Mockito - Injecting a List of mocks

Question

I have the following code:

@Component 
public class Wrapper
{ 
    @Resource 
    private List strategies;

    public String getName(String          


        

Answer 1

Annotate it with @Spy instead of @Mock. As Mockito cannot spy on an interface, use a concrete implementation, for example ArrayList. During test setup add the mocks to the List spy. This way you do not need to alter your test subject solely for test purposes.

@InjectMocks
private Wrapper testedObject = new Wrapper();

@Spy
private ArrayList mockedStrategies;

@Mock
private StrategyA strategyA;

@Mock
private StrategyB strategyB;

@Before
public void setup() throws Exception {
    mockedStrategies.add(strategyA);
    mockedStrategies.add(strategyB);
}