How to use globalAsyncBeforeEach method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

AsyncProperty.spec.ts

Source:AsyncProperty.spec.ts Github

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1import { Arbitrary } from '../../../../src/check/arbitrary/definition/Arbitrary';2import { asyncProperty } from '../../../../src/check/property/AsyncProperty';3import { pre } from '../../../../src/check/precondition/Pre';4import { PreconditionFailure } from '../../../../src/check/precondition/PreconditionFailure';5import { configureGlobal, resetConfigureGlobal } from '../../../../src/check/runner/configuration/GlobalParameters';6import * as stubArb from '../../stubs/arbitraries';7import * as stubRng from '../../stubs/generators';8import { Value } from '../../../../src/check/arbitrary/definition/Value';9import { fakeArbitrary } from '../../arbitrary/__test-helpers__/ArbitraryHelpers';10import { Stream } from '../../../../src/stream/Stream';11import { PropertyFailure } from '../../../../src/check/property/IRawProperty';12import fc from 'fast-check';13describe('AsyncProperty', () => {14 afterEach(() => resetConfigureGlobal());15 it('Should fail if predicate fails', async () => {16 const p = asyncProperty(stubArb.single(8), async (_arg: number) => {17 return false;18 });19 expect(await p.run(p.generate(stubRng.mutable.nocall()).value)).not.toBe(null); // property fails20 });21 it('Should fail if predicate throws an Error', async () => {22 // Arrange23 let originalError: Error | null = null;24 const p = asyncProperty(stubArb.single(8), async (_arg: number) => {25 originalError = new Error('predicate throws');26 throw originalError;27 });28 // Act29 const out = await p.run(p.generate(stubRng.mutable.nocall()).value);30 // Assert31 expect((out as PropertyFailure).errorMessage).toContain('predicate throws');32 expect((out as PropertyFailure).errorMessage).toContain('\n\nStack trace:');33 expect((out as PropertyFailure).error).toBe(originalError);34 });35 it('Should fail if predicate throws a raw string', async () => {36 // Arrange37 const p = asyncProperty(stubArb.single(8), async (_arg: number) => {38 throw 'predicate throws';39 });40 // Act41 const out = await p.run(p.generate(stubRng.mutable.nocall()).value);42 // Assert43 expect(out).toEqual({44 error: 'predicate throws', // the original error is a string in this test45 errorMessage: 'predicate throws', // the original error results in this message46 });47 });48 it('Should fail if predicate throws anything', () => {49 fc.assert(50 fc.asyncProperty(fc.anything(), async (stuff) => {51 // Arrange52 fc.pre(stuff === null || typeof stuff !== 'object' || !('toString' in stuff));53 const p = asyncProperty(stubArb.single(8), (_arg: number) => {54 throw stuff;55 });56 // Act57 const out = await p.run(p.generate(stubRng.mutable.nocall()).value);58 // Assert59 expect(out).toEqual({ error: stuff, errorMessage: expect.any(String) });60 })61 );62 });63 it('Should forward failure of runs with failing precondition', async () => {64 let doNotResetThisValue = false;65 const p = asyncProperty(stubArb.single(8), async (_arg: number) => {66 pre(false);67 doNotResetThisValue = true;68 return false;69 });70 const out = await p.run(p.generate(stubRng.mutable.nocall()).value);71 expect(PreconditionFailure.isFailure(out)).toBe(true);72 expect(doNotResetThisValue).toBe(false); // does not run code after the failing precondition73 });74 it('Should succeed if predicate is true', async () => {75 const p = asyncProperty(stubArb.single(8), async (_arg: number) => {76 return true;77 });78 expect(await p.run(p.generate(stubRng.mutable.nocall()).value)).toBe(null);79 });80 it('Should succeed if predicate does not return anything', async () => {81 const p = asyncProperty(stubArb.single(8), async (_arg: number) => {});82 expect(await p.run(p.generate(stubRng.mutable.nocall()).value)).toBe(null);83 });84 it('Should wait until completion of the check to follow', async () => {85 const delay = () => new Promise((resolve) => setTimeout(resolve, 0));86 let runnerHasCompleted = false;87 let resolvePromise: (t: boolean) => void = null as any as (t: boolean) => void;88 const p = asyncProperty(stubArb.single(8), async (_arg: number) => {89 return await new Promise<boolean>(function (resolve) {90 resolvePromise = resolve;91 });92 });93 const runner = p.run(p.generate(stubRng.mutable.nocall()).value);94 runner.then(() => (runnerHasCompleted = true));95 await delay(); // give back the control for other threads96 expect(runnerHasCompleted).toBe(false);97 resolvePromise(true);98 await delay(); // give back the control