#25: make test methods async

Test.GBase/GBaseIntegrationTest/Model.cs

@@ -36,16 +36,16 @@ namespace Test.GBase.GBaseIntegrationTest
             Groups = groupsTable.Entries;
         }
 
-        public void AddItem(IItem item, CancellationToken cancellationToken)
+        public async Task AddItem(IItem item, CancellationToken cancellationToken)
         {
             Items.Add(item);
-            _gBase.AddEntry(item, cancellationToken);
+            await _gBase.AddEntry(item, cancellationToken);
         }
 
-        public void AddGroup(IGroup group, CancellationToken cancellationToken)
+        public async Task AddGroup(IGroup group, CancellationToken cancellationToken)
         {
             Groups.Add(group);
-            _gBase.AddEntry(group, cancellationToken);
+            await _gBase.AddEntry(@group, cancellationToken);
         }
     }
 }