add statistics xts

Signed-off-by: Nzhangxingxia <zhangxingxia1@huawei.com>

storage/storagestatisticsjstest/entry/src/main/ets/test/StorageStatistics.test.ets

@@ -99,7 +99,7 @@ export default function storageStatisticsTest() {
         });
       } catch (error) {
         console.log("storage_statistics_test_get_current_bundle_stats_async_003 has failed for " + error);
-        expect(isInclude(error, "The callback shall be a function")).assertTrue();
+        expect(isInclude(error, "Number of arguments unmatched")).assertTrue();
         done();
       }
     });
@@ -107,7 +107,7 @@ export default function storageStatisticsTest() {
     /**
      * @tc.number SUB_DF_STORAGE_STATISTICS_GET_CURRENT_BUNDLE_STATS_0040
      * @tc.name storage_statistics_test_get_current_bundle_stats_async_004
-     * @tc.desc Test getCurrentBundleStats() interfaces, When there are no parameters.
+     * @tc.desc Test getCurrentBundleStats() interfaces,Concurrent requests.
      * @tc.size MEDIUM
      * @tc.type Function
      * @tc.level Level 0
@@ -115,11 +115,24 @@ export default function storageStatisticsTest() {
      */
     it("storage_statistics_test_get_current_bundle_stats_async_004", 0, async function (done) {
       try {
-        await storageStatistics.getCurrentBundleStats();
+        const delay = function delay() {
+          return new Promise((resolve, reject) => {
+            storageStatistics.getCurrentBundleStats((err, result)=>{
+              resolve(result);
+            })
+          });
+        };
+        let tasks = [delay(), delay(), delay(), delay()];
+        Promise.all(tasks).then(results => {
+          let flag = !results.some(function(value){
+            return JSON.stringify(value) !== JSON.stringify(results[0]);
+          })
+          expect(results.length == tasks.length).assertTrue();
+          expect(flag).assertTrue();
+          done();
+        });
       } catch (error) {
         console.log("storage_statistics_test_get_current_bundle_stats_async_004 has failed for " + error);
-        expect(isInclude(error, "The callback shall be a function")).assertTrue();
-        done();
       }
     })
   });