Index: Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Forms.Test/TreeNodeInfos/GrassCoverErosionInwardsCalculationContextTreeNodeInfoTest.cs
===================================================================
diff -u -rdd776cec9fe4d6fe0c3276dbb2ed371c72d43082 -r0e8590d1ba6edc87a2ac73240662bfcf45f20914
--- Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Forms.Test/TreeNodeInfos/GrassCoverErosionInwardsCalculationContextTreeNodeInfoTest.cs	(.../GrassCoverErosionInwardsCalculationContextTreeNodeInfoTest.cs)	(revision dd776cec9fe4d6fe0c3276dbb2ed371c72d43082)
+++ Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Forms.Test/TreeNodeInfos/GrassCoverErosionInwardsCalculationContextTreeNodeInfoTest.cs	(.../GrassCoverErosionInwardsCalculationContextTreeNodeInfoTest.cs)	(revision 0e8590d1ba6edc87a2ac73240662bfcf45f20914)
@@ -108,7 +108,7 @@
             var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
             mocks.ReplayAll();
 
-            var calculation = new GrassCoverErosionInwardsCalculation(new ProbabilityAssessmentInput());
+            var calculation = new GrassCoverErosionInwardsCalculation();
             var failureMechanism = new GrassCoverErosionInwardsFailureMechanism();
             var calculationContext = new GrassCoverErosionInwardsCalculationContext(calculation, failureMechanism, assessmentSectionMock);
 
@@ -138,7 +138,7 @@
             var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
             mocks.ReplayAll();
 
-            var calculation = new GrassCoverErosionInwardsCalculation(new ProbabilityAssessmentInput())
+            var calculation = new GrassCoverErosionInwardsCalculation
             {
                 Output = new ProbabilityAssessmentOutput(0, 0, 0, 0, 0)
             };
@@ -173,7 +173,7 @@
             var treeViewControlMock = mocks.StrictMock<TreeViewControl>();
             var failureMechanism = new GrassCoverErosionInwardsFailureMechanism();
             var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
-            var calculation = new GrassCoverErosionInwardsCalculation(new ProbabilityAssessmentInput());
+            var calculation = new GrassCoverErosionInwardsCalculation();
             var nodeData = new GrassCoverErosionInwardsCalculationContext(calculation, failureMechanism, assessmentSectionMock);
             var menuBuilderMock = mocks.Stub<IContextMenuBuilder>();
 
@@ -212,7 +212,7 @@
             var treeViewControlMock = mocks.StrictMock<TreeViewControl>();
             var failureMechanism = new GrassCoverErosionInwardsFailureMechanism();
             var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
-            var calculation = new GrassCoverErosionInwardsCalculation(new ProbabilityAssessmentInput());
+            var calculation = new GrassCoverErosionInwardsCalculation();
             var nodeData = new GrassCoverErosionInwardsCalculationContext(calculation, failureMechanism, assessmentSectionMock);
             var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
             string validFilePath = Path.Combine(testDataPath, "complete.sqlite");
@@ -259,7 +259,7 @@
             var treeViewControlMock = mocks.StrictMock<TreeViewControl>();
             var failureMechanism = new GrassCoverErosionInwardsFailureMechanism();
             var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
-            var calculation = new GrassCoverErosionInwardsCalculation(new ProbabilityAssessmentInput());
+            var calculation = new GrassCoverErosionInwardsCalculation();
 
             var nodeData = new GrassCoverErosionInwardsCalculationContext(calculation, failureMechanism, assessmentSectionMock);
             var guiMock = mocks.StrictMock<IGui>();
@@ -298,8 +298,7 @@
             var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
             assessmentSectionMock.Expect(asm => asm.HydraulicBoundaryDatabase).Return(null);
 
-            var calculation = new GrassCoverErosionInwardsCalculation(new ProbabilityAssessmentInput());
-
+            var calculation = new GrassCoverErosionInwardsCalculation();
             var nodeData = new GrassCoverErosionInwardsCalculationContext(calculation, failureMechanism, assessmentSectionMock);
 
             guiMock.Expect(cmp => cmp.Get(nodeData, treeViewControlMock)).Return(new CustomItemsOnlyContextMenuBuilder());
@@ -337,8 +336,7 @@
             var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
             assessmentSectionMock.Stub(asm => asm.HydraulicBoundaryDatabase).Return(new HydraulicBoundaryDatabase());
 
-            var calculation = new GrassCoverErosionInwardsCalculation(new ProbabilityAssessmentInput());
-
+            var calculation = new GrassCoverErosionInwardsCalculation();
             var nodeData = new GrassCoverErosionInwardsCalculationContext(calculation, failureMechanism, assessmentSectionMock);
 
             guiMock.Expect(cmp => cmp.Get(nodeData, treeViewControlMock)).Return(new CustomItemsOnlyContextMenuBuilder());
@@ -385,8 +383,7 @@
             var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
             assessmentSectionMock.Stub(asm => asm.HydraulicBoundaryDatabase).Return(hydraulicBoundaryDatabase);
 
-            var calculation = new GrassCoverErosionInwardsCalculation(new ProbabilityAssessmentInput());
-
+            var calculation = new GrassCoverErosionInwardsCalculation();
             var nodeData = new GrassCoverErosionInwardsCalculationContext(calculation, failureMechanism, assessmentSectionMock);
 
             guiMock.Expect(cmp => cmp.Get(nodeData, treeViewControlMock)).Return(new CustomItemsOnlyContextMenuBuilder());
@@ -440,7 +437,7 @@
             {
                 HydraulicBoundaryDatabase = hydraulicBoundaryDatabase
             };
-            var calculation = new GrassCoverErosionInwardsCalculation(new ProbabilityAssessmentInput())
+            var calculation = new GrassCoverErosionInwardsCalculation
             {
                 Output = new ProbabilityAssessmentOutput(double.NaN, double.NaN, double.NaN, double.NaN, double.NaN),
                 InputParameters =
@@ -488,7 +485,7 @@
         {
             // Setup
             var group = new CalculationGroup();
-            var elementToBeRemoved = new GrassCoverErosionInwardsCalculation(new ProbabilityAssessmentInput());
+            var elementToBeRemoved = new GrassCoverErosionInwardsCalculation();
             var failureMechanism = new GrassCoverErosionInwardsFailureMechanism();
             var observerMock = mocks.StrictMock<IObserver>();
             var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
@@ -504,7 +501,7 @@
             mocks.ReplayAll();
 
             group.Children.Add(elementToBeRemoved);
-            group.Children.Add(new GrassCoverErosionInwardsCalculation(new ProbabilityAssessmentInput()));
+            group.Children.Add(new GrassCoverErosionInwardsCalculation());
             group.Attach(observerMock);
 
             // Precondition