Index: Ringtoets/Common/test/Ringtoets.Common.Data.TestUtil/ObservableTestAssessmentSectionStub.cs
===================================================================
diff -u -r7a4f8ff71ae5f81177fe5ff9cd78fdc7f24c69f4 -rd00d30719d5bffa635f40b975e490af4e4c298e9
--- Ringtoets/Common/test/Ringtoets.Common.Data.TestUtil/ObservableTestAssessmentSectionStub.cs	(.../ObservableTestAssessmentSectionStub.cs)	(revision 7a4f8ff71ae5f81177fe5ff9cd78fdc7f24c69f4)
+++ Ringtoets/Common/test/Ringtoets.Common.Data.TestUtil/ObservableTestAssessmentSectionStub.cs	(.../ObservableTestAssessmentSectionStub.cs)	(revision d00d30719d5bffa635f40b975e490af4e4c298e9)
@@ -40,7 +40,6 @@
         public ObservableTestAssessmentSectionStub()
         {
             FailureMechanismContribution = new FailureMechanismContribution(Enumerable.Empty<IFailureMechanism>(), 0, 1.0 / 300000);
-            BackgroundMapData = new BackgroundMapDataContainer();
             BackgroundData = new BackgroundData
             {
                 Name = "Background data"
@@ -54,8 +53,7 @@
         public ReferenceLine ReferenceLine { get; set; }
         public FailureMechanismContribution FailureMechanismContribution { get; }
         public HydraulicBoundaryDatabase HydraulicBoundaryDatabase { get; set; }
-        public BackgroundMapDataContainer BackgroundMapData { get; }
-        public BackgroundData BackgroundData { get; }
+        public BackgroundData BackgroundData { get; set; }
 
         public IEnumerable<IFailureMechanism> GetFailureMechanisms()
         {