How do you mock services in Angular tests? ● Provide a mock implementation of the service in TestBed using the providers

rray.

• Use useClass, useValue, or useFactory to inject mocks.

Example:

class MockDataService {

getData() { return of(['mock data']); }

}

beforeEach(() => {

TestBed.configureTestingModule({

providers: [{ provide: DataService, useClass: MockDataService }]

});

});