Index: Application/Ringtoets/test/Application.Ringtoets.Storage.Test/Create/MacroStabilityInwards/MacroStabilityInwardsSoilLayer2DCreateExtensionsTest.cs
===================================================================
diff -u -r88db4d493b026e3f5bb083d1bb33bc607ff0d63e -r1c2f91dd3d03b28ce5e493b068bc34ca4dfc9db7
--- Application/Ringtoets/test/Application.Ringtoets.Storage.Test/Create/MacroStabilityInwards/MacroStabilityInwardsSoilLayer2DCreateExtensionsTest.cs	(.../MacroStabilityInwardsSoilLayer2DCreateExtensionsTest.cs)	(revision 88db4d493b026e3f5bb083d1bb33bc607ff0d63e)
+++ Application/Ringtoets/test/Application.Ringtoets.Storage.Test/Create/MacroStabilityInwards/MacroStabilityInwardsSoilLayer2DCreateExtensionsTest.cs	(.../MacroStabilityInwardsSoilLayer2DCreateExtensionsTest.cs)	(revision 1c2f91dd3d03b28ce5e493b068bc34ca4dfc9db7)
@@ -116,18 +116,6 @@
             AssertHoles(soilLayer, entity);
         }
 
-        private static void AssertHoles(MacroStabilityInwardsSoilLayer2D soilLayer, MacroStabilityInwardsSoilLayerTwoDEntity entity)
-        {
-            string expectedHolesXml = new RingXmlSerializer().ToXml(soilLayer.Holes);
-            Assert.AreEqual(expectedHolesXml, entity.HolesXml);
-        }
-
-        private static void AssertOuterRing(Ring outerRing, MacroStabilityInwardsSoilLayerTwoDEntity entity)
-        {
-            string expectedOuterRingXml = new Point2DXmlSerializer().ToXml(outerRing.Points);
-            Assert.AreEqual(expectedOuterRingXml, entity.OuterRingXml);
-        }
-
         [Test]
         public void Create_WithNaNProperties_ReturnsEntityWithPropertiesSetToNull()
         {
@@ -207,6 +195,18 @@
             TestHelper.AssertAreEqualButNotSame(materialName, entity.MaterialName);
         }
 
+        private static void AssertHoles(MacroStabilityInwardsSoilLayer2D soilLayer, MacroStabilityInwardsSoilLayerTwoDEntity entity)
+        {
+            string expectedHolesXml = new RingCollectionXmlSerializer().ToXml(soilLayer.Holes);
+            Assert.AreEqual(expectedHolesXml, entity.HolesXml);
+        }
+
+        private static void AssertOuterRing(Ring outerRing, MacroStabilityInwardsSoilLayerTwoDEntity entity)
+        {
+            string expectedOuterRingXml = new Point2DCollectionXmlSerializer().ToXml(outerRing.Points);
+            Assert.AreEqual(expectedOuterRingXml, entity.OuterRingXml);
+        }
+
         private static Ring CreateRandomRing(Random random)
         {
             return new Ring(new[]