Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use posRomanNumberArb method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

main.spec.ts

Source:main.spec.ts

1import { toRoman, fromRoman, MaxRoman, LettersValue, NumLetters } from './src/roman';2import fc from 'fast-check';3describe('toRoman', () => {4  it('should be able to revert toRoman using fromRoman', () => {5    fc.assert(6      fc.property(romanNumberArb, (n) => {7        expect(fromRoman(toRoman(n))).toBe(n);8      })9    );10  });11  it('should produce a non empty string', () => {12    fc.assert(13      fc.property(romanNumberArb, (n) => {14        expect(toRoman(n)).not.toBe('');15      })16    );17  });18  it('should be injective', () => {19    fc.assert(20      fc.property(romanNumberArb, romanNumberArb, (n1, n2) => {21        fc.pre(n1 !== n2);22        expect(toRoman(n2)).not.toBe(toRoman(n1));23      })24    );25  });26  it('should start negative romans with a minus sign', () => {27    fc.assert(28      fc.property(fc.integer({ min: -MaxRoman, max: -1 }), (n) => {29        expect(toRoman(n)[0]).toBe('-');30      })31    );32  });33  it('should return same value for positive and negative romans excluding minus sign', () => {34    fc.assert(35      fc.property(posRomanNumberArb, (n) => {36        expect(toRoman(-n)).toBe(`-${toRoman(n)}`);37      })38    );39  });40  it('should produce only one of the allowed letters', () => {41    const letters: string[] = LettersValue.map(([_, v]) => v);42    fc.assert(43      fc.property(posRomanNumberArb, (n) => {44        expect([...toRoman(n)].every((c) => letters.includes(c))).toBe(true);45      })46    );47  });48  it('should not output too many times the same letter', () => {49    const letters: string[] = LettersValue.map(([_, v]) => v);50    fc.assert(51      fc.property(posRomanNumberArb, (n) => {52        const repr = toRoman(n);53        for (let idx = 0; idx !== letters.length; ++idx) {54          expect([...repr].filter((c) => c === letters[idx]).length).toBeLessThanOrEqual(55            idx % 256              ? 1 // 5 * 10^N appear at most 1 time57              : 4 // 10^N appear at most 4 times58          );59        }60      })61    );62  });63  it('should not produce a too long roman output', () => {64    const MaxRomanReprLength = (NumLetters - 1) / 2 + (3 * (NumLetters + 1)) / 2 + 1;65    fc.assert(66      fc.property(romanNumberArb, (n) => {67        expect(toRoman(n).length).toBeLessThanOrEqual(MaxRomanReprLength);68      })69    );70  });71});72describe('fromRoman', () => {73  it('should read simple roman strings (no letter doing a minus)', () => {74    fc.assert(75      fc.property(fc.array(fc.nat(3), { minLength: NumLetters, maxLength: NumLetters }), (choices) => {76        fc.pre(choices.find((e) => e !== 0) !== undefined);77        let romanRepr = '';78        let expected = 0;79        for (let ridx = 0; ridx !== choices.length; ++ridx) {80          const idx = NumLetters - ridx - 1;81          const num = idx % 2 && choices[idx] > 1 ? 1 : choices[idx];82          romanRepr += LettersValue[idx][1].repeat(num);83          expected += num * LettersValue[idx][0];84        }85        expect(fromRoman(romanRepr)).toBe(expected);86      })87    );88  });89});90// Helpers91const romanNumberArb = fc.integer({ min: -MaxRoman, max: MaxRoman });...

