Join Free Webinar: Metrics Magic: Boost software quality with data-driven insights!Register Now Join TestMu Conference

How to use TOKEN_FACTORY2 method in ng-mocks

Best JavaScript code snippet using ng-mocks

test.spec.ts

Source:test.spec.ts

1import { InjectionToken, NgModule } from '@angular/core';2import { MockBuilder, ngMocks } from 'ng-mocks';3const TOKEN_FACTORY1 = new InjectionToken('FACTORY1');4const TOKEN_FACTORY2 = new InjectionToken('FACTORY2');5class DummyClass {}6@NgModule({7  providers: [8    {9      provide: TOKEN_FACTORY1,10      useFactory: () => new DummyClass(),11    },12    {13      provide: TOKEN_FACTORY2,14      useFactory: () => 'hello',15    },16  ],17})18class TargetModule {}19describe('tokens-factory', () => {20  beforeEach(() => MockBuilder().mock(TargetModule));21  // Yes, it is tricky, but we do not have much to do here.22  // If a factory returns something else - it should be replaced with a mock copy manually23  // with a proper value.24  it('mocks TOKEN_FACTORY as an empty object', () => {25    const actual1 = ngMocks.findInstance(TOKEN_FACTORY1);26    expect(actual1).toEqual({});27    const actual2 = ngMocks.findInstance(TOKEN_FACTORY2);28    expect(actual2).toEqual({});29  });...

Using AI Code Generation

1import { TOKEN_FACTORY2 } from 'ng-mocks';2class TestClass {3  constructor(private readonly service: TestService) {}4}5const testFactory = TOKEN_FACTORY2(TestClass, [TestService]);6describe('test', () => {7  let testClass: TestClass;8  beforeEach(() => {9    TestBed.configureTestingModule({10    });11    testClass = TestBed.inject(TestClass);12  });13  it('should work', () => {14    expect(testClass).toBeDefined();15  });16});17import { Injectable } from '@angular/core';18@Injectable()19export class TestService {20  constructor() {}21}22Error: StaticInjectorError(AppModule)[TestClass -> TestService]: 23  StaticInjectorError(Platform: core)[TestClass -> TestService]:

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.