Modify use case

Signed-off-by: N廖康康 <liaokangkang@huawei.com>

resourceschedule/resourceschedule_standard/backgroundtaskmanager/src/main/js/default/test/BackgroundTaskMagrJs.test.js

@@ -144,7 +144,7 @@ describe("TransientTaskJsTest", function () {
         }
 
         backgroundTaskManager.getRemainingDelayTime(info.requestId, (err, res) => {
-            if (err.data === 0) {
+            if (!err) {
                 console.info('TransientTaskJsTest004  backgroundTaskManager success, delaytime:' + res);
                 expect(true).assertTrue();