actual and formal argument lists differ in length 에러

상황

테스트에서 Post에 대한 Dto를 전송하여 Controller에 대한 슬라이스 테스트 진행 하려 함.

 

• 실행 코드

@WebMvcTest({MajorController.class, MajorMapper.class})
@AutoConfigureMockMvc
public class MajorControllerTest {

    @Autowired
    private MockMvc mockMvc;

    private MediaType mediaType = MediaType.APPLICATION_JSON;

    @Autowired
    private Gson gson;

    @Test
    public void postMajorTest() throws Exception {

        MajorDto.Post post = MajorDto.Post.builder().majorCode("CPS").majorName("Computer Science").build();

        String content = gson.toJson(post);

        ResultActions actions = mockMvc.perform(post("/v1/major")
                .accept(mediaType)
                .contentType(mediaType)
                .content(content)
        );

        ResultActions result = actions.andExpect(status().isCreated());

    }


}

테스트가 실행조차 안되며 컴파일 에러 발생.

 

• 에러 메세지

> Task :compileJava FAILED
C:\StartDream\CodeStates\WorkSpace\Spring\side-project\from-controller_to-exception_practice\src\main\java\com\practice\example\major\mapper\MajorMapper.java:11: warning: Unmapped target properties: "majorId, studentList, professorList, subjectList".
    Major majorPostDtoToMajor(MajorDto.Post dto);
          ^
C:\StartDream\CodeStates\WorkSpace\Spring\side-project\from-controller_to-exception_practice\src\main\java\com\practice\example\major\dto\MajorDto.java:14: error: constructor Post in class Post cannot be applied to given types;
    @Builder
    ^
  required: no arguments
  found: String,String
  reason: actual and formal argument lists differ in length
Note: C:\StartDream\CodeStates\WorkSpace\Spring\side-project\from-controller_to-exception_practice\src\main\java\com\practice\example\major\controller\MajorController.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error
1 warning
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':compileJava'.
> Compilation failed; see the compiler error output for details.
* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 2s
1 actionable task: 1 executed

 

에러 내용

뭔가 맵핑 부분에서 에러가 나는것 처럼 보였다.

에러 라인이 모두 맵핑과 관련된 라인이였기 때문이다.

 

 

 

원인 

@Builder를 쓰는 Dto에 

@AllArgsConstructor 가 없어서.

 

 

해결 방법

원인이 되는것으로 추정 되는,  @Builder를 쓰는 Dto에 @AllArgsConstructor 추가

 

 

 

결과

해결

 

 

참조 : https://yuja-kong.tistory.com/99