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How to use itProp method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

Validator.ts

Source:Validator.ts

1import { RequiredAttributes } from "./RequiredAttributes"2import { Types } from 'mongoose'3export class Validator{4    //-----------------------------------------------------------------------5    // Statics6    //-----------------------------------------------------------------------7    public static BOOLEAN: string = 'boolean'8    public static NUMBER: string = 'number'9    public static STRING: string = 'string'10    public static OBJECT: string = 'object'11    public static ID: string = 'ObjectId'12    public static FUNCTION: string = 'function'13    //-----------------------------------------------------------------------14    // Auxiliar methods15    //-----------------------------------------------------------------------16    private static getFieldNameMessage(fieldName?: string, defaultName?: string){17        return (fieldName) ? "field " + fieldName : ((defaultName) ? defaultName : "field")18    }19    private static mergeAttributesArray(array1?: string[], array2?: string[]){20        let defArray1: string[] = []21        let defArray2: string[] = []22        if ( array1 ){23            defArray1 = array124        }25        if ( array2 ){26            defArray2 = array227        }28        return [ ...defArray1, ...defArray2 ]29    }30    //-----------------------------------------------------------------------31    // Base methods32    //-----------------------------------------------------------------------33    public static validateUndefinedType(value: any, fieldName?: string): void{34        if ( value === undefined ){35            throw Error("The " + this.getFieldNameMessage(fieldName) + " is undefined")36        }37    }38    public static validateType(value: any, type: string, fieldName?: string): void{39        this.validateUndefinedType(value, fieldName)40        if ( type === this.ID ){41            if ( !(value instanceof Types.ObjectId) ){42                throw Error("The " + this.getFieldNameMessage(fieldName) + " is not a " + type)43            }44        }45        else if ( typeof value !== type ){46            throw Error("The " + this.getFieldNameMessage(fieldName) + " is not a " + type)47        }48    }49    public static validateArrayType(value: any[], type?: string, fieldName?: string): void{50        this.validateUndefinedType(value, fieldName)51        if ( !Array.isArray(value) ){52            throw Error("The " + this.getFieldNameMessage(fieldName, "array") + " is not an array")53        }54        if ( type ){55            try{56                value.map( val => this.validateType(val, type, fieldName) )57            }58            catch(error){59                throw Error("The content of the " + this.getFieldNameMessage(fieldName, "array") + " is not an array of type: " + type )60            }61        }62    }63    public static validateDateType(value: any, fieldName?: string){64        this.validateUndefinedType(value, fieldName)65        if ( !(value instanceof Date) ){66            throw Error("The " + this.getFieldNameMessage(fieldName, "Date") + " is not a date")67        }68    }69    public static validateDateTypeOrCast(value: any, fieldName?: string): Date{70        try{71            this.validateDateType(value, fieldName)72            return value73        }74        catch(error){75            value = new Date( value )76            if ( isNaN(value.getTime()) ){77                throw Error("The " + this.getFieldNameMessage(fieldName, "Date") + " is not a date")78            }79            return value80        }81    }82    //-----------------------------------------------------------------------83    // Short access methods84    //-----------------------------------------------------------------------85    public static validateStringType(value: any, fieldName?: string): void{86        this.validateType(value, this.STRING, fieldName)87    }88    public static validateNumberType(value: any, fieldName?: string): void{89        this.validateType(value, this.NUMBER, fieldName)90    }91    public static validateBooleanType(value: any, fieldName?: string): void{92        this.validateType(value, this.BOOLEAN, fieldName)93    }94    public static validateIdType(value: any, fieldName?: string): void{95        this.validateType(value, this.ID, fieldName)96    }97    public static validateInstanceOfClass(instance: any, Class: any, acceptMoreProperties: boolean){98        this.validateClassAttributes(instance, Class.REQUIRED_ATTRIBUTES, acceptMoreProperties, Class.name)99    }100    //-----------------------------------------------------------------------101    // Deep validation methods102    //-----------------------------------------------------------------------103    104    public static validateNumberInRange(value: number, minVal: number, maxVal: number, fieldName?: string): void{105        this.validateNumberType(value, fieldName)106        if ( (maxVal && value > maxVal) || (minVal && value < minVal) ){107            throw Error("The " + this.getFieldNameMessage(fieldName) + " is not in the allowed range [" + 108                minVal + " - " + maxVal + "]")109        }110    }111    //-----------------------------------------------------------------------112    // Properties count validation methods113    //-----------------------------------------------------------------------114    115    public static validateMinimumRequiredProperties(object: any, properties: string[], fieldName?: string){116        const objectProperties: string[] = Object.keys(object)117        properties.forEach( itProp =>{118            if ( !objectProperties.includes( itProp ) ){119                throw new Error("The " + this.getFieldNameMessage(fieldName, "object") + " does not have " + 120                    "the [" + itProp + "] property")121            }122        })123    }124    public static validateStrictRequiredProperties(object: any, properties: string[], fieldName?: string){125        this.validateMinimumRequiredProperties(object, properties, fieldName)126        if ( Object.keys(object).length !