Index: Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.IO.Test/Configurations/HeightStructuresCalculationConfigurationReaderTest.cs
===================================================================
diff -u -ref881721312166028ed88eaa21dfd1ee8a5cbba4 -r8b567830c978aa32ef7fbe0a16d71f637ff383e3
--- Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.IO.Test/Configurations/HeightStructuresCalculationConfigurationReaderTest.cs	(.../HeightStructuresCalculationConfigurationReaderTest.cs)	(revision ef881721312166028ed88eaa21dfd1ee8a5cbba4)
+++ Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.IO.Test/Configurations/HeightStructuresCalculationConfigurationReaderTest.cs	(.../HeightStructuresCalculationConfigurationReaderTest.cs)	(revision 8b567830c978aa32ef7fbe0a16d71f637ff383e3)
@@ -230,7 +230,7 @@
             var reader = new HeightStructuresCalculationConfigurationReader(filePath);
 
             // Call
-            IList<IConfigurationItem> readConfigurationItems = reader.Read().ToList();
+            List<IConfigurationItem> readConfigurationItems = reader.Read().ToList();
 
             // Assert
             Assert.AreEqual(1, readConfigurationItems.Count);
@@ -265,7 +265,7 @@
             var reader = new HeightStructuresCalculationConfigurationReader(filePath);
 
             // Call
-            IList<IConfigurationItem> readConfigurationItems = reader.Read().ToList();
+            List<IConfigurationItem> readConfigurationItems = reader.Read().ToList();
 
             // Assert
             Assert.AreEqual(1, readConfigurationItems.Count);
@@ -310,7 +310,7 @@
             var reader = new HeightStructuresCalculationConfigurationReader(filePath);
 
             // Call
-            IList<IConfigurationItem> readConfigurationItems = reader.Read().ToList();
+            List<IConfigurationItem> readConfigurationItems = reader.Read().ToList();
 
             // Assert
             Assert.AreEqual(1, readConfigurationItems.Count);
@@ -355,7 +355,7 @@
             var reader = new HeightStructuresCalculationConfigurationReader(filePath);
 
             // Call
-            IList<IConfigurationItem> readConfigurationItems = reader.Read().ToList();
+            List<IConfigurationItem> readConfigurationItems = reader.Read().ToList();
 
             // Assert
             Assert.AreEqual(1, readConfigurationItems.Count);
@@ -400,7 +400,7 @@
             var reader = new HeightStructuresCalculationConfigurationReader(filePath);
 
             // Call
-            IList<IConfigurationItem> readConfigurationItems = reader.Read().ToList();
+            List<IConfigurationItem> readConfigurationItems = reader.Read().ToList();
 
             // Assert
             Assert.AreEqual(1, readConfigurationItems.Count);
@@ -441,7 +441,7 @@
             var reader = new HeightStructuresCalculationConfigurationReader(filePath);
 
             // Call
-            IList<IConfigurationItem> readConfigurationItems = reader.Read().ToList();
+            List<IConfigurationItem> readConfigurationItems = reader.Read().ToList();
 
             // Assert
             Assert.AreEqual(1, readConfigurationItems.Count);