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How to use descriptor method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

docs.ts

Source:docs.ts

1/**2 * @license3 * Copyright (c) 2015 The Polymer Project Authors. All rights reserved.4 * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt5 * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt6 * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt7 * Code distributed by Google as part of the polymer project is also8 * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt9 */10'use strict';11import * as jsdoc from './jsdoc'12import * as dom5 from 'dom5'13import {14  FeatureDescriptor, FunctionDescriptor, PropertyDescriptor, Descriptor,15  ElementDescriptor, BehaviorsByName, EventDescriptor, BehaviorDescriptor16} from './descriptors'17/** Properties on element prototypes that are purely configuration. */18const ELEMENT_CONFIGURATION = [19  'attached',20  'attributeChanged',21  'beforeRegister',22  'configure',23  'constructor',24  'created',25  'detached',26  'enableCustomStyleProperties',27  'extends',28  'hostAttributes',29  'is',30  'listeners',31  'mixins',32  'properties',33  'ready',34  'registered'35];36/** Tags understood by the annotation process, to be removed during `clean`. */37const HANDLED_TAGS = [38  'param',39  'return',40  'type',41];42/**43 * Annotates Hydrolysis descriptors, processing any `desc` properties as JSDoc.44 *45 * You probably want to use a more specialized version of this, such as46 * `annotateElement`.47 *48 * Processed JSDoc values will be made available via the `jsdoc` property on a49 * descriptor node.50 *51 * @param {Object} descriptor The descriptor node to process.52 * @return {Object} The descriptor that was given.53 */54export function annotate(descriptor: Descriptor): Descriptor{55  if (!descriptor || descriptor.jsdoc) return descriptor;56  if (typeof descriptor.desc === 'string') {57    descriptor.jsdoc = jsdoc.parseJsdoc(descriptor.desc);58    // We want to present the normalized form of a descriptor.59    descriptor.jsdoc.orig = descriptor.desc;60    descriptor.desc       = descriptor.jsdoc.description;61  }62  return descriptor;63}64/**65 * Annotates @event, @hero, & @demo tags66 */67export function annotateElementHeader(descriptor: ElementDescriptor) {68  if (descriptor.events) {69    descriptor.events.forEach(function(event) {70      _annotateEvent(event);71    });72    descriptor.events.sort( function(a,b) {73      return a.name.localeCompare(b.name);74    });75  }76  descriptor.demos = [];77  if (descriptor.jsdoc && descriptor.jsdoc.tags) {78    descriptor.jsdoc.tags.forEach( function(tag) {79      switch(tag.tag) {80        case 'hero':81          descriptor.hero = tag.name || 'hero.png';82          break;83        case 'demo':84          descriptor.demos.push({85            desc: tag.description || 'demo',86            path: tag.name || 'demo/index.html'87          });88          break;89      }90    });91  }92}93function copyProperties(94    from:ElementDescriptor, to:ElementDescriptor,95    behaviorsByName:BehaviorsByName) {96  if (from.properties) {97    from.properties.forEach(function(fromProp){98      for (var toProp:PropertyDescriptor, i = 0;99           i < to.properties.length; i++) {100        toProp = to.properties[i];101        if (fromProp.name === toProp.name) {102          return;103        }104      }105      var newProp = {__fromBehavior: from.is};106      if (fromProp.__fromBehavior) {107        return;108      }109      Object.keys(fromProp).forEach(function(propertyField){110        newProp[propertyField] = fromProp[propertyField];111      });112      to.properties.push(<any>newProp);113    });114    from.events.forEach(function(fromEvent){115      for (var toEvent:EventDescriptor, i = 0; i < to.events.length; i++) {116        toEvent = to.events[i];117        if (fromEvent.name === toEvent.name) {118          return;119        }120      }121      if (fromEvent.