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How to use mockOf method in ng-mocks

Best JavaScript code snippet using ng-mocks

utils.spec.ts

Source:utils.spec.ts

1import { isPrimitive, isUndefined , uuidv4, isArray, isBoolean, isNull, isNullOrUndefined, isNumber, isString, isSymbol, isRegExp, isObject, isDate, isError, isFunction, from, select, of } from "../utils";23describe('util function collection', () => {45  it('uuidv4', () => {6    const u1 = uuidv4();7    const u2 = uuidv4();8    expect(u1).not.toEqual(u2);9  });1011  it('isArray', () => {12    expect(isArray([])).toBeTruthy();13  });1415  it('isBoolean', () => {16    expect(isBoolean(false)).toBeTruthy();17  });1819  it('isNull', () => {20    expect(isNull(null)).toBeTruthy();21  });2223  it('isNullOrUndefined', () => {24    expect(isNullOrUndefined(null)).toBeTruthy();25  });2627  it('isNumber', () => {28    expect(isNumber(0)).toBeTruthy();29    expect(isNumber(NaN)).toBeTruthy();30    expect(isNumber('')).toBeFalsy();31  });3233  it('isString', () => {34    expect(isString('')).toBeTruthy();35    expect(isString(42)).toBeFalsy();36  });3738  it('isSymbol', () => {39    expect(isSymbol(Symbol())).toBeTruthy();40  });4142  it('isUndefined', () => {43    expect(isUndefined(undefined)).toBeTruthy();44  });4546  it('isRegExp', () => {47    expect(isRegExp(/Test/i)).toBeTruthy();48  });4950  it('isObject', () => {51    expect(isObject({})).toBeTruthy();52  });5354  it('isDate', () => {55    expect(isDate(new Date())).toBeTruthy();56  });5758  it('isError', () => {59    const err = new Error();60    expect(isError(err)).toBeTruthy();61  });6263  it('isFunction', () => {64    function test(){}65    expect(isFunction(test)).toBeTruthy();66  });6768  it('isPrimitive', () => {69    expect(isPrimitive(null)).toBeTruthy();70    expect(isPrimitive('boolean')).toBeTruthy();71    expect(isPrimitive('number')).toBeTruthy();72    expect(isPrimitive('string')).toBeTruthy();73    expect(isPrimitive('symbol')).toBeTruthy();74    expect(isPrimitive('undefined')).toBeTruthy();75  });7677  describe('function of', () => {78    it('simple', () => {79      function test() { }80      const result = `@@${test.name}@@`;81      expect(result).toEqual('@@test@@');82    });8384    it('class', () => {85      class MockOf {86        name: string = '';87      }88      const result = of<MockOf>(o => o.name);89      expect(result).toEqual('@@name@@');90    });9192    it('class', () => {93      class MockOf {94        name: string = '';95      }96      const result = of<MockOf>(MockOf);97      expect(result).toEqual('@@MockOf@@');98    });99  });100101  it('from', () => {102    const data = [];103    expect(from(data)).toMatch('[]');104  });105106  it('select', () => {107    class MockModel {108      name: string = 'test';109    }110    expect(select<MockModel>((d) => d.name)).toMatch('@@name@@');111  });112
...

voices.test.ts

Source:voices.test.ts

2import fakeVoice from '../../test/helpers/fakeVoice'3import { getUSEnglishVoice } from './voices'4describe('getUSEnglishVoice', () => {5  it('returns nothing given no voices', () => {6    mockOf(speechSynthesis.getVoices).mockReturnValue([])7    expect(getUSEnglishVoice()).toBeUndefined()8  })9  it('never returns non-local voices', () => {10    mockOf(speechSynthesis.getVoices).mockReturnValue([11      fakeVoice({ localService: false, name: 'Google US English' }),12    ])13    expect(getUSEnglishVoice()).toBeUndefined()14  })15  it.each([16    'cmu_us_slt_arctic_hts festival',17    'cmu_us_slt_arctic_clunits festival',18  ])('prefers the CMU voice "%s"', (name) => {19    mockOf(speechSynthesis.getVoices).mockReturnValue([20      // Preferred over default21      fakeVoice({ default: true }),22      // Preferred over US English23      fakeVoice({ name: 'US English' }),24      // Preferred over English25      fakeVoice({ name: 'English' }),26      // Preferred over lang matches27      fakeVoice({ lang: 'en-US' }),28      fakeVoice({ name }),29    ])30    expect(getUSEnglishVoice()?.name).toBe(name)31  })32  it('prefers US English to UK English', () => {33    mockOf(speechSynthesis.getVoices).mockReturnValue([34      fakeVoice({ name: 'Google UK English' }),35      fakeVoice({ name: 'Google US English' }),36    ])37    expect(getUSEnglishVoice()?.name).toBe('Google US English')38  })39  it('prefers en-US over en', () => {40    mockOf(speechSynthesis.getVoices).mockReturnValue([41      fakeVoice({ lang: 'en' }),42      fakeVoice({ lang: 'en-US' }),43    ])44    expect(getUSEnglishVoice()?.lang).toBe('en-US')45  })46  it('prefers en over en-GB', () => {47    mockOf(speechSynthesis.getVoices).mockReturnValue([48      fakeVoice({ lang: 'en-GB' }),49      fakeVoice({ lang: 'en' }),50    ])51    expect(getUSEnglishVoice()?.lang).toBe('en')52  })53  it('falls back to the default if there is one', () => {54    mockOf(speechSynthesis.getVoices).mockReturnValue([55      fakeVoice({ lang: 'af', default: false }),56      fakeVoice({ default: true }),57      fakeVoice({ name: 'Google æ®éè¯ï¼ä¸å½å¤§éï¼', default: false }),58    ])59    expect(getUSEnglishVoice()?.default).toBe(true)60  })61  it('falls back to the first one if none match or are the default', () => {62    mockOf(speechSynthesis.getVoices).mockReturnValue([63      fakeVoice({ lang: 'af', default: false }),64      fakeVoice({ name: 'Google æ®éè¯ï¼ä¸å½å¤§éï¼', default: false }),65    ])66    expect(getUSEnglishVoice()?.lang).toBe('af')67  })...

