diff --git a/distributeddatamgr/distributedKVStoretest/distributedKVStorejstest/hap/src/main/js/test/KvStoreBackupPromiseJsTest.js b/distributeddatamgr/distributedKVStoretest/distributedKVStorejstest/hap/src/main/js/test/KvStoreBackupPromiseJsTest.js
index 513f2e4f94b9a72ef8e6274424f24d1ec4289939..470e3ec83c4c14b3a9246e73307ab150353684a0 100644
--- a/distributeddatamgr/distributedKVStoretest/distributedKVStorejstest/hap/src/main/js/test/KvStoreBackupPromiseJsTest.js
+++ b/distributeddatamgr/distributedKVStoretest/distributedKVStorejstest/hap/src/main/js/test/KvStoreBackupPromiseJsTest.js
@@ -131,6 +131,7 @@ function publicDeleteBackup(kvStore,files){
         })
     } catch (e) {
         console.log("111Test deleteBackup err information: " + e );
+        reject(e);
     }
     }) 
 }
@@ -173,7 +174,6 @@ const optionLock = {
     securityLevel: distributedData.SecurityLevel.S1,
 }
 
-var file = '';
 
 var files =new Array();
 export default function kvStoreBackupPromiseJsunittest(){