Index: Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/PropertyClasses/ReferenceLinePropertiesTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/PropertyClasses/ReferenceLinePropertiesTest.cs	(.../ReferenceLinePropertiesTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/PropertyClasses/ReferenceLinePropertiesTest.cs	(.../ReferenceLinePropertiesTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -74,22 +74,20 @@
             var random = new Random(39);
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
-            var referenceLine = new ReferenceLine();
             var geometry = new[]
             {
                 new Point2D(random.NextDouble(), random.NextDouble()),
                 new Point2D(random.NextDouble(), random.NextDouble())
             };
-            referenceLine.SetGeometry(geometry);
-            assessmentSection.ReferenceLine = referenceLine;
+            assessmentSection.ReferenceLine.SetGeometry(geometry);
             mocks.ReplayAll();
 
             // Call
             var properties = new ReferenceLineProperties(assessmentSection);
 
             // Assert
             Assert.AreEqual(2, properties.Length.NumberOfDecimalPlaces);
-            Assert.AreEqual(referenceLine.Length, properties.Length, properties.Length.GetAccuracy());
+            Assert.AreEqual(assessmentSection.ReferenceLine.Length, properties.Length, properties.Length.GetAccuracy());
             CollectionAssert.AreEqual(geometry, properties.Geometry);
             mocks.VerifyAll();
         }
@@ -100,10 +98,9 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(new ReferenceLine());
             mocks.ReplayAll();
 
-            assessmentSection.ReferenceLine = new ReferenceLine();
-
             // Call
             var properties = new ReferenceLineProperties(assessmentSection);
 
Index: Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/PropertyClasses/StandAlone/MacroStabilityOutwardsFailureMechanismPropertiesTest.cs
===================================================================
diff -u -r7b2db77245fe1c6f53c3be7b9afda32efbd92732 -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/PropertyClasses/StandAlone/MacroStabilityOutwardsFailureMechanismPropertiesTest.cs	(.../MacroStabilityOutwardsFailureMechanismPropertiesTest.cs)	(revision 7b2db77245fe1c6f53c3be7b9afda32efbd92732)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/PropertyClasses/StandAlone/MacroStabilityOutwardsFailureMechanismPropertiesTest.cs	(.../MacroStabilityOutwardsFailureMechanismPropertiesTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -83,10 +83,9 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(new ReferenceLine());
             mocks.ReplayAll();
 
-            assessmentSection.ReferenceLine = new ReferenceLine();
-
             var failureMechanism = new MacroStabilityOutwardsFailureMechanism
             {
                 IsRelevant = isRelevant
Index: Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableDuneErosionFailureMechanismFactoryTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableDuneErosionFailureMechanismFactoryTest.cs	(.../ExportableDuneErosionFailureMechanismFactoryTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableDuneErosionFailureMechanismFactoryTest.cs	(.../ExportableDuneErosionFailureMechanismFactoryTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -77,10 +77,9 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(ReferenceLineTestFactory.CreateReferenceLineWithGeometry());
             mocks.ReplayAll();
 
-            assessmentSection.ReferenceLine = ReferenceLineTestFactory.CreateReferenceLineWithGeometry();
-
             var random = new Random(21);
             var failureMechanism = new DuneErosionFailureMechanism
             {
Index: Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableFailureMechanismFactoryTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableFailureMechanismFactoryTest.cs	(.../ExportableFailureMechanismFactoryTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableFailureMechanismFactoryTest.cs	(.../ExportableFailureMechanismFactoryTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -57,11 +57,9 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(ReferenceLineTestFactory.CreateReferenceLineWithGeometry());
             mocks.ReplayAll();
 
-            ReferenceLine referenceLine = ReferenceLineTestFactory.CreateReferenceLineWithGeometry();
-            assessmentSection.ReferenceLine = referenceLine;
-
             var random = new Random(21);
             var group = random.NextEnumValue<ExportableFailureMechanismGroup>();
             var failureMechanismCode = random.NextEnumValue<ExportableFailureMechanismType>();
@@ -107,11 +105,9 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(ReferenceLineTestFactory.CreateReferenceLineWithGeometry());
             mocks.ReplayAll();
 
