Fix: Mongo 저장 실패 시 update 롤백 - em.clear

Author: lunarbae628

src/test/java/io/ejangs/docsa/domain/save/app/SaveServiceIntegrationTest.java

@@ -65,6 +65,9 @@ class SaveServiceIntegrationTest {
     @Autowired
     private CommitRepository commitRepository;
 
+    @Autowired
+    private EntityManager em;
+
     @MockitoBean
     private SaveContentRepository saveContentRepository;
 
@@ -129,6 +132,8 @@ void updateSave_fails_whenMongoSaveFails_thenMysqlDeleted() throws Exception {
                     .isInstanceOf(CustomException.class)
                     .hasMessageContaining(DatabaseErrorCode.DATABASE_ERROR.getMessage());
 
+            em.clear();
+
             Save after = saveRepository.findById(save.getId()).orElse(null);
             assertThat(after).isNotNull();
             assertThat(after.getUpdatedAt()).isEqualTo(beforeUpdatedAt);