TestMu Conference is Back! Future of Testing + AIRegister for Free

How to use sizeForArbitraryArb method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

MaxLengthFromMinLength.spec.ts

Source:MaxLengthFromMinLength.spec.ts

1import fc from 'fast-check';2import {3  DefaultSize,4  depthBiasFromSizeForArbitrary,5  maxGeneratedLengthFromSizeForArbitrary,6  maxLengthFromMinLength,7  MaxLengthUpperBound,8  relativeSizeToSize,9  resolveSize,10} from '../../../../../src/arbitrary/_internals/helpers/MaxLengthFromMinLength';11import { withConfiguredGlobal } from '../../__test-helpers__/GlobalSettingsHelpers';12import {13  sizeArb,14  isSmallerSize,15  relativeSizeArb,16  sizeForArbitraryArb,17  sizeRelatedGlobalConfigArb,18} from '../../__test-helpers__/SizeHelpers';19describe('maxLengthFromMinLength', () => {20  it('should result into higher or equal maxLength given higher size', () => {21    fc.assert(22      fc.property(sizeArb, sizeArb, fc.integer({ min: 0, max: MaxLengthUpperBound }), (sa, sb, minLength) => {23        // Arrange24        const [smallSize, largeSize] = isSmallerSize(sa, sb) ? [sa, sb] : [sb, sa];25        // Act / Assert26        expect(maxLengthFromMinLength(minLength, smallSize)).toBeLessThanOrEqual(27          maxLengthFromMinLength(minLength, largeSize)28        );29      })30    );31  });32  it('should result into higher or equal maxLength given higher minLength', () => {33    fc.assert(34      fc.property(35        sizeArb,36        fc.integer({ min: 0, max: MaxLengthUpperBound }),37        fc.integer({ min: 0, max: MaxLengthUpperBound }),38        (size, minLengthA, minLengthB) => {39          // Arrange40          const [smallMinLength, largeMinLength] =41            minLengthA < minLengthB ? [minLengthA, minLengthB] : [minLengthB, minLengthA];42          // Act / Assert43          expect(maxLengthFromMinLength(smallMinLength, size)).toBeLessThanOrEqual(44            maxLengthFromMinLength(largeMinLength, size)45          );46        }47      )48    );49  });50});51describe('maxGeneratedLengthFromSizeForArbitrary', () => {52  it('should only consider the received size when set to Size', () => {53    fc.assert(54      fc.property(55        sizeRelatedGlobalConfigArb,56        sizeArb,57        fc.integer({ min: 0, max: MaxLengthUpperBound }),58        fc.integer({ min: 0, max: MaxLengthUpperBound }),59        fc.boolean(),60        (config, size, lengthA, lengthB, specifiedMaxLength) => {61          // Arrange62          const [minLength, maxLength] = lengthA < lengthB ? [lengthA, lengthB] : [lengthB, lengthA];63          // Act64          const computedLength = withConfiguredGlobal(config, () =>65            maxGeneratedLengthFromSizeForArbitrary(size, minLength, maxLength, specifiedMaxLength)66          );67          const expectedLength = Math.min(maxLengthFromMinLength(minLength, size), maxLength);68          // Assert69          expect(computedLength).toBe(expectedLength);70        }71      )72    );73  });74  it('should behave as its equivalent Size taking into account global settings when receiving a RelativeSize', () => {75    fc.assert(76      fc.property(77        sizeRelatedGlobalConfigArb,78        relativeSizeArb,79        fc.integer({ min: 0, max: MaxLengthUpperBound }),80        fc.integer({ min: 0, max: MaxLengthUpperBound }),81        fc.boolean(),82        (config, size, lengthA, lengthB, specifiedMaxLength) => {83          // Arrange84          const { baseSize: defaultSize = DefaultSize } = config;85          const equivalentSize = relativeSizeToSize(size, defaultSize);86          const [minLength, maxLength] = lengthA < lengthB ? [lengthA, lengthB] : [lengthB, lengthA];87          // Act88          const computedLength = withConfiguredGlobal(config, () =>89            maxGeneratedLengthFromSizeForArbitrary(size, minLength, maxLength, specifiedMaxLength)90          );91          const expectedLength = maxGeneratedLengthFromSizeForArbitrary(92            equivalentSize,93            minLength,94            maxLength,95            specifiedMaxLength96          );97          // Assert98          expect(computedLength).toBe(expectedLength);99        }100      )101    );102  });103  it('should behave as its resolved Size when in unspecified max mode', () => {104    fc.assert(105      fc.property(106        sizeRelatedGlobalConfigArb,107        fc.oneof(sizeArb, relativeSizeArb),108        fc.integer({ min: 0, max: MaxLengthUpperBound }),109        fc.integer({ min: 0, max: MaxLengthUpperBound }),110        (config, size, lengthA, lengthB) => {111          // Arrange112          const resolvedSize = withConfiguredGlobal(config, () => resolveSize(size));113          const [minLength, maxLength] = lengthA < lengthB ? [lengthA, lengthB] : [lengthB, lengthA];114          // Act115          const computedLength = withConfiguredGlobal(config, () =>116            maxGeneratedLengthFromSizeForArbitrary(size, minLength, maxLength, false)117          );118          const expectedLength = withConfiguredGlobal(config, () =>119            maxGeneratedLengthFromSizeForArbitrary(resolvedSize, minLength, maxLength, false)120          );121          // Assert122          expect(computedLength).toBe(expectedLength);123        }124      )125    );126  });127  it('should only consider the received maxLength when set to "max"', () => {128    fc.assert(129      fc.property(130        sizeRelatedGlobalConfigArb,131        fc.integer({ min: 0, max: MaxLengthUpperBound }),132        fc.integer({ min: 0, max: MaxLengthUpperBound }),133        fc.boolean(),134        (config, lengthA, lengthB, specifiedMaxLength) => {135          // Arrange136          const size = 'max';137          const [minLength, maxLength] = lengthA < lengthB ? [lengthA, lengthB] : [lengthB, lengthA];138          // Act139          const computedLength = withConfiguredGlobal(config, () =>140            maxGeneratedLengthFromSizeForArbitrary(size, minLength, maxLength, specifiedMaxLength)141          );142          // Assert143          expect(computedLength).toBe(maxLength);144        }145      )146    );147  });148  it('should ignore specifiedMaxLength whenever size specified', () => {149    fc.assert(150      fc.property(151        sizeRelatedGlobalConfigArb,152        sizeForArbitraryArb,153        fc.integer({ min: 0, max: MaxLengthUpperBound }),154        fc.integer({ min: 0, max: MaxLengthUpperBound }),155        (config, size, lengthA, lengthB) => {156          // Arrange157          const [minLength, maxLength] = lengthA < lengthB ? [lengthA, lengthB] : [lengthB, lengthA];158          // Act159          const computedLength = withConfiguredGlobal(config, () =>160            maxGeneratedLengthFromSizeForArbitrary(size, minLength, maxLength, false)161          );162          const expectedLength = withConfiguredGlobal(config, () =>163            maxGeneratedLengthFromSizeForArbitrary(size, minLength, maxLength, true)164          );165          // Assert166          expect(computedLength).toBe(expectedLength);167        }168      )169    );170  });171  it('should fallback to "max" whenever no size specified but maxLength specified when defaultSizeToMaxWhenMaxSpecified true or unset', () => {172    fc.assert(173      fc.property(174        sizeRelatedGlobalConfigArb,175        fc.integer({ min: 0, max: MaxLengthUpperBound }),176        fc.integer({ min: 0, max: MaxLengthUpperBound }),177        (incompleteConfig, lengthA, lengthB) => {178          // Arrange179          const config = { ...incompleteConfig, defaultSizeToMaxWhenMaxSpecified: true };180          const [minLength, maxLength] = lengthA < lengthB ? [lengthA, lengthB] : [lengthB, lengthA];181          // Act182          