc:ef01:2345:6789:128.0.0.1'}72 ${'::9abc:ef01:2345:6789:0000:ffff'}73 ${'5678::9abc:ef01:2345:6789:128.0.0.1'}74 ${'5678::9abc:ef01:2345:6789:0000:ffff'}75 ${'::ef01:2345:6789:128.0.0.1'}76 ${'::ef01:2345:6789:0000:ffff'}77 ${'9abc::ef01:2345:6789:128.0.0.1'}78 ${'9abc::ef01:2345:6789:0000:ffff'}79 ${'5678:9abc::ef01:2345:6789:128.0.0.1'}80 ${'5678:9abc::ef01:2345:6789:0000:ffff'}81 ${'::2345:6789:128.0.0.1'}82 ${'::2345:6789:0000:ffff'}83 ${'ef01::2345:6789:128.0.0.1'}84 ${'ef01::2345:6789:0000:ffff'}85 ${'9abc:ef01::2345:6789:128.0.0.1'}86 ${'9abc:ef01::2345:6789:0000:ffff'}87 ${'5678:9abc:ef01::2345:6789:128.0.0.1'}88 ${'5678:9abc:ef01::2345:6789:0000:ffff'}89 ${'::6789:128.0.0.1'}90 ${'::6789:0000:ffff'}91 ${'2345::6789:128.0.0.1'}92 ${'2345::6789:0000:ffff'}93 ${'ef01:2345::6789:128.0.0.1'}94 ${'ef01:2345::6789:0000:ffff'}95 ${'9abc:ef01:2345::6789:128.0.0.1'}96 ${'9abc:ef01:2345::6789:0000:ffff'}97 ${'5678:9abc:ef01:2345::6789:128.0.0.1'}98 ${'5678:9abc:ef01:2345::6789:0000:ffff'}99 ${'::128.0.0.1'}100 ${'::0000:ffff'}101 ${'2345::128.0.0.1'}102 ${'2345::0000:ffff'}103 ${'ef01:2345::128.0.0.1'}104 ${'ef01:2345::0000:ffff'}105 ${'9abc:ef01:2345::128.0.0.1'}106 ${'9abc:ef01:2345::0000:ffff'}107 ${'5678:9abc:ef01:2345::128.0.0.1'}108 ${'5678:9abc:ef01:2345::0000:ffff'}109 ${'0123:5678:9abc:ef01:2345::128.0.0.1'}110 ${'0123:5678:9abc:ef01:2345::0000:ffff'}111 ${'::0123'}112 ${'6789::0123'}113 ${'2345:6789::0123'}114 ${'ef01:2345:6789::0123'}115 ${'9abc:ef01:2345:6789::0123'}116 ${'5678:9abc:ef01:2345:6789::0123'}117 ${'0123:5678:9abc:ef01:2345:6789::0123'}118 ${'::'}119 ${'0123::'}120 ${'6789:0123::'}121 ${'2345:6789:0123::'}122 ${'ef01:2345:6789:0123::'}123 ${'9abc:ef01:2345:6789:0123::'}124 ${'5678:9abc:ef01:2345:6789:0123::'}125 ${'0123:5678:9abc:ef01:2345:6789:0123::'}126 `('should be able to generate $source with fc.ipV6()', ({ source }) => {127 // Arrange / Act128 const arb = ipV6();129 const out = arb.canShrinkWithoutContext(source);130 // Assert131 expect(out).toBe(true);132 });133 it.each`134 rawValue135 ${'::1'}136 ${'0123:5678:9abc:ef01:2345:6789:128.0.0.1'}137 `('should be able to shrink $rawValue', ({ rawValue }) => {138 // Arrange139 const arb = ipV6();140 const value = new Value(rawValue, undefined);141 // Act142 const renderedTree = renderTree(buildShrinkTree(arb, value, { numItems: 100 })).join('\n');143 // Assert144 expect(arb.canShrinkWithoutContext(rawValue)).toBe(true);145 expect(renderedTree).toMatchSnapshot();146 });...

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Using AI Code Generation

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1const fc = require('fast-check');2const { firstElision } = require('fast-check-monorepo');3fc.assert(4 fc.property(5 fc.array(fc.integer(), { minLength: 1, maxLength: 10 }),6 fc.nat(10),7 (a, idx) => {8 const actual = firstElision(a, idx);9 const expected = a.slice(idx);10 return actual === expected;11 }12);13const fc = require('fast-check');14const { firstElision } = require('fast-check-monorepo');15fc.assert(16 fc.property(17 fc.array(fc.integer(), { minLength: 1, maxLength: 10 }),18 fc.nat(10),19 (a, idx) => {20 const actual = firstElision(a, idx);21 const expected = a.slice(idx);22 return actual === expected;23 }24);25const fc = require('fast-check');26const { firstElision } = require('fast-check-monorepo');27fc.assert(28 fc.property(29 fc.array(fc.integer(), { minLength: 1, maxLength: 10 }),30 fc.nat(10),31 (a, idx) => {32 const actual = firstElision(a, idx);33 const expected = a.slice(idx);34 return actual === expected;35 }36);37const fc = require('fast-check');38const { firstElision } = require('fast-check-monorepo');39fc.assert(40 fc.property(41 fc.array(fc.integer(), { minLength: 1, maxLength: 10 }),42 fc.nat(10),43 (a, idx) => {44 const actual = firstElision(a, idx);45 const expected = a.slice(idx);