__fromBehavior) {122        return;123      }124      var newEvent = {__fromBehavior: from.is};125      Object.keys(fromEvent).forEach(function(eventField){126        newEvent[eventField] = fromEvent[eventField];127      });128      to.events.push(newEvent);129    });130  }131  if (!from.behaviors) {132    return;133  }134  for (let i = from.behaviors.length - 1; i >= 0; i--) {135    // TODO: what's up with behaviors sometimes being a literal, and sometimes136    // being a descriptor object?137    const localBehavior: any = from.behaviors[i];138    var definedBehavior =139        behaviorsByName[localBehavior] || behaviorsByName[localBehavior.symbol];140    if (!definedBehavior) {141        console.warn("Behavior " + localBehavior + " not found when mixing " +142          "properties into " + to.is + "!");143        return;144    }145    copyProperties(definedBehavior, to, behaviorsByName);146  }147}148function mixinBehaviors(149    descriptor:ElementDescriptor, behaviorsByName: BehaviorsByName) {150  if (descriptor.behaviors) {151    for (let i = descriptor.behaviors.length - 1; i >= 0; i--) {152      const behavior = <string>descriptor.behaviors[i];153      if (!behaviorsByName[behavior]) {154        console.warn("Behavior " + behavior + " not found when mixing " +155          "properties into " + descriptor.is + "!");156        break;157      }158      var definedBehavior = behaviorsByName[<string>behavior];159      copyProperties(definedBehavior, descriptor, behaviorsByName);160    }161  }162}163/**164 * Annotates documentation found within a Hydrolysis element descriptor. Also165 * supports behaviors.166 *167 * If the element was processed via `hydrolize`, the element's documentation168 * will also be extracted via its <dom-module>.169 *170 * @param {Object} descriptor The element descriptor.171 * @return {Object} The descriptor that was given.172 */173export function annotateElement(174    descriptor: ElementDescriptor,175    behaviorsByName: BehaviorsByName): ElementDescriptor {176  if (!descriptor.desc && descriptor.type === 'element') {177    descriptor.desc = _findElementDocs(descriptor.is,178                                       descriptor.domModule,179                                       descriptor.scriptElement);180  }181  annotate(descriptor);182  // The `<dom-module>` is too low level for most needs, and it is _not_183  // serializable. So we drop it now that we've extracted all the useful bits184  // from it.185  // TODO: Don't worry about serializability here, provide an API to get JSON.186  delete descriptor.domModule;187  mixinBehaviors(descriptor, behaviorsByName);188  // Descriptors that should have their `desc` properties parsed as JSDoc.189  descriptor.properties.forEach(function(property) {190    // Feature properties are special, configuration is really just a matter of191    // inheritance...192    annotateProperty(property, descriptor.abstract);193  });194  // It may seem like overkill to always sort, but we have an assumption that195  // these properties are typically being consumed by user-visible tooling.196  // As such, it's good to have consistent output/ordering to aid the user.197  descriptor.properties.sort(function(a, b) {198    // Private properties are always last.199    if (a.private && !b.private) {200      return 1;201    } else if (!a.private && b.private) {202      return -1;203    // Otherwise, we're just sorting alphabetically.204    } else {205      return a.name.localeCompare(b.name);206    }207  });208  annotateElementHeader(descriptor);209  return descriptor;210}211/**212 * Annotates behavior descriptor.213 * @param {Object} descriptor behavior descriptor214 * @return {Object} descriptor passed in as param215 */216export function annotateBehavior(217    descriptor:BehaviorDescriptor): BehaviorDescriptor {218  annotate(descriptor);219  