KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use weightedArbs method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

propgrammar.spec.js

Source:propgrammar.spec.js

1'use strict'2const parser    = require('../lib/index.js');3const expect    = require('chai').expect;4const proptypes = parser.proptypes;5const jsc       = require('jsverify');6const Prop         = proptypes.Prop;7const CompoundProp = proptypes.CompoundProp;8const AtomicProp   = proptypes.AtomicProp;9const NotProp      = proptypes.NotProp;10const AndProp      = proptypes.AndProp;11const OrProp       = proptypes.OrProp;12const ImplProp     = proptypes.ImplProp;13const BiCondProp   = proptypes.BiCondProp;14// whether a string successfully parses15function doesParse (s) {16  try {17    parser.parse(s)18    return true19  } catch (err) {20    return false21  }22}23const expected_results = [24  [ 'A',        new AtomicProp('A') ],25  [ '(A)',      new AtomicProp('A') ],26  [ '( (A))',   new AtomicProp('A') ],27  [ 'A ^ B',    new AndProp( 28                    new AtomicProp('A'),29                    new AtomicProp('B')30                  ) ],31  [ 'A v (B)',    new OrProp( 32                    new AtomicProp('A'),33                    new AtomicProp('B')34                  ) ],35  [ 'A -> B',   new ImplProp( 36                  new AtomicProp('A'),37                  new AtomicProp('B')38                ) ],39  [ 'A <-> B',  new BiCondProp( 40                  new AtomicProp('A'),41                  new AtomicProp('B')42                ) ],43  [ '(~(~(G)))',  new NotProp(44                    new NotProp(45                      new AtomicProp('G')46                    )47                  ) ],48  [ '( H )^(O)', new AndProp(49                    new AtomicProp('H'),50                    new AtomicProp('O')51                 ) ],52  [ '(~(M)) ^ ( O )',53                 new AndProp(54                    new NotProp(55                      new AtomicProp('M')56                    ),57                    new AtomicProp('O')58                 ) ],59  [ '~~A',      new NotProp(60                  new NotProp(61                    new AtomicProp('A')62                  )63                ) ],64  [ '~~AvB',    new OrProp(65                  new NotProp(66                    new NotProp(67                      new AtomicProp('A')68                    )69                  ),70                  new AtomicProp('B')71               ) ],72  [ 'Av~~B',    new OrProp(73                  new AtomicProp('A'),74                  new NotProp(75                    new NotProp(76                      new AtomicProp('B')77                    )78                  )79               ) ],80  [ 'AvBvC',    new OrProp(81                  new OrProp(82                    new AtomicProp('A'),83                    new AtomicProp('B')84                  ),85                  new AtomicProp('C')86                )],87  [ 'AvB^C',    new OrProp(88                  new AtomicProp('A'),89                  new AndProp(90                    new AtomicProp('B'),91                    new AtomicProp('C')92                  )93                )]94]95const bad_strings = [96  '',97  ' ',98  '\t',99  '\n',100  'Av',101  '  A',102  '~',103  'A~B',104  'Bv',105  'vB',106  '()',107  'a',108  'z',109  '1',110  '@',111  'AA',112  'A   ', // exprs need to be rtrimmed113  '   A'  // and ltrimmed114]115// generators for use with jsverify116const arbUpperChar = 117      jsc.integer(65,90).smap(String.fromCharCode, (c)=>c.charCodeAt(0)); 118const arbBiConnective = jsc.elements(['^', 'v', '->', '<->'])119// lacks a proper right inverse (i.e. map from joined to unjoined)120// const arbSmallProp = jsc.tuple([arbUpperChar, arbBiConnective, arbUpperChar]).smap( ( x)=>x.join("") )121const arbSmallProp = jsc.bless({122  'generator':123      jsc.generator.combine(124          arbUpperChar.generator,125          arbBiConnective.generator,126          arbUpperChar.generator,127          (p1, conn, p2) => [p1, conn, p2].join('')128      )129})130// array of those weights.131// So, if you have a random number n from 0 to 1,132// you can just iterated through the weights and choose this133// arb if n < weights[idx].134//135// e.g.136//   xs = [ ["a", 3], ["b", 2], ["c", 7] ]137//   new_xs = normalise(xs)138//   // new_xs is: [0.25, 0.41666, 1]139//140// used in the proposition generator below.141function normalise (weightedArbs) {142  var weights = []143  var total = 0144  weightedArbs.forEach((x) => {145    total = total + x[1]146    weights.push(x[1])147  })148  var tmp = 0149  for (var i = 0; i < weights.length; i++) {150    var w = weights[i]151    