mock3.java

public class BlogService {

    public BlogService(AuthClient authClient, BlogRepository repository) {
        this.authClient = authClient;
        this.repository = repository;
    }

    public AddPostResponse addPost(AddPostRequest request) {
        // verifyToken 메소드 파라미터 추가
        // 리턴 값이 User 객체로 변경
        User user = authClient.verifyToken(request.getToken(), request.getClientIp()); 
        
        Post post = request.getPost();
        long postId = repository.save(user.getId(), post);
        return new AddPostResponse(user.getId(), post);
    } 
}

public class BlogServiceTest {
    ...

    @Test
    public void addPost() {
        // given
        given(authClient.verifyToken(anyString())).willReturn(1L); // 깨짐
        ...
    
        // then
        verify(authClient).should().verifyToken(anyString()); // 깨짐
        ...
    }
    @Test
    public void addPost_thrownByAuthClient() {
        // given
        given(repository.save(any())).willThrow(new RuntimeException()); // 깨짐
        ...

        // then
        verify(authClient).should().verifyToken(any()); // 깨짐
        ...
    }
}