annotateElementHeader(descriptor);220  return descriptor;221}222/**223 * Annotates event documentation224 */225function _annotateEvent(descriptor:EventDescriptor): EventDescriptor {226  annotate(descriptor);227  // process @event228  var eventTag = jsdoc.getTag(descriptor.jsdoc, 'event');229  descriptor.name = eventTag ? eventTag.description : "N/A";230  // process @params231  descriptor.params = (descriptor.jsdoc.tags || [])232    .filter(function(tag) {233      return tag.tag === 'param';234    })235    .map(function(tag) {236      return {237        type: tag.type || "N/A",238        desc: tag.description,239        name: tag.name || "N/A"240      };241    });242  // process @params243  return descriptor;244}245/**246 * Annotates documentation found about a Hydrolysis property descriptor.247 *248 * @param {Object} descriptor The property descriptor.249 * @param {boolean} ignoreConfiguration If true, `configuration` is not set.250 * @return {Object} The descriptior that was given.251 */252function annotateProperty(253    descriptor:PropertyDescriptor,254    ignoreConfiguration:boolean): PropertyDescriptor {255  annotate(descriptor);256  if (descriptor.name[0] === '_' || jsdoc.hasTag(descriptor.jsdoc, 'private')) {257    descriptor.private = true;258  }259  if (!ignoreConfiguration &&260      ELEMENT_CONFIGURATION.indexOf(descriptor.name) !== -1) {261    descriptor.private       = true;262    descriptor.configuration = true;263  }264  // @type JSDoc wins265  descriptor.type =266      jsdoc.getTag(descriptor.jsdoc, 'type', 'type') || descriptor.type;267  if (descriptor.type.match(/^function/i)) {268    _annotateFunctionProperty(<FunctionDescriptor>descriptor);269  }270  // @default JSDoc wins271  var defaultTag = jsdoc.getTag(descriptor.jsdoc, 'default');272  if (defaultTag !== null) {273    var newDefault = (defaultTag.name || '') + (defaultTag.description || '');274    if (newDefault !== '') {275      descriptor.default = newDefault;276    }277  }278  return descriptor;279}280function _annotateFunctionProperty(descriptor:FunctionDescriptor) {281  descriptor.function = true;282  var returnTag = jsdoc.getTag(descriptor.jsdoc, 'return');283  if (returnTag) {284    descriptor.return = {285      type: returnTag.type,286      desc: returnTag.description,287    };288  }289  var paramsByName = {};290  (descriptor.params || []).forEach(function(param) {291    paramsByName[param.name] = param;292  });293  (descriptor.jsdoc && descriptor.jsdoc.tags || []).forEach(function(tag) {294    if (tag.tag !== 'param') return;295    var param = paramsByName[tag.name];296    if (!param) {297      return;298    }299    param.type = tag.type || param.type;300    param.desc = tag.description;301  });302}303/**304 * Converts raw features into an abstract `Polymer.Base` element.305 *306 * Note that docs on this element _are not processed_. You must call307 * `annotateElement` on it yourself if you wish that.308 *309 * @param {Array<FeatureDescriptor>} features310 * @return {ElementDescriptor}311 */312export function featureElement(313    features:FeatureDescriptor[]): ElementDescriptor {314  var properties = features.reduce<PropertyDescriptor[]>((result, feature) => {315    return result.concat(feature.properties);316  }, []);317  return {318    type:       'element',319    is:         'Polymer.Base',320    abstract:   true,321    properties: properties,322    desc: '`Polymer.Base` acts as a base prototype for all Polymer ' +323          'elements. It is composed via various calls to ' +324          '`Polymer.Base._addFeature()`.