var asFloat = w / total152    tmp = tmp + asFloat153    weights[i] = tmp154  }155  return weights156}157// combinator to make new jsc arbitraries out of a weighted158// list of old.159// takes an array of [ [arb1,weight], [arb2,weight] ... ]160// (where the weights are numbers, and can add up to anything161// postive.)162// returns a random result from one of those.163const weightedOneof = (weightedArbs) => jsc.bless({164  generator: (size) => {165    var normalised = normalise(weightedArbs)166    var r = jsc.random.number(0, 1)167    for (var i = 0; i < normalised.length; i++) {168      if (r < normalised[i]) {169        return weightedArbs[i][0].generator(size)170      }171    };172  }173})174// combinator for use in letrec:175// given "proposition" arbitrary from tie(),176// produce compound props.177const mkCompoundProp = (propArb) => jsc.bless({178  'generator':179    jsc.generator.combine(180      jsc.generator.small(jsc.generator.small(propArb.generator)),181      arbBiConnective.generator,182      jsc.generator.small(jsc.generator.small(propArb.generator)),183      (p1, conn, p2) => {184        if (p1.length != 1) {185          p1 = '(' + p1 + ')'186        }187        if (p2.length != 1) {188          p2 = '(' + p2 + ')'189        }190        return [p1, conn, p2].join('')191      }192    )193})194// combinator for use in letrec:195// given "proposition" arbitrary from tie(),196// produce compound props.197//198// not yet used 'cos pretty printing rules are fiddlly to reverse.199const mkNotProp = (propArb) => jsc.bless({200  'generator':201    jsc.generator.combine(202      propArb.generator,203      (p) => {204        if (p.match(/^~?[A-Z]$/) || p.match(/^~\(/)) {205          return '~' + p206        } else {207          return '~(' + p + ')'208        }209      }210    )211})212// use letrec to manage mutually recursive definitions213// for generators.214const moreArbs = jsc.letrec(function (tie) {215  return {216    atom: arbUpperChar,217    biProp: mkCompoundProp(tie('prop')),218    notProp: mkNotProp(tie('prop')),219    prop: weightedOneof([ [tie('atom'), 3],220                           [tie('biProp'), 1]221                           // [tie("notProp"),1]222    ])223  }224})225const arbProp = moreArbs["prop"];226// props including 'not'.227// we can parse but not round-trip them228const complexArbs = jsc.letrec(function (tie) {229  return {230    atom: arbUpperChar,231    biProp: mkCompoundProp(tie('prop')),232    notProp: mkNotProp(tie('prop')),233    prop: weightedOneof([ [tie('atom'), 3],234                           [tie('biProp'), 1]235                           [tie("notProp"),1]236    ])237  }238})239const arbComplexProp = complexArbs["prop"];240// tests241describe('prop-parser', () => {242  describe('parse', () => {243    describe('should fail on bad strings', () => {244      for (var idx in bad_strings) {245        var input     = bad_strings[idx];246        var f         = function() { parser.parse(input) };247        248        it("should fail on " + JSON.stringify(input), () => {249          expect( f ).to.throw( );250        });251      }252    }),253    describe('should parse a bunch of other things', () => {254      for (var idx in expected_results) {255        var input     = expected_results[idx][0];256        var result    = parser.parse(input);257        var expected  = expected_results[idx][1];258        expect( result ).to.deep.equal( expected );259        it("should parse " + JSON.stringify(input), () => {260          expect( result ).to.deep.equal( expected );261        });262      }263    }),264    describe('successfully parses ...',()=>{265      jsc.property("single atoms", arbUpperChar, (c) => doesParse(c) )266      jsc.property("1-connective formulas", arbSmallProp, (c) => doesParse(c) );267      jsc.property("arbitrary props with no not", arbProp, (s) => 268        doesParse(s)   269      );270      //jsc.property("abritrary props with not", arbComplexProp, (s) => {271      //  var res = (s == null) || doesParse(s);272      //  if (s == null) {273      //    console.log("s was null");274      //  } else {275      //    console.log("s was not null" + JSON.stringify( [s] ) );276      //  }277      //  return res;278      //});279    })280    // only handles props w no not.281    describe('no-not props should roundtrip (modulo whitespace)',()=>{282      jsc.property("roundtrips", arbProp, (str) => {283        var parsed = parser.parse(str);284        var reStrung = proptypes.asciify( parsed.text )285                        .replace(/\s+/g, ""); 286        return str === reStrung;287      })288    })289  })...

