feat: 소셜 로그인 사용자는 비밀번호 변경을 할 수 없다.

src/main/java/com/example/solidconnection/common/exception/ErrorCode.java

@@ -64,6 +64,7 @@ public enum ErrorCode {
     PASSWORD_NOT_CHANGED(HttpStatus.BAD_REQUEST.value(), "현재 비밀번호와 새 비밀번호가 동일합니다."),
     PASSWORD_NOT_CONFIRMED(HttpStatus.BAD_REQUEST.value(), "새 비밀번호가 일치하지 않습니다."),
     SIGN_IN_FAILED(HttpStatus.UNAUTHORIZED.value(), "로그인에 실패했습니다. 이메일과 비밀번호를 확인해주세요."),
+    OAUTH_USER_CANNOT_CHANGE_PASSWORD(HttpStatus.BAD_REQUEST.value(), "소셜 로그인 사용자는 비밀번호를 변경할 수 없습니다."),
 
     // s3
     S3_SERVICE_EXCEPTION(HttpStatus.BAD_REQUEST.value(), "S3 서비스 에러 발생"),

src/main/java/com/example/solidconnection/siteuser/service/MyPageService.java

@@ -3,6 +3,7 @@
 import static com.example.solidconnection.common.exception.ErrorCode.CAN_NOT_CHANGE_NICKNAME_YET;
 import static com.example.solidconnection.common.exception.ErrorCode.MENTOR_NOT_FOUND;
 import static com.example.solidconnection.common.exception.ErrorCode.NICKNAME_ALREADY_EXISTED;
+import static com.example.solidconnection.common.exception.ErrorCode.OAUTH_USER_CANNOT_CHANGE_PASSWORD;
 import static com.example.solidconnection.common.exception.ErrorCode.PASSWORD_MISMATCH;
 import static com.example.solidconnection.common.exception.ErrorCode.UNIVERSITY_NOT_FOUND;
 import static com.example.solidconnection.common.exception.ErrorCode.USER_NOT_FOUND;
@@ -16,6 +17,7 @@
 import com.example.solidconnection.s3.domain.ImgType;
 import com.example.solidconnection.s3.dto.UploadedFileUrlResponse;
 import com.example.solidconnection.s3.service.S3Service;
+import com.example.solidconnection.siteuser.domain.AuthType;
 import com.example.solidconnection.siteuser.domain.Role;
 import com.example.solidconnection.siteuser.domain.SiteUser;
 import com.example.solidconnection.siteuser.dto.LocationUpdateRequest;
@@ -126,6 +128,10 @@ public void updatePassword(long siteUserId, PasswordUpdateRequest request) {
         SiteUser user = siteUserRepository.findById(siteUserId)
                 .orElseThrow(() -> new CustomException(USER_NOT_FOUND));
 
+        if (!AuthType.isEmail(user.getAuthType())) {
+            throw new CustomException(OAUTH_USER_CANNOT_CHANGE_PASSWORD);
+        }
+
         // 사용자의 비밀번호와 request의 currentPassword가 동일한지 검증
         validatePasswordMatch(request.currentPassword(), user.getPassword());
 

src/test/java/com/example/solidconnection/siteuser/service/MyPageServiceTest.java

@@ -1,6 +1,7 @@
 package com.example.solidconnection.siteuser.service;
 
 import static com.example.solidconnection.common.exception.ErrorCode.CAN_NOT_CHANGE_NICKNAME_YET;
+import static com.example.solidconnection.common.exception.ErrorCode.OAUTH_USER_CANNOT_CHANGE_PASSWORD;
 import static com.example.solidconnection.common.exception.ErrorCode.PASSWORD_MISMATCH;
 import static com.example.solidconnection.siteuser.service.MyPageService.MIN_DAYS_BETWEEN_NICKNAME_CHANGES;
 import static com.example.solidconnection.siteuser.service.MyPageService.NICKNAME_LAST_CHANGE_DATE_FORMAT;
@@ -49,6 +50,8 @@
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.EnumSource;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.mock.mockito.MockBean;
 import org.springframework.mock.web.MockMultipartFile;
@@ -328,6 +331,27 @@ void setUp() {
                     .isInstanceOf(CustomException.class)
                     .hasMessage(PASSWORD_MISMATCH.getMessage());
         }
+
+        @ParameterizedTest
+        @EnumSource(value = AuthType.class, names = {"KAKAO", "APPLE"})
+        void 소셜_로그인_사용자가_비밀번호를_변경하면_예외가_발생한다(AuthType authType) {
+            // given
+            SiteUser oauthUser = siteUserFixtureBuilder.siteUser()
+                    .email("oauth@example.com")
+                    .authType(authType)
+                    .nickname("소셜로그인사용자")
+                    .profileImageUrl("profileImageUrl")
+                    .role(Role.MENTEE)
+                    .password("randomPassword")
+                    .create();
+
+            PasswordUpdateRequest request = new PasswordUpdateRequest("anyPassword", "newPassword", "newPassword");
+
+            // when & then
+            assertThatThrownBy(() -> myPageService.updatePassword(oauthUser.getId(), request))
+                    .isInstanceOf(CustomException.class)
+                    .hasMessage(OAUTH_USER_CANNOT_CHANGE_PASSWORD.getMessage());
+        }
     }
 
     @Nested