Index: src/Deltares.DSoilModel.Forms.Tests/SosSoilLayer1DControlTests.cs
===================================================================
diff -u -r359 -r374
--- src/Deltares.DSoilModel.Forms.Tests/SosSoilLayer1DControlTests.cs	(.../SosSoilLayer1DControlTests.cs)	(revision 359)
+++ src/Deltares.DSoilModel.Forms.Tests/SosSoilLayer1DControlTests.cs	(.../SosSoilLayer1DControlTests.cs)	(revision 374)
@@ -17,6 +17,11 @@
         [Test]
         public void ControlBindingsTest()
         {
+            var p = new DSoilModelProject();
+            var soil1 = new Soil("TestSoil1", Color.Beige);
+            var soil2 = new Soil("TestSoil2", Color.Red);
+            p.Soils.Add(soil2);
+            p.Soils.Add(soil1);
             var layer = new SosSoilLayer1D
             {
                 TopLevel = 9.9,
@@ -25,16 +30,14 @@
                 MinimumTopLevel = -1,
                 RemarkTopLevel = "remark testSos1",
                 IsAquifer = true,
-                Soil = new Soil("TestSoil1", Color.Beige)
+                Soil = soil1
             };
+            SoilLayer.DomainProvider = p;
 
-            SoilLayer.DomainProvider = new DSoilModelProject();
-
             PropertyControl.SelectedObject = layer;
 
-            //BindSupport.BindTextAndValue(this, , , typeof(SosSoilLayer1D), "Soil");
             TestLabelControlVisibleValue(PropertyControl, "SoilLabel", true, "Grondsoort");
-//            TestTextEditVisibleEnabledValue(PropertyControl, "SoilEdit", true, true, layer, l => l.Soil, new Soil()); // TODO: combobox without signs of the soil data
+            TestComboBoxVisibleEnabledValue(PropertyControl, "SoilEdit", true, true, layer, l => l.Soil, soil2); 
 
             TestLabelControlVisibleValue(PropertyControl, "TopLabel", true, "Bovenkant [m NAP]");
             TestSpinEditVisibleEnabledValue(PropertyControl, "TopEdit", true, true, layer, l => l.TopLevel, 9.1);