oneof.ts

Source:oneof.ts

1import { Arbitrary, isArbitrary } from '../check/arbitrary/definition/Arbitrary';2import { safeMap, safeSlice } from '../utils/globals';3import { FrequencyArbitrary } from './_internals/FrequencyArbitrary';4import { DepthIdentifier } from './_internals/helpers/DepthContext';5import { DepthSize } from './_internals/helpers/MaxLengthFromMinLength';6/**7 * Conjonction of a weight and an arbitrary used by {@link oneof}8 * in order to generate values9 *10 * @remarks Since 1.18.011 * @public12 */13export interface WeightedArbitrary<T> {14  /**15   * Weight to be applied when selecting which arbitrary should be used16   * @remarks Since 0.0.717   */18  weight: number;19  /**20   * Instance of Arbitrary21   * @remarks Since 0.0.722   */23  arbitrary: Arbitrary<T>;24}25/**26 * Either an `Arbitrary<T>` or a `WeightedArbitrary<T>`27 * @remarks Since 3.0.028 * @public29 */30export type MaybeWeightedArbitrary<T> = Arbitrary<T> | WeightedArbitrary<T>;31/**32 * Infer the type of the Arbitrary produced by {@link oneof}33 * given the type of the source arbitraries34 *35 * @remarks Since 2.2.036 * @public37 */38export type OneOfValue<Ts extends MaybeWeightedArbitrary<unknown>[]> = {39  [K in keyof Ts]: Ts[K] extends MaybeWeightedArbitrary<infer U> ? U : never;40}[number];41/**42 * Constraints to be applied on {@link oneof}43 * @remarks Since 2.14.044 * @public45 */46export type OneOfConstraints = {47  /**48   * When set to true, the shrinker of oneof will try to check if the first arbitrary49   * could have been used to discover an issue. It allows to shrink trees.50   *51   * Warning: First arbitrary must be the one resulting in the smallest structures52   * for usages in deep tree-like structures.53   *54   * @remarks Since 2.14.055   */56  withCrossShrink?: boolean;57  /**58   * While going deeper and deeper within a recursive structure (see {@link letrec}),59   * this factor will be used to increase the probability to generate instances60   * of the first passed arbitrary.61   *62   * @remarks Since 2.14.063   */64  depthSize?: DepthSize;65  /**66   * Maximal authorized depth.67   * Once this depth has been reached only the first arbitrary will be used.68   *69   * @remarks Since 2.14.070   */71  maxDepth?: number;72  /**73   * Depth identifier can be used to share the current depth between several instances.74   *75   * By default, if not specified, each instance of oneof will have its own