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관리 메뉴

쌩로그

@RestControllerAdvice 본문

TroubleShooting & 고민/BE

@RestControllerAdvice

.쌩수. 2024. 9. 16. 16:33

포스팅 개요
본론
결론 및 요약

1. 포스팅 개요

요즘 너무 인풋만 해서 output을 하려니 머리가 안 돌아가서 배운 걸 써먹기 위해서 부트 캠프 때 진행했던 메인 프로젝트를 리팩터링 중이다.

테스트 코드도 일일이 다 작성하는 중이다.

컨트롤러 Bean Validation 검증 테스트 중 강의 내용을 참고하는데도 컨트롤러 테스트에서 계속 성공하지 못 하길레 가만히 들여다봤더니, 컨트롤러에도 @Controller가 있고, 내부에 @ResponseBody를 가진 @RestController가 있듯이

#ControllerAdvice에도 내부에 @ResponseBody를 가진 @RestControllerAdvice가 있다..

@RestController를 몰라서 해맸다.

그냥 잊지 않기 위해 포스팅 한다..

레포 링크 : https://github.com/SsangSoo/bookvillage

2. 본론

package refactoring.bookvillage.domain.borrow.controller.dto;  

import jakarta.validation.constraints.NotBlank;  
import lombok.AllArgsConstructor;  
import lombok.Getter;  

@Getter  
@AllArgsConstructor  
public class CreateBorrowRequestDto {  

    @NotBlank(message = "대여 게시글 제목은 필수입니다.")  
    private String title;  

    @NotBlank(message = "본문 내용은 필수 입니다.")  
    private String content;  

    @NotBlank(message = "책 제목은 필수입니다.")  
    private String bookTitle;  

    private String author;  

    private String publisher;  

    private String thumbnail;  

}

책을 대여해준다는 게시글을 쓸 때 필요한 데이터들을 받는 RequestDto다

title이 @NotBlank인데, 테스트 코드를 작성할 때 null을 줬다.

아래가 테스트 코드다.

package refactoring.bookvillage.domain.borrow.controller;  

import com.fasterxml.jackson.databind.ObjectMapper;  
import org.junit.jupiter.api.DisplayName;  
import org.junit.jupiter.api.Test;  
import org.springframework.beans.factory.annotation.Autowired;  
import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;  
import org.springframework.boot.test.mock.mockito.MockBean;  
import org.springframework.http.MediaType;  
import org.springframework.test.web.servlet.MockMvc;  
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;  
import org.springframework.test.web.servlet.result.MockMvcResultHandlers;  
import refactoring.bookvillage.domain.borrow.controller.dto.CreateBorrowRequestDto;  
import refactoring.bookvillage.domain.borrow.service.BorrowService;  

import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;  

@WebMvcTest(controllers = BorrowController.class)  
class BorrowControllerTest {  

    @Autowired  
    private MockMvc mockMvc;  

    @Autowired  
    private ObjectMapper objectMapper;  

    @MockBean  
    private BorrowService borrowService;  


    @Test  
    @DisplayName("대여 게시글 생성 데이터(게시글 제목, 본문, 책 제목)검증 테스트")  
    void createBorrowRequestDataValidationTest() throws Exception {  
        //given  
        CreateBorrowRequestDto request = new CreateBorrowRequestDto(null, "본문", "책 제목", "작가", "출판사", "썸네일 주소");  

        //when //then  
        mockMvc.perform(MockMvcRequestBuilders.post("/api/borrow")  
                        .content(objectMapper.writeValueAsString(request))  
                        .contentType(MediaType.APPLICATION_JSON)  
                )  
                .andDo(MockMvcResultHandlers.print())  
                .andExpect(status().isBadRequest())  
                .andExpect(jsonPath("$.code").value("400"))  
                .andExpect(jsonPath("$.status").value("BAD_REQUEST"))  
                .andExpect(jsonPath("$.message").value("대여 게시글 제목은 필수입니다."))  
                .andExpect(jsonPath("$.data").isEmpty());  


    }  

}

그리고 아래는 이 예외를 잡아 처리하는 ControllerAdvice 클래스다.

package refactoring.bookvillage.global.exception;  

import org.springframework.http.HttpStatus;  
import org.springframework.validation.BindException;  
import org.springframework.web.bind.annotation.ControllerAdvice;  
import org.springframework.web.bind.annotation.ExceptionHandler;  
import org.springframework.web.bind.annotation.ResponseStatus;  


@ControllerAdvice  
public class ApiControllerAdvice {  

    @ResponseStatus(HttpStatus.BAD_REQUEST)  
    @ExceptionHandler(BindException.class)  
    public ErrorResponse<Object> handleBindException(BindException e) {  
        return ErrorResponse.of(  
                HttpStatus.BAD_REQUEST,  
                e.getBindingResult().getAllErrors().get(0).getDefaultMessage(),  
                null        
        );  
    }  


}

테스트 결과는 다음과 같다.