const computedLength = withConfiguredGlobal(config, () =>183            maxGeneratedLengthFromSizeForArbitrary(undefined, minLength, maxLength, true)184          );185          const expectedLength = withConfiguredGlobal(config, () =>186            maxGeneratedLengthFromSizeForArbitrary('max', minLength, maxLength, true)187          );188          // Assert189          expect(computedLength).toBe(expectedLength);190        }191      )192    );193  });194  it('should fallback to baseSize (or default) whenever no size specified and no maxLength specified', () => {195    fc.assert(196      fc.property(197        sizeRelatedGlobalConfigArb,198        fc.integer({ min: 0, max: MaxLengthUpperBound }),199        fc.integer({ min: 0, max: MaxLengthUpperBound }),200        (config, lengthA, lengthB) => {201          // Arrange202          const [minLength, maxLength] = lengthA < lengthB ? [lengthA, lengthB] : [lengthB, lengthA];203          const { baseSize: defaultSize = DefaultSize } = config;204          // Act205          const computedLength = withConfiguredGlobal(config, () =>206            maxGeneratedLengthFromSizeForArbitrary(undefined, minLength, maxLength, false)207          );208          const expectedLength = maxGeneratedLengthFromSizeForArbitrary(defaultSize, minLength, maxLength, false);209          // Assert210          expect(computedLength).toBe(expectedLength);211        }212      )213    );214  });215  it('should always return a length being between minLength and maxLength', () => {216    fc.assert(217      fc.property(218        sizeRelatedGlobalConfigArb,219        fc.option(sizeForArbitraryArb, { nil: undefined }),220        fc.integer({ min: 0, max: MaxLengthUpperBound }),221        fc.integer({ min: 0, max: MaxLengthUpperBound }),222        fc.boolean(),223        (config, size, lengthA, lengthB, specifiedMaxLength) => {224          // Arrange225          const [minLength, maxLength] = lengthA < lengthB ? [lengthA, lengthB] : [lengthB, lengthA];226          // Act227          const computedLength = withConfiguredGlobal(config, () =>228            maxGeneratedLengthFromSizeForArbitrary(size, minLength, maxLength, specifiedMaxLength)229          );230          // Assert231          expect(computedLength).toBeGreaterThanOrEqual(minLength);232          expect(computedLength).toBeLessThanOrEqual(maxLength);233        }234      )235    );236  });237});238describe('depthSizeFromSizeForArbitrary', () => {239  it('should only consider the received depthSize when set to a numeric value', () => {240    fc.assert(241      fc.property(242        sizeRelatedGlobalConfigArb,243        fc.double({ min: 0 }),244        fc.boolean(),245        (config, size, specifiedMaxDepth) => {246          // Arrange / Act247          const computedDepthBias = withConfiguredGlobal(config, () =>248            depthBiasFromSizeForArbitrary(size, specifiedMaxDepth)249          );250          // Assert251          expect(computedDepthBias).toBe(1 / size);252        }253      )254    );255  });256  it('should only consider the received size when set to Size', () => {257    fc.assert(258      fc.property(sizeRelatedGlobalConfigArb, sizeArb, fc.boolean(), (config, size, specifiedMaxDepth) => {259        // Arrange / Act260        const computedDepthBias = withConfiguredGlobal(config, () =>261          depthBiasFromSizeForArbitrary(size, specifiedMaxDepth)262        );263        const expectedDepthBias = { xsmall: 1, small: 1 / 2, medium: 1 / 4, large: 1 / 8, xlarge: 1 / 16 }[size];264        // Assert265        expect(computedDepthBias).toBe(expectedDepthBias);266      })267    );268  });269  it('should behave as its equivalent Size taking into account global settings when receiving a RelativeSize', () => {270    fc.assert(271      fc.property(sizeRelatedGlobalConfigArb, relativeSizeArb, fc.boolean(), (config, size, specifiedMaxDepth) => {272        // Arrange273        const { baseSize: defaultSize = DefaultSize } = config;274        const equivalentSize = relativeSizeToSize(size, defaultSize);275        // Act276        const computedDepthBias = withConfiguredGlobal(config, () =>277          depthBiasFromSizeForArbitrary(size, specifiedMaxDepth)278        );279        const expectedDepthBias = depthBiasFromSizeForArbitrary(equivalentSize, false);280        // Assert281        expect(computedDepthBias).toBe(expectedDepthBias);282      })283    );284  });285  it('should always return 0 if size is max whatever the global configuration', () => {286    fc.assert(287      fc.property(sizeRelatedGlobalConfigArb, fc.boolean(), (config, specifiedMaxDepth) => {288        // Arrange / Act289        const computedDepthBias = withConfiguredGlobal(config, () =>290          depthBiasFromSizeForArbitrary('max', specifiedMaxDepth)291        );292        // Assert293        expect(computedDepthBias).toBe(0);294      })295    );296  });297  it('should always return 0 if both specifiedMaxDepth and defaultSizeToMaxWhenMaxSpecified are true and size unset', () => {298    fc.assert(299      fc.property(sizeRelatedGlobalConfigArb, (config) => {300        // Arrange / Act301        const computedDepthBias = withConfiguredGlobal({ ...config, defaultSizeToMaxWhenMaxSpecified: true }, () =>302          depthBiasFromSizeForArbitrary(undefined, true)303        );304        // Assert305        expect(computedDepthBias).toBe(0);306      })307    );308  });309});310describe('relativeSizeToSize', () => {311  it('should offset by -4 when "-4"', () => {312    const relativeSize = '-4';313    expect(relativeSizeToSize(relativeSize, 'xsmall')).toBe('xsmall');314    expect(relativeSizeToSize(relativeSize, 'small')).toBe('xsmall');315    expect(relativeSizeToSize(relativeSize, 'medium')).toBe('xsmall');316    expect(relativeSizeToSize(relativeSize, 'large')).toBe('xsmall');317    expect(relativeSizeToSize(relativeSize, 'xlarge')).toBe('xsmall');318  });319  it('should offset by -1 when "-1"', () => {320    const relativeSize = '-1';321    expect(relativeSizeToSize(relativeSize, 'xsmall')).toBe('xsmall');322    expect(relativeSizeToSize(relativeSize, 'small')).toBe('xsmall');323    expect(relativeSizeToSize(relativeSize, 'medium')).toBe('small');324    expect(relativeSizeToSize(relativeSize, 'large')).toBe('medium');325    expect(relativeSizeToSize(relativeSize, 'xlarge')).toBe('large');326  });327  it('should not offset when "="', () => {328    const relativeSize = '=';329    expect(relativeSizeToSize(relativeSize, 'xsmall')).toBe('xsmall');330    expect(relativeSizeToSize(relativeSize, 'small')).toBe('small');331    expect(relativeSizeToSize(relativeSize, 'medium')).toBe('medium');332    expect(relativeSizeToSize(relativeSize, 'large')).toBe('large');333    expect(relativeSizeToSize(relativeSize, 'xlarge')).toBe('xlarge');334  });335  it('should offset by +1 when "+1"', () => {336    const relativeSize = '+1';337    expect(relativeSizeToSize(relativeSize, 'xsmall')).toBe('small');338    expect(relativeSizeToSize(relativeSize, 'small')).toBe('medium');339    expect(relativeSizeToSize(relativeSize, 'medium')).toBe('large');340    expect(relativeSizeToSize(relativeSize, 'large')).toBe('xlarge');341    expect(relativeSizeToSize(relativeSize, 'xlarge')).toBe('xlarge');342  });343  it('should offset by +4 when "+4"', () => {344    const relativeSize = '+4';345    expect(relativeSizeToSize(relativeSize, 'xsmall')).toBe('xlarge');346    expect(relativeSizeToSize(relativeSize, 'small')).toBe('xlarge');347    expect(relativeSizeToSize(relativeSize, 'medium')).toBe('xlarge');348    expect(relativeSizeToSize(relativeSize, 'large')).toBe('xlarge');349    expect(relativeSizeToSize(relativeSize, 'xlarge')).toBe('xlarge');350  });...

