Index: Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Util.TestUtil/GrassCoverErosionOutwardsHydraulicBoundaryLocationsTestHelper.cs
===================================================================
diff -u -r98bb82fc9a5d16eab7a9d25b69f20806ef10a1f1 -r22937a4c42a0ae32f8210f7d8d6c5f5a380211f1
--- Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Util.TestUtil/GrassCoverErosionOutwardsHydraulicBoundaryLocationsTestHelper.cs	(.../GrassCoverErosionOutwardsHydraulicBoundaryLocationsTestHelper.cs)	(revision 98bb82fc9a5d16eab7a9d25b69f20806ef10a1f1)
+++ Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Util.TestUtil/GrassCoverErosionOutwardsHydraulicBoundaryLocationsTestHelper.cs	(.../GrassCoverErosionOutwardsHydraulicBoundaryLocationsTestHelper.cs)	(revision 22937a4c42a0ae32f8210f7d8d6c5f5a380211f1)
@@ -56,12 +56,12 @@
 
             if (setCalculationOutput)
             {
-                CreateHydraulicBoundaryLocationCalculationsOutput(failureMechanism.WaterLevelCalculationsForMechanismSpecificFactorizedSignalingNorm);
-                CreateHydraulicBoundaryLocationCalculationsOutput(failureMechanism.WaterLevelCalculationsForMechanismSpecificSignalingNorm);
-                CreateHydraulicBoundaryLocationCalculationsOutput(failureMechanism.WaterLevelCalculationsForMechanismSpecificLowerLimitNorm);
-                CreateHydraulicBoundaryLocationCalculationsOutput(failureMechanism.WaveHeightCalculationsForMechanismSpecificFactorizedSignalingNorm);
-                CreateHydraulicBoundaryLocationCalculationsOutput(failureMechanism.WaveHeightCalculationsForMechanismSpecificSignalingNorm);
-                CreateHydraulicBoundaryLocationCalculationsOutput(failureMechanism.WaveHeightCalculationsForMechanismSpecificLowerLimitNorm);
+                SetHydraulicBoundaryLocationCalculationsOutput(failureMechanism.WaterLevelCalculationsForMechanismSpecificFactorizedSignalingNorm);
+                SetHydraulicBoundaryLocationCalculationsOutput(failureMechanism.WaterLevelCalculationsForMechanismSpecificSignalingNorm);
+                SetHydraulicBoundaryLocationCalculationsOutput(failureMechanism.WaterLevelCalculationsForMechanismSpecificLowerLimitNorm);
+                SetHydraulicBoundaryLocationCalculationsOutput(failureMechanism.WaveHeightCalculationsForMechanismSpecificFactorizedSignalingNorm);
+                SetHydraulicBoundaryLocationCalculationsOutput(failureMechanism.WaveHeightCalculationsForMechanismSpecificSignalingNorm);
+                SetHydraulicBoundaryLocationCalculationsOutput(failureMechanism.WaveHeightCalculationsForMechanismSpecificLowerLimitNorm);
             }
         }
 
@@ -83,7 +83,8 @@
                                    .Concat(failureMechanism.WaterLevelCalculationsForMechanismSpecificLowerLimitNorm.Where(HasHydraulicBoundaryLocationCalculationOutput))
                                    .Concat(failureMechanism.WaveHeightCalculationsForMechanismSpecificFactorizedSignalingNorm.Where(HasHydraulicBoundaryLocationCalculationOutput))
                                    .Concat(failureMechanism.WaveHeightCalculationsForMechanismSpecificSignalingNorm.Where(HasHydraulicBoundaryLocationCalculationOutput))
-                                   .Concat(failureMechanism.WaveHeightCalculationsForMechanismSpecificLowerLimitNorm.Where(HasHydraulicBoundaryLocationCalculationOutput));
+                                   .Concat(failureMechanism.WaveHeightCalculationsForMechanismSpecificLowerLimitNorm.Where(HasHydraulicBoundaryLocationCalculationOutput))
+                                   .ToArray();
         }
 
         /// <summary>
@@ -92,6 +93,8 @@
         /// </summary>
         /// <param name="failureMechanism">The failure mechanism to assert.</param>
         /// <exception cref="ArgumentNullException">Thrown when <paramref name="failureMechanism"/> is <c>null</c>.</exception>
+        /// <exception cref="AssertionException">Thrown when any of the hydraulic boundary location calculations within the 
+        /// <paramref name="failureMechanism"/>contains output.</exception>
         public static void AssertHydraulicBoundaryLocationCalculationsHaveNoOutputs(GrassCoverErosionOutwardsFailureMechanism failureMechanism)
         {
             if (failureMechanism == null)
@@ -107,7 +110,7 @@
             Assert.IsFalse(failureMechanism.WaveHeightCalculationsForMechanismSpecificLowerLimitNorm.All(HasHydraulicBoundaryLocationCalculationOutput));
         }
 
-        private static void CreateHydraulicBoundaryLocationCalculationsOutput(
+        private static void SetHydraulicBoundaryLocationCalculationsOutput(
             IEnumerable<HydraulicBoundaryLocationCalculation> hydraulicBoundaryLocationCalculations)
         {
             foreach (HydraulicBoundaryLocationCalculation hydraulicBoundaryLocationCalculation in hydraulicBoundaryLocationCalculations)