로그 중 주요 결과를 보자.


MockHttpServletRequest:
      HTTP Method = POST
      Request URI = /api/borrow
       Parameters = {}
          Headers = [Content-Type:"application/json;charset=UTF-8", Content-Length:"131"]
             Body = {"title":null,"content":"본문","bookTitle":"책 제목","author":"작가","publisher":"출판사","thumbnail":"썸네일 주소"}
    Session Attrs = {}

Handler:
             Type = refactoring.bookvillage.domain.borrow.controller.BorrowController
           Method = refactoring.bookvillage.domain.borrow.controller.BorrowController#createBorrow(CreateBorrowRequestDto, HttpServletRequest)

...

Resolved Exception:
             Type = org.springframework.web.bind.MethodArgumentNotValidException

ModelAndView:
        View name = api/borrow
             View = null
        Attribute = errorResponse
            value = refactoring.bookvillage.global.exception.ErrorResponse@4e26564d


...
...


MockHttpServletResponse:
           Status = 400
    Error message = null
          Headers = [Content-Language:"en"]
     Content type = null
             Body = 
    Forwarded URL = api/borrow
   Redirected URL = null
          Cookies = []

java.lang.AssertionError: No value at JSON path "$.code"
    at org.springframework.test.util.JsonPathExpectationsHelper.evaluateJsonPath(JsonPathExpectationsHelper.java:302)
    at org.springframework.test.util.JsonPathExpectationsHelper.assertValue(JsonPathExpectationsHelper.java:99)
    at org.springframework.test.web.servlet.result.JsonPathResultMatchers.lambda$value$2(JsonPathResultMatchers.java:111)
    at org.springframework.test.web.servlet.MockMvc$1.andExpect(MockMvc.java:214)
    at refactoring.bookvillage.domain.borrow.controller.BorrowControllerTest.createBorrowRequestDataValidationTest(BorrowControllerTest.java:44)
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
    at java.base/java.lang.reflect.Method.invoke(Method.java:580)
    at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:728)
    at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
    at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)
    at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:156)
    at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:147)
    at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:86)
    at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:103)
    at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:93)
    at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)
    at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)
    at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)
    at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)
    at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:92)
    at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:86)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:218)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:214)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:139)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:69)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
    at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
    at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
    at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
    at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
    at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
    at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
    at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
    at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52)
    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)
    at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)
    at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:119)
    at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$000(JUnitPlatformTestClassProcessor.java:94)
    at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:89)
    at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:62)
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
    at java.base/java.lang.reflect.Method.invoke(Method.java:580)
    at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)
    at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
    at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33)
    at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:94)
    at jdk.proxy1/jdk.proxy1.$Proxy2.stop(Unknown Source)
    at org.gradle.api.internal.tasks.testing.worker.TestWorker$3.run(TestWorker.java:193)
    at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:129)
    at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:100)
    at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:60)
    at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56)
    at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:113)
    at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:65)
    at worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69)
    at worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74)
Caused by: java.lang.IllegalArgumentException: json can not be null or empty
    at com.jayway.jsonpath.internal.Utils.notEmpty(Utils.java:401)
    at com.jayway.jsonpath.JsonPath.read(JsonPath.java:390)
    at com.jayway.jsonpath.JsonPath.read(JsonPath.java:377)
    at org.springframework.test.util.JsonPathExpectationsHelper.evaluateJsonPath(JsonPathExpectationsHelper.java:299)
    ... 84 more