base64String.spec.ts

Source:base64String.spec.ts

1import * as fc from 'fast-check';2import { base64String } from '../../../src/arbitrary/base64String';3import {4  assertProduceValuesShrinkableWithoutContext,5  assertProduceCorrectValues,6  assertProduceSameValueGivenSameSeed,7} from './__test-helpers__/ArbitraryAssertions';8import * as ArrayMock from '../../../src/arbitrary/array';9import { fakeArbitrary } from './__test-helpers__/ArbitraryHelpers';10import { Value } from '../../../src/check/arbitrary/definition/Value';11import { buildShrinkTree, renderTree } from './__test-helpers__/ShrinkTree';12import { sizeForArbitraryArb } from './__test-helpers__/SizeHelpers';13function beforeEachHook() {14  jest.resetModules();15  jest.restoreAllMocks();16  fc.configureGlobal({ beforeEach: beforeEachHook });17}18beforeEach(beforeEachHook);19describe('base64String', () => {20  it('should accept any constraints accepting at least one length multiple of 4', () =>21    fc.assert(22      fc.property(23        fc.nat({ max: 5 }),24        fc.integer({ min: 3, max: 30 }),25        fc.boolean(),26        fc.boolean(),27        (min, gap, withMin, withMax) => {28          // Arrange29          const constraints = { minLength: withMin ? min : undefined, maxLength: withMax ? min + gap : undefined };30          // Act / Assert31          expect(() => base64String(constraints)).not.toThrowError();32        }33      )34    ));35  it('should reject any constraints not accepting at least one length multiple of 4', () =>36    fc.assert(37      fc.property(fc.nat({ max: 30 }), fc.nat({ max: 2 }), (min, gap) => {38        // Arrange39        const constraints = { minLength: min, maxLength: min + gap };40        let includesMultipleOf4 = false;41        for (let acceptedLength = constraints.minLength; acceptedLength <= constraints.maxLength; ++acceptedLength) {42          includesMultipleOf4 = includesMultipleOf4 || acceptedLength % 4 === 0;43        }44        fc.pre(!includesMultipleOf4);45        // Act / Assert46        expect(() => base64String(constraints)).toThrowError();47      })48    ));49  it('should always query for arrays that will produce length fitting the requested range', () =>50    fc.assert(51      fc.property(52        fc.nat({ max: 30 }),53        fc.integer({ min: 3, max: 30 }),54        fc.boolean(),55        fc.boolean(),56        (min, gap, withMin, withMax) => {57          // Arrange58          const constraints = { minLength: withMin ? min : undefined, maxLength: withMax ? min + gap : undefined };59          const array = jest.spyOn(ArrayMock, 'array');60          const { instance: arrayInstance, map } = fakeArbitrary();61          array.mockReturnValue(arrayInstance);62          map.mockReturnValue(arrayInstance); // fake map63          // Act64          base64String(constraints);65          // Assert66          expect(array).toHaveBeenCalledTimes(1);67          const constraintsOnArray = array.mock.calls[0][1]!;68          const rounded4 = (value: number) => {69            switch (value % 4) {70              case 0:71                return value;72              case 1:73                return value;74              case 2:75                return value + 2;76              case 3:77                return value + 1;78            }79          };80          if (constraints.minLength !== undefined) {81            expect(constraintsOnArray.minLength).toBeDefined();82            expect(rounded4(constraintsOnArray.minLength!)).toBeGreaterThanOrEqual(constraints.minLength);83          }84          if (constraints.maxLength !== undefined) {85            expect(constraintsOnArray.maxLength).toBeDefined();86            expect(rounded4(constraintsOnArray.maxLength!)).toBeLessThanOrEqual(constraints.maxLength);87          }88          if (constraintsOnArray.minLength !== undefined && constraintsOnArray.maxLength !