How to use sourceArb method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

StreamArbitrary.spec.ts

Source:StreamArbitrary.spec.ts Github

copy

Full Screen

1import * as fc from 'fast-check';2import { StreamArbitrary } from '../../../../src/arbitrary/_internals/StreamArbitrary';3import { Value } from '../../../../src/check/arbitrary/definition/Value';4import { cloneIfNeeded, hasCloneMethod } from '../../../../src/check/symbols';5import { Stream } from '../../../../src/stream/Stream';6import {7 assertProduceCorrectValues,8 assertProduceSameValueGivenSameSeed,9} from '../__test-helpers__/ArbitraryAssertions';10import { FakeIntegerArbitrary, fakeArbitrary } from '../__test-helpers__/ArbitraryHelpers';11import { fakeRandom } from '../__test-helpers__/RandomHelpers';12import * as StringifyMock from '../../../../src/utils/stringify';13function beforeEachHook() {14 jest.resetModules();15 jest.restoreAllMocks();16 fc.configureGlobal({ beforeEach: beforeEachHook });17}18beforeEach(beforeEachHook);19describe('StreamArbitrary', () => {20 describe('generate', () => {21 it('should produce a cloneable instance of Stream', () => {22 // Arrange23 const biasFactor = 48;24 const { instance: sourceArb } = fakeArbitrary();25 const { instance: mrng } = fakeRandom();26 // Act27 const arb = new StreamArbitrary(sourceArb);28 const out = arb.generate(mrng, biasFactor);29 // Assert30 expect(out.value).toBeInstanceOf(Stream);31 expect(out.hasToBeCloned).toBe(true);32 expect(hasCloneMethod(out.value)).toBe(true);33 });34 it('should not call generate before we pull from the Stream but decide bias', () => {35 // Arrange36 const biasFactor = 48;37 const { instance: sourceArb, generate } = fakeArbitrary();38 const { instance: mrng, nextInt } = fakeRandom();39 // Act40 const arb = new StreamArbitrary(sourceArb);41 arb.generate(mrng, biasFactor).value;42 // Assert43 expect(nextInt).toHaveBeenCalledTimes(1);44 expect(nextInt).toHaveBeenCalledWith(1, biasFactor);45 expect(generate).not.toHaveBeenCalled();46 });47 it('should not check bias again for cloned instances', () => {48 // Arrange49 const biasFactor = 48;50 const { instance: sourceArb } = fakeArbitrary();51 const { instance: mrng, nextInt } = fakeRandom();52 // Act53 const arb = new StreamArbitrary(sourceArb);54 const out = arb.generate(mrng, biasFactor);55 const s1 = out.value;56 const s2 = out.value;57 // Assert58 expect(nextInt).toHaveBeenCalledTimes(1);59 expect(nextInt).toHaveBeenCalledWith(1, biasFactor);60 expect(s2).not.toBe(s1);61 });62 it('should call generate with cloned instance of Random as we pull from the Stream', () => {63 // Arrange64 const numValuesToPull = 5;65 const biasFactor = 48;66 let index = 0;67 const expectedValues = [...Array(numValuesToPull)].map(() => Symbol());68 const { instance: sourceArb, generate } = fakeArbitrary();69 generate.mockImplementation(() => new Value(expectedValues[index++], undefined));70 const { instance: mrng, clone, nextInt } = fakeRandom();71 nextInt.mockReturnValueOnce(1); // for bias72 const { instance: mrngCloned } = fakeRandom();73 clone.mockReturnValueOnce(mrngCloned);74 // Act75 const arb = new StreamArbitrary(sourceArb);76 const stream = arb.generate(mrng, biasFactor).value;77 const values = [...stream.take(numValuesToPull)];78 // Assert79 expect(generate).toHaveBeenCalledTimes(numValuesToPull);80 for (const call of