diff --git a/src/test/java/org/gcube/accounting/datamodel/aggreagtion/aggregationstrategy/StorageUsageRecordAggregationStrategyTest.java b/src/test/java/org/gcube/accounting/datamodel/aggreagtion/aggregationstrategy/StorageUsageRecordAggregationStrategyTest.java
index d35544e..32948bb 100644
--- a/src/test/java/org/gcube/accounting/datamodel/aggreagtion/aggregationstrategy/StorageUsageRecordAggregationStrategyTest.java
+++ b/src/test/java/org/gcube/accounting/datamodel/aggreagtion/aggregationstrategy/StorageUsageRecordAggregationStrategyTest.java
@@ -46,7 +46,7 @@ public class StorageUsageRecordAggregationStrategyTest {
 		logger.debug("Resulting Aggregated ServiceUsageRecord: {}", aggregated);
 		aggregated.validate();
 		
-		Assert.assertTrue(aggregated.getDataVolume() == ((firstDataVolume + secondDataVolume)/2));
+		Assert.assertTrue(aggregated.getDataVolume() == (firstDataVolume + secondDataVolume));
 		Assert.assertTrue(aggregated.getOperationCount() == 2);
 		
 	}
@@ -81,7 +81,7 @@ public class StorageUsageRecordAggregationStrategyTest {
 		logger.debug("Resulting Aggregated StorageUsageRecord: {}", aggregated);
 		aggregated.validate();
 		
-		Assert.assertTrue(aggregated.getDataVolume() == ((firstDataVolume + secondDataVolume)/2));
+		Assert.assertTrue(aggregated.getDataVolume() == (firstDataVolume + secondDataVolume));
 		Assert.assertTrue(aggregated.getOperationCount() == 2);
 		
 	}
@@ -113,7 +113,7 @@ public class StorageUsageRecordAggregationStrategyTest {
 			logger.debug("Resulting Aggregated StorageUsageRecord : {}", aggregated);
 			aggregated.validate();
 			
-			Assert.assertTrue(aggregated.getDataVolume() == ((oldDataVolume + newDataVolume)/2));
+			Assert.assertTrue(aggregated.getDataVolume() == (oldDataVolume + newDataVolume));
 			Assert.assertTrue(aggregated.getOperationCount() == i);
 			
 		}