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

How to use allKnownTerminateAllWorkersPerProperty method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

main.ts

Source:main.ts

1import { isMainThread, parentPort, workerData } from 'node:worker_threads';2import { assert as fcAssert, type IAsyncProperty, type IProperty, type Parameters } from 'fast-check';3import { runWorker } from './internals/WorkerRunner.js';4import { runMainThread } from './internals/MainThreadRunner.js';5import { NoopWorkerProperty } from './internals/NoopWorkerProperty.js';6import { type PropertyArbitraries, type PropertyPredicate, type WorkerProperty } from './internals/SharedTypes.js';7let lastWorkerId = 0;8const allKnownTerminateAllWorkersPerProperty = new Map<9  IAsyncProperty<unknown> | IProperty<unknown>,10  () => Promise<void>11>();12async function clearAllWorkersFor(property: IAsyncProperty<unknown> | IProperty<unknown>): Promise<void> {13  const terminateAllWorkers = allKnownTerminateAllWorkersPerProperty.get(property);14  if (terminateAllWorkers === undefined) {15    return;16  }17  await terminateAllWorkers();18}19/**20 * Run the property, throw in case of failure.21 *22 * Key differences from the assert function defined within fast-check itself:23 * - it is asynchronous24 * - it automatically kills all workers linked to the property on exit25 * - it does not execute itself in a worker mode26 *27 * It can be called directly from describe/it blocks of Mocha. No meaningful results are produced in case of success.28 *29 * @param property â Synchronous or asynchronous property to be checked30 * @param params â Optional parameters to customize the execution31 * @public32 */33export async function assert<Ts>(property: IAsyncProperty<Ts> | IProperty<Ts>, params?: Parameters<Ts>): Promise<void> {34  if (isMainThread) {35    // Main thread code36    try {37      await fcAssert(property, params);38    } finally {39      await clearAllWorkersFor(property);40    }41  } else {42    // Worker code43    return;44  }45}46/**47 * Create an async property backed by workers.48 * The predicate will ALWAYS run in another worker and not within the main thread which will only deal with the generation of the random values and orchestration.49 *50 * For the moment such property MUST explicitely be executed from the `assert` helper function of this package.51 * Otherwise workers will stay forever.52 *53 * @param url - URL towards the worker file: usually `pathToFileURL(__filename)` for commonjs and `new URL(import.meta.url)` for es modules54 * @param args - Arbitraries and predicate55 * @public56 */57export function workerProperty<Ts extends [unknown, ...unknown[]]>(58  url: URL,59  ...args: [...arbitraries: PropertyArbitraries<Ts>, predicate: PropertyPredicate<Ts>]60): WorkerProperty<Ts> {61  const currentWorkerId = ++lastWorkerId;62  if (isMainThread) {63    // Main thread code64    const arbitraries = args.slice(0, -1) as PropertyArbitraries<Ts>;65    const { property, terminateAllWorkers } = runMainThread<Ts>(url, currentWorkerId, arbitraries);66    allKnownTerminateAllWorkersPerProperty.set(property, terminateAllWorkers);67    return property;68  } else if (parentPort !== null && currentWorkerId === workerData.currentWorkerId) {69    // Worker code70    const predicate = args[args.length - 1] as PropertyPredicate<Ts>;71    runWorker(parentPort, predicate);72  }73  // Cannot throw for invalid worker at this point as we may not be the only worker for this run74  // so we just return a dummy no-op property75  return new NoopWorkerProperty<Ts>();...

Using AI Code Generation

1const fc = require("fast-check");2const { allKnownTerminateAllWorkersPerProperty } = require("fast-check-monorepo");3const test = () => {4  allKnownTerminateAllWorkersPerProperty(5    fc.property(fc.integer(), (x) => {6      return x >= 0;7    })8  );9};10test();11{12  "dependencies": {13  }14}15{16  "parserOptions": {17  },18  "env": {19  },20  "rules": {21  }22}23{24}25{26  "parserOptions": {27  },28  "env": {29  },30  "rules": {31  }32}33{34}35{36  "parserOptions": {37  },38  "env": {

Using AI Code Generation

1const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');2const { property } = require('fast-check');3const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');4const { property } = require('fast-check');5const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');6const { property } = require('fast-check');7const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');8const { property } = require('fast-check');9const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');10const { property } = require('fast-check');11const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');12const { property } = require('fast-check');13const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');14const { property } = require('fast-check');15const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');16const { property } = require('fast-check');17const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');18const { property } = require('fast-check');19const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');20const { property } = require('fast-check');21const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');22const { property } = require('fast-check');23const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');24const { property } = require('fast-check');25const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');26const { property } = require('fast-check');27const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');28const { property } = require('fast-check');29const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');30const { property } = require('fast-check');31const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');32const { property } = require('fast-check');33const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');34const { property } = require('fast-check');35const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');36const { property } = require('fast-check');37const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');38const { property } = require('fast-check');

Using AI Code Generation

1const fc = require('fast-check');2const { allKnownTerminateAllWorkersPerProperty } = require('fast-check-monorepo');3const arb = fc.oneof(fc.integer(), fc.string());4const property = fc.property(arb, (value) => {5  return typeof value === 'number' || typeof value === 'string';6});7const test = async () => {8  try {9    await allKnownTerminateAllWorkersPerProperty(property);10  } catch (e) {11    console.error(e);12  }13};14test();15{16  "scripts": {17  },18  "dependencies": {19  }20}

Using AI Code Generation

1const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');2const { property } = require('fast-check');3const arb = fc.integer();4const prop = property(arb, arb, (a, b) => a + b === b + a);5allKnownTerminateAllWorkersPerProperty(prop, { numRuns: 1000 })6  .then((result) => {7    console.log('result', result);8  })9  .catch((err) => {10    console.log('error', err);11  });

Using AI Code Generation

1const { allKnownTerminateAllWorkersPerProperty } = require('fast-check');2const { allKnownTerminateAllWorkers } = require('fast-check-monorepo');3const property = fc.property(fc.integer(), fc.integer(), (a, b) => {4  return a + b === b + a;5});6const property2 = fc.property(fc.integer(), fc.integer(), (a, b) => {7  return a + b === b + a;8});9fc.assert(property);10fc.assert(property2);11allKnownTerminateAllWorkersPerProperty(property);12allKnownTerminateAllWorkersPerProperty(property2);13allKnownTerminateAllWorkers();14{15  "dependencies": {16  },17  "devDependencies": {18  },19  "scripts": {20  },21}

Using AI Code Generation

1import { allKnownTerminateAllWorkersPerProperty } from 'fast-check-monorepo';2import { test } from 'ava';3test('test', t => {4  t.plan(1);5  allKnownTerminateAllWorkersPerProperty(6    (a, b) => {7      return a + b === b + a;8    },9    {10    },11    {12    }13  ).then(res => {14    t.is(res, true);15  });16});17allKnownTerminateAllWorkersPerProperty(18  (a, b) => {19    return a + b === b + a;20  },21  {22  },23  {24  }25).then(res => {26  t.is(res, true);27});28allKnownTerminateAllWorkersPerProperty(29  (a, b) => {30    return a + b === b + a;31  },32  {33  },34  {35  }36).then(res => {37  t.is(res, true);38});

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.