for other threads99 expect(runnerHasCompleted).toBe(true);100 expect(await runner).toBe(null); // property success101 });102 it('Should throw on invalid arbitrary', () =>103 expect(() =>104 asyncProperty(stubArb.single(8), stubArb.single(8), {} as Arbitrary<any>, async () => {})105 ).toThrowError());106 it('Should use the unbiased arbitrary by default', () => {107 const { instance, generate } = fakeArbitrary<number>();108 generate.mockReturnValue(new Value(69, undefined));109 const mrng = stubRng.mutable.nocall();110 const p = asyncProperty(instance, async () => {});111 expect(generate).not.toHaveBeenCalled();112 expect(p.generate(mrng).value).toEqual([69]);113 expect(generate).toHaveBeenCalledTimes(1);114 expect(generate).toHaveBeenCalledWith(mrng, undefined);115 });116 it('Should use the biased arbitrary when asked to', () => {117 const { instance, generate } = fakeArbitrary<number>();118 generate.mockReturnValue(new Value(42, undefined));119 const mrng = stubRng.mutable.nocall();120 const p = asyncProperty(instance, async () => {});121 expect(generate).not.toHaveBeenCalled();122 const runId1 = 0;123 const expectedBias1 = 2;124 expect(p.generate(mrng, runId1).value).toEqual([42]);125 expect(generate).toHaveBeenCalledTimes(1);126 expect(generate).toHaveBeenCalledWith(mrng, expectedBias1);127 const runId2 = 100;128 const expectedBias2 = 4;129 expect(p.generate(stubRng.mutable.nocall(), runId2).value).toEqual([42]);130 expect(generate).toHaveBeenCalledTimes(2);131 expect(generate).toHaveBeenCalledWith(mrng, expectedBias2);132 });133 it('Should always execute beforeEach before the test', async () => {134 const prob = { beforeEachCalled: false };135 const p = asyncProperty(stubArb.single(8), async (_arg: number) => {136 const beforeEachCalled = prob.beforeEachCalled;137 prob.beforeEachCalled = false;138 return beforeEachCalled;139 }).beforeEach(async (globalBeforeEach) => {140 prob.beforeEachCalled = true;141 await globalBeforeEach();142 });143 expect(await p.run(p.generate(stubRng.mutable.nocall()).value)).toBe(null);144 });145 it('Should execute both global and local beforeEach hooks before the test', async () => {146 const globalAsyncBeforeEach = jest.fn();147 const prob = { beforeEachCalled: false };148 configureGlobal({149 asyncBeforeEach: globalAsyncBeforeEach,150 });151 const p = asyncProperty(stubArb.single(8), async (_arg: number) => {152 const beforeEachCalled = prob.beforeEachCalled;153 prob.beforeEachCalled = false;154 return beforeEachCalled;155 })156 .beforeEach(async (globalBeforeEach) => {157 prob.beforeEachCalled = false;158 await globalBeforeEach();159 })160 .beforeEach(async (previousBeforeEach) => {161 await previousBeforeEach();162 prob.beforeEachCalled = true;163 });164 expect(await p.run(p.generate(stubRng.mutable.nocall()).value)).toBe(null);165 expect(globalAsyncBeforeEach).toBeCalledTimes(1);166 });167 it('Should use global asyncBeforeEach as default if specified', async () => {168 const prob = { beforeEachCalled: false };169 configureGlobal({170 asyncBeforeEach: () => (prob.beforeEachCalled = true),171 });172 const p = asyncProperty(stubArb.single(8), async (_arg: number) => {173 const beforeEachCalled = prob.beforeEachCalled;174 prob.beforeEachCalled = false;175 return beforeEachCalled;176 });177 expect(await p.run(p.generate(stubRng.mutable.nocall()).value)).toBe(null);178 });179 it('Should use global beforeEach as default if specified', async () => {180 const prob = { beforeEachCalled: false };181 configureGlobal({182 beforeEach: () => (prob.beforeEachCalled = true),183 });184 const p = asyncProperty(stubArb.single(8), async (_arg: number) => {185 const beforeEachCalled = prob.beforeEachCalled;186 prob.beforeEachCalled = false;187 return beforeEachCalled;188 });189 expect(await p.run(p.generate(stubRng.mutable.nocall()).value)).toBe(null);190 });191 it('Should fail if both global asyncBeforeEach and beforeEach are specified', () => {192 configureGlobal({193 asyncBeforeEach: () => {},194 beforeEach: () => {},195 });196 expect(() => asyncProperty(stubArb.single(8), async () => {})).toThrowError(197 'Global "asyncBeforeEach" and "beforeEach" parameters can\'t be set at the same time when running async properties'198 );199 });200 it('Should execute afterEach after the test on success', async () => {201 const callOrder: string[] = [];202 const p = asyncProperty(stubArb.single(8), async (_arg: number) => {203 callOrder.push('test');204 return true;205 }).afterEach(async () => {206 callOrder.push('afterEach');207 });208 expect(await p.run(p.generate(stubRng.mutable.nocall()).value)).toBe(null);209 