Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Forms.Test/Views/MacroStabilityInwardsFailureMechanismViewTest.cs
===================================================================
diff -u -r738fde25d96e4f7dceebfe79be83dd8a2ea5e2b8 -rb696329ea2268bfb69b2f7f6956774538dd5a2f3
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Forms.Test/Views/MacroStabilityInwardsFailureMechanismViewTest.cs	(.../MacroStabilityInwardsFailureMechanismViewTest.cs)	(revision 738fde25d96e4f7dceebfe79be83dd8a2ea5e2b8)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Forms.Test/Views/MacroStabilityInwardsFailureMechanismViewTest.cs	(.../MacroStabilityInwardsFailureMechanismViewTest.cs)	(revision b696329ea2268bfb69b2f7f6956774538dd5a2f3)
@@ -201,7 +201,10 @@
             {
                 ReferenceLine = referenceLine
             };
-            assessmentSection.AddHydraulicBoundaryLocation(new HydraulicBoundaryLocation(1, "test", 1.0, 2.0));
+            assessmentSection.SetHydraulicBoundaryLocationCalculations(new[]
+            {
+                new HydraulicBoundaryLocation(1, "test", 1.0, 2.0)
+            });
 
             // Call
             using (var view = new MacroStabilityInwardsFailureMechanismView(failureMechanism, assessmentSection))
@@ -230,7 +233,10 @@
         {
             // Given
             var assessmentSection = new ObservableTestAssessmentSectionStub();
-            assessmentSection.AddHydraulicBoundaryLocation(new HydraulicBoundaryLocation(1, "test", 1.0, 2.0));
+            assessmentSection.SetHydraulicBoundaryLocationCalculations(new[]
+            {
+                new HydraulicBoundaryLocation(1, "test", 1.0, 2.0)
+            });
 
             using (var view = new MacroStabilityInwardsFailureMechanismView(new MacroStabilityInwardsFailureMechanism(), assessmentSection))
             {
@@ -247,7 +253,11 @@
                 MapDataTestHelper.AssertHydraulicBoundaryLocationsMapData(assessmentSection.HydraulicBoundaryDatabase.Locations, hydraulicBoundaryLocationsMapData);
 
                 // When
-                assessmentSection.AddHydraulicBoundaryLocation(new HydraulicBoundaryLocation(2, "test2", 2.0, 3.0));
+                assessmentSection.SetHydraulicBoundaryLocationCalculations(new[]
+                {
+                    new HydraulicBoundaryLocation(1, "test", 1.0, 2.0),
+                    new HydraulicBoundaryLocation(2, "test2", 2.0, 3.0)
+                });
                 assessmentSection.HydraulicBoundaryDatabase.Locations.NotifyObservers();
 
                 // Then
@@ -264,7 +274,10 @@
             // Given
             var hydraulicBoundaryLocation = new HydraulicBoundaryLocation(1, "test1", 1.0, 2.0);
             var assessmentSection = new ObservableTestAssessmentSectionStub();
-            assessmentSection.AddHydraulicBoundaryLocation(hydraulicBoundaryLocation);
+            assessmentSection.SetHydraulicBoundaryLocationCalculations(new[]
+            {
+                hydraulicBoundaryLocation
+            });
 
             using (var view = new MacroStabilityInwardsFailureMechanismView(new MacroStabilityInwardsFailureMechanism(), assessmentSection))
             {