generate.mock.calls) {81 expect(call).toEqual([mrngCloned, biasFactor]);82 }83 expect(values).toEqual(expectedValues);84 });85 it('should call generate with cloned instance of Random specific for each Stream', () => {86 // Arrange87 const numValuesToPullS1 = 5;88 const numValuesToPullS2 = 3;89 const biasFactor = 48;90 const { instance: sourceArb, generate } = fakeArbitrary();91 generate.mockImplementation(() => new Value(Symbol(), undefined));92 const { instance: mrng, clone, nextInt } = fakeRandom();93 nextInt.mockReturnValueOnce(1); // for bias94 const { instance: mrngClonedA } = fakeRandom();95 const { instance: mrngClonedB } = fakeRandom();96 clone.mockReturnValueOnce(mrngClonedA).mockReturnValueOnce(mrngClonedB);97 // Act98 const arb = new StreamArbitrary(sourceArb);99 const out = arb.generate(mrng, biasFactor);100 const s1 = out.value;101 const c1 = s1[Symbol.iterator]();102 for (let i = 0; i !== numValuesToPullS1; ++i) {103 const next = c1.next();104 expect(next.done).toBe(false);105 }106 const s2 = out.value;107 const c2 = s2[Symbol.iterator]();108 for (let i = 0; i !== numValuesToPullS2; ++i) {109 const next = c2.next();110 expect(next.done).toBe(false);111 }112 c1.next();113 // Assert114 expect(generate).toHaveBeenCalledTimes(numValuesToPullS1 + numValuesToPullS2 + 1);115 const calls = generate.mock.calls;116 for (let i = 0; i !== numValuesToPullS1; ++i) {117 const call = calls[i];118 expect(call).toEqual([mrngClonedA, biasFactor]);119 }120 for (let i = 0; i !== numValuesToPullS2; ++i) {121 const call = calls[numValuesToPullS1 + i];122 expect(call).toEqual([mrngClonedB, biasFactor]);123 }124 expect(calls[numValuesToPullS1 + numValuesToPullS2]).toEqual([mrngClonedA, biasFactor]);125 });126 it('should only print pulled values on print', () =>127 fc.assert(128 fc.property(fc.array(fc.integer()), (expectedValues) => {129 // Arrange130 const biasFactor = 48;131 let index = 0;132 const { instance: sourceArb, generate } = fakeArbitrary<number>();133 generate.mockImplementation(() => new Value(expectedValues[index++], undefined));134 const { instance: mrng, clone, nextInt } = fakeRandom();135 nextInt.mockReturnValueOnce(2); // for no bias136 const { instance: mrngCloned } = fakeRandom();137 clone.mockReturnValueOnce(mrngCloned);138 const fakeStringify = (v: unknown) => '<' + String(v) + '>';139 const stringify = jest.spyOn(StringifyMock, 'stringify');140 stringify.mockImplementation(fakeStringify);141 // Act142 const arb = new StreamArbitrary(sourceArb);143 const stream = arb.generate(mrng, biasFactor).value;144 const values = [...stream.take(expectedValues.length)];145 // Assert146 expect(values).toEqual(expectedValues);147 expect(String(stream)).toEqual(`Stream(${expectedValues.map(fakeStringify).join(',')}…)`);148 expect(stringify).toHaveBeenCalledTimes(expectedValues.length);149 expect(generate).toHaveBeenCalledTimes(expectedValues.length);150 if (expectedValues.length > 0) {151 expect(generate).toHaveBeenCalledWith(mrngCloned, undefined);152 }153 })154 ));155 it('should create independant Stream even in terms of toString', () => {156 // Arrange157 const biasFactor = 48;158 let index = 0;159 const { instance: sourceArb, generate } = fakeArbitrary<number>();160 generate.mockImplementation(() => new Value(index++, undefined));161 const { instance: mrng, clone, nextInt } = fakeRandom();162 nextInt.mockReturnValueOnce(2); // for