== undefined) {89            expect(constraintsOnArray.maxLength).toBeGreaterThanOrEqual(constraintsOnArray.minLength);90          }91        }92      )93    ));94  it('should always forward constraints on size to the underlying arbitrary when provided', () =>95    fc.assert(96      fc.property(97        fc.nat({ max: 5 }),98        fc.integer({ min: 3, max: 30 }),99        fc.boolean(),100        fc.boolean(),101        sizeForArbitraryArb,102        (min, gap, withMin, withMax, size) => {103          // Arrange104          const constraints = {105            minLength: withMin ? min : undefined,106            maxLength: withMax ? min + gap : undefined,107            size,108          };109          const array = jest.spyOn(ArrayMock, 'array');110          const { instance: arrayInstance, map } = fakeArbitrary();111          array.mockReturnValue(arrayInstance);112          map.mockReturnValue(arrayInstance); // fake map113          // Act114          base64String(constraints);115          // Assert116          expect(array).toHaveBeenCalledWith(expect.anything(), expect.objectContaining({ size }));117        }118      )119    ));120});121describe('base64String (integration)', () => {122  type Extra = { minLength?: number; maxLength?: number };123  const extraParameters: fc.Arbitrary<Extra> = fc124    .tuple(fc.nat({ max: 30 }), fc.integer({ min: 3, max: 30 }), fc.boolean(), fc.boolean())125    .map(([min, gap, withMin, withMax]) => ({126      minLength: withMin ? min : undefined,127      // Minimal gap=3 to ensure we have at least one possible multiple of 4 between min and max128      maxLength: withMax ? min + gap : undefined,129    }));130  const isCorrect = (value: string, extra: Extra) => {131    if (extra.minLength !== undefined) {132      expect(value.length).toBeGreaterThanOrEqual(extra.minLength);133    }134    if (extra.maxLength !== undefined) {135      expect(value.length).toBeLessThanOrEqual(extra.maxLength);136    }137    const padStart = value.indexOf('=');138    const beforeEqualValue = value.substr(0, padStart === -1 ? value.length : padStart);139    const afterEqualValue = value.substr(padStart === -1 ? value.length : padStart);140    for (const c of beforeEqualValue.split('')) {141      expect('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+/'.split('')).toContainEqual(c);142    }143    expect(['', '=', '==']).toContainEqual(afterEqualValue);144  };145  const base64StringBuilder = (extra: Extra) => base64String(extra);146  it('should produce the same values given the same seed', () => {147    assertProduceSameValueGivenSameSeed(base64StringBuilder, { extraParameters });148  });149  it('should only produce correct values', () => {150    assertProduceCorrectValues(base64StringBuilder, isCorrect, { extraParameters });151  });152  it('should produce values seen as shrinkable without any context', () => {153    assertProduceValuesShrinkableWithoutContext(base64StringBuilder, { extraParameters });154  });155  // assertShrinkProducesSameValueWithoutInitialContext is not applicable for base64String has some values will not shrink exactly the same way.156  // For instance: 'abcde' will be mapped to 'abcd', with default shrink it will try to shrink from 'abcde'. With context-less one it will start from 'abcd'.157  it.each`158    source                               | constraints159    ${'0123ABC==' /* invalid base 64 */} | ${{}}160    ${'AB==' /* not large enough */}     | ${{ minLength: 5 }}161    ${'0123AB==' /* too large */}        | ${{ maxLength: 7 }}162  `('should not be able to generate $source with fc.base64String($constraints)', ({ source, constraints }) => {163    // Arrange / Act164    const arb = base64String(constraints);165    const out = arb.canShrinkWithoutContext(source);166    // Assert167    expect(out).toBe(false);168  });169  it.each`170    rawValue171    ${'ABCD'}172    ${'0123AB=='}173    ${'01230123012301230123AB=='}174    ${'ABCD'.repeat(50)}175  `('should be able to shrink $rawValue', ({ rawValue }) => {176    // Arrange177    const arb = base64String();178    const value = new Value(rawValue, undefined);179    // Act180    const renderedTree = renderTree(buildShrinkTree(arb, value, { numItems: 100 })).join('\n');181    // Assert182    expect(arb.canShrinkWithoutContext(rawValue)).toBe(true);183    expect(renderedTree).toMatchSnapshot();184  });...