-            ReferenceLine referenceLine = ReferenceLineTestFactory.CreateReferenceLineWithGeometry();
-            assessmentSection.ReferenceLine = referenceLine;
-
             var random = new Random(21);
             var group = random.NextEnumValue<ExportableFailureMechanismGroup>();
             var failureMechanismCode = random.NextEnumValue<ExportableFailureMechanismType>();
Index: Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableGrassCoverErosionOutwardsFailureMechanismFactoryTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableGrassCoverErosionOutwardsFailureMechanismFactoryTest.cs	(.../ExportableGrassCoverErosionOutwardsFailureMechanismFactoryTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableGrassCoverErosionOutwardsFailureMechanismFactoryTest.cs	(.../ExportableGrassCoverErosionOutwardsFailureMechanismFactoryTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -77,10 +77,9 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(ReferenceLineTestFactory.CreateReferenceLineWithGeometry());
             mocks.ReplayAll();
 
-            assessmentSection.ReferenceLine = ReferenceLineTestFactory.CreateReferenceLineWithGeometry();
-
             var random = new Random(21);
             var failureMechanism = new GrassCoverErosionOutwardsFailureMechanism
             {
Index: Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableGrassCoverSlipOffInwardsFailureMechanismFactoryTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableGrassCoverSlipOffInwardsFailureMechanismFactoryTest.cs	(.../ExportableGrassCoverSlipOffInwardsFailureMechanismFactoryTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableGrassCoverSlipOffInwardsFailureMechanismFactoryTest.cs	(.../ExportableGrassCoverSlipOffInwardsFailureMechanismFactoryTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -79,10 +79,9 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(ReferenceLineTestFactory.CreateReferenceLineWithGeometry());
             mocks.ReplayAll();
 
-            assessmentSection.ReferenceLine = ReferenceLineTestFactory.CreateReferenceLineWithGeometry();
-
             var random = new Random(21);
             var failureMechanism = new GrassCoverSlipOffInwardsFailureMechanism
             {
Index: Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableGrassCoverSlipOffOutwardsFailureMechanismFactoryTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableGrassCoverSlipOffOutwardsFailureMechanismFactoryTest.cs	(.../ExportableGrassCoverSlipOffOutwardsFailureMechanismFactoryTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableGrassCoverSlipOffOutwardsFailureMechanismFactoryTest.cs	(.../ExportableGrassCoverSlipOffOutwardsFailureMechanismFactoryTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -79,10 +79,9 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(ReferenceLineTestFactory.CreateReferenceLineWithGeometry());
             mocks.ReplayAll();
 
-            assessmentSection.ReferenceLine = ReferenceLineTestFactory.CreateReferenceLineWithGeometry();
-
             var random = new Random(21);
             var failureMechanism = new GrassCoverSlipOffOutwardsFailureMechanism
             {
Index: Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableMicrostabilityFailureMechanismFactoryTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableMicrostabilityFailureMechanismFactoryTest.cs	(.../ExportableMicrostabilityFailureMechanismFactoryTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableMicrostabilityFailureMechanismFactoryTest.cs	(.../ExportableMicrostabilityFailureMechanismFactoryTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -79,10 +79,9 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(ReferenceLineTestFactory.CreateReferenceLineWithGeometry());
             mocks.ReplayAll();
 
-            assessmentSection.ReferenceLine = ReferenceLineTestFactory.CreateReferenceLineWithGeometry();
-
             var random = new Random(21);
             var failureMechanism = new MicrostabilityFailureMechanism
             {
Index: Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportablePipingStructureFailureMechanismFactoryTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportablePipingStructureFailureMechanismFactoryTest.cs	(.../ExportablePipingStructureFailureMechanismFactoryTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportablePipingStructureFailureMechanismFactoryTest.cs	(.../ExportablePipingStructureFailureMechanismFactoryTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -77,10 +77,9 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(ReferenceLineTestFactory.CreateReferenceLineWithGeometry());
             mocks.ReplayAll();
 
-            assessmentSection.ReferenceLine = ReferenceLineTestFactory.CreateReferenceLineWithGeometry();
-
             var random = new Random(21);
             var failureMechanism = new PipingStructureFailureMechanism
             {
Index: Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableStabilityStoneCoverFailureMechanismFactoryTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableStabilityStoneCoverFailureMechanismFactoryTest.cs	(.../ExportableStabilityStoneCoverFailureMechanismFactoryTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableStabilityStoneCoverFailureMechanismFactoryTest.cs	(.../ExportableStabilityStoneCoverFailureMechanismFactoryTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -77,10 +77,9 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(ReferenceLineTestFactory.CreateReferenceLineWithGeometry());
             mocks.ReplayAll();
 
