[test] QuestionController.createQuestion 테스트 코드 작성

src/main/java/qp/official/qp/QpBackendApplication.java

@@ -2,13 +2,11 @@
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
- import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
 
 import javax.annotation.PostConstruct;
 import java.util.TimeZone;
 
 @SpringBootApplication
-@EnableJpaAuditing
 public class QpBackendApplication {
 
     static {

src/main/java/qp/official/qp/config/JpaEnversConfiguration.java

@@ -0,0 +1,9 @@
+package qp.official.qp.config;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
+
+@Configuration
+@EnableJpaAuditing
+public class JpaEnversConfiguration {
+}

src/main/java/qp/official/qp/config/ObjectMapperConfig.java

@@ -0,0 +1,21 @@
+package qp.official.qp.config;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.converter.HttpMessageConverter;
+import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+import java.util.List;
+
+import static java.nio.charset.StandardCharsets.UTF_8;
+
+@Configuration
+public class ObjectMapperConfig implements WebMvcConfigurer {
+    @Override
+    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
+        converters.stream()
+                .filter(converter -> converter instanceof MappingJackson2HttpMessageConverter)
+                .findFirst()
+                .ifPresent(converter -> ((MappingJackson2HttpMessageConverter) converter).setDefaultCharset(UTF_8));
+    }
+}

src/main/java/qp/official/qp/domain/Question.java

@@ -8,6 +8,7 @@
 import qp.official.qp.web.dto.QuestionRequestDTO;
 
 import javax.persistence.*;
+import java.time.LocalDateTime;
 import java.util.ArrayList;
 import java.util.List;
 

src/main/java/qp/official/qp/web/controller/QuestionController.java

@@ -32,6 +32,7 @@
 public class QuestionController {
     private final QuestionCommandService questionCommandService;
     private final QuestionQueryService questionQueryService;
+    private final TokenService tokenService;
 
     // 질문 작성
     @PostMapping

src/test/java/qp/official/qp/web/controller/QuestionControllerTest.java

@@ -0,0 +1,132 @@
+package qp.official.qp.web.controller;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+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.test.util.ReflectionTestUtils;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.ResultActions;
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
+import qp.official.qp.apiPayload.ApiResponse;
+import qp.official.qp.domain.Hashtag;
+import qp.official.qp.domain.Question;
+import qp.official.qp.domain.User;
+import qp.official.qp.repository.HashtagRepository;
+import qp.official.qp.repository.UserRepository;
+import qp.official.qp.service.QuestionService.QuestionCommandService;
+import qp.official.qp.service.QuestionService.QuestionQueryService;
+import qp.official.qp.service.TokenService.TokenService;
+import qp.official.qp.web.dto.QuestionRequestDTO;
+import qp.official.qp.web.dto.QuestionResponseDTO;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.Optional;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.when;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+// WebMvcTest를 사용하여 QuestionController를 테스트
+// WebMvcTest는 Controller가 의존하는 Bean들만 로드하여 테스트
+@WebMvcTest(QuestionController.class)
+class QuestionControllerTest {
+
+    @MockBean
+    private QuestionCommandService questionCommandService;
+    @MockBean
+    private QuestionQueryService questionQueryService;
+
+    // ExistHashTag 어노테이션에서 사용하는 HashtagRepository
+    @MockBean
+    private HashtagRepository hashtagRepository;
+
+    // ExistUser 어노테이션에서 사용하는 UserRepository
+    @MockBean
+    private UserRepository userRepository;
+
+    @MockBean
+    private TokenService tokenService;
+
+    // MockMvc를 사용하여 API를 테스트
+    private final MockMvc mockMvc;
+
+    // ObjectMapper를 사용하여 객체를 JSON으로 변환 또는 JSON을 객체로 변환
+    private final ObjectMapper objectMapper;
+
+    @Autowired
+    public QuestionControllerTest(
+            MockMvc mockMvc,
+            ObjectMapper objectMapper
+    ) {
+        this.mockMvc = mockMvc;
+        this.objectMapper = objectMapper;
+    }
+
+    @Test
+    void createQuestion() throws Exception {
+        // given
+        String testTitle = "new title";
+        String testContent = "new content";
+
+        Long userId = 1L;
+        Long questionId = 1L;
+        LocalDateTime createdAt = LocalDateTime.now();
+
+        // Request 객체 생성
+        QuestionRequestDTO.CreateDTO questionRequest = QuestionRequestDTO.CreateDTO.builder()
+                .userId(userId)
+                .title(testTitle)
+                .content(testContent)
+                .hashtag(new ArrayList<>())
+                .build();
+
+
+        // Expect Response 객체 생성
+        Question questionResponse = Question.builder()
+                .questionId(questionId)
+                .title(testTitle)
+                .content(testContent)
+                .answers(new ArrayList<>())
+                .build();
+
+        // Setter 없이 ReflectionTestUtils를 사용하여 필드값을 설정
+        ReflectionTestUtils.setField(questionResponse, "createdAt", createdAt);
+
+        // questionCommandService 에서 createQuestion 메소드가 호출될 때 questionResponse를 반환하도록 설정
+        when(questionCommandService.createQuestion(any(QuestionRequestDTO.CreateDTO.class))).thenReturn(questionResponse);
+        // ExistUser 어노테이션을 통과하기 위해 userRepository 에서 findById 메소드가 호출될 때 아무 Optional.of(User.builder().build())를 반환하도록 설정
+        when(userRepository.findById(any(Long.class))).thenReturn(Optional.of(User.builder().build()));
+        // ExistHashTag 어노테이션을 통과하기 위해 hashtagRepository 에서 findById 메소드가 호출될 때 아무 Optional.of(Hashtag.builder().build())를 반환하도록 설정
+        when(hashtagRepository.findById(any(Long.class))).thenReturn(Optional.of(Hashtag.builder().build()));
+
+        // when
+        // Request 객체를 JSON으로(request body로) 변환
+        String body = objectMapper.writeValueAsString(questionRequest);
+        // API 호출
+        ResultActions action = mockMvc.perform(MockMvcRequestBuilders.post("/questions")
+                .contentType("application/json")
+                .content(body));
+
+        // then
+        // API 호출 결과가 200 OK인지 확인
+        action.andExpect(status().isOk());
+
+        // API 호출 결과를 ApiResponse 객체로 변환
+        ApiResponse<QuestionResponseDTO.CreateResultDTO> response = objectMapper.readValue(
+                action.andReturn().getResponse().getContentAsString(),
+                new TypeReference<>() {
+                }
+        );
+
+        // questionId 확인
+        assertEquals(questionId, response.getResult().getQuestionId());
+
+        // createAt 확인
+        assertEquals(createdAt, response.getResult().getCreatedAt());
+    }
+}