\n' +325          '\n' +326          'The properties reflected here are the combined view of all ' +327          'features found in this library. There may be more properties ' +328          'added via other libraries, as well.',329  };330}331/**332 * Cleans redundant properties from a descriptor, assuming that you have already333 * called `annotate`.334 *335 * @param {Object} descriptor336 */337export function clean(descriptor:Descriptor) {338  if (!descriptor.jsdoc) return;339  // The doctext was written to `descriptor.desc`340  delete descriptor.jsdoc.description;341  delete descriptor.jsdoc.orig;342  var cleanTags:jsdoc.Tag[] = [];343  (descriptor.jsdoc.tags || []).forEach(function(tag) {344    // Drop any tags we've consumed.345    if (HANDLED_TAGS.indexOf(tag.tag) !== -1) return;346    cleanTags.push(tag);347  });348  if (cleanTags.length === 0) {349    // No tags? no docs left!350    delete descriptor.jsdoc;351  } else {352    descriptor.jsdoc.tags = cleanTags;353  }354}355/**356 * Cleans redundant properties from an element, assuming that you have already357 * called `annotateElement`.358 *359 * @param {ElementDescriptor|BehaviorDescriptor} element360 */361export function cleanElement(element:ElementDescriptor) {362  clean(element);363  element.properties.forEach(cleanProperty);364}365/**366 * Cleans redundant properties from a property, assuming that you have already367 * called `annotateProperty`.368 *369 * @param {PropertyDescriptor} property370 */371function cleanProperty(property:PropertyDescriptor) {372  clean(property);373}374/**375 * Parse elements defined only in comments.376 * @param  {comments} Array<string> A list of comments to parse.377 * @return {ElementDescriptor}      A list of pseudo-elements.378 */379export function parsePseudoElements(comments: string[]):ElementDescriptor[] {380  var elements: ElementDescriptor[] = [];381  comments.forEach(function(comment) {382    var parsedJsdoc = jsdoc.parseJsdoc(comment);383    var pseudoTag = jsdoc.getTag(parsedJsdoc, 'pseudoElement', 'name');384    if (pseudoTag) {385      let element: ElementDescriptor = {386        is: pseudoTag,387        type: 'element',388        jsdoc: {description: parsedJsdoc.description, tags: parsedJsdoc.tags},389        properties: [],390        desc: parsedJsdoc.description,391      }392      annotateElementHeader(element);393      elements.push(element);394    }395  });396  return elements;397}398/**399 * @param {string} elementId400 * @param {DocumentAST} domModule401 * @param {DocumentAST} scriptElement The script that the element was402 *     defined in.403 */404function _findElementDocs(405    elementId:string, domModule:dom5.Node, scriptElement:dom5.Node) {406  // Note that we concatenate docs from all sources if we find them.407  // element can be defined in:408  // html comment right before dom-module409  // html commnet right before script defining the module,410  // if dom-module is empty411  var found:string[] = [];412  // Do we have a HTML comment on the `<dom-module>` or `<script>`?413  //414  // Confusingly, with our current style, the comment will be attached to415  // `<head>`, rather than being a sibling to the `<dom-module>`416  var searchRoot = domModule || scriptElement;417  var parents = dom5.nodeWalkAllPrior(searchRoot, dom5.isCommentNode);418  var comment = parents.length > 0 ? parents[0] : null;419  if (comment && comment.data) {420    found.push(comment.data);421  }422  if (found.length === 0) return null;423  return found424    .filter(function(comment) {425      // skip @license comments426      if (comment && comment.indexOf('@license') === -1) {427        return true;428      }429      else {430        return false;431      }432    })433    .map(jsdoc.unindent).join('\n');434}435function _findLastChildNamed(name:string, parent:dom5.Node) {436  var children = parent.childNodes;437  for (var i = children.length - 1; i >= 0; i--) {438    let child = children[i];439    if (child.nodeName === name) return child;440  }441  return null;442}443// TODO(nevir): parse5-utils!444function _getNodeAttribute(node:dom5.Node, name:string) {445  for (var i = 0; i < node.attrs.length; i++) {446    let attr = node.attrs[i];447    if (attr.name === name) {448      return attr.value;449    }450  }...

