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

How to use objectToPrototypeLessMapper method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

AnyArbitraryBuilder.ts

Source:AnyArbitraryBuilder.ts

1import { Arbitrary } from '../../../check/arbitrary/definition/Arbitrary';2import { stringify } from '../../../utils/stringify';3import { array } from '../../array';4import { oneof } from '../../oneof';5import { tuple } from '../../tuple';6import { bigInt } from '../../bigInt';7import { date } from '../../date';8import { float32Array } from '../../float32Array';9import { float64Array } from '../../float64Array';10import { int16Array } from '../../int16Array';11import { int32Array } from '../../int32Array';12import { int8Array } from '../../int8Array';13import { uint16Array } from '../../uint16Array';14import { uint32Array } from '../../uint32Array';15import { uint8Array } from '../../uint8Array';16import { uint8ClampedArray } from '../../uint8ClampedArray';17import { sparseArray } from '../../sparseArray';18import { keyValuePairsToObjectMapper, keyValuePairsToObjectUnmapper } from '../mappers/KeyValuePairsToObject';19import { QualifiedObjectConstraints } from '../helpers/QualifiedObjectConstraints';20import { arrayToMapMapper, arrayToMapUnmapper } from '../mappers/ArrayToMap';21import { arrayToSetMapper, arrayToSetUnmapper } from '../mappers/ArrayToSet';22import { objectToPrototypeLessMapper, objectToPrototypeLessUnmapper } from '../mappers/ObjectToPrototypeLess';23import { letrec } from '../../letrec';24import { SizeForArbitrary } from '../helpers/MaxLengthFromMinLength';25import { uniqueArray } from '../../uniqueArray';26import { createDepthIdentifier, DepthIdentifier } from '../helpers/DepthContext';27/** @internal */28function mapOf<T, U>(29  ka: Arbitrary<T>,30  va: Arbitrary<U>,31  maxKeys: number | undefined,32  size: SizeForArbitrary | undefined,33  depthIdentifier: DepthIdentifier34) {35  return uniqueArray(tuple(ka, va), {36    maxLength: maxKeys,37    size,38    comparator: 'SameValueZero',39    selector: (t) => t[0],40    depthIdentifier,41  }).map(arrayToMapMapper, arrayToMapUnmapper);42}43/** @internal */44function dictOf<U>(45  ka: Arbitrary<string>,46  va: Arbitrary<U>,47  maxKeys: number | undefined,48  size: SizeForArbitrary | undefined,49  depthIdentifier: DepthIdentifier50) {51  return uniqueArray(tuple(ka, va), {52    maxLength: maxKeys,53    size,54    selector: (t) => t[0],55    depthIdentifier,56  }).map(keyValuePairsToObjectMapper, keyValuePairsToObjectUnmapper);57}58/** @internal */59function setOf<U>(60  va: Arbitrary<U>,61  maxKeys: number | undefined,62  size: SizeForArbitrary | undefined,63  depthIdentifier: DepthIdentifier64) {65  return uniqueArray(va, { maxLength: maxKeys, size, comparator: 'SameValueZero', depthIdentifier }).map(66    arrayToSetMapper,67    arrayToSetUnmapper68  );69}70/** @internal */71// eslint-disable-next-line @typescript-eslint/ban-types72function prototypeLessOf(objectArb: Arbitrary<object>) {73  return objectArb.map(objectToPrototypeLessMapper, objectToPrototypeLessUnmapper);74}75/** @internal */76function typedArray(constraints: { maxLength: number | undefined; size: SizeForArbitrary }) {77  return oneof(78    int8Array(constraints),79    uint8Array(constraints),80    uint8ClampedArray(constraints),81    int16Array(constraints),82    uint16Array(constraints),83    int32Array(constraints),84    uint32Array(constraints),85    float32Array(constraints),86    float64Array(constraints)87  );88}89/** @internal */90export function anyArbitraryBuilder(constraints: QualifiedObjectConstraints): Arbitrary<unknown> {91  const arbitrariesForBase = constraints.values;92  const depthSize = constraints.depthSize;93  const depthIdentifier = createDepthIdentifier();94  const maxDepth = constraints.maxDepth;95  const maxKeys = constraints.maxKeys;96  const size = constraints.size;97  const baseArb = oneof(98    ...arbitrariesForBase,99    ...(constraints.withBigInt ? [bigInt()] : []),100    ...(constraints.withDate ? [date()] : [])101  );102  return letrec((tie) => ({103    anything: oneof(104      { maxDepth, depthSize, depthIdentifier },105      baseArb, // Final recursion case106      tie('array'),107      tie('object'),108      ...(constraints.withMap ? [tie('map')] : []),109      ...(constraints.withSet ? [tie('set')] : []),110      ...(constraints.withObjectString ? [tie('anything').map((o) => stringify(o))] : []),111      // eslint-disable-next-line @typescript-eslint/ban-types112      ...(constraints.withNullPrototype ? [prototypeLessOf(tie('object') as Arbitrary<object>)] : []),113      ...(constraints.withTypedArray ? [typedArray({ maxLength: maxKeys, size })] : []),114      ...(constraints.withSparseArray115        ? [sparseArray(tie('anything'), { maxNumElements: maxKeys, size, depthIdentifier })]116        : [])117    ),118    // String keys119    keys: constraints.withObjectString120      ? oneof(121          { arbitrary: constraints.key, weight: 10 },122          { arbitrary: tie('anything').map((o) => stringify(o)), weight: 1 }123        )124      : constraints.key,125    // anything[]126    array: array(tie('anything'), { maxLength: maxKeys, size, depthIdentifier }),127    // Set<anything>128    set: setOf(tie('anything'), maxKeys, size, depthIdentifier),129    // Map<key, anything> | Map<anything, anything>130    map: oneof(131      mapOf(tie('keys') as Arbitrary<string>, tie('anything'), maxKeys, size, depthIdentifier),132      mapOf(tie('anything'), tie('anything'), maxKeys, size, depthIdentifier)133    ),134    // {[key:string]: anything}135    object: dictOf(tie('keys') as Arbitrary<string>, tie('anything'), maxKeys, size, depthIdentifier),136  })).anything;...