depth.76   * In other words: you can have depth=1 in one while you have depth=100 in another one.77   *78   * @remarks Since 2.14.079   */80  depthIdentifier?: DepthIdentifier | string;81};82/**83 * @internal84 */85function isOneOfContraints(86  param: OneOfConstraints | MaybeWeightedArbitrary<unknown> | undefined87): param is OneOfConstraints {88  return (89    param != null &&90    typeof param === 'object' &&91    // Arbitrary<unknown>92    !('generate' in param) &&93    // WeightedArbitrary<unknown>94    !('arbitrary' in param) &&95    !('weight' in param)96  );97}98/**99 * @internal100 */101function toWeightedArbitrary<T>(maybeWeightedArbitrary: MaybeWeightedArbitrary<T>): WeightedArbitrary<T> {102  if (isArbitrary(maybeWeightedArbitrary)) {103    return { arbitrary: maybeWeightedArbitrary, weight: 1 };104  }105  return maybeWeightedArbitrary;106}107/**108 * For one of the values generated by `...arbs` - with all `...arbs` equiprobable109 *110 * **WARNING**: It expects at least one arbitrary111 *112 * @param arbs - Arbitraries that might be called to produce a value113 *114 * @remarks Since 0.0.1115 * @public116 */117function oneof<Ts extends MaybeWeightedArbitrary<unknown>[]>(...arbs: Ts): Arbitrary<OneOfValue<Ts>>;118/**119 * For one of the values generated by `...arbs` - with all `...arbs` equiprobable120 *121 * **WARNING**: It expects at least one arbitrary122 *123 * @param constraints - Constraints to be applied when generating the values124 * @param arbs - Arbitraries that might be called to produce a value125 *126 * @remarks Since 2.14.0127 * @public128 */129function oneof<Ts extends MaybeWeightedArbitrary<unknown>[]>(130  constraints: OneOfConstraints,131  ...arbs: Ts132): Arbitrary<OneOfValue<Ts>>;133function oneof<Ts extends MaybeWeightedArbitrary<unknown>[]>(134  ...args: [...Ts] | [OneOfConstraints, ...Ts]135): Arbitrary<OneOfValue<Ts>> {136  // TODO With TypeScript 4.0 it will be possible to properly define typings for `oneof(...arbs, constraints)`137  const constraints = args[0];138  if (isOneOfContraints(constraints)) {139    const weightedArbs = safeMap(safeSlice(args, 1) as MaybeWeightedArbitrary<OneOfValue<Ts>>[], toWeightedArbitrary);140    return FrequencyArbitrary.from(weightedArbs, constraints, 'fc.oneof');141  }142  const weightedArbs = safeMap(args as MaybeWeightedArbitrary<OneOfValue<Ts>>[], toWeightedArbitrary);143  return FrequencyArbitrary.from(weightedArbs, {}, 'fc.oneof');144}...

