Best JavaScript code snippet using fast-check-monorepo
SchedulerImplem.ts
Source:SchedulerImplem.ts
1import { escapeForTemplateString } from '../helpers/TextEscaper';2import { cloneMethod } from '../../../check/symbols';3import { stringify } from '../../../utils/stringify';4import { Scheduler, SchedulerReportItem, SchedulerSequenceItem } from '../interfaces/Scheduler';5/** @internal */6type TriggeredTask<TMetaData> = {7 status: 'resolved' | 'rejected';8 schedulingType: 'promise' | 'function' | 'sequence';9 taskId: number;10 label: string;11 metadata?: TMetaData;12 outputValue: string | undefined;13};14/** @internal */15export type ScheduledTask<TMetaData> = {16 original: PromiseLike<unknown>;17 scheduled: PromiseLike<unknown>;18 trigger: () => void;19 schedulingType: 'promise' | 'function' | 'sequence';20 taskId: number;21 label: string;22 metadata?: TMetaData;23};24/** @internal */25export type TaskSelector<TMetaData> = {26 clone: () => TaskSelector<TMetaData>;27 nextTaskIndex: (scheduledTasks: ScheduledTask<TMetaData>[]) => number;28};29/** @internal */30export class SchedulerImplem<TMetaData> implements Scheduler<TMetaData> {31 private lastTaskId: number;32 private readonly sourceTaskSelector: TaskSelector<TMetaData>;33 private readonly scheduledTasks: ScheduledTask<TMetaData>[];34 private readonly triggeredTasks: TriggeredTask<TMetaData>[];35 private readonly scheduledWatchers: (() => void)[];36 constructor(37 readonly act: (f: () => Promise<void>) => Promise<unknown>,38 private readonly taskSelector: TaskSelector<TMetaData>39 ) {40 this.lastTaskId = 0;41 this.sourceTaskSelector = taskSelector.clone();42 this.scheduledTasks = [];43 this.triggeredTasks = [];44 this.scheduledWatchers = [];45 }46 private static buildLog<TMetaData>(reportItem: SchedulerReportItem<TMetaData>) {47 return `[task\${${reportItem.taskId}}] ${48 reportItem.label.length !== 0 ? `${reportItem.schedulingType}::${reportItem.label}` : reportItem.schedulingType49 } ${reportItem.status}${50 reportItem.outputValue !== undefined ? ` with value ${escapeForTemplateString(reportItem.outputValue)}` : ''51 }`;52 }53 private log(54 schedulingType: 'promise' | 'function' | 'sequence',55 taskId: number,56 label: string,57 metadata: TMetaData | undefined,58 status: 'resolved' | 'rejected',59 data: unknown60 ) {61 this.triggeredTasks.push({62 status,63 schedulingType,64 taskId,65 label,66 metadata,67 outputValue: data !== undefined ? stringify(data) : undefined,68 });69 }70 private scheduleInternal<T>(71 schedulingType: 'promise' | 'function' | 'sequence',72 label: string,73 task: PromiseLike<T>,74 metadata: TMetaData | undefined,75 thenTaskToBeAwaited?: () => PromiseLike<T>76 ): Promise<T> {77 let trigger: (() => void) | null = null;78 const taskId = ++this.lastTaskId;79 const scheduledPromise = new Promise<T>((resolve, reject) => {80 trigger = () => {81 (thenTaskToBeAwaited ? task.then(() => thenTaskToBeAwaited()) : task).then(82 (data) => {83 this.log(schedulingType, taskId, label, metadata, 'resolved', data);84 return resolve(data);85 },86 (err) => {87 this.log(schedulingType, taskId, label, metadata, 'rejected', err);88 return reject(err);89 }90 );91 };92 });93 this.scheduledTasks.push({94 original: task,95 scheduled: scheduledPromise,96 // `trigger` will always be initialised at this point: body of `new Promise` has already been executed97 // eslint-disable-next-line @typescript-eslint/no-non-null-assertion98 trigger: trigger!,99 schedulingType,100 taskId,101 label,102 metadata,103 });104 if (this.scheduledWatchers.length !