Es5Binding.ts

Source:Es5Binding.ts

1import * as binding from '../interfaces';2import Binding from '../Binding';3import has from '../../has';4import { getPropertyDescriptor, isEqual, isObject } from '../../util';5/**6 * The Es5Binding class enables two-way binding directly to properties of plain JavaScript objects in EcmaScript 5+7 * environments.8 */9class Es5Binding<T> extends Binding<T> {10	static test(kwArgs: binding.IBindingArguments): boolean {11		if (!has('es5') || !isObject(kwArgs.object) || typeof kwArgs.path !== 'string' ||12			(has('webidl-bad-descriptors') && typeof Node !== 'undefined' && kwArgs.object instanceof Node)13		) {14			return false;15		}16		var descriptor = Object.getOwnPropertyDescriptor(kwArgs.object, kwArgs.path);17		return descriptor ? descriptor.configurable && ('value' in descriptor || 'set' in descriptor) :18			Object.isExtensible(kwArgs.object);19	}20	/**21	 * The bound object.22	 */23	// Uses `any` type since this code uses arbitrary properties24	private _object: any;25	/**26	 * The original property descriptor for the bound object.27	 */28	private _originalDescriptor: PropertyDescriptor;29	/**30	 * The property descriptor generated for this binding.31	 */32	private _ownDescriptor: PropertyDescriptor;33	/**34	 * The name of the property to bind on the source object.35	 */36	private _property: string;37	constructor(kwArgs: binding.IBindingArguments) {38		super(kwArgs);39		var self = this;40		var object: any = kwArgs.object;41		var property = kwArgs.path;42		this._object = object;43		this._property = property;44		// TODO: Improve efficiency by adding a notification overlay to the object so these functions only ever get45		// attached once and additional binding observers can just reuse the same generated data46		var value = object[property];47		var descriptor = this._originalDescriptor = getPropertyDescriptor(object, property);48		var newDescriptor: PropertyDescriptor = {49			enumerable: descriptor ? descriptor.enumerable : true,50			configurable: descriptor ? descriptor.configurable : true51		};52		if (descriptor && (descriptor.get || descriptor.set)) {53			newDescriptor.get = descriptor.get;54			newDescriptor.set = function (newValue: T) {55				// If the binding was destroyed but the descriptor could not be fully removed because someone else56				// replaced it after us, we do not want to perform notifications, just continue to perform the original57				// operation58				if (self.notify) {59					var oldValue: T = descriptor.get ? descriptor.get.call(this) : value;60					if (descriptor.set) {61						descriptor.set.apply(this, arguments);62					}63					else {64						value = newValue;65					}66					if (descriptor.get) {67						newValue = descriptor.get.call(this);68					}69					if (!isEqual(oldValue, newValue)) {70						self.notify({ oldValue: oldValue, value: newValue });71					}72				}73				else if (descriptor.set) {74					descriptor.set.apply(this, arguments);75				}76			};77		}78		else {79			newDescriptor.get = function (): T {80				return value;81			};82			newDescriptor.set = function (newValue: T) {83				var oldValue: T = value;84				value = newValue;85				// If the binding was destroyed but the descriptor could not be fully removed because someone else86				// replaced it after us, we do not want to perform notifications, just continue to perform the original87				// operation88				if (self.notify && !isEqual(oldValue, value)) {89					self.notify({ oldValue: oldValue, value: value });90				}91			};92		}93		Object.defineProperty(object, property, newDescriptor);94		this._ownDescriptor = newDescriptor;95	}96	destroy() {97		super.destroy();98		// We can only replace the property's descriptor with the old one as long as we are in control of the99		// descriptor; if another binding was made to the same property after us, then the descriptor functions will not100		// be ours and we would incorrectly destroy the other bindings. If we are not in control, once `this.notify` is101		// null, our descriptor ends up functioning as a simple pass-through102		var currentDescriptor: PropertyDescriptor = Object.getOwnPropertyDescriptor(this._object, this._property);103		if (currentDescriptor.get === this._ownDescriptor.get && currentDescriptor.set === this._ownDescriptor.set) {104			var descriptor = this._originalDescriptor || {105				value: this._object[this._property],106				writable: true,107				enumerable: true,108				configurable: true109			};110			Object.defineProperty(this._object, this._property, descriptor);111		}112		this._ownDescriptor = this._originalDescriptor = this._object = this._property = this.notify = null;113	}114	get(): T {115		return this._object ? this._object[this._property] : undefined;116	}117	getObject(): {} {118		return this._object;119	}120	set(value: T): void {121		if (this._object) {122			this._object[this._property] = value;123		}124	}125}...

Using AI Code Generation

1import { check, property } from "fast-check";2const isEven = (n: number) => n % 2 === 0;3const isOdd = (n: number) => !isEven(n);4const isEvenArb = fc.integer().filter(isEven);5const isOddArb = fc.integer().filter(isOdd);6describe("isEvenArb", () => {7  it("should only generate even numbers", () => {8    check(property(isEvenArb, isEven), { numRuns: 1000 });9  });10});11describe("isOddArb", () => {12  it("should only generate odd numbers", () => {13    check(property(isOddArb, isOdd), { numRuns: 1000 });14  });15});16import { check, property } from "fast-check";17const isEven = (n: number) => n % 2 === 0;18const isOdd = (n: number) => !isEven(n);19const isEvenArb = fc.integer().filter(isEven);20const isOddArb = fc.integer().filter(isOdd);21describe("isEvenArb", () => {22  it("should only generate even numbers", () => {23    check(property(isEvenArb, isEven), { numRuns: 1000 });24  });25});26describe("isOddArb", () => {27  it("should only generate odd numbers", () => {28    check(property(isOddArb, isOdd), { numRuns: 1000 });29  });30});31import { check, property } from "fast-check";32const isEven = (n: number) => n % 2 === 0;33const isOdd = (n: number) => !isEven(n);34const isEvenArb = fc.integer().filter(isEven);35const isOddArb = fc.integer().filter(isOdd);36describe("isEvenArb", () => {37  it("should only generate even numbers", () => {38    check(property(isEvenArb, isEven), { numRuns: 1000 });39  });40});41describe("isOddArb", () => {42  it("should only generate odd numbers", () => {43    check(property(isOddAr