ObjectToPrototypeLess.spec.ts

Source:ObjectToPrototypeLess.spec.ts

...7    // Arrange8    const source = {};9    expect(source).toBeInstanceOf(Object);10    // Act11    const out = objectToPrototypeLessMapper(source);12    // Assert13    expect(out).toEqual(Object.create(null));14    expect(out).not.toBeInstanceOf(Object);15  });16  it('should be able to map non-empty instance with Object prototype to non-empty without any prototype', () => {17    // Arrange18    const source = { a: 1, b: 2 };19    expect(source).toBeInstanceOf(Object);20    // Act21    const out = objectToPrototypeLessMapper(source);22    // Assert23    expect(out).toEqual(Object.assign(Object.create(null), { a: 1, b: 2 }));24    expect(out).not.toBeInstanceOf(Object);25  });26});27describe('objectToPrototypeLessUnmapper', () => {28  it('should be able to unmap empty instance without any prototype', () => {29    // Arrange30    const source = Object.create(null);31    expect(source).not.toBeInstanceOf(Object);32    // Act33    const out = objectToPrototypeLessUnmapper(source);34    // Assert35    expect(out).toEqual({});...

ObjectToPrototypeLess.ts

Source:ObjectToPrototypeLess.ts

...3 * @internal4 */5// eslint-disable-next-line @typescript-eslint/no-unused-vars6// eslint-disable-next-line @typescript-eslint/ban-types7export function objectToPrototypeLessMapper(o: object): object {8  return Object.assign(Object.create(null), o);9}10/** @internal */11// eslint-disable-next-line @typescript-eslint/no-unused-vars12// eslint-disable-next-line @typescript-eslint/ban-types13export function objectToPrototypeLessUnmapper(value: unknown): object {14  if (typeof value !== 'object' || value === null) {15    throw new Error('Incompatible instance received: should be a non-null object');16  }17  if ('__proto__' in value) {18    throw new Error('Incompatible instance received: should not have any __proto__');19  }20  return Object.assign({}, value);21}

Using AI Code Generation

1const { objectToPrototypeLessMapper } = require('fast-check-monorepo');2const obj = { a: 1, b: 2, c: 3 };3const obj2 = objectToPrototypeLessMapper(obj);4console.log(obj2);5const { objectToPrototypeLessMapper } = require('fast-check-monorepo');6const obj = { a: 1, b: 2, c: 3 };7const obj2 = objectToPrototypeLessMapper(obj);8console.log(obj2);9const { objectToPrototypeLessMapper } = require('fast-check-monorepo');10const obj = { a: 1, b: 2, c: 3 };11const obj2 = objectToPrototypeLessMapper(obj);12console.log(obj2);13const { objectToPrototypeLessMapper } = require('fast-check-monorepo');14const obj = { a: 1, b: 2, c: 3 };15const obj2 = objectToPrototypeLessMapper(obj);16console.log(obj2);17const { objectToPrototypeLessMapper } = require('fast-check-monorepo');18const obj = { a: 1, b: 2, c: 3 };19const obj2 = objectToPrototypeLessMapper(obj);20console.log(obj2);21const { objectToPrototypeLessMapper } = require('fast-check-monorepo');22const obj = { a:

