Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingFailureMechanismContextTreeNodeInfoTest.cs
===================================================================
diff -u -rd68597572782f79b39b7d74844040cec22584b6d -re973ab8c1e544eed031185ca91fc738297d8b08d
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingFailureMechanismContextTreeNodeInfoTest.cs	(.../PipingFailureMechanismContextTreeNodeInfoTest.cs)	(revision d68597572782f79b39b7d74844040cec22584b6d)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingFailureMechanismContextTreeNodeInfoTest.cs	(.../PipingFailureMechanismContextTreeNodeInfoTest.cs)	(revision e973ab8c1e544eed031185ca91fc738297d8b08d)
@@ -1,4 +1,4 @@
-// Copyright (C) Stichting Deltares 2017. All rights reserved.
+// Copyright (C) Stichting Deltares 2018. All rights reserved.
 //
 // This file is part of Ringtoets.
 //
@@ -34,7 +34,6 @@
 using NUnit.Extensions.Forms;
 using NUnit.Framework;
 using Rhino.Mocks;
-using Ringtoets.AssemblyTool.KernelWrapper.Calculators;
 using Ringtoets.AssemblyTool.KernelWrapper.TestUtil.Calculators;
 using Ringtoets.AssemblyTool.KernelWrapper.TestUtil.Calculators.Categories;
 using Ringtoets.Common.Data;
@@ -47,6 +46,7 @@
 using Ringtoets.Piping.Data;
 using Ringtoets.Piping.Data.TestUtil;
 using Ringtoets.Piping.Forms.PresentationObjects;
+using Riskeer.AssemblyTool.KernelWrapper.Calculators;
 using RingtoetsCommonFormsResources = Ringtoets.Common.Forms.Properties.Resources;
 using CoreCommonGuiResources = Core.Common.Gui.Properties.Resources;
 
@@ -85,7 +85,7 @@
             Assert.IsNull(info.CanRemove);
             Assert.IsNull(info.OnNodeRemoved);
             Assert.IsNull(info.CanCheck);
-            Assert.IsNull(info.IsChecked);
+            Assert.IsNull(info.CheckedState);
             Assert.IsNull(info.OnNodeChecked);
             Assert.IsNull(info.CanDrag);
             Assert.IsNull(info.CanDrop);
@@ -186,7 +186,7 @@
 
                 failureMechanismAssemblyCategoriesContext.GetFailureMechanismSectionAssemblyCategoriesFunc();
                 PipingProbabilityAssessmentInput probabilityAssessmentInput = pipingFailureMechanism.PipingProbabilityAssessmentInput;
-                Assert.AreEqual(probabilityAssessmentInput.GetN(probabilityAssessmentInput.SectionLength), calculator.AssemblyCategoriesInput.N);
+                Assert.AreEqual(probabilityAssessmentInput.GetN(assessmentSection.ReferenceLine.Length), calculator.AssemblyCategoriesInput.N);
             }
 
             var failureMechanismScenariosContext = (PipingScenariosContext) outputsFolder.Contents.ElementAt(1);