== properties.length ){127            throw Error("The " + this.getFieldNameMessage(fieldName, "object") + " has more properties than " +128                "allowed")129        }130    }131    public static validateRequiredAndOptionalProperties(object: any, properties: string[], optionals: string[], fieldName?: string){132        this.validateMinimumRequiredProperties(object, properties, fieldName)133        const objectProperties: string[] = Object.keys(object)134        objectProperties.forEach( itProp => {135            if ( !properties.includes(itProp) && !optionals.includes(itProp) ){136                throw new Error( "The [" + itProp + "] property is not allowed in the " 137                    + this.getFieldNameMessage(fieldName, "object") )138            }139        })140    }141    //-----------------------------------------------------------------------142    // validation methods of the model classes143    //-----------------------------------------------------------------------144    public static validateCustomArray(array: any[], fieldName?: string){145        this.validateUndefinedType(array, fieldName)146        array.map( e => e.validate() )147    }148    public static validateCustomType(value: any, fieldName?: string){149        this.validateUndefinedType(value, fieldName)150        value.validate()151    }152    public static validateClassAttributes(instance: any, attributes: RequiredAttributes, acceptMoreProperties: boolean, className?: string){153        if (attributes.booleans ){154            attributes.booleans.forEach( e => this.validateBooleanType(instance[e], e) )155        }156        if (attributes.numbers ){157            attributes.numbers.forEach( e => this.validateNumberType(instance[e], e) )158        }159        if (attributes.strings ){160            attributes.strings.forEach( e => this.validateStringType(instance[e], e) )161        }162        if (attributes.ids ){163            attributes.ids.forEach( e => this.validateIdType(instance[e], e) )164        }165        if (attributes.customTypes ){166            attributes.customTypes.forEach( e => instance[e].validate() )167        }168        if (attributes.customArrays ){169            attributes.customArrays.forEach( e => this.validateCustomArray(instance[e], e) )170        }    171        if (attributes.otherTypes ){172            attributes.otherTypes.forEach( e => this.validateUndefinedType(instance[e], e) )173        }174        if (attributes.dates ){175            attributes.dates.forEach( e => instance[e] = this.validateDateTypeOrCast(instance[e], e) )176        }177        if (attributes.numberArrays ){178            attributes.numberArrays.forEach( e => this.validateArrayType(instance[e], this.NUMBER, e) )179        }180        if (attributes.stringArrays ){181            attributes.stringArrays.forEach( e => this.validateArrayType(instance[e], this.STRING, e) )182        }183        if (attributes.idArrays ){184            attributes.idArrays.forEach( e => this.validateArrayType(instance[e], this.ID, e) )185        }186        //@ts-ignore187        let requiredAttributes = [...Object.keys( attributes ).map( (it: string) => (it !== 'optionals' ? attributes[it] : []))]188        requiredAttributes = requiredAttributes.reduce( (tot, curr) => tot.concat(curr) )189        if ( !acceptMoreProperties && attributes.optionals && attributes.optionals.length > 0 ){190            this.validateRequiredAndOptionalProperties(instance, requiredAttributes, attributes.optionals, className)191        }192        else if ( !acceptMoreProperties ){193            this.validateStrictRequiredProperties(instance, requiredAttributes, className)194        }195    }196    public static mergeRequiredAttributes(base: RequiredAttributes, other: RequiredAttributes): RequiredAttributes{197        return {198            booleans: this.mergeAttributesArray(base.booleans, other.booleans),199            customArrays: this.mergeAttributesArray(base.customArrays, other.customArrays),200            customTypes: this.mergeAttributesArray(base.customTypes, other.customTypes),201            dates: this.mergeAttributesArray(base.dates, other.dates),202            numbers: this.mergeAttributesArray(base.numbers, other.numbers),203            otherTypes: this.mergeAttributesArray(base.otherTypes, other.otherTypes),204            strings: this.mergeAttributesArray(base.strings, other.strings),205            stringArrays: this.mergeAttributesArray(base.stringArrays, other.stringArrays),206            numberArrays: this.mergeAttributesArray(base.numberArrays, other.numberArrays),207            optionals: this.mergeAttributesArray(base.optionals, other.optionals),208            ids: this.mergeAttributesArray(base.ids, other.ids),209            idArrays: this.mergeAttributesArray(base.idArrays, other.idArrays),210        }211    }...

