Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.IO.Test/SoilProfiles/MacroStabilityInwardsSoilLayerTransformerTest.cs
===================================================================
diff -u -rc00359bc9cd54e9020dea5a0a8958b79b8aa945d -r62ad2944be399c2555e6623f2a2ba33f591733fc
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.IO.Test/SoilProfiles/MacroStabilityInwardsSoilLayerTransformerTest.cs	(.../MacroStabilityInwardsSoilLayerTransformerTest.cs)	(revision c00359bc9cd54e9020dea5a0a8958b79b8aa945d)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.IO.Test/SoilProfiles/MacroStabilityInwardsSoilLayerTransformerTest.cs	(.../MacroStabilityInwardsSoilLayerTransformerTest.cs)	(revision 62ad2944be399c2555e6623f2a2ba33f591733fc)
@@ -108,7 +108,7 @@
             // Assert
             Assert.AreEqual(top, soilLayer1D.Top);
 
-            MacroStabilityInwardsSoilLayerData data = soilLayer1D.Data;
+            IMacroStabilityInwardsSoilLayerData data = soilLayer1D.Data;
 
             Assert.AreEqual(materialName, data.MaterialName);
             bool expectedIsAquifer = isAquifer.Equals(1.0);
@@ -376,7 +376,7 @@
             MacroStabilityInwardsSoilLayer2D soilLayer2D = MacroStabilityInwardsSoilLayerTransformer.Transform(layer);
 
             // Assert
-            MacroStabilityInwardsSoilLayerData data = soilLayer2D.Data;
+            IMacroStabilityInwardsSoilLayerData data = soilLayer2D.Data;
 
             Assert.AreEqual(materialName, data.MaterialName);
             bool expectedIsAquifer = isAquifer.Equals(1.0);