no bias163 const { instance: mrngCloned } = fakeRandom();164 clone.mockReturnValueOnce(mrngCloned);165 const stringify = jest.spyOn(StringifyMock, 'stringify');166 stringify.mockImplementation((v) => '<' + String(v) + '>');167 // Act168 const arb = new StreamArbitrary(sourceArb);169 const out = arb.generate(mrng, biasFactor);170 const stream1 = out.value;171 const stream2 = out.value;172 const values1 = [...stream1.take(2)];173 const values2 = [...stream2.take(3)];174 const values1Bis = [...stream1.take(2)];175 // Assert176 expect(values1).toEqual([0, 1]);177 expect(values2).toEqual([2, 3, 4]);178 expect(values1Bis).toEqual([5, 6]);179 expect(String(stream1)).toEqual(`Stream(<0>,<1>,<5>,<6>…)`);180 expect(String(stream2)).toEqual(`Stream(<2>,<3>,<4>…)`);181 expect(stringify).toHaveBeenCalledTimes(7);182 expect(generate).toHaveBeenCalledTimes(7);183 });184 });185 describe('canShrinkWithoutContext', () => {186 function* infiniteG() {187 yield 1;188 }189 it.each`190 data | description191 ${Stream.nil()} | ${'empty stream'}192 ${Stream.of(1, 5, 6, 74, 4)} | ${'finite stream'}193 ${new Stream(infiniteG())} | ${'infinite stream'}194 `('should return false for any Stream whatever the size ($description)', ({ data }) => {195 // Arrange196 const { instance: sourceArb, canShrinkWithoutContext } = fakeArbitrary();197 // Act198 const arb = new StreamArbitrary(sourceArb);199 const out = arb.canShrinkWithoutContext(data);200 // Assert201 expect(out).toBe(false);202 expect(canShrinkWithoutContext).not.toHaveBeenCalled();203 });204 it('should return false even for its own values', () => {205 // Arrange206 const { instance: sourceArb, canShrinkWithoutContext } = fakeArbitrary();207 const { instance: mrng } = fakeRandom();208 // Act209 const arb = new StreamArbitrary(sourceArb);210 const g = arb.generate(mrng, undefined);211 const out = arb.canShrinkWithoutContext(g.value);212 // Assert213 expect(out).toBe(false);214 expect(canShrinkWithoutContext).not.toHaveBeenCalled();215 });216 });217 describe('shrink', () => {218 it('should always shrink to nil', () => {219 // Arrange220 const { instance: sourceArb, generate, shrink } = fakeArbitrary<number>();221 generate.mockReturnValue(new Value(0, undefined));222 const { instance: mrng } = fakeRandom();223 // Act224 const arb = new StreamArbitrary(sourceArb);225 const { value, context } = arb.generate(mrng, undefined);226 const pullValues = [...value.take(50)];227 const shrinks = [...arb.shrink(value, context)];228 // Assert229 expect(pullValues).toBeDefined();230 expect(shrinks).toHaveLength(0);231 expect(shrink).not.toHaveBeenCalled();232 });233 });234});235describe('StreamArbitrary (integration)', () => {236 const sourceArb = new FakeIntegerArbitrary();237 const isEqual = (s1: Stream<number>, s2: Stream<number>) => {238 expect([...cloneIfNeeded(s1).take(10)]).toEqual([...cloneIfNeeded(s2).take(10)]);239 };240 const isCorrect = (value: Stream<number>) =>241 value instanceof Stream && [...value.take(10)].every((v) => sourceArb.canShrinkWithoutContext(v));242 const streamBuilder = () => new StreamArbitrary(sourceArb);243 it('should produce the same values given the same seed', () => {244 assertProduceSameValueGivenSameSeed(streamBuilder, { isEqual });245 });246 it('should only produce correct values', () => {247 assertProduceCorrectValues(streamBuilder, isCorrect);248 });...