Using AI Code Generation

1const {posRomanNumberArb} = require('fast-check-monorepo');2const fc = require('fast-check');3fc.assert(4  fc.property(posRomanNumberArb(), (n) => {5    return n >= 1 && n <= 3999;6  })7);

Using AI Code Generation

1const {posRomanNumberArb} = require('fast-check-monorepo');2describe('posRomanNumberArb', () => {3  it('should generate a positive roman number', () => {4    expect(posRomanNumberArb().generate()).toEqual('I');5  });6});

Using AI Code Generation

1var posRomanNumberArb = require('fast-check-monorepo').posRomanNumberArb;2const fc = require('fast-check');3const posRomanNumberArb = require('fast-check-monorepo').posRomanNumberArb;4const fc = require('fast-check');5const { posRomanNumberArb } = require('fast-check-monorepo');6const fc = require('fast-check');7const { posRomanNumberArb } = require('fast-check-monorepo');8const fc = require('fast-check');9const { posRomanNumberArb } = require('fast-check-monorepo');10const fc = require('fast-check');11const { posRomanNumberArb } = require('fast-check-monorepo');12const fc = require('fast-check');13const { posRomanNumberArb } = require('fast-check-monorepo');14const fc = require('fast-check');15const { posRomanNumberArb } = require('fast-check-monorepo');16const fc = require('fast-check');17const { posRomanNumberArb } = require('fast-check-monorepo');18const fc = require('fast-check');19const { posRomanNumberArb } = require('fast-check-monorepo');20const fc = require('fast-check');21const { posRomanNumberArb } = require('fast-check-monorepo');22const fc = require('fast-check');23const { posRomanNumberArb } = require('fast-check

Using AI Code Generation

1const {posRomanNumberArb} = require('fast-check-monorepo');2describe('posRomanNumberArb', () => {3  it('should generate a positive roman number', () => {4    fc.assert(5      fc.property(posRomanNumberArb(), (posRomanNumber) => {6        expect(posRomanNumber).toBeGreaterThanOrEqual(1);7      })8    );9  });10});11const {posRomanNumberArb} = require('fast-check-monorepo');12describe('posRomanNumberArb', () => {13  it('should generate a positive roman number', () => {14    fc.assert(15      fc.property(posRomanNumberArb(), (posRomanNumber) => {16        expect(posRomanNumber).toBeGreaterThanOrEqual(1);17      })18    );19  });20});21const {posRomanNumberArb} = require('fast-check-monorepo');22describe('posRomanNumberArb', () => {23  it('should generate a positive roman number', () => {24    fc.assert(25      fc.property(posRomanNumberArb(), (posRomanNumber) => {26        expect(posRomanNumber).toBeGreaterThanOrEqual(1);27      })28    );29  });30});31const {posRomanNumberArb} = require('fast-check-monorepo');32describe('posRomanNumberArb', () => {33  it('should generate a positive roman number', () => {34    fc.assert(35      fc.property(posRomanNumberArb(), (posRomanNumber) => {36        expect(posRomanNumber).toBeGreaterThanOrEqual(1);37      })38    );39  });40});41const {posRomanNumberArb} = require('fast-check-monorepo');42describe('posRomanNumberArb', () => {43  it('should generate a positive roman number', () => {44    fc.assert(45      fc.property(posRomanNumberArb(), (posRomanNumber) => {46        expect(posRomanNumber).toBeGreaterThanOrEqual(1);47      })

Using AI Code Generation

1const fc = require('fast-check');2const { posRomanNumberArb } = require('fast-check-monorepo');3const romanToArabic = (roman) => {4  const romanNumeralMap = {5  };6  let arabic = 0;7  for (const [r, a] of Object.entries(romanNumeralMap)) {8    while (roman.startsWith(r)) {9      roman = roman.slice(r.length);10      arabic += a;11    }12  }13  return arabic;14};15fc.assert(16  fc.property(posRomanNumberArb(), (roman) => {17    const arabic = romanToArabic(roman);18    return arabic > 0;19  })20);21√ No issues found on 1000 tests (0.2s)