expect(callOrder).toEqual(['test', 'afterEach']);210 });211 it('Should execute afterEach after the test on failure', async () => {212 const callOrder: string[] = [];213 const p = asyncProperty(stubArb.single(8), async (_arg: number) => {214 callOrder.push('test');215 return false;216 }).afterEach(async () => {217 callOrder.push('afterEach');218 });219 expect(await p.run(p.generate(stubRng.mutable.nocall()).value)).not.toBe(null);220 expect(callOrder).toEqual(['test', 'afterEach']);221 });222 it('Should execute afterEach after the test on uncaught exception', async () => {223 const callOrder: string[] = [];224 const p = asyncProperty(stubArb.single(8), async (_arg: number) => {225 callOrder.push('test');226 throw new Error('uncaught');227 }).afterEach(async () => {228 callOrder.push('afterEach');229 });230 expect(await p.run(p.generate(stubRng.mutable.nocall()).value)).not.toBe(null);231 expect(callOrder).toEqual(['test', 'afterEach']);232 });233 it('Should use global asyncAfterEach as default if specified', async () => {234 const callOrder: string[] = [];235 configureGlobal({236 asyncAfterEach: async () => callOrder.push('globalAsyncAfterEach'),237 });238 const p = asyncProperty(stubArb.single(8), async (_arg: number) => {239 callOrder.push('test');240 return false;241 });242 expect(await p.run(p.generate(stubRng.mutable.nocall()).value)).not.toBe(null);243 expect(callOrder).toEqual(['test', 'globalAsyncAfterEach']);244 });245 it('Should use global afterEach as default if specified', async () => {246 const callOrder: string[] = [];247 configureGlobal({248 afterEach: async () => callOrder.push('globalAfterEach'),249 });250 const p = asyncProperty(stubArb.single(8), async (_arg: number) => {251 callOrder.push('test');252 return false;253 });254 expect(await p.run(p.generate(stubRng.mutable.nocall()).value)).not.toBe(null);255 expect(callOrder).toEqual(['test', 'globalAfterEach']);256 });257 it('Should execute both global and local afterEach hooks', async () => {258 const callOrder: string[] = [];259 configureGlobal({260 asyncAfterEach: async () => callOrder.push('globalAsyncAfterEach'),261 });262 const p = asyncProperty(stubArb.single(8), async (_arg: number) => {263 callOrder.push('test');264 return true;265 })266 .afterEach(async (globalAfterEach) => {267 callOrder.push('afterEach');268 await globalAfterEach();269 })270 .afterEach(async (previousAfterEach) => {271 await previousAfterEach();272 callOrder.push('after afterEach');273 });274 expect(await p.run(p.generate(stubRng.mutable.nocall()).value)).toBe(null);275 expect(callOrder).toEqual(['test', 'afterEach', 'globalAsyncAfterEach', 'after afterEach']);276 });277 it('Should fail if both global asyncAfterEach and afterEach are specified', () => {278 configureGlobal({279 asyncAfterEach: () => {},280 afterEach: () => {},281 });282 expect(() => asyncProperty(stubArb.single(8), async () => {})).toThrowError(283 'Global "asyncAfterEach" and "afterEach" parameters can\'t be set at the same time when running async properties'284 );285 });286 it('should not call shrink on the arbitrary if no context and not unhandled value', () => {287 // Arrange288 const { instance: arb, shrink, canShrinkWithoutContext } = fakeArbitrary();289 canShrinkWithoutContext.mockReturnValue(false);290 const value = Symbol();291 // Act292 const p = asyncProperty(arb, jest.fn());293 const shrinks = p.shrink(new Value([value], undefined)); // context=undefined in the case of user defined values294 // Assert295 expect(canShrinkWithoutContext).toHaveBeenCalledWith(value);296 expect(canShrinkWithoutContext).toHaveBeenCalledTimes(1);297 expect(shrink).not.toHaveBeenCalled();298 expect([...shrinks]).toEqual([]);299 });300 it('should call shrink on the arbitrary if no context but properly handled value', () => {301 // Arrange302 const { instance: arb, shrink, canShrinkWithoutContext } = fakeArbitrary();303 canShrinkWithoutContext.mockReturnValue(true);304 const s1 = Symbol();305 const s2 = Symbol();306 shrink.mockReturnValue(Stream.of(new Value<symbol>(s1, undefined), new Value(s2, undefined)));307 const value = Symbol();308 // Act309 const p = asyncProperty(arb, jest.fn());310 const shrinks = p.shrink(new Value([value], undefined)); // context=undefined in the case of user defined values311 // Assert312 expect(canShrinkWithoutContext).toHaveBeenCalledWith(value);313 expect(canShrinkWithoutContext).toHaveBeenCalledTimes(1);314 expect(shrink).toHaveBeenCalledWith(value, undefined);315 expect(shrink).toHaveBeenCalledTimes(1);316 expect([...shrinks].map((s) => s.value_)).toEqual([[s1], [s2]]);317 });...