option.ts

Source:option.ts

1import { constant } from './constant';2import { Arbitrary } from '../check/arbitrary/definition/Arbitrary';3import { FrequencyArbitrary, _Constraints as FrequencyContraints } from './_internals/FrequencyArbitrary';4import { DepthIdentifier } from './_internals/helpers/DepthContext';5import { DepthSize } from './_internals/helpers/MaxLengthFromMinLength';6import { safeHasOwnProperty } from '../utils/globals';7/**8 * Constraints to be applied on {@link option}9 * @remarks Since 2.2.010 * @public11 */12export interface OptionConstraints<TNil = null> {13  /**14   * The probability to build a nil value is of `1 / freq`15   * @remarks Since 1.17.016   */17  freq?: number;18  /**19   * The nil value (default would be null)20   * @remarks Since 1.17.021   */22  nil?: TNil;23  /**24   * While going deeper and deeper within a recursive structure (see {@link letrec}),25   * this factor will be used to increase the probability to generate nil.26   *27   * @remarks Since 2.14.028   */29  depthSize?: DepthSize;30  /**31   * Maximal authorized depth. Once this depth has been reached only nil will be used.32   *33   * @remarks Since 2.14.034   */35  maxDepth?: number;36  /**37   * Depth identifier can be used to share the current depth between several instances.38   *39   * By default, if not specified, each instance of option will have its own depth.40   * In other words: you can have depth=1 in one while you have depth=100 in another one.41   *42   * @remarks Since 2.14.043   */44  depthIdentifier?: DepthIdentifier | string;45}46/**47 * For either nil or a value coming from `arb` with custom frequency48 *49 * @param arb - Arbitrary that will be called to generate a non nil value50 * @param constraints - Constraints on the option(since 1.17.0)51 *52 * @remarks Since 0.0.653 * @public54 */55export function option<T, TNil = null>(56  arb: Arbitrary<T>,57  constraints: OptionConstraints<TNil> = {}58): Arbitrary<T | TNil> {59  const freq = constraints.freq == null ? 5 : constraints.freq;60  const nilValue = safeHasOwnProperty(constraints, 'nil') ? constraints.nil : (null as any);61  const nilArb = constant(nilValue);62  const weightedArbs = [63    { arbitrary: nilArb, weight: 1, fallbackValue: { default: nilValue } },64    { arbitrary: arb, weight: freq },65  ];66  const frequencyConstraints: FrequencyContraints = {67    withCrossShrink: true,68    depthSize: constraints.depthSize,69    maxDepth: constraints.maxDepth,70    depthIdentifier: constraints.depthIdentifier,71  };72  return FrequencyArbitrary.from(weightedArbs, frequencyConstraints, 'fc.option');...

Using AI Code Generation

1const { weightedArbs } = require('fast-check');2const arb1 = fc.integer(1, 100);3const arb2 = fc.integer(101, 200);4const arb3 = fc.integer(201, 300);5const arb = weightedArbs([6  { weight: 1, arb: arb1 },7  { weight: 2, arb: arb2 },8  { weight: 3, arb: arb3 },9]);10fc.assert(11  fc.property(arb, (v) => {12    return v >= 1 && v <= 300;13  })14);15const { weightedArbs } = require('fast-check');16const arb1 = fc.integer(1, 100);17const arb2 = fc.integer(101, 200);18const arb3 = fc.integer(201, 300);19const arb = weightedArbs([20  { weight: 1, arb: arb1 },21  { weight: 2, arb: arb2 },22  { weight: 3, arb: arb3 },23]);24fc.assert(25  fc.property(arb, (v) => {26    return v >= 1 && v <= 300;27  })28);29const { weightedArbs } = require('fast-check');30const arb1 = fc.integer(1, 100);31const arb2 = fc.integer(101, 200);32const arb3 = fc.integer(201, 300);33const arb = weightedArbs([34  { weight: 1, arb: arb1 },35  { weight: 2, arb: arb2 },36  { weight: 3, arb: arb3 },37]);38fc.assert(39  fc.property(arb, (v) => {40    return v >= 1 && v <= 300;41  })42);43const { weightedArbs } = require('fast-check');44const arb1 = fc.integer(1, 100);45const arb2 = fc.integer(101, 200);46const arb3 = fc.integer(201, 300);47const arb = weightedArbs([48  { weight: 1, arb: arb1 },49  {

Using AI Code Generation

1const { weightedArbs } = require('fast-check');2const { string } = require('fast-check');3const arb1 = string();4const arb2 = string();5const arb3 = string();6const arb = weightedArbs([7  { arb: arb1, weight: 1 },8  { arb: arb2, weight: 2 },9  { arb: arb3, weight: 3 },10]);

