如何在一个实现类中注入两个mockito对象

Question

现在只有一个嘲笑工作正常。另一个返回空指针异常。@Autowired和@Mock都为BCryptPasswordEncoder密码编码器提供空点;

@SpringBootTest
public class UserServiceTests {
    
    @Autowired
    BCryptPasswordEncoder passwordEncoder;
    
    @Mock
    private UserRepository userRepository;
    
    @InjectMocks
    private UserService userService =new UserServiceImpl();
    
    @BeforeEach
    void setUp() throws Exception{
        MockitoAnnotations.initMocks(this);
    }
}

Answer 1

这个为我工作

public class UserServiceTests {
    
    @InjectMocks
    private UserService userService = new UserServiceImpl();
    
    @Mock
    private UserRepository userRepository;
    
    @Mock
    BCryptPasswordEncoder passwordEncoder;
    
    @BeforeEach
    void setUp() throws Exception{
        MockitoAnnotations.initMocks(this);
    }
}

Answer 2

没有可以注入的< code > BCryptPasswordEncoder 的默认实例。所以你不能自动连线。您应该在配置中的某个地方或任何其他地方声明一个Bean。< br >示例:

java prettyprint-override">@Bean
public BCryptPasswordEncoder bCryptPasswordEncoder() {
    return new BCryptPasswordEncoder();
}

Answer 3

如果您想单元测试您的UserServiceImpl类，只需删除@SpringBootTest（它实际上是一个成熟的联调）。以下应该按预期工作：

@ExtendWith(MockitoExtension.class)
public class UserServiceTests {
    
    @Mock
    BCryptPasswordEncoder passwordEncoder;
    
    @Mock
    private UserRepository userRepository;
    
    @InjectMocks
    private UserServiceImpl userService;

    // Your tests
}