add test cases

Signed-off-by: Nbayanxing <bayanxing@kaihongdigi.com>

powermgr/powermgrbattery/src/main/js/default/test/battery_common_event.test.js

@@ -151,7 +151,7 @@ function createLockedBootCompletedSubscriber() {
         }).catch((error) => {
         console.error('Operation failed. Cause: ' + JSON.stringify(error));
     });
-}    
+}
 
 function createBootCompletedSubscriber() {
     var commonEventSubscribeInfo = {