Full Screen

Full Screen

CloneArbitrary.spec.ts

Source:CloneArbitrary.spec.ts Github

copy

Full Screen

1import fc from 'fast-check';2import { CloneArbitrary } from '../../../../src/arbitrary/_internals/CloneArbitrary';3import { Arbitrary } from '../../../../src/check/arbitrary/definition/Arbitrary';4import { Value } from '../../../../src/check/arbitrary/definition/Value';5import { cloneMethod, hasCloneMethod } from '../../../../src/check/symbols';6import { Random } from '../../../../src/random/generator/Random';7import { Stream } from '../../../../src/stream/Stream';8import {9 assertProduceValuesShrinkableWithoutContext,10 assertProduceCorrectValues,11 assertShrinkProducesSameValueWithoutInitialContext,12 assertShrinkProducesStrictlySmallerValue,13 assertProduceSameValueGivenSameSeed,14} from '../__test-helpers__/ArbitraryAssertions';15import { FakeIntegerArbitrary, fakeArbitrary } from '../__test-helpers__/ArbitraryHelpers';16import { fakeRandom } from '../__test-helpers__/RandomHelpers';17import { buildShrinkTree, renderTree, walkTree } from '../__test-helpers__/ShrinkTree';18describe('CloneArbitrary', () => {19 describe('generate', () => {20 it('should call generate numValues times on the passed arbitrary', () => {21 // Arrange22 const numValues = 3;23 const biasFactor = 48;24 const producedValue = Symbol();25 const { instance: mrng, clone } = fakeRandom();26 const { instance: mrngClone1 } = fakeRandom();27 const { instance: mrngClone2 } = fakeRandom();28 clone.mockReturnValueOnce(mrngClone1).mockReturnValueOnce(mrngClone2);29 const { instance: sourceArb, generate } = fakeArbitrary<symbol>();30 generate.mockReturnValue(new Value(producedValue, undefined));31 // Act32 const arb = new CloneArbitrary(sourceArb, numValues);33 const out = arb.generate(mrng, biasFactor);34 // Assert35 expect(out.value).toEqual([producedValue, producedValue, producedValue]);36 expect(generate).toHaveBeenCalledTimes(3);37 expect(generate).toHaveBeenCalledWith(mrngClone1, biasFactor);38 expect(generate).toHaveBeenCalledWith(mrngClone2, biasFactor);39 expect(generate).toHaveBeenLastCalledWith(mrng, biasFactor);40 });41 it.each`42 type | cloneable43 ${'non-cloneable'} | ${false}44 ${'cloneable'} | ${true}45 `('should produce a $type tuple when sub-value is $type', ({ cloneable }) => {46 // Arrange47 const numValues = 1;48 const { instance: mrng } = fakeRandom();49 const { instance: sourceArb, generate } = fakeArbitrary<unknown>();50 if (cloneable) generate.mockReturnValue(new Value({ [cloneMethod]: jest.fn() }, undefined));51 else generate.mockReturnValue(new Value({ m: jest.fn() }, undefined));52 // Act53 const arb = new CloneArbitrary(sourceArb, numValues);54 const out = arb.generate(mrng, numValues);55 // Assert56 expect(out.hasToBeCloned).toBe(cloneable);57 expect(hasCloneMethod(out.value)).toBe(cloneable);58 });59 });60 describe('canShrinkWithoutContext', () => {61 it('should return false if passed value does not have the right length', () =>62 fc.assert(63 fc.property(fc.nat({ max: 1000 }), fc.nat({ max: 1000 }), (numValues, numRequestedValues) => {64 // Arrange65 fc.pre(numValues !== numRequestedValues);66 const { instance: sourceArb, canShrinkWithoutContext } = fakeArbitrary();67 // Act68 const arb = new CloneArbitrary(sourceArb, numValues);69 const out = arb.canShrinkWithoutContext([...Array(numRequestedValues)]);70 // Assert71 expect(out).toBe(false);72 expect(canShrinkWithoutContext).not.toHaveBeenCalled();73 })74 ));75 it('should return false if values are not equal regarding Object.is', () => {76 // Arrange77 const { instance: sourceArb, canShrinkWithoutContext } = fakeArbitrary();78 // Act79 const arb = new CloneArbitrary(sourceArb, 2);80 const out = arb.canShrinkWithoutContext([{}, {}]);81 // Assert82 expect(out).toBe(false);83 expect(canShrinkWithoutContext).not.toHaveBeenCalled();84 });85 it.each`86 canShrinkWithoutContextValue87 ${true}88 ${false}89 `(90 'should ask sub-arbitrary whenever length is correct and children are equal regarding Object.is',91 ({ canShrinkWithoutContextValue }) => {92 // Arrange93 const value = {};94 const { instance: sourceArb, canShrinkWithoutContext } = fakeArbitrary();95 canShrinkWithoutContext.mockReturnValue(canShrinkWithoutContextValue);96 // Act97 const arb = new CloneArbitrary(sourceArb, 2);98 const out = arb.canShrinkWithoutContext([value, value]);99 // Assert100 expect(out).toBe(canShrinkWithoutContextValue);101 expect(canShrinkWithoutContext).toHaveBeenCalledTimes(1);102 expect(canShrinkWithoutContext).toHaveBeenCalledWith(value);103 }104 );105 });106 describe('shrink', () => {107 it('should shrink numValues times the value and zip the outputs together', () => {108 // Arrange109 const value = Symbol();110 const s1 = Symbol();111 const s2 = Symbol();112 const numValues = 3;113 const { instance: sourceArb, shrink } = fakeArbitrary<symbol>();114 shrink115 .mockReturnValueOnce(Stream.of<Value<symbol>>(new Value(s1, undefined), new