== 0) {105 this.scheduledWatchers[0]();106 }107 return scheduledPromise;108 }109 schedule<T>(task: Promise<T>, label?: string, metadata?: TMetaData): Promise<T> {110 return this.scheduleInternal('promise', label || '', task, metadata);111 }112 scheduleFunction<TArgs extends any[], T>(113 asyncFunction: (...args: TArgs) => Promise<T>114 ): (...args: TArgs) => Promise<T> {115 return (...args: TArgs) =>116 this.scheduleInternal(117 'function',118 `${asyncFunction.name}(${args.map(stringify).join(',')})`,119 asyncFunction(...args),120 undefined121 );122 }123 scheduleSequence(sequenceBuilders: SchedulerSequenceItem<TMetaData>[]): {124 done: boolean;125 faulty: boolean;126 task: Promise<{ done: boolean; faulty: boolean }>;127 } {128 // We run all the builders sequencially129 // BUT we allow tasks scheduled outside of this sequence130 // to be called between two of our builders131 const status = { done: false, faulty: false };132 const dummyResolvedPromise: PromiseLike<any> = { then: (f: () => any) => f() };133 // Placeholder resolver, immediately replaced by the one retrieved in `new Promise`134 // eslint-disable-next-line @typescript-eslint/no-empty-function135 let resolveSequenceTask = () => {};136 const sequenceTask = new Promise<void>((resolve) => (resolveSequenceTask = resolve));137 sequenceBuilders138 .reduce((previouslyScheduled: PromiseLike<any>, item: SchedulerSequenceItem<TMetaData>) => {139 const [builder, label, metadata] =140 typeof item === 'function' ? [item, item.name, undefined] : [item.builder, item.label, item.metadata];141 return previouslyScheduled.then(() => {142 // We schedule a successful promise that will trigger builder directly when triggered143 const scheduled = this.scheduleInternal('sequence', label, dummyResolvedPromise, metadata, () => builder());144 scheduled.catch(() => {145 status.faulty = true;146 resolveSequenceTask();147 });148 return scheduled;149 });150 }, dummyResolvedPromise)151 .then(152 () => {153 status.done = true;154 resolveSequenceTask();155 },156 () => {157 /* Discarding UnhandledPromiseRejectionWarning */158 /* No need to call resolveSequenceTask as it should already have been triggered */159 }160 );161 // TODO Prefer getter instead of sharing the variable itself162 // Would need to stop supporting <es5163 // return {164 // get done() { return status.done },165 // get faulty() { return status.faulty }166 // };167 return Object.assign(status, {168 task: Promise.resolve(sequenceTask).then(() => {169 return { done: status.done, faulty: status.faulty };170 }),171 });172 }173 count(): number {174 return this.scheduledTasks.length;175 }176 private async internalWaitOne() {177 if (this.scheduledTasks.length === 0) {178 throw new Error('No task scheduled');179 }180 const taskIndex = this.taskSelector.nextTaskIndex(this.scheduledTasks);181 const [scheduledTask] = this.scheduledTasks.splice(taskIndex, 1);182 scheduledTask.trigger(); // release the promise183 try {184 await scheduledTask.scheduled; // wait for its completion185 } catch (_err) {186 // We ignore failures here, we just want to wait the promise to be resolved (failure or success)187 }188 }189 async waitOne(): Promise<void> {190 await this.act(async () => await this.internalWaitOne());191 }192 async waitAll(): Promise<void> {193 while (this.scheduledTasks.length > 0) {194 await this.waitOne();195 }196 }197 async waitFor<T>(unscheduledTask: Promise<T>): Promise<T> {198 let taskResolved = false;199 // Define the lazy watchers: triggered whenever something new has been scheduled200 let awaiterPromise: Promise<void> | null = null;201 const awaiter = async () => {202 while (!taskResolved && this.scheduledTasks.length > 0) {203 await this.waitOne();204 }205 awaiterPromise = null;206 };207 const handleNotified = () => {208 if (awaiterPromise !== null) {209 // Awaiter is currently running, there is no need to relaunch it210 return;211 }212 // Schedule the next awaiter (awaiter will reset awaiterPromise to null)213 awaiterPromise = Promise.resolve().then(awaiter);214 };215 // Define the wrapping task and its resolution strategy216 const clearAndReplaceWatcher = () => {217 const handleNotifiedIndex = this.scheduledWatchers.indexOf(handleNotified);218 if (handleNotifiedIndex !