org.mockito.exceptions.base.MockitoException：检查的异常对此方法无效

Question

我正在尝试使用带有 spring boot 2.6.2 的 junit5 来测试服务层，并且我想测试如果找不到帐户则抛出异常，

我写了下面的测试方法

@Test
    void getUserAccountWithUserAccountNotFoundExceptionTest() {
        /**
         * TODO tried to to test it but getting this error
         * Checked exception is invalid for this method
         */
        when(this.systemUserRepository.findByEmailAddress(emailAddress)).thenThrow(UserAccountNotFoundException.class);
        Assertions.assertThrows(UserAccountNotFoundException.class, ()->{
            this.manageUserAccountService.getUserAccount(emailAddress);
        });
    }

服务实施片段 @服务 公共类 ManageUserAccountServiceImpl { ......
@覆盖 公共 UserAccountDto getUserAccount(String emailAddress) 抛出 UserAccountNotFoundException { ...... ………… } ………… }

未找到用户帐户异常类

public class UserAccountNotFoundException extends UserAccountException {

    public UserAccountNotFoundException() {
        super();
    }

    public UserAccountNotFoundException(int errorCode, String errorMessage) {
        super(errorCode, errorMessage);

    }

    public UserAccountNotFoundException(Throwable cause, boolean enableSuppression, boolean writableStackTrace,
            int errorCode, String errorMessage) {
        super(cause, enableSuppression, writableStackTrace, errorCode, errorMessage);
    }

    public UserAccountNotFoundException(Throwable cause, int errorCode, String errorMessage) {
        super(cause, errorCode, errorMessage);
    }

}

用户账户异常类

public class UserAccountException extends Exception {
    /**
     * 
     */
    private static final long serialVersionUID = -591169136507677996L;
    protected ErrorInfoDto errorInfoDto;

    public UserAccountException() {
        super();
    }

    public UserAccountException(Throwable cause, boolean enableSuppression,
            boolean writableStackTrace,int errorCode, String errorMessage) {
        this.errorInfoDto = formErrorInfoDto(errorCode, errorMessage);
    }

    public UserAccountException(int errorCode,String errorMessage) {
        this.errorInfoDto = formErrorInfoDto(errorCode, errorMessage);
    }

    public UserAccountException(Throwable cause,int errorCode, String errorMessage) {
        this.errorInfoDto = formErrorInfoDto(errorCode, errorMessage);
    }
    
    private ErrorInfoDto formErrorInfoDto(int errorCode, String errorMessage) {
        ErrorInfoDto errorInfoDto = null;
        errorInfoDto = new ErrorInfoDto();
        errorInfoDto.setErrorCode(errorCode);
        errorInfoDto.setErrorMessage(errorMessage);
        return errorInfoDto;
        
    }
    
    public ErrorInfoDto getErrorInfoDto() {
        return errorInfoDto;
    }
}

存储库界面

public interface SystemUserRepository extends JpaRepository<SystemUser, Long> {
    long countByEmailAddress(String emailAddress);

    long countByMobileNo(String mobileNo);

    Optional<SystemUser> findByEmailAddress(String emailAddress);
    
}

Answer 1

Mockito

异常单独说明了这一点 -

when(this.systemUserRepository.findByEmailAddress(emailAddress)).thenThrow(UserAccountNotFoundException.class);

行指示 Mockito 在调用

systemUserRepository.findByEmailAddress(...)

时抛出异常。

但是，

SystemUserRepository

的发布代码确实声明了该方法的任何已检查异常：

Optional<SystemUser> findByEmailAddress(String emailAddress);

另请注意，

SystemUserRepository

通过给出

Optional.empty()

而不是抛出异常来处理未找到用户的情况。