Value(s2, undefined)))116 .mockReturnValueOnce(Stream.of<Value<symbol>>(new Value(s1, undefined), new Value(s2, undefined)))117 .mockReturnValueOnce(Stream.of<Value<symbol>>(new Value(s1, undefined), new Value(s2, undefined)));118 // Act119 const arb = new CloneArbitrary(sourceArb, numValues);120 const shrinks = [...arb.shrink([value, value, value])];121 // Assert122 expect(shrinks.map((v) => v.value)).toEqual([123 [s1, s1, s1],124 [s2, s2, s2],125 ]);126 expect(shrink).toHaveBeenCalledTimes(3);127 expect(shrink).toHaveBeenCalledWith(value, undefined);128 });129 });130});131describe('CloneArbitrary (integration)', () => {132 type Extra = number;133 const extraParameters: fc.Arbitrary<Extra> = fc.nat({ max: 100 });134 const isCorrect = (value: number[], extra: Extra) =>135 Array.isArray(value) && value.length === extra && new Set(value).size <= 1;136 // Should never be called for extra = 0137 const isStrictlySmaller = (t1: number[], t2: number[]) => t1[0] < t2[0];138 const cloneBuilder = (extra: Extra) => new CloneArbitrary(new FakeIntegerArbitrary(), extra);139 it('should produce the same values given the same seed', () => {140 assertProduceSameValueGivenSameSeed(cloneBuilder, { extraParameters });141 });142 it('should only produce correct values', () => {143 assertProduceCorrectValues(cloneBuilder, isCorrect, { extraParameters });144 });145 it('should produce values seen as shrinkable without any context', () => {146 // Only when equal regarding Object.is147 assertProduceValuesShrinkableWithoutContext(cloneBuilder, { extraParameters });148 });149 it('should be able to shrink to the same values without initial context (if underlyings do)', () => {150 assertShrinkProducesSameValueWithoutInitialContext(cloneBuilder, { extraParameters });151 });152 it('should preserve strictly smaller ordering in shrink (if underlyings do)', () => {153 assertShrinkProducesStrictlySmallerValue(cloneBuilder, isStrictlySmaller, { extraParameters });154 });155 it('should produce the right shrinking tree', () => {156 // Arrange157 const arb = new CloneArbitrary(new FirstArbitrary(), 5);158 const { instance: mrng } = fakeRandom();159 // Act160 const g = arb.generate(mrng, undefined);161 const renderedTree = renderTree(buildShrinkTree(arb, g)).join('\n');162 // Assert163 expect(renderedTree).toMatchInlineSnapshot(`164 "[4,4,4,4,4]165 ├> [2,2,2,2,2]166 | └> [0,0,0,0,0]167 └> [3,3,3,3,3]168 ├> [0,0,0,0,0]169 └> [1,1,1,1,1]"170 `);171 });172 it('should not re-use twice the same instance of cloneable', () => {173 // Arrange174 const alreadySeenCloneable = new Set<unknown>();175 const arb = new CloneArbitrary(new CloneableArbitrary(), 5);176 const { instance: mrng } = fakeRandom();177 // Act178 const g = arb.generate(mrng, undefined);179 const treeA = buildShrinkTree(arb, g);180 const treeB = buildShrinkTree(arb, g);181 // Assert182 walkTree(treeA, ([_first, cloneable, _second]) => {183 expect(alreadySeenCloneable.has(cloneable)).toBe(false);184 alreadySeenCloneable.add(cloneable);185 });186 walkTree(treeB, ([_first, cloneable, _second]) => {187 expect(alreadySeenCloneable.has(cloneable)).toBe(false);188 alreadySeenCloneable.add(cloneable);189 });190 });191});192// Helpers193const expectedFirst = 4;194class FirstArbitrary extends Arbitrary<number> {195 generate(_mrng: Random): Value<number> {196 return new Value(expectedFirst, { step: 2 });197 }198 canShrinkWithoutContext(_value: unknown): _value is number {199 throw new Error('No call expected in that scenario');200 }201 shrink(value: number, context?: unknown): Stream<Value<number>> {202 if (typeof context !== 'object' || context === null || !('step' in context)) {203 throw new Error('Invalid context for FirstArbitrary');204 }205 if (value <= 0) {206 return Stream.nil();207 }208 const currentStep = (context as { step: number }).step;209 const nextStep = currentStep + 1;210 return Stream.of(211 ...(value - currentStep >= 0 ? [new Value(value - currentStep, { step: nextStep })] : []),212 ...(value - currentStep + 1 >= 0 ? [new Value(value - currentStep + 1, { step: nextStep })] : [])213 );214 }215}216class CloneableArbitrary extends Arbitrary<number[]> {217 private instance() {218 return Object.defineProperty([], cloneMethod, { value: () => this.instance() });219 }220 generate(_mrng: Random): Value<number[]> {221 return new Value(this.instance(), { shrunkOnce: false });222 }223 canShrinkWithoutContext(_value: unknown): _value is number[] {224 throw new Error('No call expected in that scenario');225 }226 shrink(value: number[], context?: unknown): Stream<Value<number[]>> {227 if (typeof context !== 'object' || context === null || !('shrunkOnce' in context)) {228 throw new Error('Invalid context for CloneableArbitrary');229 }230 const safeContext = context as { shrunkOnce: boolean };231 if (safeContext.shrunkOnce) {232 return Stream.nil();233 }234 return Stream.of(new Value(this.instance(), { shrunkOnce: true }));235 }...