-            assessmentSection.ReferenceLine = ReferenceLineTestFactory.CreateReferenceLineWithGeometry();
-
             var random = new Random(21);
             var failureMechanism = new StabilityStoneCoverFailureMechanism
             {
Index: Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableStrengthStabilityLengthwiseConstructionFailureMechanismFactoryTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableStrengthStabilityLengthwiseConstructionFailureMechanismFactoryTest.cs	(.../ExportableStrengthStabilityLengthwiseConstructionFailureMechanismFactoryTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableStrengthStabilityLengthwiseConstructionFailureMechanismFactoryTest.cs	(.../ExportableStrengthStabilityLengthwiseConstructionFailureMechanismFactoryTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -79,10 +79,9 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(ReferenceLineTestFactory.CreateReferenceLineWithGeometry());
             mocks.ReplayAll();
 
-            assessmentSection.ReferenceLine = ReferenceLineTestFactory.CreateReferenceLineWithGeometry();
-
             var random = new Random(21);
             var failureMechanism = new StrengthStabilityLengthwiseConstructionFailureMechanism
             {
Index: Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableTechnicalInnovationFailureMechanismFactoryTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableTechnicalInnovationFailureMechanismFactoryTest.cs	(.../ExportableTechnicalInnovationFailureMechanismFactoryTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableTechnicalInnovationFailureMechanismFactoryTest.cs	(.../ExportableTechnicalInnovationFailureMechanismFactoryTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -79,10 +79,9 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(ReferenceLineTestFactory.CreateReferenceLineWithGeometry());
             mocks.ReplayAll();
 
-            assessmentSection.ReferenceLine = ReferenceLineTestFactory.CreateReferenceLineWithGeometry();
-
             var random = new Random(21);
             var failureMechanism = new TechnicalInnovationFailureMechanism
             {
Index: Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableWaterPressureAsphaltCoverFailureMechanismFactoryTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableWaterPressureAsphaltCoverFailureMechanismFactoryTest.cs	(.../ExportableWaterPressureAsphaltCoverFailureMechanismFactoryTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableWaterPressureAsphaltCoverFailureMechanismFactoryTest.cs	(.../ExportableWaterPressureAsphaltCoverFailureMechanismFactoryTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -79,10 +79,9 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(ReferenceLineTestFactory.CreateReferenceLineWithGeometry());
             mocks.ReplayAll();
 
-            assessmentSection.ReferenceLine = ReferenceLineTestFactory.CreateReferenceLineWithGeometry();
-
             var random = new Random(21);
             var failureMechanism = new WaterPressureAsphaltCoverFailureMechanism
             {
Index: Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableWaveImpactAsphaltCoverFailureMechanismFactoryTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableWaveImpactAsphaltCoverFailureMechanismFactoryTest.cs	(.../ExportableWaveImpactAsphaltCoverFailureMechanismFactoryTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableWaveImpactAsphaltCoverFailureMechanismFactoryTest.cs	(.../ExportableWaveImpactAsphaltCoverFailureMechanismFactoryTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -77,10 +77,9 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(ReferenceLineTestFactory.CreateReferenceLineWithGeometry());
             mocks.ReplayAll();
 
-            assessmentSection.ReferenceLine = ReferenceLineTestFactory.CreateReferenceLineWithGeometry();
-
             var random = new Random(21);
             var failureMechanism = new WaveImpactAsphaltCoverFailureMechanism
             {
Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/ImportInfos/FailureMechanismSectionsContextImportInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/ImportInfos/FailureMechanismSectionsContextImportInfoTest.cs	(.../FailureMechanismSectionsContextImportInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/ImportInfos/FailureMechanismSectionsContextImportInfoTest.cs	(.../FailureMechanismSectionsContextImportInfoTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -91,7 +91,6 @@
             var mocks = new MockRepository();
             var failureMechanism = mocks.Stub<IFailureMechanism>();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
-            assessmentSection.ReferenceLine = null;
             mocks.ReplayAll();
 
             var context = new FailureMechanismSectionsContext(failureMechanism, assessmentSection);
@@ -111,7 +110,7 @@
             var mocks = new MockRepository();
             var failureMechanism = mocks.Stub<IFailureMechanism>();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
-            assessmentSection.ReferenceLine = new ReferenceLine();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(new ReferenceLine());
             mocks.ReplayAll();
 
             var context = new FailureMechanismSectionsContext(failureMechanism, assessmentSection);
@@ -141,10 +140,9 @@
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
             var failureMechanism = mocks.Stub<IFailureMechanism>();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(new ReferenceLine());
             mocks.ReplayAll();
 
