Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/TreeNodeInfos/FailureMechanismContextTreeNodeInfoTest.cs
===================================================================
diff -u -r2ef5183542af0464fab4ebadb3a6c2c4f7ff46b7 -rc3641f1375abfabf1c8093037c0cccd3eb77d52a
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/TreeNodeInfos/FailureMechanismContextTreeNodeInfoTest.cs	(.../FailureMechanismContextTreeNodeInfoTest.cs)	(revision 2ef5183542af0464fab4ebadb3a6c2c4f7ff46b7)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/TreeNodeInfos/FailureMechanismContextTreeNodeInfoTest.cs	(.../FailureMechanismContextTreeNodeInfoTest.cs)	(revision c3641f1375abfabf1c8093037c0cccd3eb77d52a)
@@ -501,7 +501,7 @@
 
                 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<FailureMechanismContext<IFailureMechanism>>(failureMechanism, assessmentSection);