How to use buildFakeScheduler method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

ScheduledCommand.spec.ts

Source:ScheduledCommand.spec.ts

2import { AsyncCommand } from '../../../../../src/check/model/command/AsyncCommand';3import { Scheduler, SchedulerSequenceItem } from '../../../../../src/arbitrary/scheduler';4type Model = Record<string, unknown>;5type Real = unknown;6function buildFakeScheduler(): Scheduler {7  return {8    count: jest.fn(),9    waitOne: jest.fn(),10    waitAll: jest.fn(),11    waitFor: jest.fn(),12    schedule: jest.fn(),13    scheduleFunction: jest.fn(),14    scheduleSequence: (sequenceBuilders: SchedulerSequenceItem[]) => {15      const state = { done: false, faulty: false };16      const run = async () => {17        for (const b of sequenceBuilders) {18          const task = typeof b === 'function' ? b : b.builder;19          await task();20        }21      };22      return Object.assign(state, {23        task: run().then(24          () => {25            state.done = true;26            return state;27          },28          () => {29            state.faulty = true;30            return state;31          }32        ),33      });34    },35    report: jest.fn(),36  };37}38describe('ScheduledCommand', () => {39  it.each`40    checkValue41    ${true}42    ${false}43  `('Should properly forward the output of check ($checkValue)', async ({ checkValue }) => {44    // Arrange45    const cmd = new (class implements AsyncCommand<Model, Real> {46      check = (_m: Readonly<Model>) => checkValue;47      run = async (_m: Model, _r: Real) => {48        /* no-op */49      };50      toString = () => 'command';51    })();52    const scheduledCommand = new ScheduledCommand(buildFakeScheduler(), cmd);53    // Act54    const finalCheckValue = await scheduledCommand.check({});55    // Assert56    expect(finalCheckValue).toBe(checkValue);57  });58  it('Should properly forward exception raised during call to check', async () => {59    // Arrange60    const cmd = new (class implements AsyncCommand<Model, Real> {61      check = (_m: Readonly<Model>) => {62        throw new Error('Call to check failed');63      };64      run = async (_m: Model, _r: Real) => {65        /* no-op */66      };67      toString = () => 'command';68    })();69    const scheduledCommand = new ScheduledCommand(buildFakeScheduler(), cmd);70    // Act / Assert71    await expect(scheduledCommand.check({})).rejects.toMatchInlineSnapshot(`[Error: Call to check failed]`);72  });73  it('Should properly call to run', async () => {74    // Arrange75    const run = jest.fn();76    const model = {};77    const real = {};78    const cmd = new (class implements AsyncCommand<Model, Real> {79      check = (_m: Readonly<Model>) => true;80      run = run;81      toString = () => 'command';82    })();83    const scheduledCommand = new ScheduledCommand(buildFakeScheduler(), cmd);84    // Act85    await scheduledCommand.run(model, real);86    // Assert87    expect(run).toHaveBeenCalledTimes(1);88    expect(run).toHaveBeenCalledWith(model, real);89  });90  it('Should properly forward exception raised during call to run', async () => {91    // Arrange92    const cmd = new (class implements AsyncCommand<Model, Real> {93      check = (_m: Readonly<Model>) => true;94      run = async (_m: Model, _r: Real) => {95        throw new Error('Call to run failed');96      };97      toString = () => 'command';98    })();99    const scheduledCommand = new ScheduledCommand(buildFakeScheduler(), cmd);100    // Act / Assert101    await expect(scheduledCommand.run({}, {})).rejects.toMatchInlineSnapshot(`[Error: Call to run failed]`);102  });103  it('Should wrap calls to check and run using the scheduler', async () => {104    // Arrange105    const check = jest.fn();106    const run = jest.fn();107    const cmd = new (class implements AsyncCommand<Model, Real> {108      check = check;109      run = run;110      toString = () => 'command';111    })();112    const s = {113      ...buildFakeScheduler(),114      scheduleSequence: () => {115        return {116          done: false,117          faulty: false,118          task: Promise.resolve({ done: true, faulty: false }),119        };120      },121    };122    const scheduledCommand = new ScheduledCommand(s, cmd);123    // Act124    await scheduledCommand.check({});125    await scheduledCommand.run({}, {});126    // Assert127    expect(check).not.toHaveBeenCalled();...