-            assessmentSection.ReferenceLine = new ReferenceLine();
-
             var importTarget = new FailureMechanismSectionsContext(failureMechanism, assessmentSection);
 
             // Call
Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/ImportInfos/ForeshoreProfilesContextImportInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/ImportInfos/ForeshoreProfilesContextImportInfoTest.cs	(.../ForeshoreProfilesContextImportInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/ImportInfos/ForeshoreProfilesContextImportInfoTest.cs	(.../ForeshoreProfilesContextImportInfoTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -51,10 +51,9 @@
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
             var failureMechanism = mocks.Stub<IFailureMechanism>();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(new ReferenceLine());
             mocks.ReplayAll();
 
-            assessmentSection.ReferenceLine = new ReferenceLine();
-
             var foreshoreProfiles = new ForeshoreProfileCollection();
 
             var importTarget = new ForeshoreProfilesContext(foreshoreProfiles, failureMechanism, assessmentSection);
@@ -127,7 +126,7 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
-            assessmentSection.ReferenceLine = new ReferenceLine();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(new ReferenceLine());
             var failureMechanism = mocks.Stub<IFailureMechanism>();
             mocks.ReplayAll();
 
@@ -155,7 +154,7 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
-            assessmentSection.ReferenceLine = null;
+            assessmentSection.Stub(a => a.ReferenceLine).Return(new ReferenceLine());
             var failureMechanism = mocks.Stub<IFailureMechanism>();
             mocks.ReplayAll();
 
Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/TreeNodeInfos/ReferenceLineContextTreeNodeInfoTest.cs
===================================================================
diff -u -r2b7a4d261a11c943ea0f0081d45edea6252887cc -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/TreeNodeInfos/ReferenceLineContextTreeNodeInfoTest.cs	(.../ReferenceLineContextTreeNodeInfoTest.cs)	(revision 2b7a4d261a11c943ea0f0081d45edea6252887cc)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/TreeNodeInfos/ReferenceLineContextTreeNodeInfoTest.cs	(.../ReferenceLineContextTreeNodeInfoTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -186,7 +186,7 @@
         {
             // Setup
             var assessmentSection = mocks.Stub<IAssessmentSection>();
-            assessmentSection.ReferenceLine = new ReferenceLine();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(new ReferenceLine());
             mocks.ReplayAll();
 
             var referenceLineContext = new ReferenceLineContext(assessmentSection);
Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/ForeshoreProfileContextUpdateInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/ForeshoreProfileContextUpdateInfoTest.cs	(.../ForeshoreProfileContextUpdateInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/ForeshoreProfileContextUpdateInfoTest.cs	(.../ForeshoreProfileContextUpdateInfoTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -52,10 +52,9 @@
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
             var failureMechanism = mocks.Stub<IFailureMechanism>();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(new ReferenceLine());
             mocks.ReplayAll();
 
-            assessmentSection.ReferenceLine = new ReferenceLine();
-
             var foreshoreProfiles = new ForeshoreProfileCollection();
 
             var importTarget = new ForeshoreProfilesContext(foreshoreProfiles, failureMechanism, assessmentSection);
Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/GrassCoverSlipOffInwardsFailureMechanismSectionsContextUpdateInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/GrassCoverSlipOffInwardsFailureMechanismSectionsContextUpdateInfoTest.cs	(.../GrassCoverSlipOffInwardsFailureMechanismSectionsContextUpdateInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/GrassCoverSlipOffInwardsFailureMechanismSectionsContextUpdateInfoTest.cs	(.../GrassCoverSlipOffInwardsFailureMechanismSectionsContextUpdateInfoTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -162,7 +162,7 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
-            assessmentSection.ReferenceLine = new ReferenceLine();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(new ReferenceLine());
             mocks.ReplayAll();
 
             var failureMechanism = new GrassCoverSlipOffInwardsFailureMechanism();
Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/GrassCoverSlipOffOutwardsFailureMechanismSectionsContextUpdateInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/GrassCoverSlipOffOutwardsFailureMechanismSectionsContextUpdateInfoTest.cs	(.../GrassCoverSlipOffOutwardsFailureMechanismSectionsContextUpdateInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/GrassCoverSlipOffOutwardsFailureMechanismSectionsContextUpdateInfoTest.cs	(.../GrassCoverSlipOffOutwardsFailureMechanismSectionsContextUpdateInfoTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -162,7 +162,7 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
-            assessmentSection.ReferenceLine = new ReferenceLine();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(new ReferenceLine());
             mocks.ReplayAll();
 