Using AI Code Generation

1const { weightedArbs } = require('fast-check');2const { constantFrom } = require('fast-check');3const { Arbitrary } = require('fast-check');4const { property } = require('fast-check');5const { oneof } = require('fast-check');6const { stringOf } = require('fast-check');7const { array } = require('fast-check');8const { tuple } = require('fast-check');9const { record } = require('fast-check');10const { option } = require('fast-check');11const { boolean } = require('fast-check');12const { integer } = require('fast-check');13const { double } = require('fast-check');14const { float } = require('fast-check');15const { date } = require('fast-check');16const { maxSafeInteger } = require('fast-check');17const { minSafeInteger } = require('fast-check');18const { maxSafeFloat } = require('fast-check');19const { minSafeFloat } = require('fast-check');20const { maxSafeDouble } = require('fast-check');21const { minSafeDouble } = require('fast-check');22const { maxSafeIntegerN } = require('fast-check');23const { minSafeIntegerN } = require('fast-check');24const { maxSafeFloatN } = require('fast-check');25const { minSafeFloatN } = require('fast-check');26const { maxSafeDoubleN } = require('fast-check');27const { minSafeDoubleN } = require('fast-check');28const { maxSafeIntegerLog } = require('fast-check');29const { minSafeIntegerLog } = require('fast-check');30const { maxSafeFloatLog } = require('fast-check');31const { minSafeFloatLog } = require('fast-check');32const { maxSafeDoubleLog } = require('fast-check');33const { minSafeDoubleLog } = require('fast-check');34const { maxSafeIntegerLogN } = require('fast-check');35const { minSafeIntegerLogN } = require('fast-check');36const { maxSafeFloatLogN } = require('fast-check');37const { minSafeFloatLogN } = require('fast-check');38const { maxSafeDoubleLogN } = require('fast-check');39const { minSafeDoubleLogN } = require('fast-check');40const { bigInt } = require('fast-check');41const { maxSafeBigInt } = require('fast-check');42const { minSafeBigInt } = require

Using AI Code Generation

1const { weightedArbs } = require('fast-check');2const arb = weightedArbs([3  { weight: 1, arbitrary: fc.string({ minLength: 1, maxLength: 10 }) },4  { weight: 1, arbitrary: fc.integer({ min: 0, max: 100 }) },5  { weight: 1, arbitrary: fc.double({ min: 0, max: 100 }) },6  { weight: 1, arbitrary: fc.boolean() },7  { weight: 1, arbitrary: fc.date() },8  { weight: 1, arbitrary: fc.json() },9  { weight: 1, arbitrary: fc.constantFrom('a', 'b', 'c') },10  { weight: 1, arbitrary: fc.constantFrom(1, 2, 3) },11  { weight: 1, arbitrary: fc.constantFrom(true, false) },12  { weight: 1, arbitrary: fc.constantFrom(new Date(), new Date(0)) },13  { weight: 1, arbitrary: fc.constantFrom({}, { a: 1 }, { b: 2 }) },14  { weight: 1, arbitrary: fc.constantFrom([], [1, 2], [3, 4]) },15  { weight: 1, arbitrary: fc.constantFrom(null, undefined, NaN) },16  { weight: 1, arbitrary: fc.constantFrom(Infinity, -Infinity) },17  { weight: 1, arbitrary: fc.constantFrom(new Set(), new Set([1, 2]), new Set([3, 4])) },18  { weight: 1, arbitrary: fc.constantFrom(new Map(), new Map([[1, 2]]), new Map([[3, 4]])) },19  { weight: 1, arbitrary: fc.constantFrom(new ArrayBuffer(1), new ArrayBuffer(2), new ArrayBuffer(3)) },20  { weight: 1, arbitrary: fc.constantFrom(new Uint8Array(1), new Uint8Array(2), new Uint8Array(3)) },21  { weight: 1, arbitrary: fc.constantFrom(new Int8Array

