Testing Mosby with Mockito

Question

I'm using Mosby and I would like to test my simple presenter.

public class DetailsPresenter extends MvpBasePresenter<DetailsView> {

public void showCountry(Country country) {
    getView().setTitle(country.getName());
    getView().setFlag(country.getFlagUrl());
}

}

I've tried to solve it by mocking Presenter:

public class DetailsPresenterTest {

private DetailsPresenter mockPresenter;
private DetailsView mockView;

@Before
public void setUp() throws Exception {
    mockPresenter = mock(DetailsPresenter.class);
    mockView = mock(DetailsView.class);

    when(mockPresenter.isViewAttached()).thenReturn(true);
    when(mockPresenter.getView()).thenReturn(mockView);

    doCallRealMethod().when(mockPresenter).showCountry(any(Country.class));
}

@Test
public void shouldShowFlag() throws Exception {
    mockPresenter.showCountry(any(Country.class));
    verify(mockView, times(1)).setFlag(anyString());
}

@Test
public void shouldShowName() throws Exception {
    mockPresenter.showCountry(any(Country.class));
    verify(mockView, times(1)).setTitle(anyString());
}

}

But I've got the error

    Wanted but not invoked:
detailsView.setFlag(<any string>);
-> at eu.szwiec.countries.details.DetailsPresenterTest.shouldShowFlag(DetailsPresenterTest.java:39)
Actually, there were zero interactions with this mock.

I've tried to use also real presenter without a success.

Answer 1

you have to use real Presenter and a real country object to invoke showCountry(). Everything else doesnt make sense (not testing the real presenter but a mock presenter instance).

@Test
public void showFlagAndName(){
   DetailsView mockView = mock(DetailsView.class);
   DetailsPresenter presenter = new DetailsPresenter();
   Country country = new Country("Italy", "italyFlag");

   presenter.attachView(mockView);

   presenter.showCountry(country);

   verify(mockView, times(1)).showCountry("Italy");
   verify(mockView, times(1)).setFlag("italyFlag");
}