mock-proxy.ts

Source:mock-proxy.ts

1// ReturnType maps a function type to the type that function returns, or any if no return type can be inferred2type ReturnType<T> = T extends (...args: any[]) => infer R ? R : any;3// MockOf maps function types to a jest mock that wrap that function's return type, and non-function types to themself4type MockOf<T> = T extends Function ? jest.Mock<ReturnType<T>, any> : T;5// Turn all functions in a given type into mocks of those functions. Leave non-functions unnaffected6export type MockProxy<T> = { [TP in keyof T]: MockOf<T[TP]> };7export function MockProxy<T>(withBase: Partial<T> = {}): MockProxy<T> {8    const handler = {9        // Angular uses '$quoted$' in the module compiler to find quoted properties10        // We don't need to worry about that here it just needs to be iterable11        get: (obj: any, prop: string) => prop === '$quoted$' ? [] : obj[prop] || (obj[prop] = jest.fn())12    };13    return new Proxy(withBase, handler);...

Using AI Code Generation

1var mockOf = require('ng-mocks-universal').mockOf;2describe('Test', () => {3    it('should create', () => {4        const service = mockOf(ExampleService);5        expect(service).toBeTruthy();6    });7});8import 'ng-mocks-universal';

Using AI Code Generation

1import { mockOf } from 'ng-mocks';2import { MyService } from './my-service';3const myServiceMock = mockOf(MyService);4myServiceMock.myMethod.and.returnValue('Mocked Value');5import { Injectable } from '@angular/core';6@Injectable()7export class MyService {8  myMethod() {9    return 'Real Value';10  }11}12import { mockOf } from 'ng-mocks';13import { MyService } from './my-service';14const myServiceMock = mockOf(MyService);15myServiceMock.myMethod.mockImplementation(() => 'Mocked Value');16import { Injectable } from '@angular/core';17@Injectable()18export class MyService {19  myMethod() {20    return 'Real Value';21  }22}23import { mockOf } from 'ng-mocks';24import { MyService } from './my-service';25const myServiceMock = mockOf(MyService);26myServiceMock.myMethod.mockImplementation(() => 'Mocked Value');

Using AI Code Generation

1import { mockOf } from 'ng-mocks';2const mockService = mockOf(Service);3mockService.method();4import { mockOf } from 'ng-mocks';5const mockService = mockOf(Service, { method: () => 'mocked' });6mockService.method();7import { mockOf } from 'ng-mocks';8const mockService = mockOf(Service, { method: () => 'mocked' });9mockService.method();10import { mockOf } from 'ng-mocks';11const mockService = mockOf(Service, { method: () => 'mocked' });12mockService.method();13import { mockOf } from 'ng-mocks';14const mockService = mockOf(Service, { method: () => 'mocked' });15mockService.method();16import { mockOf } from 'ng-mocks';17const mockService = mockOf(Service, { method: () => 'mocked' });18mockService.method();19import { mockOf } from 'ng-mocks';20const mockService = mockOf(Service, { method: () => 'mocked' });21mockService.method();22import { mockOf } from 'ng-mocks';23const mockService = mockOf(Service, { method: () => 'mocked' });24mockService.method();25import { mockOf } from 'ng-mocks';26const mockService = mockOf(Service, { method: () =>

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