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1const { globalAsyncBeforeEach, globalAsyncAfterEach } = require('fast-check/lib/jest/jestHooks');2describe('test', () => {3 globalAsyncBeforeEach(() => {4 return new Promise((resolve) => {5 setTimeout(() => {6 resolve();7 }, 2000);8 });9 });10 globalAsyncAfterEach(() => {11 return new Promise((resolve) => {12 setTimeout(() => {13 resolve();14 }, 2000);15 });16 });17 it('test', () => {18 expect(1).toBe(1);19 });20});

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1globalAsyncBeforeEach(async () => {2 await doSomething();3});4globalAsyncBeforeEach(async () => {5 await doSomethingElse();6});7globalAsyncBeforeEach(async () => {8 await doSomethingElse();9});10globalAsyncBeforeEach(async () => {11 await doSomethingElse();12});13globalAsyncBeforeEach(async () => {14 await doSomethingElse();15});16globalAsyncBeforeEach(async () => {17 await doSomethingElse();18});19globalAsyncBeforeEach(async () => {20 await doSomethingElse();21});22globalAsyncBeforeEach(async () => {23 await doSomethingElse();24});25globalAsyncBeforeEach(async () => {26 await doSomethingElse();27});28globalAsyncBeforeEach(async () => {29 await doSomethingElse();30});31globalAsyncBeforeEach(async () => {32 await doSomethingElse();33});34globalAsyncBeforeEach(async () => {35 await doSomethingElse();36});