java.lang.IllegalArgumentException: json can not be null or empty
    at com.jayway.jsonpath.internal.Utils.notEmpty(Utils.java:401)
    at com.jayway.jsonpath.JsonPath.read(JsonPath.java:390)
    at com.jayway.jsonpath.JsonPath.read(JsonPath.java:377)
    at org.springframework.test.util.JsonPathExpectationsHelper.evaluateJsonPath(JsonPathExpectationsHelper.java:299)
    at org.springframework.test.util.JsonPathExpectationsHelper.assertValue(JsonPathExpectationsHelper.java:99)
    at org.springframework.test.web.servlet.result.JsonPathResultMatchers.lambda$value$2(JsonPathResultMatchers.java:111)
    at org.springframework.test.web.servlet.MockMvc$1.andExpect(MockMvc.java:214)
    at refactoring.bookvillage.domain.borrow.controller.BorrowControllerTest.createBorrowRequestDataValidationTest(BorrowControllerTest.java:44)
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
    at java.base/java.lang.reflect.Method.invoke(Method.java:580)
    at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:728)
    at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
    at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)
    at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:156)
    at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:147)
    at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:86)
    at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:103)
    at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:93)
    at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)
    at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)
    at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)
    at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)
    at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:92)
    at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:86)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:218)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:214)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:139)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:69)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
    at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
    at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
    at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
    at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
    at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
    at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
    at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
    at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52)
    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)
    at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)
    at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:119)
    at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$000(JUnitPlatformTestClassProcessor.java:94)
    at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:89)
    at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:62)
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
    at java.base/java.lang.reflect.Method.invoke(Method.java:580)
    at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)
    at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
    at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33)
    at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:94)
    at jdk.proxy1/jdk.proxy1.$Proxy2.stop(Unknown Source)
    at org.gradle.api.internal.tasks.testing.worker.TestWorker$3.run(TestWorker.java:193)
    at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:129)
    at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:100)
    at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:60)
    at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56)
    at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:113)
    at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:65)
    at worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69)
    at worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74)

cause by를 보면 계속 뭐를 찾을 수 없다고 한다.

몇 분동안 계속 뭐지? 뭐가 없다고 하지? 했다.

로그에 나와있듯이 response 결과를 보면, ErrorResponse의 데이터를 못 보내고 있었다.

참고로 ErrorResponse 클래스는 다음과 같다.

package refactoring.bookvillage.global.exception;  

import lombok.Getter;  
import org.springframework.http.HttpStatus;  

@Getter  
public class ErrorResponse<T> {  

    private int code;  
    private HttpStatus status;  
    private String message;  
    private T data;  

    public ErrorResponse(HttpStatus status, String message, T data) {  
        this.code = status.value();  
        this.status = status;  
        this.message = message;  
        this.data = data;  
    }  

    public static <T> ErrorResponse<T> of(HttpStatus status, String message, T data) {  
        return new ErrorResponse<>(status, message, data);  
    }  

    public static <T> ErrorResponse<T> of(HttpStatus status, T data) {  
        return of(status, status.name(), data);  
    }  

    public static <T> ErrorResponse<T> of(T data) {  
        return of(HttpStatus.OK, HttpStatus.OK.name(), data);  
    }  

}

code가 없다고 한다.

뭐지? 하고 Postman을 켜봤다.

너무 길어서 다 못 캡쳐했는데, 아래에는 message, path의 데이터가 있다.

결론은 의도한대로 나오지 않고 있다는 거다.

왜 안 나오지?? 하다가
이상한 게 발견되긴 했는데, 바로 반환 중에 viewName을 반환하고 있다는 것..

오잉? 이었다..

API 통신 중이고, ModelAndView는 사용하지도 않는데, 뷰 네임을 왜 반환하지? 하고 봤는데,

내가 강의 보면서 정리했던 곳에 @RestControllerAdvice가 있었다..

참고 블로그이다.

그러니깐.. @ControllerAdvice를 사용 중이었기 때문에, viewName을 반환하고 있었던 것이다.

@RestController를 사용해야 JSON을 반환하는 것이다..;;

이걸 본 내 기분은 그냥 현타 + "하.." 하면서 한숨을 내쉬었다.

그리고 비로소 @RestController를 사용하니깐 테스트 성공한다.

아래는 보너스 포스트맨 테스트 컷이다.
(포스트맨으로 일일이 테스트 안 하려고 테스트 코드 작성하는 건데.. 포스트맨으로 결과를 확인하고 있다...;;;)

3. 결론 및 요약

Rest 할 땐 @RestControllerAdivce를 사용하자.
무한 인풋의 폐해..가끔은 아웃풋도 필요하다.
테스트 코드 작성은 겁나게 머리 아프다.만, 재밌다.

흠.. 더 많아질텐데...
그래도 눈이 즐겁다. ㅋ

참고 블로그

https://ssangsu.tistory.com/188

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