Using AI Code Generation

1const { objectToPrototypeLessMapper } = require('fast-check');2const { objectToPrototypeLessMapper } = require('fast-check-monorepo');3const obj = {4};5const obj2 = objectToPrototypeLessMapper(obj);6console.log(obj2);7{ a: 1, b: 2, c: 3 }8const { objectToPrototypeLessMapper } = require('fast-check-monorepo');9const obj = {10};11const obj2 = objectToPrototypeLessMapper(obj);12console.log(obj2);13{ a: 1, b: 2, c: 3 }

Using AI Code Generation

1const { objectToPrototypeLessMapper } = require('@fast-check/arbitrary/ObjectToPrototypeLessMapper');2const { object } = require('@fast-check/arbitrary/ObjectArbitrary');3const { string } = require('@fast-check/arbitrary/StringArbitrary');4const { integer } = require('@fast-check/arbitrary/IntegerArbitrary');5const { array } = require('@fast-check/arbitrary/ArrayArbitrary');6const { record } = require('@fast-check/arbitrary/RecordArbitrary');7const { oneof } = require('@fast-check/arbitrary/OneOfArbitrary');8const { tuple } = require('@fast-check/arbitrary/TupleArbitrary');9const { cloneMethod } = require('@fast-check/arbitrary/CloneMethod');10const { clone } = require('@fast-check/arbitrary/Clone');11const { cloneViaJson } = require('@fast-check/arbitrary/CloneViaJson');12const { cloneViaConstructor } = require('@fast-check/arbitrary/CloneViaConstructor');13const { cloneViaProto } = require('@fast-check/arbitrary/CloneViaProto');14const { cloneViaAssign } = require('@fast-check/arbitrary/CloneViaAssign');15const { cloneViaAssignSymbols } = require('@fast-check/arbitrary/CloneViaAssignSymbols');16const { cloneViaAssignSymbolsAndProto } = require('@fast-check/arbitrary/CloneViaAssignSymbolsAndProto');17const { cloneViaAssignSymbolsAndProtoAndConstructor } = require('@fast-check/arbitrary/CloneViaAssignSymbolsAndProtoAndConstructor');18const { cloneViaAssignSymbolsAndProtoAndConstructorAndJson } = require('@fast-check/arbitrary/CloneViaAssignSymbolsAndProtoAndConstructorAndJson');19const { cloneViaAssignSymbolsAndProtoAndConstructorAndJsonAndAssign } = require('@fast-check/arbitrary/CloneViaAssignSymbolsAndProtoAndConstructorAndJsonAndAssign');20const { cloneViaAssignSymbolsAndProtoAndConstructorAndJsonAndAssignAndProto } = require('@fast-check/arbitrary/CloneViaAssignSymbolsAndProtoAndConstructorAndJsonAndAssignAndProto');21const { cloneViaAssignSymbolsAndProtoAndConstructorAndJsonAndAssignAndProtoAndConstructor } = require('@fast-check/arbitrary/CloneViaAssignSymbolsAndProtoAndConstructorAndJsonAndAssignAndProtoAndConstructor');22const { cloneViaAssignSymbolsAndProtoAndConstructorAndJsonAndAssignAndProtoAndConstructorAndJson } = require('@fast-check/arbitrary/CloneViaAssignSymbolsAndProtoAndConstructorAndJson