SizeHelpers.ts

Source:SizeHelpers.ts

1import { assert } from 'console';2import fc from 'fast-check';3import {4  RelativeSize,5  Size,6  SizeForArbitrary,7} from '../../../../src/arbitrary/_internals/helpers/MaxLengthFromMinLength';8const allSizeOrdered = ['xsmall', 'small', 'medium', 'large', 'xlarge'] as const;9export const sizeArb = fc.constantFrom<Size>(...allSizeOrdered);10export const isSmallerSize = (sa: Size, sb: Size): boolean => allSizeOrdered.indexOf(sa) < allSizeOrdered.indexOf(sb);11const allRelativeSize = ['-4', '-3', '-2', '-1', '=', '+1', '+2', '+3', '+4'] as const;12export const relativeSizeArb = fc.constantFrom<RelativeSize>(...allRelativeSize);13const allSizeForArbitrary = [...allSizeOrdered, ...allRelativeSize, 'max'] as const; // WARNING: it does not include undefined14export const sizeForArbitraryArb = fc.constantFrom<SizeForArbitrary>(...allSizeForArbitrary);15export const sizeRelatedGlobalConfigArb = fc.record(16  { baseSize: sizeArb, defaultSizeToMaxWhenMaxSpecified: fc.boolean() },17  { requiredKeys: [] }18);19// Type check that helpers are covering all the possibilities20const failIfMissingSize: Size extends typeof allSizeOrdered[number] ? true : never = true;21const failIfMissingRelativeSize: RelativeSize extends typeof allRelativeSize[number] ? true : never = true;22const failIfMissingSizeForArbitrary: NonNullable<SizeForArbitrary> extends typeof allSizeForArbitrary[number]23  ? true24  : never = true;25assert(failIfMissingSize); // just not to appear unused26assert(failIfMissingRelativeSize); // just not to appear unused...

Using AI Code Generation

1const fc = require("fast-check");2const SizeArbitrary = require("fast-check/lib/check/arbitrary/SizeArbitrary.js");3const sizeArb = new SizeArbitrary.SizeArbitrary();4const size = sizeArb.sizeForArbitraryArb(fc.integer());5const fc = require("fast-check");6const SizeArbitrary = require("fast-check/lib/check/arbitrary/SizeArbitrary.js");7const sizeArb = new SizeArbitrary.SizeArbitrary();8const size = sizeArb.sizeForArbitraryArb(fc.integer());9const fc = require("fast-check");10const SizeArbitrary = require("fast-check/lib/check/arbitrary/SizeArbitrary.js");11const sizeArb = new SizeArbitrary.SizeArbitrary();12const size = sizeArb.sizeForArbitraryArb(fc.integer());13const fc = require("fast-check");14const SizeArbitrary = require("fast-check/lib/check/arbitrary/SizeArbitrary.js");15const sizeArb = new SizeArbitrary.SizeArbitrary();16const size = sizeArb.sizeForArbitraryArb(fc.integer());17const fc = require("fast-check");18const SizeArbitrary = require("fast-check/lib/check/arbitrary/SizeArbitrary.js");19const sizeArb = new SizeArbitrary.SizeArbitrary();20const size = sizeArb.sizeForArbitraryArb(fc.integer());21const fc = require("fast-check");22const SizeArbitrary = require("fast-check/lib/check/arbitrary/SizeArbitrary.js");

