How do I mock dependencies in Angular tests?

How do I mock dependencies in Angular tests?

To mock dependencies in Angular tests, you can use the TestBed utility to create a testing module with mocked services.

Can you give me an example of how to do that?

Sure! You can create a mock service and provide it in the TestBed configuration like this:

class MockService {
  getData() {
    return of(['mocked data']);
  }
}

TestBed.configureTestingModule({
  providers: [{ provide: RealService, useClass: MockService }]
});

What if I need to mock multiple dependencies?

You can provide multiple mocks in the providers array. Just create mock classes for each dependency and include them all.

Is there a way to verify if the mocked methods were called?

Yes! You can use Jasmine spies to track calls to the mocked methods. For example, you can spy on getData() to check if it was called.