在SpringBootApplicationTest中从应用程序上下文中排除EurekaClient Bean

Question

eureka:
  client:
    enabled: false
[..] # No other configuration part that affects discovery/eureka client

@SpringBootTest
@AutoConfigureMockMvc(addFilters = false)
@Transactional
class FooAPITest {
  
  @Test
  void contextLoads() {
  }

}

但是，我有一个组件，它注入了EurekaClient来从中获取服务实例

@Component
public class ServiceClient {

  @Autowired
  public ServiceClient(@Qualifier("eurekaClient") EurekaClient eurekaClient) {
    URI serviceUri = URI.create(eurekaClient.getNextServerFromEureka("service", false).getHomePageUrl());
  }

}

因此，从这个服务开始，我的应用程序无法加载ApplicationContext。

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.netflix.discovery.EurekaClient' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Qualifier(value="eurekaClient")}
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1695)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1253)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207)
    at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:885)
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:789)
    ... 81 more

到目前为止我所尝试的

@Configuration
class Configuration {
  @Autowired
  EntityManager entityManager;
}

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'javax.persistence.EntityManager' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1695)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1253)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640)
    ... 81 more

@MockBean
ServiceClient serviceClient;

@BeforeEach
void setUp() {
  MockitoAnnotations.initMocks(FooAPITest.class);
}

解决这个问题的恰当方法是什么？

Answer 1

您可以尝试在测试中模拟Eurekaclient:

@SpringBootTest
@AutoConfigureMockMvc(addFilters = false)
@Transactional
class FooAPITest {
  
  @MockBean
  private EurekaClient eurekaClient;
  
  @Test
  void contextLoads() {
  }

}

这将在applicationcontext中创建Eurekaclient作为模拟bean，并将其注入到服务中。

如果您有其他测试来初始化SpringApplicationContext，则可以在要扫描的应用程序包中创建一个单独的配置类（使用@ConditionalOnMissingBean注释来覆盖所有基础）：

@Configuration
public class MockEurekaConfiguration {

  @Bean
  @ConditionalOnMissingBean 
  public EurekaClient eurekaClient() {
    return Mockito.mock(EurekaClient.class);
  }

}