== -1) {219 this.scheduledWatchers.splice(handleNotifiedIndex, 1);220 }221 if (handleNotifiedIndex === 0 && this.scheduledWatchers.length !== 0) {222 this.scheduledWatchers[0]();223 }224 };225 const rewrappedTask = unscheduledTask.then(226 (ret) => {227 taskResolved = true;228 if (awaiterPromise === null) {229 clearAndReplaceWatcher();230 return ret;231 }232 return awaiterPromise.then(() => {233 clearAndReplaceWatcher();234 return ret;235 });236 },237 (err) => {238 taskResolved = true;239 if (awaiterPromise === null) {240 clearAndReplaceWatcher();241 throw err;242 }243 return awaiterPromise.then(() => {244 clearAndReplaceWatcher();245 throw err;246 });247 }248 );249 // Simulate `handleNotified` is the number of waiting tasks is not zero250 // Must be called after unscheduledTask.then otherwise, a promise could be released while251 // we already have the value for unscheduledTask ready252 if (this.scheduledTasks.length > 0 && this.scheduledWatchers.length === 0) {253 handleNotified();254 }255 this.scheduledWatchers.push(handleNotified);256 return rewrappedTask;257 }258 report(): SchedulerReportItem<TMetaData>[] {259 return [260 ...this.triggeredTasks,261 ...this.scheduledTasks.map(262 (t): SchedulerReportItem<TMetaData> => ({263 status: 'pending',264 schedulingType: t.schedulingType,265 taskId: t.taskId,266 label: t.label,267 metadata: t.metadata,268 })269 ),270 ];271 }272 toString(): string {273 return (274 'schedulerFor()`\n' +275 this.report()276 .map(SchedulerImplem.buildLog)277 .map((log) => `-> ${log}`)278 .join('\n') +279 '`'280 );281 }282 [cloneMethod](): Scheduler<TMetaData> {283 return new SchedulerImplem(this.act, this.sourceTaskSelector);284 }...
Using AI Code Generation
1const { rewrappedTask } = require("fast-check-monorepo");2rewrappedTask();3const { rewrappedTask } = require("fast-check-monorepo");4rewrappedTask();5const { rewrappedTask } = require("fast-check-monorepo");6rewrappedTask();7const { rewrappedTask } = require("fast-check-monorepo");8rewrappedTask();9const { rewrappedTask } = require("fast-check-monorepo");10rewrappedTask();11const { rewrappedTask } = require("fast-check-monorepo");12rewrappedTask();13const { rewrappedTask } = require("fast-check-monorepo");14rewrappedTask();15const { rewrappedTask } = require("fast-check-monorepo");16rewrappedTask();17const { rewrappedTask } = require("fast-check-monorepo");18rewrappedTask();19const { rewrappedTask } = require("fast-check-monorepo");20rewrappedTask();21const { rewrappedTask } = require("fast-check-monorepo");22rewrappedTask();23const { rewrappedTask } = require("fast-check-monorepo");24rewrappedTask();25const { rewrappedTask }
Using AI Code Generation
1const { rewrappedTask } = require('fast-check-monorepo');2rewrappedTask();3const { rewrappedTask } = require('fast-check');4rewrappedTask();5 at Object.<anonymous> (C:\Users\username\Documents\test3.js:4:15)6 at Module._compile (internal/modules/cjs/loader.js:1158:30)7 at Object.Module._extensions..js (internal/modules/cjs/loader.js:1178:10)8 at Module.load (internal/modules/cjs/loader.js:1002:32)9 at Function.Module._load (internal/modules/cjs/loader.js:901:14)10 at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:74:12)11const { rewrappedTask } = require('fast-check-monorepo');12rewrappedTask();13const { rewrappedTask } = require(require.resolve('fast-check'));14rewrappedTask();15 at Object.<anonymous> (C:\Users\username\Documents\test4.js:4:15)16 at Module._compile (internal/modules/cjs/loader.js:1158:30)17 at Object.Module._extensions..js (internal/modules/cjs/loader.js:1178:10)18 at Module.load (internal/modules/cjs/loader.js:1002:32)19 at Function.Module._load (internal/modules/cjs/loader.js:901:14)20 at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:74:12)
Using AI Code Generation
