Feat#50: user 프로필 조회 기능 구현

src/main/java/server/poptato/user/api/UserController.java

@@ -5,6 +5,7 @@
 import org.springframework.web.bind.annotation.*;
 import server.poptato.global.response.BaseResponse;
 import server.poptato.user.api.request.UserChangeNameRequestDto;
+import server.poptato.user.application.response.UserResponseDto;
 import server.poptato.user.application.service.UserService;
 import server.poptato.user.resolver.UserId;
 
@@ -27,4 +28,9 @@ public BaseResponse updateUserName(@UserId Long userId, @Validated @RequestBody
         userService.updateUserName(userId, request.getNewName());
         return new BaseResponse();
     }
+    @GetMapping("/mypage")
+    public BaseResponse getUserNameAndEmail(@UserId Long userId) {
+        UserResponseDto response = userService.getUserNameAndEmailById(userId);
+        return new BaseResponse(response);
+    }
 }

src/main/java/server/poptato/user/application/response/UserResponseDto.java

@@ -0,0 +1,13 @@
+package server.poptato.user.application.response;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class UserResponseDto {
+    private String name;
+    private String email;
+}

src/main/java/server/poptato/user/application/service/UserService.java

@@ -8,6 +8,7 @@
 import org.springframework.transaction.annotation.Transactional;
 import server.poptato.auth.application.service.JwtService;
 import server.poptato.todo.domain.repository.TodoRepository;
+import server.poptato.user.application.response.UserResponseDto;
 import server.poptato.user.domain.entity.User;
 import server.poptato.user.domain.repository.UserRepository;
 import server.poptato.user.exception.UserException;
@@ -35,18 +36,18 @@ public void deleteUser(Long userId) {
         entityManager.flush();
     }
     @Transactional
-    @CacheEvict(value = "users", key = "#kakaoId")
-    public Optional<User> findUserByKakaoId(String kakaoId) {
-        entityManager.clear();  // 영속성 컨텍스트 초기화
-        return userRepository.findByKakaoId(kakaoId);
-    }
-    @Transactional
     public void updateUserName(Long userId, String newName) {
-        // 사용자 조회
         User user = userRepository.findById(userId)
                 .orElseThrow(() -> new UserException(UserExceptionErrorCode.USER_NOT_EXIST));
 
         // name 업데이트
         user.changeName(newName);
     }
+    @Transactional(readOnly = true)
+    public UserResponseDto getUserNameAndEmailById(Long userId) {
+        User user = userRepository.findById(userId)
+                .orElseThrow(() -> new UserException(UserExceptionErrorCode.USER_NOT_EXIST));
+
+        return new UserResponseDto(user.getName(), user.getEmail());
+    }
 }

src/test/java/server/poptato/user/api/UserControllerTest.java

@@ -21,6 +21,7 @@
 
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.*;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.patch;
 import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
@@ -53,6 +54,26 @@ class UserControllerTest {
     void 액세스토큰_비활성화() {
         jwtService.deleteRefreshToken(userId);
     }
+
+    @Test
+    @DisplayName("프로필 조회 성공 테스트")
+    void getUserNameAndEmail() throws Exception {
+        mockMvc.perform(get("/user/mypage")
+                        .header("Authorization", "Bearer "+accessToken)
+                        .contentType(MediaType.APPLICATION_JSON))
+                .andExpect(status().isOk())
+                .andDo(print());
+    }
+    @Test
+    @DisplayName("프로필 조회 실패 테스트 - invalid token")
+    void getUserNameAndEmailFailedInvalidToken() throws Exception {
+        String invalidToken = "invalidToken";
+        mockMvc.perform(get("/user/mypage")
+                        .header("Authorization", "Bearer "+invalidToken)
+                        .contentType(MediaType.APPLICATION_JSON))
+                .andExpect(status().isBadRequest())
+                .andDo(print());
+    }
     @Test
     @DisplayName("사용자 이름 변경 성공 테스트")
     void updateUserName_ShouldReturnSuccess() throws Exception {

src/test/java/server/poptato/user/application/UserServiceTest.java

@@ -5,6 +5,7 @@
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.transaction.annotation.Transactional;
+import server.poptato.user.application.response.UserResponseDto;
 import server.poptato.user.application.service.UserService;
 import server.poptato.user.domain.entity.User;
 import server.poptato.user.domain.repository.UserRepository;
@@ -54,5 +55,29 @@ void updateUserName_ShouldThrowException_WhenUserNotFound() {
 
         assertThat(exception.getMessage()).isEqualTo(UserExceptionErrorCode.USER_NOT_EXIST.getMessage());
     }
+    @Test
+    @DisplayName("getUserNameAndEmailById 메서드는 유효한 userId가 주어졌을 때 사용자 이름과 이메일을 반환한다")
+    public void shouldReturnUserNameAndEmail_WhenUserIdIsValid() {
+        // Given
+        Long userId = 1L;
+
+        // When
+        UserResponseDto responseDto = userService.getUserNameAndEmailById(userId);
+
+        // Then
+        assertThat(responseDto.getName()).isEqualTo("Poptato");
+        assertThat(responseDto.getEmail()).isEqualTo("[email protected]");
+    }
+
+    @Test
+    @DisplayName("getUserNameAndEmailById 메서드는 유효하지 않은 userId가 주어졌을 때 UserException을 던진다")
+    public void shouldThrowUserException_WhenUserIdIsInvalid() {
+        // Given
+        Long invalidUserId = 2L;
+
+        // When & Then
+        org.junit.jupiter.api.Assertions.assertThrows(UserException.class,
+                () -> userService.getUserNameAndEmailById(invalidUserId));
+    }
 }