Full Screen

Full Screen

AdapterArbitrary.ts

Source:AdapterArbitrary.ts Github

copy

Full Screen

1import { Arbitrary } from '../../check/arbitrary/definition/Arbitrary';2import { Value } from '../../check/arbitrary/definition/Value';3import { Random } from '../../random/generator/Random';4import { Stream } from '../../stream/Stream';5/** @internal */6export type AdapterOutput<T> = { adapted: boolean; value: T };7/** @internal */8const AdaptedValue = Symbol('adapted-value');9/** @internal */10function toAdapterValue<T>(rawValue: Value<T>, adapter: (value: T) => AdapterOutput<T>): Value<T> {11 const adapted = adapter(rawValue.value_);12 if (!adapted.adapted) {13 return rawValue; // No need to adapt it14 }15 return new Value(adapted.value, AdaptedValue);16}17/**18 * @internal19 * Adapt an existing Arbitrary by truncating its generating values20 * if they don't fit the requirements21 */22class AdapterArbitrary<T> extends Arbitrary<T> {23 private readonly adaptValue: (rawValue: Value<T>) => Value<T>;24 constructor(private readonly sourceArb: Arbitrary<T>, private readonly adapter: (value: T) => AdapterOutput<T>) {25 super();26 this.adaptValue = (rawValue) => toAdapterValue(rawValue, adapter);27 }28 generate(mrng: Random, biasFactor: number | undefined): Value<T> {29 const rawValue = this.sourceArb.generate(mrng, biasFactor);30 return this.adaptValue(rawValue);31 }32 canShrinkWithoutContext(value: unknown): value is T {33 return this.sourceArb.canShrinkWithoutContext(value) && !this.adapter(value).adapted;34 }35 shrink(value: T, context: unknown): Stream<Value<T>> {36 if (context === AdaptedValue) {37 if (!this.sourceArb.canShrinkWithoutContext(value)) {38 return Stream.nil();39 }40 return this.sourceArb.shrink(value, undefined).map(this.adaptValue);41 }42 return this.sourceArb.shrink(value, context).map(this.adaptValue);43 }44}45/** @internal */46export function adapter<T>(sourceArb: Arbitrary<T>, adapter: (value: T) => AdapterOutput<T>): Arbitrary<T> {47 return new AdapterArbitrary(sourceArb, adapter);...

