spring - 如何编写断言以确保为 AOP spring 类捕获我的异常
问题描述
我正在尝试为此类编写一些测试,这些测试应该捕获异常并记录它们。但是,当我运行测试时,它们失败了。我的测试如下所示。我不太确定应该如何编写测试,我只是在这里展示了我的尝试。我想要实现的是确保我设置的方面通过执行 JUnit 断言来捕获异常。我也知道切入点匹配了正确的方法,因为当我单击 IDE 左侧的符号时,IntelliJ IDEA 会跳转到切入点匹配的方法。我的测试是否有意义,因为我是为 AOP 编写测试的新手?此外,在运行测试时不会调用方面。
interface UserSearch {
User findUser(long userId);
// ...
}
@Service
public class UserSearchImpl implements UserSearch{
UserRepository userRepository;
@Autowired
UserSearchImpl(UserRepository userRepository){
this.userRepository = userRepository;
}
public User findUser(long userId){
User user = userRepository.findById(userId);
if(Objects.isNull(user))){
throw new UserNotFoundException("User with id "+userId);
}
}
}
@Aspect
@Component
public class UserSearchAspect {
@AfterThrowing(
pointcut = "execution(* com.isf.services.findUser(..))",
throwing = "userNotFoundException"
)
public void logForUser(JoinPoint joinPoint , UserNotFoundException userNotFoundException)
{
}
}
@ExtendWith({SpringExtension.class , MockitoExtension.class})
@SpringBootTest
public class UserSearchAspectTest {
@MockBean
UserRepository userRepository;
UserSearch userSearch;
UserSearch proxyService;
@BeforeEach
public void setup(){
userSearch = new UserSearchImpl(userRepository);
AspectJProxyFactory factory = new AspectJProxyFactory();
factory.setTarget(userSearch);
factory.addAspectUserSearchAspect.class);
proxyService = factory.getProxy();
}
@Test //this passes
public void test(){
assertTrue(AopUtils.isAopProxy(proxyService));
}
@Test
public void testSome(){
when(userRepository.findById(123L))
.thenThrow(new UserNotFoundException("User not found "+123));
/// How do I assert the exception is caught??
}
}
解决方案
以下测试代码可用于验证
- 建议被触发
- 未找到用户异常
希望这可以帮助
import static org.junit.jupiter.api.Assertions.*;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import org.aspectj.lang.JoinPoint;
import org.junit.jupiter.api.Test;
import org.mockito.ArgumentCaptor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.mock.mockito.MockBean;
import org.springframework.boot.test.mock.mockito.SpyBean;
@SpringBootTest
class UserSearchTest {
@MockBean
UserRepository repository;
@Autowired
UserSearch search;
@SpyBean
UserSearchAspect aspect;
@Test
void test() {
UserNotFoundException unfEx = new UserNotFoundException("User not found " + 123);
when(repository.findById(123L)).thenThrow(unfEx);
Exception exception = assertThrows(UserNotFoundException.class, () -> {
search.findUser(123L);
});
String expectedMessage = "User not found 123";
// Verify the exception message
assertTrue(exception.getMessage().contains(expectedMessage));
ArgumentCaptor<JoinPoint> arg1 = ArgumentCaptor.forClass(JoinPoint.class);
ArgumentCaptor<UserNotFoundException> arg2 = ArgumentCaptor.forClass(UserNotFoundException.class);
// Verify the aspect on exception
verify(aspect, times(1)).logForUser(arg1.capture(), arg2.capture());
assertTrue(arg2.getValue().getMessage().contains(expectedMessage));
}
}
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