Index: Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Plugin.Test/TreeNodeInfos/ClosingStructuresCalculationGroupContextTreeNodeInfoTest.cs
===================================================================
diff -u -r8b60c9e846480f3ffeeb263bfea5d3367bf6bee3 -r12dd75e49af7d033f00f1c6d05bfadd11eba85cc
--- Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Plugin.Test/TreeNodeInfos/ClosingStructuresCalculationGroupContextTreeNodeInfoTest.cs	(.../ClosingStructuresCalculationGroupContextTreeNodeInfoTest.cs)	(revision 8b60c9e846480f3ffeeb263bfea5d3367bf6bee3)
+++ Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Plugin.Test/TreeNodeInfos/ClosingStructuresCalculationGroupContextTreeNodeInfoTest.cs	(.../ClosingStructuresCalculationGroupContextTreeNodeInfoTest.cs)	(revision 12dd75e49af7d033f00f1c6d05bfadd11eba85cc)
@@ -179,11 +179,13 @@
             Assert.AreEqual(group.Children.Count, children.Length);
             var calculationGroupContext = (ClosingStructuresCalculationGroupContext) children[0];
             Assert.AreSame(childGroup, calculationGroupContext.WrappedData);
+            Assert.AreSame(group, calculationGroupContext.Parent);
             Assert.AreSame(failureMechanism, calculationGroupContext.FailureMechanism);
             Assert.AreSame(assessmentSection, calculationGroupContext.AssessmentSection);
             Assert.AreSame(calculationItem, children[1]);
             var calculationContext = (ClosingStructuresCalculationContext) children[2];
             Assert.AreSame(childCalculation, calculationContext.WrappedData);
+            Assert.AreSame(group, calculationContext.Parent);
             Assert.AreSame(assessmentSection, calculationContext.AssessmentSection);
         }
 
Index: Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Plugin.Test/TreeNodeInfos/GrassCoverErosionInwardsCalculationGroupContextTreeNodeInfoTest.cs
===================================================================
diff -u -r8b60c9e846480f3ffeeb263bfea5d3367bf6bee3 -r12dd75e49af7d033f00f1c6d05bfadd11eba85cc
--- Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Plugin.Test/TreeNodeInfos/GrassCoverErosionInwardsCalculationGroupContextTreeNodeInfoTest.cs	(.../GrassCoverErosionInwardsCalculationGroupContextTreeNodeInfoTest.cs)	(revision 8b60c9e846480f3ffeeb263bfea5d3367bf6bee3)
+++ Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Plugin.Test/TreeNodeInfos/GrassCoverErosionInwardsCalculationGroupContextTreeNodeInfoTest.cs	(.../GrassCoverErosionInwardsCalculationGroupContextTreeNodeInfoTest.cs)	(revision 12dd75e49af7d033f00f1c6d05bfadd11eba85cc)
@@ -180,11 +180,13 @@
             Assert.AreEqual(group.Children.Count, children.Length);
             var calculationGroupContext = (GrassCoverErosionInwardsCalculationGroupContext) children[0];
             Assert.AreSame(childGroup, calculationGroupContext.WrappedData);
+            Assert.AreSame(group, calculationGroupContext.Parent);
             Assert.AreSame(failureMechanism, calculationGroupContext.FailureMechanism);
             Assert.AreSame(assessmentSection, calculationGroupContext.AssessmentSection);
             Assert.AreSame(calculationItem, children[1]);
             var calculationContext = (GrassCoverErosionInwardsCalculationContext) children[2];
             Assert.AreSame(childCalculation, calculationContext.WrappedData);
+            Assert.AreSame(group, calculationContext.Parent);
             Assert.AreSame(assessmentSection, calculationContext.AssessmentSection);
         }
 
Index: Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Plugin.Test/TreeNodeInfos/HeightStructuresCalculationGroupContextTreeNodeInfoTest.cs
===================================================================
diff -u -r8b60c9e846480f3ffeeb263bfea5d3367bf6bee3 -r12dd75e49af7d033f00f1c6d05bfadd11eba85cc
--- Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Plugin.Test/TreeNodeInfos/HeightStructuresCalculationGroupContextTreeNodeInfoTest.cs	(.../HeightStructuresCalculationGroupContextTreeNodeInfoTest.cs)	(revision 8b60c9e846480f3ffeeb263bfea5d3367bf6bee3)
+++ Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Plugin.Test/TreeNodeInfos/HeightStructuresCalculationGroupContextTreeNodeInfoTest.cs	(.../HeightStructuresCalculationGroupContextTreeNodeInfoTest.cs)	(revision 12dd75e49af7d033f00f1c6d05bfadd11eba85cc)
@@ -180,11 +180,13 @@
             Assert.AreEqual(group.Children.Count, children.Length);
             var calculationGroupContext = (HeightStructuresCalculationGroupContext) children[0];
             Assert.AreSame(childGroup, calculationGroupContext.WrappedData);
+            Assert.AreSame(group, calculationGroupContext.Parent);
             Assert.AreSame(failureMechanism, calculationGroupContext.FailureMechanism);
             Assert.AreSame(assessmentSection, calculationGroupContext.AssessmentSection);
             Assert.AreSame(calculationItem, children[1]);
             var calculationContext = (HeightStructuresCalculationContext) children[2];
             Assert.AreSame(childCalculation, calculationContext.WrappedData);
+            Assert.AreSame(group, calculationContext.Parent);
             Assert.AreSame(assessmentSection, calculationContext.AssessmentSection);
         }
 
Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Plugin.Test/TreeNodeInfos/MacroStabilityInwardsCalculationGroupContextTreeNodeInfoTest.cs
===================================================================
diff -u -r8b60c9e846480f3ffeeb263bfea5d3367bf6bee3 -r12dd75e49af7d033f00f1c6d05bfadd11eba85cc
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Plugin.Test/TreeNodeInfos/MacroStabilityInwardsCalculationGroupContextTreeNodeInfoTest.cs	(.../MacroStabilityInwardsCalculationGroupContextTreeNodeInfoTest.cs)	(revision 8b60c9e846480f3ffeeb263bfea5d3367bf6bee3)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Plugin.Test/TreeNodeInfos/MacroStabilityInwardsCalculationGroupContextTreeNodeInfoTest.cs	(.../MacroStabilityInwardsCalculationGroupContextTreeNodeInfoTest.cs)	(revision 12dd75e49af7d033f00f1c6d05bfadd11eba85cc)
@@ -185,9 +185,11 @@
             Assert.AreSame(calculationItem, children[0]);
             var returnedCalculationContext = (MacroStabilityInwardsCalculationScenarioContext) children[1];
             Assert.AreSame(childCalculation, returnedCalculationContext.WrappedData);
+            Assert.AreSame(group, returnedCalculationContext.Parent);
             Assert.AreSame(failureMechanism, returnedCalculationContext.FailureMechanism);
             var returnedCalculationGroupContext = (MacroStabilityInwardsCalculationGroupContext) children[2];
             Assert.AreSame(childGroup, returnedCalculationGroupContext.WrappedData);
+            Assert.AreSame(group, returnedCalculationGroupContext.Parent);
             Assert.AreSame(failureMechanism, returnedCalculationGroupContext.FailureMechanism);
             Assert.AreSame(assessmentSection, returnedCalculationGroupContext.AssessmentSection);
         }
Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingCalculationGroupContextTreeNodeInfoTest.cs
===================================================================
diff -u -r8b60c9e846480f3ffeeb263bfea5d3367bf6bee3 -r12dd75e49af7d033f00f1c6d05bfadd11eba85cc
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingCalculationGroupContextTreeNodeInfoTest.cs	(.../PipingCalculationGroupContextTreeNodeInfoTest.cs)	(revision 8b60c9e846480f3ffeeb263bfea5d3367bf6bee3)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/TreeNodeInfos/PipingCalculationGroupContextTreeNodeInfoTest.cs	(.../PipingCalculationGroupContextTreeNodeInfoTest.cs)	(revision 12dd75e49af7d033f00f1c6d05bfadd11eba85cc)
@@ -188,9 +188,11 @@
             Assert.AreSame(calculationItem, children[0]);
             var returnedCalculationContext = (PipingCalculationScenarioContext) children[1];
             Assert.AreSame(childCalculation, returnedCalculationContext.WrappedData);
+            Assert.AreSame(group, returnedCalculationContext.Parent);
             Assert.AreSame(pipingFailureMechanism, returnedCalculationContext.FailureMechanism);
             var returnedCalculationGroupContext = (PipingCalculationGroupContext) children[2];
             Assert.AreSame(childGroup, returnedCalculationGroupContext.WrappedData);
+            Assert.AreSame(group, returnedCalculationGroupContext.Parent);
             Assert.AreSame(pipingFailureMechanism, returnedCalculationGroupContext.FailureMechanism);
             Assert.AreSame(assessmentSection, returnedCalculationGroupContext.AssessmentSection);
         }
Index: Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Plugin.Test/TreeNodeInfos/StabilityPointStructuresCalculationGroupContextTreeNodeInfoTest.cs
===================================================================
diff -u -r8b60c9e846480f3ffeeb263bfea5d3367bf6bee3 -r12dd75e49af7d033f00f1c6d05bfadd11eba85cc
--- Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Plugin.Test/TreeNodeInfos/StabilityPointStructuresCalculationGroupContextTreeNodeInfoTest.cs	(.../StabilityPointStructuresCalculationGroupContextTreeNodeInfoTest.cs)	(revision 8b60c9e846480f3ffeeb263bfea5d3367bf6bee3)
+++ Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Plugin.Test/TreeNodeInfos/StabilityPointStructuresCalculationGroupContextTreeNodeInfoTest.cs	(.../StabilityPointStructuresCalculationGroupContextTreeNodeInfoTest.cs)	(revision 12dd75e49af7d033f00f1c6d05bfadd11eba85cc)
@@ -178,10 +178,12 @@
             Assert.AreEqual(group.Children.Count, children.Length);
             var calculationGroupContext = (StabilityPointStructuresCalculationGroupContext) children[0];
             Assert.AreSame(childGroup, calculationGroupContext.WrappedData);
+            Assert.AreSame(group, calculationGroupContext.Parent);
             Assert.AreSame(failureMechanism, calculationGroupContext.FailureMechanism);
             Assert.AreSame(assessmentSection, calculationGroupContext.AssessmentSection);
             var calculationContext = (StabilityPointStructuresCalculationContext) children[1];
             Assert.AreSame(childCalculation, calculationContext.WrappedData);
+            Assert.AreSame(group, calculationContext.Parent);
             Assert.AreSame(assessmentSection, calculationContext.AssessmentSection);
         }