public async Task BatchNotification_ReportsOperationCount()
        {
            var store = new MobileServiceLocalStoreMock();
            var trackingContext = new StoreTrackingContext(StoreOperationSource.ServerPull, string.Empty);
            var eventManager = new MobileServiceEventManagerMock<IMobileServiceEvent>();
            var settings = new MobileServiceSyncSettingsManager(store);
            var changeTracker = new LocalStoreChangeTracker(store, trackingContext, eventManager, settings);

            EnqueueSimpleObjectResponse(store, "123", "XXX", "789");

            await changeTracker.UpsertAsync("test", new JObject() { { "id", "123" }, { "version", "2" } }, true); // Update
            await changeTracker.UpsertAsync("test", new JObject() { { "id", "456" }, { "version", "2" } }, true); // Insert
            await changeTracker.DeleteAsync("test", "789"); // Delete

            StoreOperationsBatchCompletedEvent batchEvent = null;
            eventManager.PublishAsyncFunc = e =>
            {
                batchEvent = e as StoreOperationsBatchCompletedEvent;
                return Task.FromResult(0);
            };

            changeTracker.Dispose();

            Assert.IsNotNull(batchEvent);
            Assert.AreEqual(batchEvent.Batch.OperationCount, 3);
            Assert.AreEqual(batchEvent.Batch.GetOperationCountByKind(LocalStoreOperationKind.Update), 1);
            Assert.AreEqual(batchEvent.Batch.GetOperationCountByKind(LocalStoreOperationKind.Insert), 1);
            Assert.AreEqual(batchEvent.Batch.GetOperationCountByKind(LocalStoreOperationKind.Delete), 1);
        }
        public async Task DeleteAsync_WithTableNameAndRecordIds_SendsNotification()
        {
            var store = new MobileServiceLocalStoreMock();
            var trackingContext = new StoreTrackingContext(StoreOperationSource.Local, string.Empty);
            var eventManager = new MobileServiceEventManagerMock<IMobileServiceEvent>();
            var settings = new MobileServiceSyncSettingsManager(store);
            var changeTracker = new LocalStoreChangeTracker(store, trackingContext, eventManager, settings);

            JObject item = EnqueueSimpleObjectResponse(store);

            StoreOperationCompletedEvent operationEvent = null;
            eventManager.PublishAsyncFunc = t =>
            {
                operationEvent = t as StoreOperationCompletedEvent;
                return Task.FromResult(0);
            };

            await changeTracker.DeleteAsync("test", "123");

            Assert.IsNotNull(operationEvent);
            Assert.AreEqual(operationEvent.Operation.Kind, LocalStoreOperationKind.Delete);
            Assert.AreEqual(operationEvent.Operation.RecordId, "123");
            Assert.AreEqual(operationEvent.Operation.TableName, "test");
        }
        public async Task DeleteAsync_WithQuery_SendsNotification()
        {
            var store = new MobileServiceLocalStoreMock();
            var trackingContext = new StoreTrackingContext(StoreOperationSource.Local, string.Empty);
            var eventManager = new MobileServiceEventManagerMock<IMobileServiceEvent>();
            var settings = new MobileServiceSyncSettingsManager(store);
            var changeTracker = new LocalStoreChangeTracker(store, trackingContext, eventManager, settings);

            JObject item = EnqueueSimpleObjectResponse(store);

            StoreOperationCompletedEvent operationEvent = null;
            eventManager.PublishAsyncFunc = t =>
            {
                operationEvent = t as StoreOperationCompletedEvent;
                return Task.FromResult(0);
            };

            MobileServiceTableQueryDescription query = new MobileServiceTableQueryDescription("test");
            query.Filter = new BinaryOperatorNode(BinaryOperatorKind.Equal, new MemberAccessNode(null, MobileServiceSystemColumns.Id), new ConstantNode("123"));

            await changeTracker.DeleteAsync(query);

            Assert.IsNotNull(operationEvent);
            Assert.AreEqual(operationEvent.Operation.Kind, LocalStoreOperationKind.Delete);
            Assert.AreEqual(operationEvent.Operation.RecordId, "123");
            Assert.AreEqual(operationEvent.Operation.TableName, "test");
        }