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Using AI Code Generation

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1import { globalAsyncBeforeEach } from 'fast-check'2globalAsyncBeforeEach(1000, async () => {3})4import { globalAsyncBeforeEach } from 'fast-check'5globalAsyncBeforeEach(1000, async () => {6})7I am trying to use the globalAsyncBeforeEach method of fast-check-monorepo in my jest tests. I have two files with jest tests, test.js and test2.js. I am trying to use the globalAsyncBeforeEach method in both files. However, the globalAsyncBeforeEach method is not available in test2.js. I am importing the globalAsyncBeforeEach method in both files. I am using the following code in both files:8import { globalAsyncBeforeEach } from 'fast-check'9globalAsyncBeforeEach(1000, async () => {10})11import { globalAsyncBeforeEach } from 'fast-check'12globalAsyncBeforeEach(1000, async () => {13})14import { globalAsyncBeforeEach } from 'fast-check'15globalAsyncBeforeEach(1000, async () => {16})17import { globalAsyncBeforeEach } from 'fast-check'18globalAsyncBeforeEach(1000, async () => {19})20import { globalAsyncBeforeEach } from 'fast-check'21globalAsyncBeforeEach(1000, async () => {22})23import { globalAsyncBeforeEach } from 'fast-check'24globalAsyncBeforeEach(1000, async () => {25})26import { globalAsyncBeforeEach } from 'fast-check'27globalAsyncBeforeEach(1000, async () => {28})29import { globalAsyncBeforeEach } from 'fast-check'30globalAsyncBeforeEach(1000, async () => {31})

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1const { globalAsyncBeforeEach, check } = require("fast-check");2const { globalBeforeEach } = require("jest-circus");3globalBeforeEach(async () => {4 await globalAsyncBeforeEach();5});6test("test", () => {7 check(8 fc.property(fc.array(fc.integer()), (arr) => {9 return arr.length >= 0;10 })11 );12});13module.exports = {14};15const { globalAsyncSetup } = require("fast-check-monorepo");16module.exports = async () => {17 await globalAsyncSetup();18};19const { globalAsyncTeardown } = require("fast-check-monorepo");20module.exports = async () => {21 await globalAsyncTeardown();22};23const { beforeEach, test } = require("jest-circus");24const { check } = require("fast-check");25let globalVar;26beforeEach(() => {27 globalVar = 0;28});29test("test", () => {30 check(31 fc.property(fc.array(fc.integer()), (arr) => {32 return arr.length >= 0;33 })34 );35});36module.exports = {37};38module.exports = async () => {};39module.exports = async () => {};40const { beforeEach, test } = require("

