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How to use TOKEN_CLASS_MOCK method in ng-mocks

Best JavaScript code snippet using ng-mocks

test.spec.ts

Source:test.spec.ts

1import { Injectable, InjectionToken, NgModule } from '@angular/core';2import { MockBuilder, ngMocks } from 'ng-mocks';3@Injectable()4class Class1Service {5  public constructor(public readonly name: string) {}6}7@Injectable()8class Class2Service {9  public readonly name = 'class2';10}11const TOKEN_CLASS_MOCK = new InjectionToken('MOCK');12const TOKEN_CLASS_KEEP = new InjectionToken('KEEP');13@NgModule({14  providers: [15    {16      provide: 'name',17      useValue: 'useValue',18    },19    {20      deps: ['name'],21      provide: Class1Service,22      useClass: Class1Service,23    },24    Class2Service,25    {26      deps: ['name'],27      provide: TOKEN_CLASS_MOCK,28      useClass: Class1Service,29    },30    {31      deps: ['name'],32      provide: TOKEN_CLASS_KEEP,33      useClass: Class2Service,34    },35  ],36})37class TargetModule {}38// fix for jest without jasmine assertions39const assertion: any =40  typeof jasmine === 'undefined' ? expect : jasmine;41// useClass ignores existing services with the same class name, but42// ng-mocks still detects whether the class should be replaced with a mock copy or not.43describe('tokens-class', () => {44  ngMocks.faster();45  beforeEach(() =>46    MockBuilder().mock(TargetModule).keep(Class2Service),47  );48  it('resolves Class1Service as a mock instance', () => {49    const actual = ngMocks.findInstance(Class1Service);50    expect(actual).toEqual(assertion.any(Class1Service));51    expect(actual.name).toBeUndefined();52  });53  it('resolves Class2Service as a real instance', () => {54    const actual = ngMocks.findInstance(Class2Service);55    expect(actual).toEqual(assertion.any(Class2Service));56    expect(actual.name).toEqual('class2');57  });58  it('resolves TOKEN_EXISTING_MOCK as a mock instance', () => {59    const actual = ngMocks.findInstance<any>(TOKEN_CLASS_MOCK);60    expect(actual).toEqual(assertion.any(Class1Service));61    expect(actual.name).toBeUndefined();62  });63  it('resolves TOKEN_EXISTING_KEEP as a real instance', () => {64    const actual = ngMocks.findInstance<any>(TOKEN_CLASS_KEEP);65    expect(actual).toEqual(assertion.any(Class2Service));66    expect(actual.name).toEqual('class2');67  });...

Using AI Code Generation

1import { TOKEN_CLASS_MOCK } from 'ng-mocks';2import { MyService } from './my.service';3import { MyComponent } from './my.component';4describe('MyComponent', () => {5  let component: MyComponent;6  let service: MyService;7  beforeEach(() => {8    TestBed.configureTestingModule({9        {10          useFactory: () => ({11            myMethod: () => 'a',12          }),13        },14    });15    component = TestBed.inject(MyComponent);16    service = TestBed.inject(MyService);17  });18  it('should work', () => {19    spyOn(service, 'myMethod').and.returnValue('b');20    expect(component.myMethod()).toEqual('a');21  });22});23import { Injectable } from '@angular/core';24@Injectable()25export class MyService {26  myMethod() {27    return 'a';28  }29}30import { Component } from '@angular/core';31import { MyService } from './my.service';32@Component({33})34export class MyComponent {35  constructor(private readonly service: MyService) {}36  myMethod() {37    return this.service.myMethod();38  }39}40import { TOKEN_CLASS_MOCK } from 'ng-mocks';41import { MyService } from './my.service';42import { MyComponent } from './my.component';43describe('MyComponent', () => {44  let component: MyComponent;45  let service: MyService;46  beforeEach(() => {47    TestBed.configureTestingModule({48        {49          useFactory: () => ({50            myMethod: () => 'a',51          }),52        },53    });54    component = TestBed.inject(MyComponent);55    service = TestBed.inject(MyService);56  });57  it('should work', () => {58    spyOn(service, 'myMethod').and.returnValue('b');59    expect(component.myMethod()).toEqual('a');60  });61});62import { Injectable } from '@angular/core';63@Injectable()64export class MyService {65  myMethod() {66    return 'a';67  }68}69import { Component } from '@angular/core';70import { MyService } from './my.service';71@Component({

Using AI Code Generation

1import { TOKEN_CLASS_MOCK } from 'ng-mocks';2describe('TestComponent', () => {3  beforeEach(() => {4    TestBed.configureTestingModule({5        {6          useValue: {7            method: () => 'mocked',8          },9        },10    });11  });12  it('should create', () => {13    const fixture = TestBed.createComponent(TestComponent);14    fixture.detectChanges();15    expect(fixture.componentInstance).toBeTruthy();16  });17});18import { TOKEN_CLASS_MOCK } from 'ng-mocks';19describe('TestComponent', () => {20  beforeEach(() => {21    TestBed.configureTestingModule({22        {23          useValue: {24            method: () => 'mocked',25          },26        },27    });28  });29  it('should create', () => {30    const fixture = TestBed.createComponent(TestComponent);31    fixture.detectChanges();32    expect(fixture.componentInstance).toBeTruthy();33  });34});35import { TOKEN_CLASS_MOCK } from 'ng-mocks';36describe('TestComponent', () =>

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