Index: DamEngine/trunk/src/Deltares.DamEngine.Data.Tests/Geotechnics/SoilSurfaceProfileTests.cs
===================================================================
diff -u -r3228 -r3229
--- DamEngine/trunk/src/Deltares.DamEngine.Data.Tests/Geotechnics/SoilSurfaceProfileTests.cs	(.../SoilSurfaceProfileTests.cs)	(revision 3228)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data.Tests/Geotechnics/SoilSurfaceProfileTests.cs	(.../SoilSurfaceProfileTests.cs)	(revision 3229)
@@ -19,11 +19,8 @@
 // Stichting Deltares and remain full property of Stichting Deltares at all times.
 // All rights reserved.using System;
 
-using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using Deltares.DamEngine.Data.Geometry;
 using Deltares.DamEngine.Data.Geotechnics;
 using Deltares.DamEngine.Data.Standard;
@@ -61,7 +58,7 @@
         }
 
         [Test]
-        public void ConvertToSoilProfile2D_WithSurfaceLineAboveSoilLayers_SetsCorrectSurfacesAndGeometry()
+        public void ConvertToSoilProfile2D_WithSurfaceLineFullyAboveSoilLayers_SetsCorrectSurfacesAndGeometry()
         {
             // Setup
             const string bottomLayerName = "BottomLayer";
@@ -106,7 +103,7 @@
                 new GeometryCurve(new Point2D(0, -2), new Point2D(0, 0)),
                 new GeometryCurve(new Point2D(0, 0), new Point2D(5, 10)), 
                 new GeometryCurve(new Point2D(5, 10), new Point2D(10, 10)), 
-                new GeometryCurve(new Point2D(10, 10), new Point2D(10, -2)), 
+                new GeometryCurve(new Point2D(10, 10), new Point2D(10, -2))
             }, topSurface.CurveList);
 
             GeometryLoop middleSurface = soilLayer2Ds.Single(l => string.Equals(l.Name, middleLayerName)).GeometrySurface.OuterLoop;
@@ -128,6 +125,65 @@
             }, bottomSurface.CurveList);
         }
 
+        [Test]
+        public void ConvertToSoilProfile2D_WithSurfaceLineFullyEncasedBySoilLayer_SetsCorrectSurfacesAndGeometry()
+        {
+            // Setup
+            const string bottomLayerName = "BottomLayer";
+            const string middleLayerName = "MiddleLayer";
+            const string topLayerName = "TopLayer";
+
+            var profile = new SoilProfile1D
+            {
+                BottomLevel = -10
+            };
+            profile.Layers.Add(CreateSoilLayer(-5, bottomLayerName));
+            profile.Layers.Add(CreateSoilLayer(-2, middleLayerName));
+
+            SurfaceLine2 surfaceLine = CreateSurfaceLine(new[]
+            {
+                new GeometryPoint(0, -4),
+                new GeometryPoint(5, -2.5),
+                new GeometryPoint(10, -2.5)
+            });
+
+            var soilSurfaceProfile = new SoilSurfaceProfile
+            {
+                SoilProfile = profile,
+                SurfaceLine2 = surfaceLine,
+                DikeEmbankmentMaterial = new Soil
+                {
+                    Name = topLayerName
+                }
+            };
+
+            // Call
+            soilSurfaceProfile.ConvertToSoilProfile2D();
+
+            // Assert
+            var soilLayer2Ds = soilSurfaceProfile.Surfaces;
+            Assert.That(soilLayer2Ds, Has.Count.EqualTo(2));
+
+            GeometryLoop middleSurface = soilLayer2Ds.Single(l => string.Equals(l.Name, middleLayerName)).GeometrySurface.OuterLoop;
+            AssertGeometry(new[]
+            {
+                new GeometryCurve(new Point2D(0, -5), new Point2D(10, -5)),
+                new GeometryCurve(new Point2D(0, -5), new Point2D(0, -4)),
+                new GeometryCurve(new Point2D(0, -4), new Point2D(5, -2.5)),
+                new GeometryCurve(new Point2D(5, -2.5), new Point2D(10, -2.5)),
+                new GeometryCurve(new Point2D(10, -2.5), new Point2D(10, -5))
+            }, middleSurface.CurveList);
+
+            GeometryLoop bottomSurface = soilLayer2Ds.Single(l => string.Equals(l.Name, bottomLayerName)).GeometrySurface.OuterLoop;
+            AssertGeometry(new[]
+            {
+                new GeometryCurve(new Point2D(0, -5), new Point2D(10, -5)),
+                new GeometryCurve(new Point2D(10, -5), new Point2D(10, -10)),
+                new GeometryCurve(new Point2D(10, -10), new Point2D(0, -10)),
+                new GeometryCurve(new Point2D(0, -10), new Point2D(0, -5))
+            }, bottomSurface.CurveList);
+        }
+
         private static void AssertGeometry(IEnumerable<GeometryCurve> expectedCurves, IEnumerable<GeometryCurve> actualCurves)
         {
             int nrOfExpectedCurves = expectedCurves.Count();