Index: Ringtoets/Common/test/Ringtoets.Common.Forms.TestUtil/LocationsViewSynchronizationTester.cs
===================================================================
diff -u -rea806dcdb54587994d490902a55cf4a680899090 -r69d6acd84acd14d6739e70fad44ef155fe1e0f08
--- Ringtoets/Common/test/Ringtoets.Common.Forms.TestUtil/LocationsViewSynchronizationTester.cs	(.../LocationsViewSynchronizationTester.cs)	(revision ea806dcdb54587994d490902a55cf4a680899090)
+++ Ringtoets/Common/test/Ringtoets.Common.Forms.TestUtil/LocationsViewSynchronizationTester.cs	(.../LocationsViewSynchronizationTester.cs)	(revision 69d6acd84acd14d6739e70fad44ef155fe1e0f08)
@@ -338,9 +338,7 @@
             illustrationPointsDataGridView.CurrentCell = illustrationPointsDataGridView.Rows[1].Cells[0];
 
             // Then
-            var selection = view.Selection as SelectedTopLevelSubMechanismIllustrationPoint;
-            Assert.IsNotNull(selection);
-            Assert.AreSame(GetIllustrationPointsControl().Data.ElementAt(1).Source, selection.TopLevelSubMechanismIllustrationPoint);
+            AssertIllustrationPointControlSelection(view.Selection);
         }
 
         [Test]
@@ -358,9 +356,7 @@
             // Precondition
             Assert.AreEqual(4, locationsDataGridView.CurrentRow?.Index);
             Assert.AreEqual(1, illustrationPointsDataGridView.CurrentRow?.Index);
-            var selection = view.Selection as SelectedTopLevelSubMechanismIllustrationPoint;
-            Assert.IsNotNull(selection);
-            Assert.AreSame(GetIllustrationPointsControl().Data.ElementAt(1).Source, selection.TopLevelSubMechanismIllustrationPoint);
+            AssertIllustrationPointControlSelection(view.Selection);
 
             // When
             ReplaceHydraulicBoundaryDatabaseAndNotifyObservers(view);
@@ -385,9 +381,7 @@
             // Precondition
             Assert.AreEqual(4, locationsDataGridView.CurrentRow?.Index);
             Assert.AreEqual(1, illustrationPointsDataGridView.CurrentRow?.Index);
-            var selection = view.Selection as SelectedTopLevelSubMechanismIllustrationPoint;
-            Assert.IsNotNull(selection);
-            Assert.AreSame(GetIllustrationPointsControl().Data.ElementAt(1).Source, selection.TopLevelSubMechanismIllustrationPoint);
+            AssertIllustrationPointControlSelection(view.Selection);
 
             // When
             ClearLocationOutputAndNotifyObservers(view);
@@ -412,21 +406,25 @@
             // Precondition
             Assert.AreEqual(4, locationsDataGridView.CurrentRow?.Index);
             Assert.AreEqual(1, illustrationPointsDataGridView.CurrentRow?.Index);
-            var selection = view.Selection as SelectedTopLevelSubMechanismIllustrationPoint;
-            Assert.IsNotNull(selection);
-            Assert.AreSame(GetIllustrationPointsControl().Data.ElementAt(1).Source, selection.TopLevelSubMechanismIllustrationPoint);
+            AssertIllustrationPointControlSelection(view.Selection);
 
             // When
             AddLocationOutputAndNotifyObservers(view);
 
             // Then
             Assert.AreEqual(4, locationsDataGridView.CurrentRow?.Index);
             Assert.AreEqual(1, illustrationPointsDataGridView.CurrentRow?.Index);
-            selection = view.Selection as SelectedTopLevelSubMechanismIllustrationPoint;
-            Assert.IsNotNull(selection);
-            Assert.AreSame(GetIllustrationPointsControl().Data.ElementAt(1).Source, selection.TopLevelSubMechanismIllustrationPoint);
+            AssertIllustrationPointControlSelection(view.Selection);
         }
 
+        private void AssertIllustrationPointControlSelection(object selection)
+        {
+            var illustrationPointSelection = selection as SelectedTopLevelSubMechanismIllustrationPoint;
+            Assert.IsNotNull(illustrationPointSelection);
+            Assert.AreSame(GetIllustrationPointsControl().Data.ElementAt(1).Source, illustrationPointSelection.TopLevelSubMechanismIllustrationPoint);
+            CollectionAssert.AreEqual(GetIllustrationPointsControl().Data.Select(data => data.ClosingSituation), illustrationPointSelection.ClosingSituations);
+        }
+
         #endregion
     }
 }
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