diff --git a/tools/test/mock/mock_ans_notification.cpp b/tools/test/mock/mock_ans_notification.cpp
index 071d92d7e22b125f0f571f96facaf1878c945dd5..75a8097c1bad06804f22d225532382fa9e04c9b2 100644
--- a/tools/test/mock/mock_ans_notification.cpp
+++ b/tools/test/mock/mock_ans_notification.cpp
@@ -23,10 +23,10 @@ ErrCode AnsNotification::SetNotificationsEnabledForSpecifiedBundle(
     const NotificationBundleOption &bundleOption, const std::string &deviceId, bool enabled)
 {
     if (bundleOption.GetBundleName() == "gg") {
-        return ERR_OK;
+         return ERR_OK;
     } else {
-        return ERR_ANS_SERVICE_NOT_CONNECTED;
-    }
+         return ERR_ANS_SERVICE_NOT_CONNECTED;
+    } 
 }
 }  // namespace Notification
 }  // namespace OHOS
\ No newline at end of file
diff --git a/tools/test/unittest/dump/notification_shell_command_dump_test.cpp b/tools/test/unittest/dump/notification_shell_command_dump_test.cpp
index ab7c2f0a65b1a6250c2bdd202bde205cb487552c..e325a043ba0ae754bb9c65fb538344e89bb784a0 100644
--- a/tools/test/unittest/dump/notification_shell_command_dump_test.cpp
+++ b/tools/test/unittest/dump/notification_shell_command_dump_test.cpp
@@ -78,6 +78,14 @@ static char g_enableObjectNull[] =
 "  --recent-count -c <number>   set the max count of recent notifications keeping in memory\n  --enable-notification"
 " -e <bundleName:uid:enable> set notification enabled for the bundle, eg: -e com.example:10100:1\n";
 
+static char g_enableObjectNull[] =
+"error: object is null\n"
+"error: object is null\n"
+"usage: anm setting [<options>]\n"
+"options list:\n  --help, -h                   help menu\n"
+"  --recent-count -c <number>   set the max count of recent notifications keeping in memory\n  --enable-notification"
+"  -e <bundleName:uid:enable> set notification enabled for the bundle, eg: -e com.example:10100:1\n";
+
 static char g_bundleName[] = "example";
 static char g_commandActive[] = "active";
 static char g_commandRecent[] = "recent";