Using AI Code Generation

1const { objectToPrototypeLessMapper } = require('fast-check');2const { prototypeLessMapper } = require('fast-check/lib/src/runner/mappers/PrototypeLessMapper.js');3const obj = {4};5console.log('objectToPrototypeLessMapper', objectToPrototypeLessMapper(obj));6console.log('prototypeLessMapper', prototypeLessMapper(obj));7const { objectToPrototypeLessMapper } = require('fast-check');8const { prototypeLessMapper } = require('fast-check/lib/src/runner/mappers/PrototypeLessMapper.js');9const obj = {10};11console.log('objectToPrototypeLessMapper', objectToPrototypeLessMapper(obj));12console.log('prototypeLessMapper', prototypeLessMapper(obj));13const { objectToPrototypeLessMapper } = require('fast-check');14const { prototypeLessMapper } = require('fast-check/lib/src/runner/mappers/PrototypeLessMapper.js');15const obj = {16};17console.log('objectToPrototypeLessMapper', object

Using AI Code Generation

1const objectToPrototypeLessMapper = require("fast-check-monorepo").objectToPrototypeLessMapper;2const functionToTest = require("./functionToTest");3const schema = {a: "string", b: "number", c: "object"};4const objectToTest = objectToPrototypeLessMapper(schema);5functionToTest(objectToTest);6functionToTest({a: "string", b: "number", c: "object"});7functionToTest(Object.create({a: "string", b: "number", c: "object"}));8functionToTest(Object.create({a: "string", b: "number", c: "object", d: "boolean"}));9const objectWithNonEnumerableProperty = Object.create({a: "string", b: "number", c: "object"});10Object.defineProperty(objectWithNonEnumerableProperty, "d", {value: "boolean", enumerable: false});11functionToTest(objectWithNonEnumerableProperty);12const objectWithNonEnumerableProperty = Object.create({a: "string", b: "number", c: "object"});13Object.defineProperty(objectWithNonEnumerableProperty, "d", {value: "boolean", enumerable: false});14functionToTest(objectWithNonEnumerableProperty);15const objectWithNonEnumerableProperty = Object.create({a: "string", b: "number", c: "object"});16Object.defineProperty(objectWithNonEnumerableProperty, "d",

Using AI Code Generation

1const { objectToPrototypeLessMapper } = require('fast-check-monorepo');2function testMapperFunction() {3  const obj = {4    b: {5    }6  };7  const obj2 = {8    b: {9    }10  };11  const mapper = (key, value) => {12    if (key === 'd') {13      return undefined;14    }15    return value;16  };17  const mapped = objectToPrototypeLessMapper(obj, mapper);18  if (JSON.stringify(mapped) === JSON.stringify(obj2)) {19    return true;20  }21  return false;22}23testMapperFunction();24if (testMapperFunction()) {25  console.log('test passed');26}27else {28  console.log('test failed');29}30const { objectToPrototypeLessMapper } = require('fast-check-monorepo');31function testMapperFunction() {32  const obj = {33    b: {

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.