Full Screen

Full Screen

Using AI Code Generation

copy

Full Screen

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

Full Screen

Full Screen

Using AI Code Generation

copy

Full Screen

1var sourceArb = require('fast-check-monorepo').sourceArb2var fc = require('fast-check')3var test = require('tape')4test('test', function (t) {5 t.plan(1)6 fc.assert(fc.property(sourceArb, function (source) {7 t.pass()8 }))9})10{11 "scripts": {12 },13 "dependencies": {14 }15}16node -e "console.log(require('fast-check-monorepo').sourceArb)"

Full Screen

Full Screen

Using AI Code Generation

copy

Full Screen

1const { sourceArb } = require('fast-check-monorepo');2const fc = require('fast-check');3const path = require('path');4const test = async () => {5 const arb = sourceArb(path.join(__dirname, 'src'));6 const result = await fc.assert(fc.property(arb, (str) => {7 console.log(str);8 return true;9 }));10 console.log(result);11};12test();

Full Screen

Full Screen

Using AI Code Generation

copy

Full Screen

1const fc = require('fast-check');2const { sourceArb } = require('fast-check-monorepo');3const { sourceArb: sourceArb2 } = require('fast-check-monorepo');4const fc2 = require('fast-check');5const { sourceArb: sourceArb3 } = require('fast-check');6console.log(sourceArb);7console.log(sourceArb2);8console.log(sourceArb3);9const fc = require('fast-check-monorepo');10const { sourceArb } = require('fast-check-monorepo');11const { sourceArb: sourceArb2 } = require('fast-check-monorepo');12const fc2 = require('fast-check');13const { sourceArb: sourceArb3 } = require('fast-check');14console.log(sourceArb);15console.log(sourceArb2);16console.log(sourceArb3);17const fc = require(require.resolve('fast-check-monorepo'));18const { sourceArb } = require(require.resolve('fast-check-monorepo'));19const { sourceArb: sourceArb2 } = require(require.resolve('fast-check-monorepo'));20const fc2 = require('fast-check');21const { sourceArb: sourceArb3 } = require('fast-check');22console.log(sourceArb);23console.log(sourceArb2);24console.log(sourceArb3);

Full Screen

Full Screen

Using AI Code Generation

copy

Full Screen

1const { sourceArb } = require('fast-check-monorepo');2const fc = require('fast-check');3const { run } = require('fast-check/lib/check/arbitrary/definition/Runner.js');4const arb = sourceArb(fc.integer(), fc.integer());5const result = run(arb, { numRuns: 100 });6console.log(result);7{8 "scripts": {9 },10 "dependencies": {11 }12}

Full Screen

Full Screen

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.

LambdaTest Learning Hubs:

YouTube

You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.

Run fast-check-monorepo automation tests on LambdaTest cloud grid

Perform automation testing on 3000+ real desktop and mobile devices online.

... View sample repo... View DocumentationSign up Free
›
_

Try LambdaTest Now !!

Get 100 minutes of automation test minutes FREE!!

...
Sign up with GoogleSign up with Email
Next-Gen App & Browser Testing Cloud

Was this article helpful?

Helpful

NotHelpful