@mockbean-在方法注入之前通过@autowire使用的实例

Question

在我的JUNIT5-test中，我想通过@mockbean模拟一个bean。在my@beforeech-method中，调用被注入。但是其他bean@autowire-ing@mockbean在方法注入之前用@mockbean实例化。这很奇怪，给了我NPES。在使用@mockbean之前，我如何强制方法注入？

@SpringBootTest
@ExtendWith(SpringExtension.class)
@ContextConfiguration("classpath:context/authenticationStaff.xml")
@EnableAutoConfiguration
public class PasswordPolicyServiceTest {

    private final List<Reference> bcryptDigestRefs = new ArrayList<>();
    private final DigestHistoryRule bcryptDigestRule = new DigestHistoryRule(new BCryptHashBean());
    @MockBean
    private SystemConfiguration systemConfiguration; 

    @BeforeEach
    public void initMock() {
        MockitoAnnotations.initMocks(this);
        Arrays.asList(SystemConfigKey.values()).forEach(key -> {
            Mockito.when(systemConfiguration.getConfig(key)).thenReturn(getConfig(key, key.getDefaultValue()));
        });
        Mockito.when(systemConfiguration.getConfig(SystemConfigKey.MIN_PASSWORD_LENGTH)).thenReturn(getConfig(SystemConfigKey.MIN_PASSWORD_LENGTH, "5"));

不及格的班级是：

@Service
public class SessionCacheManager {


    private final Ehcache ehCache;

    private final Cache<String, SessionVerificationType> sessionCache;

    private final SystemConfiguration systemConfiguration;

    @Autowired
    public SessionCacheManager(final Ehcache ehCache, final SystemConfiguration systemConfiguration) {
        this.ehCache=ehCache;
        this.systemConfiguration=systemConfiguration;
        SystemConfigType systemConfig = systemConfiguration.getConfig(SystemConfigKey.SESSION_MAX_NUMBER);
        Integer numberOfParalledSessions = systemConfig.getIntegerValue();
        CacheManager cacheManager=ehCache.registerNewCacheManager(CACHE_MANAGER);
        sessionCache = cacheManager.createCache(CACHE_NAME, 
                CacheConfigurationBuilder.newCacheConfigurationBuilder(String.class, SessionVerificationType.class, ResourcePoolsBuilder.heap(numberOfParalledSessions)));
    }

正如我所看到的（使用调试），“SessionCacheManager”使用模拟的“SystemConfiguration”但是SystemConfiguration.getConfig(SystemConfigKey.session_max_number)；返回空值。

Answer 1

我帮助了自己，尽管我不喜欢我的解决方案。与其说是解决办法，不如说是一种把戏。但我现在想不出别的了。

我将@ContextConfiguration更改为：

@ContextConfiguration(locations = "/context/authenticationStaff.xml", classes = { SpringApplicationContext.class })

XML被设置为不能自动检测类“SystemConfiguration.class”。与此相反，“SpringApplicationContext.class”将“SystemConfiguration.class”作为模拟bean提供。

@Configuration
public class SpringApplicationContext {

    @Mock
    private SystemConfiguration mockedSystemConfiguration;

    @Bean
    public SystemConfiguration systemConfiguration() {
        MockitoAnnotations.initMocks(this);
        Arrays.asList(SystemConfigKey.values()).forEach(key -> {
            Mockito.when(mockedSystemConfiguration.getConfig(key)).thenReturn(getConfig(key, key.getDefaultValue()));
        });
        Mockito.when(mockedSystemConfiguration.getConfig(SystemConfigKey.MIN_PASSWORD_LENGTH)).thenReturn(getConfig(SystemConfigKey.MIN_PASSWORD_LENGTH, "5"));
        Mockito.when(mockedSystemConfiguration.getConfig(SystemConfigKey.PASSWORD_BCRYPTENCODER_COSTFACTOR)).thenReturn(getConfig(SystemConfigKey.PASSWORD_BCRYPTENCODER_COSTFACTOR, "5"));
        return mockedSystemConfiguration;
    }

    private SystemConfigType getConfig(SystemConfigKey key, String value) {
        SystemConfigType config = new SystemConfigType();
        config.setKey(key);
        config.setValue(value); 
        return config;
    }

测试代码现在如下所示：

@SpringBootTest
@ExtendWith(SpringExtension.class)
@ContextConfiguration(locations = "/context/authenticationStaff.xml", classes = { SpringApplicationContext.class })
@EnableAutoConfiguration
public class PasswordPolicyServiceTest {

    @Autowired 
    private PasswordPolicyService passwordPolicyService;
    @Autowired 
    private PasswordHandlerService passwordHandlerService;
    @Autowired
    private SystemConfiguration systemConfiguration;

    private final List<Reference> bcryptDigestRefs = new ArrayList<>();

    private final DigestHistoryRule bcryptDigestRule = new DigestHistoryRule(new BCryptHashBean());

    @BeforeEach
    public void initMock() {
        MockitoAnnotations.initMocks(this);
        String password=passwordHandlerService.getPassword("my$Password");
        bcryptDigestRefs.add(
                new HistoricalReference(
                        "bcrypt-history",
                        password));
    }

这很有效，但不是一个好的解决方案。非常欢迎其他建议。