How to use globalAsyncBeforeEach method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

AsyncProperty.spec.ts

Source:AsyncProperty.spec.ts

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  });...

Using AI Code Generation

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});

Using AI Code Generation

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});

Using AI Code Generation

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})

Using AI Code Generation

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("

Using AI Code Generation

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});

Using AI Code Generation

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

Using AI Code Generation

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](

Using AI Code Generation

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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