Index: DamEngine/trunk/src/Deltares.DamEngine.Data.Tests/Geotechnics/SoilProfile2DSurfaceLineHelperTests.cs
===================================================================
diff -u -r6229 -r6230
--- DamEngine/trunk/src/Deltares.DamEngine.Data.Tests/Geotechnics/SoilProfile2DSurfaceLineHelperTests.cs	(.../SoilProfile2DSurfaceLineHelperTests.cs)	(revision 6229)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data.Tests/Geotechnics/SoilProfile2DSurfaceLineHelperTests.cs	(.../SoilProfile2DSurfaceLineHelperTests.cs)	(revision 6230)
@@ -22,7 +22,6 @@
 using System.Collections.Generic;
 using System.Linq;
 using Deltares.DamEngine.Data.Geometry;
-using Deltares.DamEngine.Data.GeometryExport;
 using Deltares.DamEngine.Data.Geotechnics;
 using Deltares.DamEngine.Data.Standard;
 using Deltares.DamEngine.TestHelpers.Factories;
@@ -147,7 +146,6 @@
     public class TestCaseZigZagSurfaceLine
     {
         public SurfaceLine2 GivenZigZagSurfaceLine { get; init; }
-        public double GivenXStartOfSoilProfile { get; init; }
         public int ExpectedSurfaceCount { get; init; }
         public SoilLayer2D ExpectedSurface1 { get; init; }
         public SoilLayer2D ExpectedSurface2 { get; init; }
@@ -312,11 +310,11 @@
         });
     }
     
-    [Test, TestCaseSource(nameof(ZigZagSurfaceLinesTestCases)), Category("Work_In_Progress")]
+    [Test, TestCaseSource(nameof(ZigZagSurfaceLinesTestCases))]
     public void GivenComplexShiftedSoilProfile2D_WhenCombiningWithZigZagSurfaceLine_ThenCorrectNewSoilProfile2DIsCreated(TestCaseZigZagSurfaceLine testCaseSurfaceLine)
     {
         // Given
-        SoilProfile2D soilProfile2D = FactoryForSoilProfiles.CreateSoilProfile2DWithSixSurfacesFormingTwoLayers(testCaseSurfaceLine.GivenXStartOfSoilProfile);
+        SoilProfile2D soilProfile2D = FactoryForSoilProfiles.CreateSoilProfile2DWithSixSurfacesFormingTwoLayers();
         var defaultSoil = new Soil
         {
             Name = "Filling material"
@@ -393,7 +391,6 @@
                 {
                     TestNumber = 1,
                     GivenZigZagSurfaceLine = FactoryForSurfaceLines.CreateSurfaceLineInZigZag(-50, 10),
-                    GivenXStartOfSoilProfile = -60,
                     ExpectedSurfaceCount = 10, 
                     // 4 extra surfaces created : 2 below the highest corners of the "zigzag" surface line + 2 on the left side (between Z=60 and 70)
                     ExpectedFilling1 = FactoryForSoilProfiles.CreateQuadrilateralSoilLayer2D(new Point2D(-50, 10), new Point2D(-30, 12), new Point2D(-10, 10), new Point2D(-20, 10), newSoilProfile2D, soilFilling),
@@ -417,7 +414,6 @@
                 {
                     TestNumber = 2,
                     GivenZigZagSurfaceLine = FactoryForSurfaceLines.CreateSurfaceLineInZigZag(-50, 13),
-                    GivenXStartOfSoilProfile = -60,
                     ExpectedSurfaceCount = 9, 
                     // 3 extra surfaces created: 1 below the "zigzag" surface line + 2 on the left side (between Z=60 and 70)
                     ExpectedFilling1 = FactoryForSoilProfiles.CreatePolygoneSoilLayer2D([
@@ -454,7 +450,6 @@
                 {
                     TestNumber = 3,
                     GivenZigZagSurfaceLine = FactoryForSurfaceLines.CreateSurfaceLineInZigZag(-50, 5),
-                    GivenXStartOfSoilProfile = -60,
                     ExpectedSurfaceCount = 8, 
                     // 2 extra surfaces created on the left side (between Z=60 and 70)
                     ExpectedFilling1 = null,
@@ -477,7 +472,6 @@
                 {
                     TestNumber = 4,
                     GivenZigZagSurfaceLine = FactoryForSurfaceLines.CreateSurfaceLineInZigZag(-50, 0),
-                    GivenXStartOfSoilProfile = -60,
                     ExpectedSurfaceCount = 8,
                     // 2 extra surfaces created on the left side (between Z=60 and 70)
                     ExpectedFilling1 = null,
@@ -500,7 +494,6 @@
                 {
                     TestNumber = 5,
                     GivenZigZagSurfaceLine = FactoryForSurfaceLines.CreateSurfaceLineInZigZag(-40, 10),
-                    GivenXStartOfSoilProfile = -65,
                     ExpectedSurfaceCount = 10,
                     // Only few surfaces are tested
                     ExpectedFilling1 = FactoryForSoilProfiles.CreateQuadrilateralSoilLayer2D(new Point2D(-40, 10), new Point2D(-20, 12), new Point2D(0, 10), new Point2D(-20, 10), newSoilProfile2D, soilFilling),
@@ -523,7 +516,6 @@
                 {
                     TestNumber = 6,
                     GivenZigZagSurfaceLine = FactoryForSurfaceLines.CreateSurfaceLineInZigZag(10, 10),
-                    GivenXStartOfSoilProfile = -30,
                     ExpectedSurfaceCount = 7,
                     // Only few surfaces are tested
                     ExpectedFilling1 = FactoryForSoilProfiles.CreateTriangularSoilLayer2D(new Point2D(10, 10), new Point2D(30, 12), new Point2D(50, 10), newSoilProfile2D, soilFilling),
@@ -546,7 +538,6 @@
                 {
                     TestNumber = 7,
                     GivenZigZagSurfaceLine = FactoryForSurfaceLines.CreateSurfaceLineInZigZag(-60, 10),
-                    GivenXStartOfSoilProfile = -80,
                     ExpectedSurfaceCount = 10,
                     // Only few surfaces are tested
                     ExpectedFilling1 = FactoryForSoilProfiles.CreateQuadrilateralSoilLayer2D(new Point2D(-60, 10), new Point2D(-40, 12), new Point2D(-20, 10), new Point2D(-50, 10), newSoilProfile2D, soilFilling),
@@ -569,7 +560,6 @@
                 {
                     TestNumber = 8,
                     GivenZigZagSurfaceLine = FactoryForSurfaceLines.CreateSurfaceLineInZigZag(-110, 10),
-                    GivenXStartOfSoilProfile = -25,
                     ExpectedSurfaceCount = 9,
                     // Only few surfaces are tested
                     ExpectedFilling1 = FactoryForSoilProfiles.CreateTriangularSoilLayer2D(new Point2D(-110, 10), new Point2D(-90, 12), new Point2D(-70, 10), newSoilProfile2D, soilFilling),
@@ -592,7 +582,6 @@
                 {
                     TestNumber = 9,
                     GivenZigZagSurfaceLine = FactoryForSurfaceLines.CreateSurfaceLineInZigZag(50, -5),
-                    GivenXStartOfSoilProfile = -50,
                     ExpectedSurfaceCount = 2,
                     ExpectedFilling1 = null,
                     ExpectedFilling2 = null,