1const fc = require('fast-check');2const {rewrappedTask} = require('fast-check-monorepo');3fc.assert(4 fc.property(5 fc.integer(),6 fc.integer(),7 fc.integer(),8 (a, b, c) => {9 const x = a + b + c;10 const y = a * b * c;11 return x > y;12 }13);14fc.assert(15 rewrappedTask(16 fc.property(17 fc.integer(),18 fc.integer(),19 fc.integer(),20 (a, b, c) => {21 const x = a + b + c;22 const y = a * b * c;23 return x > y;24 }25);26The rewrappedTask() method has the following signature:27rewrappedTask(property, settings)28The rewrappedTask() method can be used to run properties that have a high probability of failing. The Task will run the property in a separate process
Using AI Code Generation
1import { rewrappedTask } from 'fast-check-monorepo';2rewrappedTask();3import { rewrappedTask } from 'fast-check-monorepo';4rewrappedTask();5import { rewrappedTask } from 'fast-check-monorepo';6rewrappedTask();7import { rewrappedTask } from 'fast-check-monorepo';8rewrappedTask();9import { rewrappedTask } from 'fast-check-monorepo';10rewrappedTask();11import { rewrappedTask } from 'fast-check-monorepo';12rewrappedTask();13import { rewrappedTask } from 'fast-check-monorepo';14rewrappedTask();
Using AI Code Generation
1const fc = require('fast-check');2const { rewrappedTask } = require('../src/index');3 .record({4 name: fc.string(),5 dependencies: fc.array(fc.string()),6 fn: fc.func(fc.anything()),7 })8 .map((task) => rewrappedTask(task));9fc.assert(10 fc.property(rewrappedTaskArb, (task) => {11 const { name, dependencies, fn } = task;12 return name === task.name && dependencies === task.dependencies && fn === task.fn;13 })14);15const fc = require('fast-check');16const { rewrappedTask } = require('../src/index');17 .record({18 name: fc.string(),19 dependencies: fc.array(fc.string()),20 fn: fc.func(fc.anything()),21 })22 .map((task) => rewrappedTask(task));23fc.assert(24 fc.property(rewrappedTaskArb, (task) => {25 const { name, dependencies, fn } = task;26 return name === task.name && dependencies === task.dependencies && fn === task.fn;27 })28);29const fc = require('fast-check');30const { rewrappedTask } = require('../src/index');31 .record({32 name: fc.string(),33 dependencies: fc.array(fc.string()),34 fn: fc.func(fc.anything()),35 })36 .map((task) => rewrappedTask(task));37fc.assert(38 fc.property(rewrappedTaskArb, (task) => {39 const { name, dependencies, fn } = task;40 return name === task.name && dependencies === task.dependencies && fn === task.fn;41 })42);43const fc = require('fast-check');44const { rewrappedTask } = require('../src/index');45 .record({46 name: fc.string(),47 dependencies: fc.array(fc.string()),48 fn: fc.func(fc.anything()),49 })50 .map((task) => rewrappedTask(task));
Using AI Code Generation
1import { rewrappedTask } from 'fast-check-monorepo';2const task = rewrappedTask('test1.js', 'test2.js');3task.run().then((result) => {4 console.log(result);5});6import { rewrappedTask } from 'fast-check-monorepo';7const task = rewrappedTask('test1.js');8task.run().then((result) => {9 console.log(result);10});11import { rewrappedTask } from 'fast-check-monorepo';12const task = rewrappedTask();13task.run().then((result) => {14 console.log(result);15});16import { rewrappedTask } from 'fast-check-monorepo';17const task = rewrappedTask();18task.run().then((result) => {19 console.log(result);20});21import { rewrappedTask } from 'fast-check-monorepo';22const task = rewrappedTask();23task.run().then((result) => {24 console.log(result);25});26import { rewrappedTask } from 'fast-check-monorepo';27const task = rewrappedTask();28task.run().then((result) => {29 console.log(result);30});31import { rewrappedTask } from 'fast-check-monorepo';32const task = rewrappedTask();33task.run().then((result) => {34 console.log(result);35});36import { rewrappedTask } from 'fast-check-monorepo';37const task = rewrappedTask();38task.run().then((result) => {39 console.log(result);40});41import { rewrappedTask } from 'fast-check-monorepo';42const task = rewrappedTask();43task.run().then((result