Using AI Code Generation

1const fc = require('fast-check');2const { weightedArbs } = require('fast-check-monorepo');3const { arb1, arb2 } = weightedArbs({4});5fc.assert(6    fc.property(arb1, (value) => {7        console.log(value);8    })9);10fc.assert(11    fc.property(arb2, (value) => {12        console.log(value);13    })14);15{ name: 'arb1', value: 'a' }16{ name: 'arb2', value: 'b' }17{ name: 'arb1', value: 'a' }18{ name: 'arb2', value: 'b' }19{ name: 'arb2', value: 'b' }20{ name: 'arb1', value: 'a' }21{ name: 'arb2', value: 'b' }22{ name: 'arb2', value: 'b' }23{ name: 'arb2', value: 'b' }24{ name: 'arb1', value: 'a' }25{ name: 'arb2', value: 'b' }26{ name: 'arb2', value: 'b' }27{ name: 'arb2', value: 'b' }28{ name: 'arb2', value: 'b' }

Using AI Code Generation

1const fc = require('fast-check');2const {weightedArbs} = require('fast-check-monorepo');3const arbA = fc.nat(5);4const arbB = fc.nat(5);5const arbC = fc.nat(5);6const arbD = fc.nat(5);7const arbE = fc.nat(5);8const arbF = fc.nat(5);9const arbG = fc.nat(5);10const arbH = fc.nat(5);11const arbI = fc.nat(5);12const arbJ = fc.nat(5);13const arbK = fc.nat(5);14const arbL = fc.nat(5);15const arbM = fc.nat(5);16const arbN = fc.nat(5);17const arbO = fc.nat(5);18const arbP = fc.nat(5);19const arbQ = fc.nat(5);20const arbR = fc.nat(5);21const arbS = fc.nat(5);22const arbT = fc.nat(5);23const arbU = fc.nat(5);24const arbV = fc.nat(5);25const arbW = fc.nat(5);26const arbX = fc.nat(5);27const arbY = fc.nat(5);28const arbZ = fc.nat(5);29const arbAA = fc.nat(5);30const arbAB = fc.nat(5);31const arbAC = fc.nat(5);32const arbAD = fc.nat(5);33const arbAE = fc.nat(5);34const arbAF = fc.nat(5);35const arbAG = fc.nat(5);36const arbAH = fc.nat(5);37const arbAI = fc.nat(5);38const arbAJ = fc.nat(5);39const arbAK = fc.nat(5);40const arbAL = fc.nat(5);41const arbAM = fc.nat(5);42const arbAN = fc.nat(5);43const arbAO = fc.nat(5);44const arbAP = fc.nat(5);45const arbAQ = fc.nat(5);46const arbAR = fc.nat(5);47const arbAS = fc.nat(5);48const arbAT = fc.nat(5);

Using AI Code Generation

1import {weightedArbs} from 'fast-check'2const {integer} = require('fast-check')3const {weightedArbs} = require('fast-check')4const {integer} = require('fast-check')5const weightedArray = weightedArbs(array, 100)6const randomArray = integer(1, 5).array()

Using AI Code Generation

1const fc = require('fast-check');2const arb = fc.weightedArbs([3  { weight: 1, arbitrary: fc.string() },4  { weight: 1, arbitrary: fc.integer() },5  { weight: 1, arbitrary: fc.boolean() },6]);7const run = () => {8  fc.assert(9    fc.property(arb, (x) => {10      console.log(x);11      return true;12    })13  );14};15run();

Using AI Code Generation

1const fc = require('fast-check');2const { weightedArbs } = require('fast-check');3    { weight: 1, arb: fc.string() },4    { weight: 1, arb: fc.integer() },5    { weight: 1, arb: fc.constantFrom('a', 'b', 'c') },6    { weight: 1, arb: fc.float() },7    { weight: 1, arb: fc.boolean() },8    { weight: 1, arb: fc.nat() },9    { weight: 1, arb: fc.double() },10    { weight: 1, arb: fc.hexa(

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.