Index: Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/PropertyClasses/StandAlone/MacroStabilityOutwardsFailureMechanismPropertiesTest.cs
===================================================================
diff -u -r9310242df6e13b00a66aa170a44303345482aea1 -r7b2db77245fe1c6f53c3be7b9afda32efbd92732
--- Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/PropertyClasses/StandAlone/MacroStabilityOutwardsFailureMechanismPropertiesTest.cs	(.../MacroStabilityOutwardsFailureMechanismPropertiesTest.cs)	(revision 9310242df6e13b00a66aa170a44303345482aea1)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/PropertyClasses/StandAlone/MacroStabilityOutwardsFailureMechanismPropertiesTest.cs	(.../MacroStabilityOutwardsFailureMechanismPropertiesTest.cs)	(revision 7b2db77245fe1c6f53c3be7b9afda32efbd92732)
@@ -85,6 +85,8 @@
             var assessmentSection = mocks.Stub<IAssessmentSection>();
             mocks.ReplayAll();
 
+            assessmentSection.ReferenceLine = new ReferenceLine();
+
             var failureMechanism = new MacroStabilityOutwardsFailureMechanism
             {
                 IsRelevant = isRelevant
Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Forms.Test/PropertyClasses/MacroStabilityInwardsFailureMechanismPropertiesTest.cs
===================================================================
diff -u -r8135b9ec199f4ea57f175a5179a02a19bf2b6b0c -r7b2db77245fe1c6f53c3be7b9afda32efbd92732
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Forms.Test/PropertyClasses/MacroStabilityInwardsFailureMechanismPropertiesTest.cs	(.../MacroStabilityInwardsFailureMechanismPropertiesTest.cs)	(revision 8135b9ec199f4ea57f175a5179a02a19bf2b6b0c)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Forms.Test/PropertyClasses/MacroStabilityInwardsFailureMechanismPropertiesTest.cs	(.../MacroStabilityInwardsFailureMechanismPropertiesTest.cs)	(revision 7b2db77245fe1c6f53c3be7b9afda32efbd92732)
@@ -86,6 +86,8 @@
             var assessmentSection = mocks.Stub<IAssessmentSection>();
             mocks.ReplayAll();
 
+            assessmentSection.ReferenceLine = new ReferenceLine();
+
             var failureMechanism = new MacroStabilityInwardsFailureMechanism
             {
                 IsRelevant = isRelevant
Index: Ringtoets/Piping/test/Ringtoets.Piping.Forms.Test/PropertyClasses/PipingFailureMechanismPropertiesTest.cs
===================================================================
diff -u -rbc771ec1743c16b85b12a768f1fa10431be9948d -r7b2db77245fe1c6f53c3be7b9afda32efbd92732
--- Ringtoets/Piping/test/Ringtoets.Piping.Forms.Test/PropertyClasses/PipingFailureMechanismPropertiesTest.cs	(.../PipingFailureMechanismPropertiesTest.cs)	(revision bc771ec1743c16b85b12a768f1fa10431be9948d)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Forms.Test/PropertyClasses/PipingFailureMechanismPropertiesTest.cs	(.../PipingFailureMechanismPropertiesTest.cs)	(revision 7b2db77245fe1c6f53c3be7b9afda32efbd92732)
@@ -112,6 +112,8 @@
             var handler = mocks.Stub<IFailureMechanismPropertyChangeHandler<PipingFailureMechanism>>();
             mocks.ReplayAll();
 
+            assessmentSection.ReferenceLine = new ReferenceLine();
+
             // Call
             var properties = new PipingFailureMechanismProperties(failureMechanism, assessmentSection, handler);
 
Index: Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Forms.Test/PropertyClasses/WaveImpactAsphaltCoverFailureMechanismPropertiesTest.cs
===================================================================
diff -u -r4b991cdae80a56866a617779fb85ad68483852a2 -r7b2db77245fe1c6f53c3be7b9afda32efbd92732
--- Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Forms.Test/PropertyClasses/WaveImpactAsphaltCoverFailureMechanismPropertiesTest.cs	(.../WaveImpactAsphaltCoverFailureMechanismPropertiesTest.cs)	(revision 4b991cdae80a56866a617779fb85ad68483852a2)
+++ Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Forms.Test/PropertyClasses/WaveImpactAsphaltCoverFailureMechanismPropertiesTest.cs	(.../WaveImpactAsphaltCoverFailureMechanismPropertiesTest.cs)	(revision 7b2db77245fe1c6f53c3be7b9afda32efbd92732)
@@ -87,6 +87,8 @@
             var assessmentSection = mocks.Stub<IAssessmentSection>();
             mocks.ReplayAll();
 
+            assessmentSection.ReferenceLine = new ReferenceLine();
+
             var failureMechanism = new WaveImpactAsphaltCoverFailureMechanism
             {
                 IsRelevant = isRelevant