Java Mockito：如何通过模拟测试我的服务？
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Mockito: How to test my Service with mocking?
提问by Michael Bavin
I'm new to mock testing.
我是模拟测试的新手。
I want to test my Service method CorrectionService.correctPerson(Long personId).
The implementation is not yet written but this it what it will do:
我想测试我的 Service 方法CorrectionService.correctPerson(Long personId)。实现还没有写，但是它会做什么：
CorrectionServicewill call a method of AddressDAOthat will remove some of the Adressthat a Personhas. One Personhas Many Addresses
CorrectionService将调用的方法AddressDAO，将删除一些的Adress一个Person了。一个Person有很多Addresses
I'm not sure what the basic structure must be of my CorrectionServiceTest.testCorrectPerson.
我不确定我的CorrectionServiceTest.testCorrectPerson.
Also please do/not confirm that in this test i do not need to test if the adresses are actually deleted (should be done in a AddressDaoTest), Only that the DAO method was being called.
另外请不要/不要确认在这个测试中我不需要测试地址是否真的被删除（应该在 a 中完成AddressDaoTest），只需要调用 DAO 方法。
Thank you
谢谢
采纳答案by Daniel
A simplified version of the CorrectionService class (visibility modifiers removed for simplicity).
CorrectionService 类的简化版本（为简单起见，删除了可见性修饰符）。
class CorrectionService {
AddressDao addressDao;
CorrectionService(AddressDao addressDao) {
this.addressDao;
}
void correctPerson(Long personId) {
//Do some stuff with the addressDao here...
}
}
In your test:
在您的测试中：
import static org.mockito.Mockito.*;
public class CorrectionServiceTest {
@Before
public void setUp() {
addressDao = mock(AddressDao.class);
correctionService = new CorrectionService(addressDao);
}
@Test
public void shouldCallDeleteAddress() {
correctionService.correct(VALID_ID);
verify(addressDao).deleteAddress(VALID_ID);
}
}
回答by MariuszS
Cleaner version:
清洁版：
@RunWith(MockitoJUnitRunner.class)
public class CorrectionServiceTest {
private static final Long VALID_ID = 123L;
@Mock
AddressDao addressDao;
@InjectMocks
private CorrectionService correctionService;
@Test
public void shouldCallDeleteAddress() {
//when
correctionService.correct(VALID_ID);
//then
verify(addressDao).deleteAddress(VALID_ID);
}
}
