Index: Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.IO.Test/Model/Gml/SerializableBoundaryTest.cs
===================================================================
diff -u -ra2efe01be4b38286eb3d6f17fa3aa865b34ab0f2 -r5c017678f919eba8f9459dfd3e57410fe6c95edd
--- Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.IO.Test/Model/Gml/SerializableBoundaryTest.cs	(.../SerializableBoundaryTest.cs)	(revision a2efe01be4b38286eb3d6f17fa3aa865b34ab0f2)
+++ Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.IO.Test/Model/Gml/SerializableBoundaryTest.cs	(.../SerializableBoundaryTest.cs)	(revision 5c017678f919eba8f9459dfd3e57410fe6c95edd)
@@ -20,10 +20,10 @@
 // All rights reserved.
 
 using System;
-using System.Globalization;
 using Core.Common.Base.Geometry;
 using NUnit.Framework;
 using Ringtoets.AssemblyTool.IO.Model.Gml;
+using Ringtoets.AssemblyTool.IO.Model.Helpers;
 using Ringtoets.AssemblyTool.IO.TestUtil;
 
 namespace Ringtoets.AssemblyTool.IO.Test.Model.Gml
@@ -84,10 +84,8 @@
             var boundary = new SerializableBoundary(lowerCorner, upperCorner);
 
             // Assert
-            Assert.AreEqual(lowerCorner.X.ToString(CultureInfo.InvariantCulture) + " " + lowerCorner.Y.ToString(CultureInfo.InvariantCulture),
-                            boundary.Envelope.LowerCorner);
-            Assert.AreEqual(upperCorner.X.ToString(CultureInfo.InvariantCulture) + " " + upperCorner.Y.ToString(CultureInfo.InvariantCulture),
-                            boundary.Envelope.UpperCorner);
+            Assert.AreEqual(GeometrySerializationFormatter.Format(lowerCorner), boundary.Envelope.LowerCorner);
+            Assert.AreEqual(GeometrySerializationFormatter.Format(upperCorner), boundary.Envelope.UpperCorner);
         }
     }
 }
\ No newline at end of file