Index: Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Service.Test/StabilityPointStructuresDataSynchronizationServiceTest.cs
===================================================================
diff -u -r716528adfed212743b359ecaf540a1027dbceb65 -re82f04fb50a7b5a6f9c45289258c00c94aa8c64c
--- Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Service.Test/StabilityPointStructuresDataSynchronizationServiceTest.cs	(.../StabilityPointStructuresDataSynchronizationServiceTest.cs)	(revision 716528adfed212743b359ecaf540a1027dbceb65)
+++ Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Service.Test/StabilityPointStructuresDataSynchronizationServiceTest.cs	(.../StabilityPointStructuresDataSynchronizationServiceTest.cs)	(revision e82f04fb50a7b5a6f9c45289258c00c94aa8c64c)
@@ -50,8 +50,9 @@
         {
             // Setup
             StabilityPointStructuresFailureMechanism failureMechanism = CreateFullyConfiguredFailureMechanism();
-            var expectedAffectedCalculations = failureMechanism.Calculations.Where(c => c.HasOutput)
-                                                               .ToArray();
+            ICalculation[] expectedAffectedCalculations = failureMechanism.Calculations
+                                                                          .Where(c => c.HasOutput)
+                                                                          .ToArray();
 
             // Call
             IEnumerable<StructuresCalculation<StabilityPointStructuresInput>> affectedItems =
@@ -78,9 +79,9 @@
         {
             // Setup
             StabilityPointStructuresFailureMechanism failureMechanism = CreateFullyConfiguredFailureMechanism();
-            var expectedAffectedCalculations = failureMechanism.Calculations.Cast<StructuresCalculation<StabilityPointStructuresInput>>()
-                                                               .Where(c => c.InputParameters.HydraulicBoundaryLocation != null || c.HasOutput)
-                                                               .ToArray();
+            StructuresCalculation<StabilityPointStructuresInput>[] expectedAffectedCalculations = failureMechanism.Calculations.Cast<StructuresCalculation<StabilityPointStructuresInput>>()
+                                                                                                                  .Where(c => c.InputParameters.HydraulicBoundaryLocation != null || c.HasOutput)
+                                                                                                                  .ToArray();
 
             // Call
             IEnumerable<StructuresCalculation<StabilityPointStructuresInput>> affectedItems =
@@ -143,14 +144,17 @@
             failureMechanism.CalculationsGroup.Children.Add(calculationWithOutput);
             failureMechanism.CalculationsGroup.Children.Add(calculationWithOutputAndHydraulicBoundaryLocation);
             failureMechanism.CalculationsGroup.Children.Add(calculationWithHydraulicBoundaryLocation);
+            failureMechanism.CalculationsGroup.Children.Add(new CalculationGroup
+            {
+                Children =
+                {
+                    subCalculation,
+                    subCalculationWithOutput,
+                    subCalculationWithOutputAndHydraulicBoundaryLocation,
+                    subCalculationWithHydraulicBoundaryLocation
+                }
+            });
 
-            var calculationGroup = new CalculationGroup();
-            calculationGroup.Children.Add(subCalculation);
-            calculationGroup.Children.Add(subCalculationWithOutput);
-            calculationGroup.Children.Add(subCalculationWithOutputAndHydraulicBoundaryLocation);
-            calculationGroup.Children.Add(subCalculationWithHydraulicBoundaryLocation);
-            failureMechanism.CalculationsGroup.Children.Add(calculationGroup);
-
             return failureMechanism;
         }
     }