itProp.spec.ts

Source:itProp.spec.ts

...5    setTimeout(() => resolve(), duration);6  });7describe('itProp', () => {8  // itProp9  itProp('should pass on truthy synchronous property', [fc.string(), fc.string(), fc.string()], (a, b, c) => {10    return `${a}${b}${c}`.includes(b);11  });12  itProp('should pass on truthy asynchronous property', [fc.nat(), fc.string()], async (a, b) => {13    await delay(0);14    return typeof a === 'number' && typeof b === 'string';15  });16  itProp('should fail on falsy synchronous property', [fc.boolean()], (a) => a);17  itProp('should fail on falsy asynchronous property', [fc.nat()], async (a) => {18    await delay(0);19    return typeof a === 'string';20  });21  itProp('should fail with seed=4242 and path="25"', [fc.constant(null)], (_unused) => false, {22    seed: 4242,23    path: '25',24  });25  // itProp.skip26  itProp.skip('should never be executed', [fc.boolean()], (a) => a, { seed: 48 });27  // itProp.failing28  itProp.failing('should fail because passing', [fc.boolean()], (_a) => true, { seed: 48 });29  // itProp.concurrent30  itProp.concurrent('should fail for concurrent', [fc.boolean()], (_a) => false, { seed: 4848 });31  // itProp.concurrent.failing32  itProp.concurrent.failing('should fail for concurrent because passing', [fc.boolean()], (_a) => true, { seed: 4848 });...

Using AI Code Generation

1const { itProp, fc } = require('fast-check');2itProp('should be commutative', [fc.integer(), fc.integer()], (a, b) => {3  return a + b === b + a;4});5itProp('should be associative', [fc.integer(), fc.integer(), fc.integer()], (a, b, c) => {6  return (a + b) + c === a + (b + c);7});

Using AI Code Generation

1const { itProp } = require('fast-check');2itProp('test', () => {3  return true;4});5const { itProp } = require('fast-check');6itProp('test', () => {7  return true;8});9const { itProp } = require('fast-check');10itProp('test', () => {11  return true;12});13const { itProp } = require('fast-check');14itProp('test', () => {15  return true;16});17const { itProp } = require('fast-check');18itProp('test', () => {19  return true;20});21const { itProp } = require('fast-check');22itProp('test', () => {23  return true;24});25const { itProp } = require('fast-check');26itProp('test', () => {27  return true;28});29const { itProp } = require('fast-check');30itProp('test', () => {31  return true;32});33const { itProp } = require('fast-check');34itProp('test', () => {35  return true;36});37const { itProp } = require('fast-check');38itProp('test', () => {39  return true;40});41const { itProp } = require('fast-check');42itProp('test', () => {43  return true;44});45const { it

Using AI Code Generation

1import { itProp } from 'fast-check-monorepo';2itProp('should always pass', fc.property(fc.nat(), (n) => {3  expect(n).toBeGreaterThanOrEqual(0);4}));5{6  "dependencies": {7  }8}

Using AI Code Generation

1const { itProp } = require('fast-check-monorepo');2itProp('should be a multiple of 3', [fc.integer()], (x) => {3  return x % 3 === 0;4});5const { itProp } = require('fast-check');6itProp('should be a multiple of 3', [fc.integer()], (x) => {7  return x % 3 === 0;8});9const { itProp } = require('fast-check');10itProp('should be a multiple of 3', [fc.integer()], (x) => {11  return x % 3 === 0;12});13const { itProp } = require('fast-check');14itProp('should be a multiple of 3', [fc.integer()], (x) => {15  return x % 3 === 0;16});17const { itProp } = require('fast-check');18itProp('should be a multiple of 3', [fc.integer()], (x) => {19  return x % 3 === 0;20});21const { itProp } = require('fast-check');22itProp('should be a multiple of 3', [fc.integer()], (x) => {23  return x % 3 === 0;24});25const { itProp } = require('fast-check');26itProp('should be a multiple of 3', [fc.integer()], (x) => {27  return x % 3 === 0;28});29const { itProp } = require('fast-check');30itProp('should be a multiple of 3', [fc.integer()], (x) => {31  return x % 3 === 0;32});33const { itProp } = require('fast-check');34itProp('should be a multiple of 3', [fc.integer()], (x) => {35  return x % 3 === 0;36});37const { itProp } = require('fast-check');38itProp('should be a multiple

Using AI Code Generation

1const fc = require('fast-check');2const itProp = require('fast-check-monorepo/lib/src/jest/itProp');3itProp('should ...', fc.property(fc.anything(), fc.anything(), (a, b) => {4}));5module.exports = {6};7module.exports = {8};9require('fast-check-monorepo/lib/src/jest/setupTests.js');10module.exports = {11};12require('fast-check-monorepo/lib/src/jest/setupTests.js');13module.exports = {14};15require('fast-check-monorepo/lib/src/jest/setupTests.js');

Using AI Code Generation

1const { itProp } = require('fast-check-monorepo');2itProp('should work', fc.property(fc.integer(), (i) => {3  return i === i;4}));5const { itProp } = require('fast-check');6itProp('should work', fc.property(fc.integer(), (i) => {7  return i === i;8}));9const { itProp } = require('fast-check-monorepo');10itProp('should work', fc.property(fc.integer(), (i) => {11  return i === i;12}));

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