如何使用的Mockito

Question

我想測試fan.setState方法被調用或不

class OffState implements State { 

    @Override 
    public void changeState(Fan fan) { 
     fan.setState(new OnState()); 
    } 

} 

Answer 1

像這樣給出的測試代碼：

@RunWith(MockitoJUnitRunner.class) 
public class OffStateTest { 

    @Mock 
    private Fan fan; 

    @Test 
    public void testChangeState() { 
     //Arrange 
     OffState offState = new OffState(); 

     //Act 
     offState.changeState(fan); 

     //Assert 
     Mockito.verify(fan).setState(Mockito.any(OnState.class)); 
    } 
}