Using AI Code Generation

1const { describe, it } = require('mocha');2const fc = require('fast-check');3describe('test3', () => {4  it('test3', () => {5    fc.assert(6      fc.property(fc.integer(), fc.integer(), (a, b) => {7        return a + b === b + a;8      }),9    );10  });11});12const { describe, it } = require('mocha');13const fc = require('fast-check');14describe('test4', () => {15  it('test4', () => {16    fc.assert(17      fc.property(fc.integer(), fc.integer(), (a, b) => {18        return a + b === b + a;19      }),20    );21  });22});23const { describe, it } = require('mocha');24const fc = require('fast-check');25describe('test5', () => {26  it('test5', () => {27    fc.assert(28      fc.property(fc.integer(), fc.integer(), (a, b) => {29        return a + b === b + a;30      }),31    );32  });33});34const { describe, it } = require('mocha');35const fc = require('fast-check');36describe('test6', () => {37  it('test6', () => {38    fc.assert(39      fc.property(fc.integer(), fc.integer(), (a, b) => {40        return a + b === b + a;41      }),42    );43  });44});45const { describe, it } = require('mocha');46const fc = require('fast-check');47describe('test7', () => {48  it('test7', () => {49    fc.assert(50      fc.property(fc.integer(), fc.integer(), (a, b) => {51        return a + b === b + a;52      }),53    );54  });55});56const { describe, it } = require('mocha');57const fc = require('fast-check');58describe('test8', () => {

Using AI Code Generation

1const fc = require('fast-check');2const { describe } = require('fast-check');3const { it } = require('fast-check');4describe('My first property-based test', () => {5    it('should always pass', () => {6        fc.assert(fc.property(fc.integer(), fc.integer(), (a, b) => a + b >= a));7    });8});9const fc = require('fast-check');10const { describe } = require('fast-check');11const { it } = require('fast-check');12describe('My first property-based test', () => {13    it('should always pass', () => {14        fc.assert(fc.property(fc.integer(), fc.integer(), (a, b) => a + b >= a));15    });16});17const fc = require('fast-check');18const { describe } = require('fast-check');19const { it } = require('fast-check');20describe('My first property-based test', () => {21    it('should always pass', () => {22        fc.assert(fc.property(fc.integer(), fc.integer(), (a, b) => a + b >= a));23    });24});25const fc = require('fast-check');26const { describe } = require('fast-check');27const { it } = require('fast-check');28describe('My first property-based test', () => {29    it('should always pass', () => {30        fc.assert(fc.property(fc.integer(), fc.integer(), (a, b) => a + b >= a));31    });32});33const fc = require('fast-check');34const { describe } = require('fast-check');35const { it } = require('fast-check');36describe('My first property-based test', () => {37    it('should always pass', () => {38        fc.assert(fc.property(fc.integer(), fc.integer(), (a, b) => a + b >= a));39    });40});41const fc = require('fast-check');42const { describe } = require('fast-check');43const { it } =