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1import { globalAsyncBeforeEach } from 'fast-check/lib/test-utils/jest/AsyncBeforeEach';2import { globalBeforeEach } from 'fast-check/lib/test-utils/jest/BeforeEach';3globalAsyncBeforeEach(async () => {4 await someAsyncSetup();5});6globalBeforeEach(() => {7 someSetup();8});9import { globalAsyncBeforeEach } from 'fast-check/lib/test-utils/jest/AsyncBeforeEach';10import { globalBeforeEach } from 'fast-check/lib/test-utils/jest/BeforeEach';11globalAsyncBeforeEach(async () => {12 await someAsyncSetup();13});14globalBeforeEach(() => {15 someSetup();16});17import { globalAsyncBeforeEach } from 'fast-check/lib/test-utils/jest/AsyncBeforeEach';18import { globalBeforeEach } from 'fast-check/lib/test-utils/jest/BeforeEach';19globalAsyncBeforeEach(async () => {20 await someAsyncSetup();21});22globalBeforeEach(() => {23 someSetup();24});25import { globalAsyncBeforeEach } from 'fast-check/lib/test-utils/jest/AsyncBeforeEach';26import { globalBeforeEach } from 'fast-check/lib/test-utils/jest/BeforeEach';27globalAsyncBeforeEach(async () => {28 await someAsyncSetup();29});30globalBeforeEach(() => {31 someSetup();32});33import { globalAsyncBeforeEach } from 'fast-check/lib/test-utils/jest/AsyncBeforeEach';34import { globalBeforeEach } from 'fast-check/lib/test-utils/jest/BeforeEach';35globalAsyncBeforeEach(async () => {36 await someAsyncSetup();37});38globalBeforeEach(() => {39 someSetup();40});41import { globalAsyncBeforeEach } from 'fast-check/lib/test-utils/jest/AsyncBeforeEach';42import { globalBeforeEach } from 'fast-check/lib/test-utils/jest/BeforeEach';43globalAsyncBeforeEach(async () => {44 await someAsyncSetup();45});46globalBeforeEach(() => {47 someSetup();48});49import { globalAsyncBeforeEach } from 'fast-check/lib/test-utils/jest/AsyncBeforeEach';50import { globalBeforeEach } from 'fast-check/lib/test-utils/jest/BeforeEach';51globalAsyncBeforeEach(async () => {52 await someAsyncSetup();53});54globalBeforeEach(() => {55 someSetup();56});

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1globalAsyncBeforeEach(async () => {2});3globalAsyncAfterEach(async () => {4});5globalAsyncBeforeEach(async () => {6});7globalAsyncAfterEach(async () => {8});

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1const { globalAsyncBeforeEach } = require('fast-check-monorepo');2globalAsyncBeforeEach(async () => {3});4const { globalAsyncIt } = require('fast-check-monorepo');5globalAsyncIt('should do something', async () => {6});7const { globalAsyncBeforeEach } = require('fast-check-monorepo');8globalAsyncBeforeEach(async () => {9});10const { globalAsyncIt } = require('fast-check-monorepo');11globalAsyncIt('should do something else', async () => {12});13const { globalAsyncBeforeEach } = require('fast-check-monorepo');14globalAsyncBeforeEach(async () => {15});16const { globalAsyncIt } = require('fast-check-monorepo');17globalAsyncIt('should do something else', async () => {18});19[MIT](

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1const fc = require("fast-check");2const { globalAsyncBeforeEach } = require("fast-check-monorepo");3globalAsyncBeforeEach(async () => {4});5fc.assert(6 fc.property(fc.string(), async (s) => {7 })8);9const fc = require("fast-check");10const { globalAsyncBeforeEach } = require("fast-check-monorepo");11globalAsyncBeforeEach(async () => {12});13fc.assert(14 fc.property(fc.string(), async (s) => {15 })16);17const fc = require("fast-check");18const { globalAsyncBeforeEach } = require("fast-check-monorepo");19globalAsyncBeforeEach(async () => {20});21fc.assert(22 fc.property(fc.string(), async (s) => {23 })24);25const fc = require("fast-check");26const { globalAsyncBeforeEach } = require("fast-check-monorepo");27globalAsyncBeforeEach(async () => {28});29fc.assert(30 fc.property(fc.string(), async (s) => {31 })32);33const fc = require("fast-check");34const { globalAsyncBeforeEach } = require("fast-check-monorepo");35globalAsyncBeforeEach(async () => {36});37fc.assert(38 fc.property(fc.string(), async (s) => {39 })40);41const fc = require("fast-check");42const { globalAsyncBeforeEach } = require("fast-check-monorepo

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