Mocking service that implements OnReady during integration tests

[detroitpro]

I have 1 service that I want to mock during integration testing. The service can take a long time to load and thus I don't want it loaded on each test run.

beforeEach(async () => {
    // bootstrap a new server, configure db to run in memory for tests.
    const b = PlatformTest.bootstrap(Server, {
      typeorm: [
        {
          name: 'default',
          type: 'sqlite',
          database: ':memory:',
          dropSchema: true,
          synchronize: true,
          logging: false,
        },
      ],
    });
    PlatformTest.inject([WorkerService], async (serviceToMock: WorkerService) => {
      const someMock = jest.fn();
      serviceToMock.$onReady = new someMock();
      // await serviceToMock.$onReady();
    });
    await b();
  });
  afterEach(PlatformTest.reset);

  it('should return runtime config', () => {
    const config = PlatformTest.injector.get<PlatformConfiguration>(PlatformConfiguration);
    console.debug(config); // testing throws here due to timeout.
  });

This is what I've tried for mocking the service.

[Romakita]

try this :)

@OverrideProvider(WorkerService)
class MyWorkerService extends WorkerService {
    $onReady() {
       console.log('mocked')
    }
}

beforeEach(() => PlatformTest.bootstrap(Server, {
      typeorm: [
        {
          name: 'default',
          type: 'sqlite',
          database: ':memory:',
          dropSchema: true,
          synchronize: true,
          logging: false,
        },
      ],
    }));
  afterEach(PlatformTest.reset);

  it('should return runtime config', () => {
    const config = PlatformTest.injector.get<PlatformConfiguration>(PlatformConfiguration);
    console.debug(config); // testing throws here due to timeout.
  });