Using AI Code Generation

1const { descriptor } = require('fast-check');2const { property } = require('fast-check');3const { arbitrary } = require('fast-check');4const { string } = require('fast-check');5const { array } = require('fast-check');6const { tuple } = require('fast-check');7const { command } = require('fast-check');8const { modelRun } = require('fast-check');9const { assert } = require('fast-check');10const { withCommands } = require('fast-check');11const { withSettings } = require('fast-check');12const { withMaxDepth } = require('fast-check');13const { withMaxSkips } = require('fast-check');14const { withMaxRuns } = require('fast-check');15const { withVerbose } = require('fast-check');16const { withInterruptAfter } = require('fast-check');17const { withRandom } = require('fast-check');18const { withDefaultSeed } = require('fast-check');19const { withSeed } = require('fast-check');20const { withPath } = require('fast-check');21const { withNextArbitrary } = require('fast-check');22const { withNextValue } = require('fast-check');23const { withShrinkableFor } = require('fast-check');24const { withShrunkOnce } = require('fast-check');25const { withLazy } = require('fast-check');26const { withReporters } = require('fast-check');27const { withLogger } = require('fast-check');28const { withPreConstraints } = require('fast-check');29const { withPostConstraints } = require('fast-check');30const { withGlobalConstraints } = require('fast-check');31const { withInterrupt } = require('fast-check');32const { withAsyncModelRun } = require('fast-check');33const { withAsyncBeforeCheckHook } = require('fast-check');34const { withAsyncAfterCheckHook } = require('fast-check');35const { withAsyncBeforeReplayHook } = require('fast-check');36const { withAsyncAfterReplayHook } = require('fast-check');37const { withAsyncBeforeNextHook } = require('fast-check');38const { withAsyncAfterNextHook } = require('fast-check');39const { withAsyncBeforeEndHook } = require('fast-check');40const { withAsyncAfterEndHook } = require('fast-check');41const { withAsyncBeforePathHook } = require('fast-check');42const { withAsyncAfter

Using AI Code Generation

1const { descriptor } = require('fast-check')2const test3 = descriptor({3  body: (t) => {4    t.pass()5  },6})7const { describe } = require('fast-check')8const test1 = require('./test1')9const test2 = require('./test2')10const test3 = require('./test3')11describe('test suite', () => {12  test1()13  test2()14  test3()15})16{17  "scripts": {18  },19  "dependencies": {20  }21}

Using AI Code Generation

1const { check, property, gen } = require('fast-check');2const { descriptor } = gen;3const { string, number, constant } = gen;4const { oneof, tuple, record, array, dictionary, set, option, boolean } = gen;5const { mapToConstant, mapToConstantFromObject } = gen;6const { subarray, subrecord } = gen;7const { frequency } = gen;8const { option: option2, map, filter }

Using AI Code Generation

1const fc = require('fast-check');2const { descriptor } = require('fast-check');3const isString = (s) => typeof s === 'string';4const isNumber = (s) => typeof s === 'number';5const isStringOrNumber = (s) => isString(s) || isNumber(s);6const isStringOrNumberDescriptor = descriptor(isStringOrNumber);7describe('isStringOrNumber', () => {8  it('should not throw on valid values', () => {9    fc.assert(10      fc.property(isStringOrNumberDescriptor, (value) => {11        expect(() => isStringOrNumber(value)).not.toThrow();12      })13    );14  });15  it('should throw on invalid values', () => {16    fc.assert(17      fc.property(fc.anything().filter((v) => !isStringOrNumberDescriptor.is(v)), (value) => {18        expect(() => isStringOrNumber(value)).toThrow();19      })20    );21  });22});23I think you need to import the descriptor function from fast-check-descriptor . I have a PR to fix this in the documentation here:

Using AI Code Generation

1const fc = require('fast-check')2const myRandomNumber = fc.property(3  fc.integer(0, 100),4  fc.integer(0, 100),5  fc.integer(0, 100),6  (a, b, c) => a + b + c >= 07fc.assert(myRandomNumber)8const fc = require('fast-check')9const myRandomNumber = fc.property(10  fc.integer(0, 100),11  fc.integer(0, 100),12  fc.integer(0, 100),13  (a, b, c) => a + b + c >= 014fc.assert(myRandomNumber)15const fc = require('fast-check')16const myRandomNumber = fc.property(17  fc.integer(0, 100),18  fc.integer(0, 100),19  fc.integer(0, 100),20  (a, b, c) => a + b + c >= 021fc.assert(myRandomNumber)22const fc = require('fast-check')23const myRandomNumber = fc.property(24  fc.integer(0, 100),25  fc.integer(0, 100),26  fc.integer(0, 100),27  (a, b, c) => a + b + c >= 028fc.assert(myRandomNumber)29const fc = require('fast-check')30const myRandomNumber = fc.property(31  fc.integer(0, 100),32  fc.integer(0, 100),

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