diff --git a/src/main/java/com/itn/mjonApi/mjon/api/inqry/service/impl/HstryServiceImpl.java b/src/main/java/com/itn/mjonApi/mjon/api/inqry/service/impl/HstryServiceImpl.java
index d46df2b..638527d 100644
--- a/src/main/java/com/itn/mjonApi/mjon/api/inqry/service/impl/HstryServiceImpl.java
+++ b/src/main/java/com/itn/mjonApi/mjon/api/inqry/service/impl/HstryServiceImpl.java
@@ -1,14 +1,18 @@
 package com.itn.mjonApi.mjon.api.inqry.service.impl;
 
+import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 import org.apache.catalina.connector.Response;
+import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import com.itn.mjonApi.cmn.apiServer.ApiService;
 import com.itn.mjonApi.cmn.msg.RestResponse;
-import com.itn.mjonApi.cmn.msg.SendSuccessRestResponse;
+import com.itn.mjonApi.cmn.msg.StatMsg;
 import com.itn.mjonApi.mjon.api.access.mapper.domain.AccessKeyVO;
 import com.itn.mjonApi.mjon.api.inqry.mapper.HstryMapper;
 import com.itn.mjonApi.mjon.api.inqry.service.HstryService;
@@ -45,6 +49,12 @@ public class HstryServiceImpl implements HstryService {
 
         //전체 발송 이력
         log.info(" :: hstryList ::");
+        log.info(hstryVO.getTest_yn());
+        
+        if(StringUtils.isNotEmpty(hstryVO.getTest_yn())){
+            // YF => 실패 테스트 데이터
+            return this._getTestReturnData(hstryVO.getTest_yn());
+        }
 		
         HstryResponseVO hstryResponseVO = new HstryResponseVO();
 		
@@ -173,4 +183,35 @@ public class HstryServiceImpl implements HstryService {
 		
 		return Integer.toString(i_pageSize);
     }
+    
+    private RestResponse _getTestReturnData(String testYn)
+    {
+    	
+        // YF => 실패 테스트 데이터
+        if("YS".equals(testYn))
+        {
+        	List<Map> List = new ArrayList<Map>();
+        	
+        	Map<String, Object> map = new HashMap<>();
+        	map.put("name", "junho85");
+        	map.put("nickname", "June Kim");
+        	
+        	List.add(map);
+        	
+            return new RestResponse(
+            		HstryResponseVO.builder()
+            		.resultCode(0)
+            		.next_yn("N")
+            		.objectList((java.util.List<?>) map)
+            		.build()
+            			/*                        
+                        [{"totMsgCnt":4,"msgResult":"F","msgType":4,"sCnt":0,"msgGroupCnt":3,"smsTxt":"문자 테스트~![*이름*]","wCnt":0,"callFrom":"01035520132","msgTypeName":"단문(SMS)","msgGroupId":"MSGGID_0000000013200","reqdate":"2023-06-01 18:20:07","curState":3,"fCnt":3,"userId":"goodgkdus","remainMsgCnt":0,"regdate":"2023-06-01 18:20:08","reserveCYn":"N","ttlCnt":3},{"totMsgCnt":4,"msgResult":"F","msgType":4,"sCnt":0,"msgGroupCnt":3,"smsTxt":"문자 테스트~![*이름*]","wCnt":0,"callFrom":"01035520132","msgTypeName":"단문(SMS)","msgGroupId":"MSGGID_0000000013190","reqdate":"2023-06-01 17:50:07","curState":3,"fCnt":3,"userId":"goodgkdus","remainMsgCnt":0,"regdate":"2023-06-01 17:50:07","reserveCYn":"N","ttlCnt":3},{"totMsgCnt":4,"msgResult":"F","msgType":4,"sCnt":0,"msgGroupCnt":3,"smsTxt":"문자 테스트~![*이름*]","wCnt":0,"callFrom":"01035520132","msgTypeName":"단문(SMS)","msgGroupId":"MSGGID_0000000013161","reqdate":"2023-06-01 16:40:57","curState":3,"fCnt":3,"userId":"goodgkdus","remainMsgCnt":0,"regdate":"2023-06-01 16:40:57","reserveCYn":"N","ttlCnt":3},{"totMsgCnt":4,"msgResult":"F","msgType":4,"sCnt":0,"msgGroupCnt":3,"smsTxt":"문자 테스트~","wCnt":0,"callFrom":"01035520132","msgTypeName":"단문(SMS)","msgGroupId":"MSGGID_0000000013160","reqdate":"2023-06-01 16:21:49","curState":3,"fCnt":3,"userId":"goodgkdus","remainMsgCnt":0,"regdate":"2023-06-01 16:21:50","reserveCYn":"N","ttlCnt":3}]
+                        */
+            );
+
+        }else{
+            // 실패 코드 중 랜덤으로 리턴
+            return new RestResponse(StatMsg.randomErrorStatCode());
+        }
+    }
 }
diff --git a/src/main/java/com/itn/mjonApi/mjon/api/inqry/service/mapper/domain/HstryVO.java b/src/main/java/com/itn/mjonApi/mjon/api/inqry/service/mapper/domain/HstryVO.java
index 5bacf98..bfba603 100644
--- a/src/main/java/com/itn/mjonApi/mjon/api/inqry/service/mapper/domain/HstryVO.java
+++ b/src/main/java/com/itn/mjonApi/mjon/api/inqry/service/mapper/domain/HstryVO.java
@@ -36,6 +36,8 @@ public class HstryVO implements Serializable{
     @ApiModelProperty(value = "조회마감일자 기본값 내일", example = "20230524")
     private String  endDate;
     
+    @ApiModelProperty(value = "테스트 여부 YF-실패 테스트/YS-성공테스트 기본값 ''", example = "YF")
+    private String test_yn; // 테스트 여부
     
 	//private String mberId;			// 사용자 ID