Index: Ringtoets/Demo/test/Ringtoets.Demo.Test/Commands/AddNewDemoDikeAssessmentSectionCommandTest.cs
===================================================================
diff -u -rd121feba5299c86d7ac04a366ee869b163e43ec7 -red0b4ea830beb801bcc0e3eb5b28993001ed2981
--- Ringtoets/Demo/test/Ringtoets.Demo.Test/Commands/AddNewDemoDikeAssessmentSectionCommandTest.cs	(.../AddNewDemoDikeAssessmentSectionCommandTest.cs)	(revision d121feba5299c86d7ac04a366ee869b163e43ec7)
+++ Ringtoets/Demo/test/Ringtoets.Demo.Test/Commands/AddNewDemoDikeAssessmentSectionCommandTest.cs	(.../AddNewDemoDikeAssessmentSectionCommandTest.cs)	(revision ed0b4ea830beb801bcc0e3eb5b28993001ed2981)
@@ -69,7 +69,7 @@
             Assert.AreEqual(4, surfaceLines.Length);
 
             Assert.AreEqual(1, demoAssessmentSection.PipingFailureMechanism.Calculations.Count);
-            var calculation = demoAssessmentSection.PipingFailureMechanism.Calculations.First();
+            var calculation = demoAssessmentSection.PipingFailureMechanism.Calculations.GetPipingCalculations().First();
             AssertCalculationAbleToCalculate(calculation);
             mocks.VerifyAll();
         }