             var failureMechanism = new GrassCoverSlipOffOutwardsFailureMechanism();
Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/MacroStabilityOutwardsFailureMechanismSectionsContextUpdateInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/MacroStabilityOutwardsFailureMechanismSectionsContextUpdateInfoTest.cs	(.../MacroStabilityOutwardsFailureMechanismSectionsContextUpdateInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/MacroStabilityOutwardsFailureMechanismSectionsContextUpdateInfoTest.cs	(.../MacroStabilityOutwardsFailureMechanismSectionsContextUpdateInfoTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -162,7 +162,7 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
-            assessmentSection.ReferenceLine = new ReferenceLine();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(new ReferenceLine());
             mocks.ReplayAll();
 
             var failureMechanism = new MacroStabilityOutwardsFailureMechanism();
Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/MicrostabilityFailureMechanismSectionsContextUpdateInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/MicrostabilityFailureMechanismSectionsContextUpdateInfoTest.cs	(.../MicrostabilityFailureMechanismSectionsContextUpdateInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/MicrostabilityFailureMechanismSectionsContextUpdateInfoTest.cs	(.../MicrostabilityFailureMechanismSectionsContextUpdateInfoTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -162,7 +162,7 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
-            assessmentSection.ReferenceLine = new ReferenceLine();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(new ReferenceLine());
             mocks.ReplayAll();
 
             var failureMechanism = new MicrostabilityFailureMechanism();
Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/PipingStructureFailureMechanismSectionsContextUpdateInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/PipingStructureFailureMechanismSectionsContextUpdateInfoTest.cs	(.../PipingStructureFailureMechanismSectionsContextUpdateInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/PipingStructureFailureMechanismSectionsContextUpdateInfoTest.cs	(.../PipingStructureFailureMechanismSectionsContextUpdateInfoTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -162,7 +162,7 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
-            assessmentSection.ReferenceLine = new ReferenceLine();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(new ReferenceLine());
             mocks.ReplayAll();
 
             var failureMechanism = new PipingStructureFailureMechanism();
Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/StrengthStabilityLengthwiseConstructionFailureMechanismSectionsContextUpdateInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/StrengthStabilityLengthwiseConstructionFailureMechanismSectionsContextUpdateInfoTest.cs	(.../StrengthStabilityLengthwiseConstructionFailureMechanismSectionsContextUpdateInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/StrengthStabilityLengthwiseConstructionFailureMechanismSectionsContextUpdateInfoTest.cs	(.../StrengthStabilityLengthwiseConstructionFailureMechanismSectionsContextUpdateInfoTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -162,7 +162,7 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
-            assessmentSection.ReferenceLine = new ReferenceLine();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(new ReferenceLine());
             mocks.ReplayAll();
 
             var failureMechanism = new StrengthStabilityLengthwiseConstructionFailureMechanism();
Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/TechnicalInnovationFailureMechanismSectionsContextUpdateInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/TechnicalInnovationFailureMechanismSectionsContextUpdateInfoTest.cs	(.../TechnicalInnovationFailureMechanismSectionsContextUpdateInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/TechnicalInnovationFailureMechanismSectionsContextUpdateInfoTest.cs	(.../TechnicalInnovationFailureMechanismSectionsContextUpdateInfoTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -162,7 +162,7 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
-            assessmentSection.ReferenceLine = new ReferenceLine();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(new ReferenceLine());
             mocks.ReplayAll();
 
             var failureMechanism = new TechnicalInnovationFailureMechanism();
Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/WaterPressureAsphaltCoverFailureMechanismSectionsContextUpdateInfoTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r147a4c089012e526cf1526ef58919c7b29ae5056
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/WaterPressureAsphaltCoverFailureMechanismSectionsContextUpdateInfoTest.cs	(.../WaterPressureAsphaltCoverFailureMechanismSectionsContextUpdateInfoTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/UpdateInfos/WaterPressureAsphaltCoverFailureMechanismSectionsContextUpdateInfoTest.cs	(.../WaterPressureAsphaltCoverFailureMechanismSectionsContextUpdateInfoTest.cs)	(revision 147a4c089012e526cf1526ef58919c7b29ae5056)
@@ -162,7 +162,7 @@
             // Setup
             var mocks = new MockRepository();
             var assessmentSection = mocks.Stub<IAssessmentSection>();
-            assessmentSection.ReferenceLine = new ReferenceLine();
+            assessmentSection.Stub(a => a.ReferenceLine).Return(new ReferenceLine());
             mocks.ReplayAll();
 
             var failureMechanism = new WaterPressureAsphaltCoverFailureMechanism();