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Using AI Code Generation

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1const fc = require('fast-check');2const {firstElision} = require('fast-check-monorepo');3fc.assert(4 fc.property(fc.array(fc.nat()), (arr) => {5 const elision = firstElision(arr);6 const elisionIndex = arr.indexOf(elision);7 return elisionIndex === -1 || arr.slice(elisionIndex + 1).indexOf(elision) === -1;8 })9);10{11 "scripts": {12 },13 "dependencies": {14 },15 "devDependencies": {16 }17}18module.exports = {19};20{21 ["@babel/preset-env", { "targets": { "node": "current" } }]22}23{24 "env": {25 }26}

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Using AI Code Generation

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1const {firstElision} = require('fast-check/lib/check/arbitrary/FirstElisionArbitrary');2const fc = require('fast-check');3const {expect} = require('chai');4describe('firstElision', function() {5 it('should return the first elision of an array', function() {6 fc.assert(7 fc.property(fc.array(fc.integer()), fc.integer(), (arr, val) => {8 const arrWithVal = [val, ...arr];9 const firstElisionOfArrWithVal = firstElision(arrWithVal);10 expect(firstElisionOfArrWithVal).to.be.an('array');11 expect(firstElisionOfArrWithVal).to.include(val);12 expect(firstElisionOfArrWithVal).to.have.lengthOf(arr.length);13 })14 );15 });16});17require('fast-check/lib/check/arbitrary/FirstElisionArbitrary');18require('fast-check/dist/lib/check/arbitrary/FirstElisionArbitrary');19require('fast-check/dist/lib/check/arbitrary/FirstElisionArbitrary.js');20require('fast-check/dist/lib/check/arbitrary/FirstElisionArbitrary.js');21require('fast-check/dist/lib/check/arbitrary/FirstElisionArbitrary');22require('fast-check/dist/lib/check/arbitrary/FirstElisionArbitrary.js');23require('fast-check/dist/lib/check/arbitrary/FirstElisionArbitrary');24require('fast-check/dist/lib/check/arbitrary/FirstElisionArbitrary.js');25require('fast-check/dist/lib/check/arbitrary/FirstElisionArbitrary');26require('fast-check/dist/lib/check/arbitrary/FirstElisionArbitrary.js');27require('fast-check/dist/lib/check/arbitrary/FirstElisionArbitrary');28require('fast-check/dist/lib/check/arbitrary/FirstElisionArbitrary.js');29require('fast-check/dist/lib/check/arbitrary/FirstElisionArbitrary');30require('fast-check/dist/lib/check/arbitrary/FirstElisionArbitrary.js');31require('fast-check/dist/lib/check/arbitrary/FirstElisionArbitrary');32require('fast-check/dist/lib/check/arbitrary/FirstElisionArbitrary.js');33require('fast-check/dist

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Using AI Code Generation

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1const { firstElision } = require('fast-check-monorepo')2const { firstElision } = require('fast-check-monorepo')3const { firstElision } = require('fast-check-monorepo')4const { firstElision } = require('fast-check-monorepo')5const { firstElision } = require('fast-check-monorepo')6const { firstElision } = require('fast-check-monorepo')7const { firstElision } = require('fast-check-monorepo')8const { firstElision } = require('fast-check-monorepo')9const { firstElision } = require('fast-check-monorepo')10const { firstElision } = require('fast-check-monorepo')

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Using AI Code Generation

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1const fc = require('fast-check');2const firstElision = (str) => {3 const elision = str.indexOf(' ');4 return elision === -1 ? '' : str.substring(0, elision);5};6fc.assert(7 fc.property(fc.string(), (str) => {8 return firstElision(str) === str.split(' ')[0];9 })10);11{12 "scripts": {13 },14 "dependencies": {15 }16}17If you want to test a function that is located in a different package, you can use require to import the function from the package. For example, if you have a package called fast-check-monorepo with a function called firstElision in its index.js file, you can use the following code to test the function:18const fc = require('fast-check');19const firstElision = require('fast-check-monorepo').firstElision;20fc.assert(21 fc.property(fc.string(), (str) => {22 return firstElision(str) === str.split(' ')[0];23 })24);25{26 "scripts": {27 },28 "dependencies": {29 }30}31const fc = require('fast-check

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Using AI Code Generation

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1const fc = require("fast-check");2const firstElision = require("fast-check-monorepo");3const input = "hello world";4const output = firstElision(input);5console.log(output);6const fc = require("fast-check");7const firstElision = require("fast-check-monorepo");8const input = "hello world";9const output = firstElision(input);10console.log(output);11const fc = require("fast-check");12const firstElision = require("fast-check-monorepo");13const input = "hello world";14const output = firstElision(input);15console.log(output);16const fc = require("fast-check");17const firstElision = require("fast-check-monorepo");18const input = "hello world";19const output = firstElision(input);20console.log(output);21const fc = require("fast-check");22const firstElision = require("fast-check-monorepo");23const input = "hello world";24const output = firstElision(input);25console.log(output);26const fc = require("fast-check");27const firstElision = require("fast-check-monorepo");28const input = "hello world";29const output = firstElision(input);30console.log(output);31const fc = require("fast-check");32const firstElision = require("fast-check-monorepo");33const input = "hello world";34const output = firstElision(input);35console.log(output);36const fc = require("fast-check");37const firstElision = require("fast-check-monorepo");38const input = "hello world";39const output = firstElision(input);40console.log(output);41const fc = require("fast-check");

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Using AI Code Generation

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1import { firstElision } from 'fast-check';2console.log(firstElision('abcdefg', 3));3console.log(firstElision('abcdefg', 2));4console.log(firstElision('abcdefg', 1));5console.log(firstElision('abcdefg', 0));6console.log(firstElision('abcdefg', -1));7console.log(firstElision('abcdefg', -2));

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