Using AI Code Generation

1const fc = require('fast-check');2const { buildFakeScheduler } = require('fast-check-monorepo');3const scheduler = buildFakeScheduler();4const property = fc.property(5  fc.nat(),6  fc.nat(),7  fc.nat(),8  (a, b, c) => {9    const expected = a + b + c;10    scheduler.schedule(() => {11      const actual = a + b + c;12      expect(actual).toEqual(expected);13    });14    scheduler.flush();15    return true;16  }17);18fc.assert(property);19const fc = require('fast-check');20const { buildFakeScheduler } = require('fast-check');21const scheduler = buildFakeScheduler();22const property = fc.property(23  fc.nat(),24  fc.nat(),25  fc.nat(),26  (a, b, c) => {27    const expected = a + b + c;28    scheduler.schedule(() => {29      const actual = a + b + c;30      expect(actual).toEqual(expected);31    });32    scheduler.flush();33    return true;34  }35);36fc.assert(property);37const fc = require('fast-check');38const { buildFakeScheduler } = require('fast-check');39const scheduler = buildFakeScheduler();40const property = fc.property(41  fc.nat(),42  fc.nat(),43  fc.nat(),44  (a, b, c) => {45    const expected = a + b + c;46    scheduler.schedule(() => {47      const actual = a + b + c;48      expect(actual).toEqual(expected);49    });50    scheduler.flush();51    return true;52  }53);54fc.assert(property);55const fc = require('fast-check');56const { buildFakeScheduler } = require('fast-check');57const scheduler = buildFakeScheduler();58const property = fc.property(59  fc.nat(),60  fc.nat(),61  fc.nat(),62  (a, b, c) => {63    const expected = a + b + c;64    scheduler.schedule(() => {65      const actual = a + b + c;66      expect(actual).toEqual(expected);67    });68    scheduler.flush();69    return true;70  }71);72fc.assert(property);

Using AI Code Generation

1const buildFakeScheduler = require('fast-check-monorepo').buildFakeScheduler;2const fc = require('fast-check');3const scheduler = buildFakeScheduler();4fc.assert(fc.property(fc.integer(), fc.integer(), (a, b) => {5  return a + b === b + a;6}), { scheduler });

Using AI Code Generation

1const { buildFakeScheduler } = require('fast-check-monorepo');2const fc = require('fast-check');3const { _ } = fc;4const fakeScheduler = buildFakeScheduler();5const fakeSchedulerArb = fc.record({6  setTimeout: fc.func(fc.anything()),7  setInterval: fc.func(fc.anything()),8  clearTimeout: fc.func(fc.anything()),9  clearInterval: fc.func(fc.anything()),10});11const fakeSchedulerArb = fc.record({12  setTimeout: fc.func(fc.anything()),13  setInterval: fc.func(fc.anything()),14  clearTimeout: fc.func(fc.anything()),15  clearInterval: fc.func(fc.anything()),16});17describe('test', () => {18  it('should pass', () => {19    fc.assert(20      fc.property(fakeSchedulerArb, (scheduler) => {21        const { setTimeout, setInterval, clearTimeout, clearInterval } = scheduler;22        const fakeSetTimeout = setTimeout;23        const fakeSetInterval = setInterval;24        const fakeClearTimeout = clearTimeout;25        const fakeClearInterval = clearInterval;26        fakeSetTimeout(() => console.log('hello'), 2000);27        fakeSetInterval(() => console.log('world'), 3000);28        fakeClearTimeout();29        fakeClearInterval();30      })31    );32  });33});34const { buildFakeScheduler } = require('fast-check-monorepo');35const fc = require('fast-check');36const { _ } = fc;37const fakeScheduler = buildFakeScheduler();38const fakeSchedulerArb = fc.record({39  setTimeout: fc.func(fc.anything()),40  setInterval: fc.func(fc.anything()),41  clearTimeout: fc.func(fc.anything()),42  clearInterval: fc.func(fc.anything()),43});44describe('test', () => {45  it('should pass', () => {46    fc.assert(47      fc.property(fakeSchedulerArb, (scheduler) => {48        const { setTimeout, setInterval, clearTimeout, clearInterval } = scheduler;49        const fakeSetTimeout = setTimeout;50        const fakeSetInterval = setInterval;51        const fakeClearTimeout = clearTimeout;52        const fakeClearInterval = clearInterval;53        fakeSetTimeout(() => console.log('hello'), 2000);54        fakeSetInterval(() => console.log('world'), 3000);55        fakeClearTimeout();56        fakeClearInterval();57      })58    );59  });60});

