FlombulatorTestModule.java

@Module
public class FlombulatorTestModule {

    @Provides
    Flumbolator provideTestFlombulator() {
        System.out.println("I the mocked flumbolator have been summoned, behold my mock power");
        Flumbolator flum = Mockito.mock(Flumbolator.class);
        when(flum.frumbolateMe()).thenReturn("flumbolate test");
        return flum;
    }
}