Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/TreeNodeInfos/PipingStructureFailureMechanismContextTreeNodeInfoTest.cs
===================================================================
diff -u -r65ce8c5ab171b234e33e2291998c9d89276db896 -rc3641f1375abfabf1c8093037c0cccd3eb77d52a
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/TreeNodeInfos/PipingStructureFailureMechanismContextTreeNodeInfoTest.cs	(.../PipingStructureFailureMechanismContextTreeNodeInfoTest.cs)	(revision 65ce8c5ab171b234e33e2291998c9d89276db896)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/TreeNodeInfos/PipingStructureFailureMechanismContextTreeNodeInfoTest.cs	(.../PipingStructureFailureMechanismContextTreeNodeInfoTest.cs)	(revision c3641f1375abfabf1c8093037c0cccd3eb77d52a)
@@ -413,7 +413,7 @@
             var assessmentSection = mocks.Stub<IAssessmentSection>();
             var failureMechanism = mocks.StrictMultiMock<IHasSectionResults<T>>(typeof(IFailureMechanism));
             failureMechanism.Expect(fm => ((IFailureMechanism) fm).IsRelevant).Return(true);
-            failureMechanism.Expect(fm => fm.SectionResults).Return(new List<T>()).Repeat.Any();
+            failureMechanism.Expect(fm => fm.SectionResults).Return(new ObservableList<T>()).Repeat.Any();
             failureMechanism.Expect(fm => ((IFailureMechanism) fm).InputComments).Return(new Comment());
             failureMechanism.Expect(fm => ((IFailureMechanism) fm).OutputComments).Return(new Comment());
             var failureMechanismContext = mocks.Stub<PipingStructureFailureMechanismContext>(failureMechanism, assessmentSection);