Using AI Code Generation

1import { buildFakeScheduler } from 'fast-check'2const fakeScheduler = buildFakeScheduler()3fakeScheduler.schedule(() => console.log('hello'))4import { buildFakeScheduler } from 'fast-check'5const fakeScheduler = buildFakeScheduler()6fakeScheduler.schedule(() => console.log('hello'))

Using AI Code Generation

1const { buildFakeScheduler } = require('fast-check-monorepo');2const scheduler = buildFakeScheduler();3scheduler.schedule(1, 1, () => console.log('Hello World'));4scheduler.flush();5const { buildFakeScheduler } = require('fast-check-monorepo');6const scheduler = buildFakeScheduler();7scheduler.schedule(1, 1, () => console.log('Hello World'));8scheduler.flush();9import { buildFakeScheduler } from 'fast-check-monorepo';10const scheduler = buildFakeScheduler();11scheduler.schedule(1, 1, () => console.log('Hello World'));12scheduler.flush();13import { buildFakeScheduler } from 'fast-check-monorepo';14const scheduler = buildFakeScheduler();15scheduler.schedule(1, 1, () => console.log('Hello World'));16scheduler.flush();17import { buildFakeScheduler } from 'fast-check-monorepo';18const scheduler = buildFakeScheduler();19scheduler.schedule(1, 1, () => console.log('Hello World'));20scheduler.flush();21import { buildFakeScheduler } from 'fast-check-monorepo';22const scheduler = buildFakeScheduler();23scheduler.schedule(1, 1, () => console.log('Hello World'));24scheduler.flush();25import { buildFakeScheduler } from 'fast-check-monorepo';26const scheduler = buildFakeScheduler();27scheduler.schedule(1, 1, () => console.log('Hello World'));28scheduler.flush();29const { buildFakeScheduler } = require('fast-check-monorepo');30const scheduler = buildFakeScheduler();31scheduler.schedule(1, 1, () => console.log('Hello World'));32scheduler.flush();33{

Using AI Code Generation

1import { buildFakeScheduler } from 'fast-check';2import { buildFakeScheduler } from 'fast-check-monorepo';3import { buildFakeScheduler } from 'fast-check-monorepo';4import { buildFakeScheduler } from 'fast-check';5import { buildFakeScheduler } from 'fast-check-monorepo';6import { buildFakeScheduler } from 'fast-check';7import { buildFakeScheduler } from 'fast-check-monorepo';8import { buildFakeScheduler } from 'fast-check';9import { buildFakeScheduler } from 'fast-check-monorepo';10import { buildFakeScheduler } from 'fast-check';11import { buildFakeScheduler } from 'fast-check-monorepo';12import { buildFakeScheduler } from 'fast-check';13import { buildFakeScheduler } from 'fast-check-monorepo';14import { buildFakeScheduler } from 'fast-check';15import { buildFakeScheduler } from 'fast-check-monorepo';16import { buildFakeScheduler } from 'fast-check';17import { buildFakeScheduler } from 'fast-check-monorepo';18import { buildFakeScheduler } from 'fast-check';

Using AI Code Generation

1import { buildFakeScheduler } from "@jmondi/fast-check";2const scheduler = buildFakeScheduler();3const callback = jest.fn();4setTimeout(callback, 1000);5expect(callback).not.toBeCalled();6scheduler.next();7expect(callback).toBeCalled();8const callback2 = jest.fn();9const id = setTimeout(callback2, 1000);10expect(callback2).not.toBeCalled();11clearTimeout(id);12scheduler.next();13expect(callback2).not.toBeCalled();14const callback3 = jest.fn();15setInterval(callback3, 1000);16expect(callback3).not.toBeCalled();17scheduler.next();18expect(callback3).toBeCalled();19const callback4 = jest.fn();20const id2 = setInterval(callback4, 1000);21expect(callback4).not.toBeCalled();22clearInterval(id2);23scheduler.next();24expect(callback4).not.toBeCalled();

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.