Using AI Code Generation

1const { sizeForArbitraryArb } = require('fast-check');2const { array, oneof, string, number, constant } = require('fast-check');3const arb = oneof(4  array(string()),5  array(number()),6  array(oneof(string(), number())),7  array(oneof(constant('a'), constant('b'), constant('c'))),8  array(oneof(constant(1), constant(2), constant(3)))9);10const size = sizeForArbitraryArb(arb);11console.log(size);12const { sizeForArbitraryArb } = require('fast-check');13const { array, oneof, string, number, constant } = require('fast-check');14const arb = oneof(15  array(string()),16  array(number()),17  array(oneof(string(), number())),18  array(oneof(constant('a'), constant('b'), constant('c'))),19  array(oneof(constant(1), constant(2), constant(3)))20);21const size = sizeForArbitraryArb(arb);22console.log(size);23const { sizeForArbitraryArb } = require('fast-check');24const { array, oneof, string, number, constant } = require('fast-check');25const arb = oneof(26  array(string()),27  array(number()),28  array(oneof(string(), number())),29  array(oneof(constant('a'), constant('b'), constant('c'))),30  array(oneof(constant(1), constant(2), constant(3)))31);32const size = sizeForArbitraryArb(arb);33console.log(size);34const { sizeForArbitraryArb } = require('fast-check');35const { array, oneof, string, number, constant } = require('fast-check');36const arb = oneof(37  array(string()),38  array(number()),39  array(oneof(string(), number())),40  array(oneof(constant('a'), constant('b'), constant('c'))),41  array(oneof(constant(1), constant(2), constant(3)))42);

Using AI Code Generation

1const fc = require('fast-check')2const {sizeForArbitraryArb} = require('fast-check-monorepo')3const arb = fc.array(fc.integer());4const arb1 = sizeForArbitraryArb(arb, 20)5fc.assert(fc.property(arb1, a => a.length === 20))6const fc = require('fast-check')7const {sizeForArbitraryArb} = require('fast-check-monorepo')8const arb = fc.array(fc.integer());9const arb1 = sizeForArbitraryArb(arb, 20)10fc.assert(fc.property(arb1, a => a.length === 20))11const fc = require('fast-check')12const {sizeForArbitraryArb} = require('fast-check-monorepo')13const arb = fc.array(fc.integer());14const arb1 = sizeForArbitraryArb(arb, 20)15fc.assert(fc.property(arb1, a => a.length === 20))16const fc = require('fast-check')17const {sizeForArbitraryArb} = require('fast-check-monorepo')18const arb = fc.array(fc.integer());19const arb1 = sizeForArbitraryArb(arb, 20)20fc.assert(fc.property(arb1, a => a.length === 20))21const fc = require('fast-check')22const {sizeForArbitraryArb} = require('fast-check-monorepo')23const arb = fc.array(fc.integer());24const arb1 = sizeForArbitraryArb(arb, 20)25fc.assert(fc.property(arb1, a => a.length === 20))

Using AI Code Generation

1const fc = require("fast-check");2const size = 3;3const type = "number";4const array = fc.sizeForArbitraryArb(size, fc[type]());5console.log(array);6const fc = require("fast-check");7const size = 3;8const type = "string";9const array = fc.sizeForArbitraryArb(size, fc[type]());10console.log(array);11const fc = require("fast-check");12const size = 3;13const type = "boolean";14const array = fc.sizeForArbitraryArb(size, fc[type]());15console.log(array);16const fc = require("fast-check");17const size = 3;18const type = "date";19const array = fc.sizeForArbitraryArb(size, fc[type]());20console.log(array);

Using AI Code Generation

1const fc = require('fast-check');2const sizeForArbitraryArb = require('fast-check/lib/arbitrary/_internals/SizeForArbitraryArb.js');3const sizeForArbitrary = sizeForArbitraryArb.default;4const sortedArb = sizeForArbitrary(fc.integer(), (size) => {5  return fc.array(fc.integer(), size, size);6}).map((array) => array.sort((a, b) => a - b));7fc.assert(8  fc.property(sortedArb, (array) => {9    for (let idx = 1; idx < array.length; ++idx) {10      if (array[idx - 1] > array[idx]) {11        return false;12      }13    }14    return true;15  })16);17const sortedArb = fc.array(fc.integer(), 10, 20).map((array) => array.sort((a, b) => a - b));18It is not a bug, it is a feature. In the second case, you are using the default export of the module, which is not exported by fast-check. So you need to use the default import syntax to import it:19import sizeForArbitraryArb from 'fast-check/lib/arbitrary/_internals/SizeForArbitraryArb.js';20import { sizeForArbitraryArb } from 'fast-check/lib/arbitrary/_internals/SizeForArbitraryArb.js';

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.