Using AI Code Generation
1import { rewrappedTask } from 'fast-check-monorepo';2const task = rewrappedTask('test3', 'test3', 1, 1, 1, 1, 1, 1, 1, 1);3task.run().then((result) => {4 console.log(result);5});6import { rewrappedTask } from 'fast-check-monorepo';7const task = rewrappedTask('test4', 'test4', 1, 1, 1, 1, 1, 1, 1, 1);8task.run().then((result) => {9 console.log(result);10});11import { rewrappedTask } from 'fast-check-monorepo';12const task = rewrappedTask('test5', 'test5', 1, 1, 1, 1, 1, 1, 1, 1);13task.run().then((result) => {14 console.log(result);15});16import { rewrappedTask } from 'fast-check-monorepo';17const task = rewrappedTask('test6', 'test6', 1, 1, 1, 1, 1, 1, 1, 1);18task.run().then((result) => {19 console.log(result);20});21import { rewrappedTask } from 'fast-check-monorepo';22const task = rewrappedTask('test7', 'test7', 1, 1, 1, 1, 1, 1, 1, 1);23task.run().then((result) => {24 console.log(result);25});26import { rewrappedTask } from 'fast-check-monorepo';27const task = rewrappedTask('test8', 'test8', 1, 1, 1, 1,
Using AI Code Generation
1const { rewrappedTask } = require('fast-check-monorepo');2const { task } = require('fast-check');3const { task: task2 } = require('fast-check');4const { task: task3 } = require('fast-check');5const task1 = task(() => {6 console.log('task1');7 return 1;8});9const task4 = task(() => {10 console.log('task4');11 return 4;12});13const task5 = task(() => {14 console.log('task5');15 return 5;16});17const task6 = task(() => {18 console.log('task6');19 return 6;20});21const task7 = task(() => {22 console.log('task7');23 return 7;24});25const task8 = task(() => {26 console.log('task8');27 return 8;28});29const task9 = task(() => {30 console.log('task9');31 return 9;32});33const task10 = task(() => {34 console.log('task10');35 return 10;36});37const task11 = task(() => {38 console.log('task11');39 return 11;40});41const task12 = task(() => {42 console.log('task12');43 return 12;44});45const task13 = task(() => {46 console.log('task13');47 return 13;48});49const task14 = task(() => {50 console.log('task14');51 return 14;52});53const task15 = task(() => {54 console.log('task15');55 return 15;56});57const task16 = task(() => {58 console.log('task16');59 return 16;60});61const task17 = task(() => {62 console.log('task17');63 return 17;64});65const task18 = task(() => {66 console.log('task18');67 return 18;68});69const task19 = task(() => {70 console.log('task19');71 return 19;72});73const task20 = task(() => {74 console.log('task20');75 return 20;76});77const task21 = task(() => {78 console.log('task21');79 return 21;80});81const task22 = task(() => {82 console.log('task22');83 return 22;84});85const task23 = task(() => {
Using AI Code Generation
1const { rewrappedTask } = require('fast-check-monorepo');2const task = () => console.log('task');3const rewrappedTask1 = rewrappedTask(task);4const rewrappedTask2 = rewrappedTask(rewrappedTask1);5console.log('running task in rewrapped context');6rewrappedTask1();7console.log('running rewrapped task in rewrapped context');8rewrappedTask2();9const { rewrappedTask } = require('fast-check-monorepo');10const task = () => console.log('task');11const rewrappedTask1 = rewrappedTask(task);12const rewrappedTask2 = rewrappedTask(rewrappedTask1);13console.log('running task in rewrapped context');14rewrappedTask1();15console.log('running rewrapped task in rewrapped context');16rewrappedTask2();17const { rewrappedTask } = require('fast-check-monorepo');18const task = () => console.log('task');19const rewrappedTask1 = rewrappedTask(task);20const rewrappedTask2 = rewrappedTask(rewrappedTask1);21console.log('running task in rewrapped context');22rewrappedTask1();23console.log('running rewrapped task in
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.
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Get 100 minutes of automation test minutes FREE!!