Using AI Code Generation

1const fc = require('fast-check');2const posRomanNumberArb = require('fast-check-monorepo').posRomanNumberArb;3function convertRomanToArabic(romanNumber) {4  var romanNumber = romanNumber.toUpperCase();5  var romanNumberArray = romanNumber.split("");6  var conversionArray = [];7  var total = 0;8  var conversion = {9  };10  for (var i = 0; i < romanNumberArray.length; i++) {11    for (var key in conversion) {12      if (romanNumberArray[i] == key) {13        conversionArray.push(conversion[key]);14      }15    }16  }17  for (var i = 0; i < conversionArray.length; i++) {18    if (conversionArray[i] < conversionArray[i + 1]) {19      conversionArray[i] = conversionArray[i] * -1;20      total += conversionArray[i];21    } else {22      total += conversionArray[i];23    }24  }25  return total;26}27function convertArabicToRoman(arabicNumber) {28  var arabicNumberArray = arabicNumber.toString().split("");29  var romanNumberArray = [];30  var romanNumber = "";31  var conversion = {32  };33  for (var i = 0; i < arabicNumberArray.length; i++) {34    if (arabicNumberArray[i] == 0) {35      arabicNumberArray.splice(i, 1);36      i--;37    } else if (arabicNumberArray[i] == 1

Using AI Code Generation

1const arb = require('fast-check-monorepo').posRomanNumberArb;2const arbRoman = arb(1, 1000);3const arbRomanNumber = arbRoman.generator(10);4arbRomanNumber.forEach((romanNumber) => {5    const arabicNumber = convertRomanToArabic(romanNumber);6    const convertedRomanNumber = convertArabicToRoman(arabicNumber);7    console.log('Roman number is: ' + romanNumber);8    console.log('Converted roman number is: ' + convertedRomanNumber);9    console.log('Arabic number is: ' + arabicNumber);10    console.log('Converted arabic number is: ' + convertRomanToArabic(convertedRomanNumber));11    console.log('Are the roman numbers equal? ' + (romanNumber === convertedRomanNumber));12    console.log('Are the arabic numbers equal? ' + (arabicNumber === convertRomanToArabic(convertedRomanNumber)));13});14function convertRomanToArabic(romanNumber) {15        {roman: 'M', arabic: 1000},16        {roman: 'CM', arabic: 900},17        {roman: 'D', arabic: 500},18        {roman: 'CD', arabic: 400},19        {roman: 'C', arabic: 100},20        {roman: 'XC', arabic: 90},21        {roman: 'L', arabic: 50},22        {roman: 'XL', arabic: 40},23        {roman: 'X', arabic: 10},24        {roman: 'IX', arabic: 9},25        {roman: 'V', arabic: 5},26        {roman: 'IV', arabic: 4},27        {roman: 'I', arabic: 1}28    ];29    let arabicNumber = 0;30    for (let i = 0; i < romanNumeralList.length; i++) {31        while (romanNumber.indexOf(romanNumeralList[i].roman) === 0) {

Using AI Code Generation

1const fc = require('fast-check');2const {posRomanNumberArb} = require('fast-check-monorepo');3const arb = posRomanNumberArb();4fc.assert(5  fc.property(arb, (s) => {6    return s.length > 0;7  })8);9const arb2 = fc.posRomanNumberArb();10fc.assert(11  fc.property(arb2, (s) => {12    return s.length > 0;13  })14);15const arb3 = fc.posRomanNumberArb;16fc.assert(17  fc.property(arb3, (s) => {18    return s.length > 0;19  })20);21fc.assert(22  fc.property(fc.posRomanNumberArb, (s) => {23    return s.length > 0;24  })25);26const arb4 = fc.posRomanNumberArb();27fc.assert(28  fc.property(arb4, (s) => {29    return s.length > 0;30  })31);32const arb5 = fc.posRomanNumberArb();33fc.assert(34  fc.property(arb5, (s) => {35    return s.length > 0;36  })37);38fc.assert(39  fc.property(fc.posRomanNumberArb(), (s) => {40    return s.length > 0;41  })42);43fc.assert(44  fc.property(fc.posRomanNumberArb(), (s) => {

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.